Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
authorLinus Torvalds <torvalds@linux-foundation.org>
Sun, 11 Oct 2009 18:12:33 +0000 (11:12 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sun, 11 Oct 2009 18:12:33 +0000 (11:12 -0700)
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (34 commits)
  [SCSI] qla2xxx: Fix NULL ptr deref bug in fail path during queue create
  [SCSI] st: fix possible memory use after free after MTSETBLK ioctl
  [SCSI] be2iscsi: Moving to pci_pools v3
  [SCSI] libiscsi: iscsi_session_setup to allow for private space
  [SCSI] be2iscsi: add 10Gbps iSCSI - BladeEngine 2 driver
  [SCSI] zfcp: Fix hang when offlining device with offline chpid
  [SCSI] zfcp: Fix lockdep warning when offlining device with offline chpid
  [SCSI] zfcp: Fix oops during shutdown of offline device
  [SCSI] zfcp: Fix initial device and cfdc for delayed adapter allocation
  [SCSI] zfcp: correctly initialize unchained requests
  [SCSI] mpt2sas: Bump version 02.100.03.00
  [SCSI] mpt2sas: Support dev remove when phy status is MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT
  [SCSI] mpt2sas: Timeout occurred within the HANDSHAKE logic while waiting on firmware to ACK.
  [SCSI] mpt2sas: Call init_completion on a per request basis.
  [SCSI] mpt2sas: Target Reset will be issued from Interrupt context.
  [SCSI] mpt2sas: Added SCSIIO, Internal and high priority memory pools to support multiple TM
  [SCSI] mpt2sas: Copyright change to 2009.
  [SCSI] mpt2sas: Added mpi2_history.txt for MPI2 headers.
  [SCSI] mpt2sas: Update driver to MPI2 REV K headers.
  [SCSI] bfa: Brocade BFA FC SCSI driver
  ...

259 files changed:
Documentation/scsi/hptiop.txt
MAINTAINERS
drivers/infiniband/ulp/iser/iscsi_iser.c
drivers/s390/scsi/zfcp_aux.c
drivers/s390/scsi/zfcp_ccw.c
drivers/s390/scsi/zfcp_cfdc.c
drivers/s390/scsi/zfcp_ext.h
drivers/s390/scsi/zfcp_fsf.c
drivers/scsi/Kconfig
drivers/scsi/Makefile
drivers/scsi/be2iscsi/Kconfig [new file with mode: 0644]
drivers/scsi/be2iscsi/Makefile [new file with mode: 0644]
drivers/scsi/be2iscsi/be.h [new file with mode: 0644]
drivers/scsi/be2iscsi/be_cmds.c [new file with mode: 0644]
drivers/scsi/be2iscsi/be_cmds.h [new file with mode: 0644]
drivers/scsi/be2iscsi/be_iscsi.c [new file with mode: 0644]
drivers/scsi/be2iscsi/be_iscsi.h [new file with mode: 0644]
drivers/scsi/be2iscsi/be_main.c [new file with mode: 0644]
drivers/scsi/be2iscsi/be_main.h [new file with mode: 0644]
drivers/scsi/be2iscsi/be_mgmt.c [new file with mode: 0644]
drivers/scsi/be2iscsi/be_mgmt.h [new file with mode: 0644]
drivers/scsi/bfa/Makefile [new file with mode: 0644]
drivers/scsi/bfa/bfa_callback_priv.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_cb_ioim_macros.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_cee.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_core.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_csdebug.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_fcpim.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_fcpim_priv.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_fcport.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_fcs.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_fcs_lport.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_fcs_port.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_fcs_uf.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_fcxp.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_fcxp_priv.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_fwimg_priv.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_hw_cb.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_hw_ct.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_intr.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_intr_priv.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_ioc.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_ioc.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_iocfc.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_iocfc.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_iocfc_q.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_ioim.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_itnim.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_log.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_log_module.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_lps.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_lps_priv.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_module.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_modules_priv.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_os_inc.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_port.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_port_priv.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_priv.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_rport.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_rport_priv.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_sgpg.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_sgpg_priv.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_sm.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_timer.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_trcmod_priv.h [new file with mode: 0644]
drivers/scsi/bfa/bfa_tskim.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_uf.c [new file with mode: 0644]
drivers/scsi/bfa/bfa_uf_priv.h [new file with mode: 0644]
drivers/scsi/bfa/bfad.c [new file with mode: 0644]
drivers/scsi/bfa/bfad_attr.c [new file with mode: 0644]
drivers/scsi/bfa/bfad_attr.h [new file with mode: 0644]
drivers/scsi/bfa/bfad_drv.h [new file with mode: 0644]
drivers/scsi/bfa/bfad_fwimg.c [new file with mode: 0644]
drivers/scsi/bfa/bfad_im.c [new file with mode: 0644]
drivers/scsi/bfa/bfad_im.h [new file with mode: 0644]
drivers/scsi/bfa/bfad_im_compat.h [new file with mode: 0644]
drivers/scsi/bfa/bfad_intr.c [new file with mode: 0644]
drivers/scsi/bfa/bfad_ipfc.h [new file with mode: 0644]
drivers/scsi/bfa/bfad_os.c [new file with mode: 0644]
drivers/scsi/bfa/bfad_tm.h [new file with mode: 0644]
drivers/scsi/bfa/bfad_trcmod.h [new file with mode: 0644]
drivers/scsi/bfa/fab.c [new file with mode: 0644]
drivers/scsi/bfa/fabric.c [new file with mode: 0644]
drivers/scsi/bfa/fcbuild.c [new file with mode: 0644]
drivers/scsi/bfa/fcbuild.h [new file with mode: 0644]
drivers/scsi/bfa/fcpim.c [new file with mode: 0644]
drivers/scsi/bfa/fcptm.c [new file with mode: 0644]
drivers/scsi/bfa/fcs.h [new file with mode: 0644]
drivers/scsi/bfa/fcs_auth.h [new file with mode: 0644]
drivers/scsi/bfa/fcs_fabric.h [new file with mode: 0644]
drivers/scsi/bfa/fcs_fcpim.h [new file with mode: 0644]
drivers/scsi/bfa/fcs_fcptm.h [new file with mode: 0644]
drivers/scsi/bfa/fcs_fcxp.h [new file with mode: 0644]
drivers/scsi/bfa/fcs_lport.h [new file with mode: 0644]
drivers/scsi/bfa/fcs_ms.h [new file with mode: 0644]
drivers/scsi/bfa/fcs_port.h [new file with mode: 0644]
drivers/scsi/bfa/fcs_rport.h [new file with mode: 0644]
drivers/scsi/bfa/fcs_trcmod.h [new file with mode: 0644]
drivers/scsi/bfa/fcs_uf.h [new file with mode: 0644]
drivers/scsi/bfa/fcs_vport.h [new file with mode: 0644]
drivers/scsi/bfa/fdmi.c [new file with mode: 0644]
drivers/scsi/bfa/include/aen/bfa_aen.h [new file with mode: 0644]
drivers/scsi/bfa/include/aen/bfa_aen_adapter.h [new file with mode: 0644]
drivers/scsi/bfa/include/aen/bfa_aen_audit.h [new file with mode: 0644]
drivers/scsi/bfa/include/aen/bfa_aen_ethport.h [new file with mode: 0644]
drivers/scsi/bfa/include/aen/bfa_aen_ioc.h [new file with mode: 0644]
drivers/scsi/bfa/include/aen/bfa_aen_itnim.h [new file with mode: 0644]
drivers/scsi/bfa/include/aen/bfa_aen_lport.h [new file with mode: 0644]
drivers/scsi/bfa/include/aen/bfa_aen_port.h [new file with mode: 0644]
drivers/scsi/bfa/include/aen/bfa_aen_rport.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfa.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfa_fcpim.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfa_fcptm.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfa_svc.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfa_timer.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi_boot.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi_cbreg.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi_cee.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi_ctreg.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi_fabric.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi_fcpim.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi_fcxp.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi_ioc.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi_iocfc.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi_lport.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi_lps.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi_port.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi_pport.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi_rport.h [new file with mode: 0644]
drivers/scsi/bfa/include/bfi/bfi_uf.h [new file with mode: 0644]
drivers/scsi/bfa/include/cna/bfa_cna_trcmod.h [new file with mode: 0644]
drivers/scsi/bfa/include/cna/cee/bfa_cee.h [new file with mode: 0644]
drivers/scsi/bfa/include/cna/port/bfa_port.h [new file with mode: 0644]
drivers/scsi/bfa/include/cna/pstats/ethport_defs.h [new file with mode: 0644]
drivers/scsi/bfa/include/cna/pstats/phyport_defs.h [new file with mode: 0644]
drivers/scsi/bfa/include/cs/bfa_checksum.h [new file with mode: 0644]
drivers/scsi/bfa/include/cs/bfa_debug.h [new file with mode: 0644]
drivers/scsi/bfa/include/cs/bfa_log.h [new file with mode: 0644]
drivers/scsi/bfa/include/cs/bfa_perf.h [new file with mode: 0644]
drivers/scsi/bfa/include/cs/bfa_plog.h [new file with mode: 0644]
drivers/scsi/bfa/include/cs/bfa_q.h [new file with mode: 0644]
drivers/scsi/bfa/include/cs/bfa_sm.h [new file with mode: 0644]
drivers/scsi/bfa/include/cs/bfa_trc.h [new file with mode: 0644]
drivers/scsi/bfa/include/cs/bfa_wc.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_adapter.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_aen.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_audit.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_auth.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_boot.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_cee.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_driver.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_ethport.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_fcpim.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_im_common.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_im_team.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_ioc.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_iocfc.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_ipfc.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_itnim.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_led.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_lport.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_mfg.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_pci.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_pm.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_pom.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_port.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_pport.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_qos.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_rport.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_status.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_tin.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_tsensor.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_types.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_version.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_vf.h [new file with mode: 0644]
drivers/scsi/bfa/include/defs/bfa_defs_vport.h [new file with mode: 0644]
drivers/scsi/bfa/include/fcb/bfa_fcb.h [new file with mode: 0644]
drivers/scsi/bfa/include/fcb/bfa_fcb_fcpim.h [new file with mode: 0644]
drivers/scsi/bfa/include/fcb/bfa_fcb_port.h [new file with mode: 0644]
drivers/scsi/bfa/include/fcb/bfa_fcb_rport.h [new file with mode: 0644]
drivers/scsi/bfa/include/fcb/bfa_fcb_vf.h [new file with mode: 0644]
drivers/scsi/bfa/include/fcb/bfa_fcb_vport.h [new file with mode: 0644]
drivers/scsi/bfa/include/fcs/bfa_fcs.h [new file with mode: 0644]
drivers/scsi/bfa/include/fcs/bfa_fcs_auth.h [new file with mode: 0644]
drivers/scsi/bfa/include/fcs/bfa_fcs_fabric.h [new file with mode: 0644]
drivers/scsi/bfa/include/fcs/bfa_fcs_fcpim.h [new file with mode: 0644]
drivers/scsi/bfa/include/fcs/bfa_fcs_fdmi.h [new file with mode: 0644]
drivers/scsi/bfa/include/fcs/bfa_fcs_lport.h [new file with mode: 0644]
drivers/scsi/bfa/include/fcs/bfa_fcs_rport.h [new file with mode: 0644]
drivers/scsi/bfa/include/fcs/bfa_fcs_vport.h [new file with mode: 0644]
drivers/scsi/bfa/include/log/bfa_log_fcs.h [new file with mode: 0644]
drivers/scsi/bfa/include/log/bfa_log_hal.h [new file with mode: 0644]
drivers/scsi/bfa/include/log/bfa_log_linux.h [new file with mode: 0644]
drivers/scsi/bfa/include/log/bfa_log_wdrv.h [new file with mode: 0644]
drivers/scsi/bfa/include/protocol/ct.h [new file with mode: 0644]
drivers/scsi/bfa/include/protocol/fc.h [new file with mode: 0644]
drivers/scsi/bfa/include/protocol/fc_sp.h [new file with mode: 0644]
drivers/scsi/bfa/include/protocol/fcp.h [new file with mode: 0644]
drivers/scsi/bfa/include/protocol/fdmi.h [new file with mode: 0644]
drivers/scsi/bfa/include/protocol/pcifw.h [new file with mode: 0644]
drivers/scsi/bfa/include/protocol/scsi.h [new file with mode: 0644]
drivers/scsi/bfa/include/protocol/types.h [new file with mode: 0644]
drivers/scsi/bfa/loop.c [new file with mode: 0644]
drivers/scsi/bfa/lport_api.c [new file with mode: 0644]
drivers/scsi/bfa/lport_priv.h [new file with mode: 0644]
drivers/scsi/bfa/ms.c [new file with mode: 0644]
drivers/scsi/bfa/n2n.c [new file with mode: 0644]
drivers/scsi/bfa/ns.c [new file with mode: 0644]
drivers/scsi/bfa/plog.c [new file with mode: 0644]
drivers/scsi/bfa/rport.c [new file with mode: 0644]
drivers/scsi/bfa/rport_api.c [new file with mode: 0644]
drivers/scsi/bfa/rport_ftrs.c [new file with mode: 0644]
drivers/scsi/bfa/scn.c [new file with mode: 0644]
drivers/scsi/bfa/vfapi.c [new file with mode: 0644]
drivers/scsi/bfa/vport.c [new file with mode: 0644]
drivers/scsi/bnx2i/bnx2i.h
drivers/scsi/bnx2i/bnx2i_hwi.c
drivers/scsi/bnx2i/bnx2i_iscsi.c
drivers/scsi/cxgb3i/cxgb3i_iscsi.c
drivers/scsi/device_handler/scsi_dh_rdac.c
drivers/scsi/hptiop.c
drivers/scsi/hptiop.h
drivers/scsi/iscsi_tcp.c
drivers/scsi/libiscsi.c
drivers/scsi/lpfc/lpfc_scsi.c
drivers/scsi/mpt2sas/Kconfig
drivers/scsi/mpt2sas/mpi/mpi2.h
drivers/scsi/mpt2sas/mpi/mpi2_cnfg.h
drivers/scsi/mpt2sas/mpi/mpi2_history.txt [new file with mode: 0644]
drivers/scsi/mpt2sas/mpi/mpi2_init.h
drivers/scsi/mpt2sas/mpi/mpi2_ioc.h
drivers/scsi/mpt2sas/mpi/mpi2_tool.h
drivers/scsi/mpt2sas/mpt2sas_base.c
drivers/scsi/mpt2sas/mpt2sas_base.h
drivers/scsi/mpt2sas/mpt2sas_config.c
drivers/scsi/mpt2sas/mpt2sas_ctl.c
drivers/scsi/mpt2sas/mpt2sas_ctl.h
drivers/scsi/mpt2sas/mpt2sas_debug.h
drivers/scsi/mpt2sas/mpt2sas_scsih.c
drivers/scsi/mpt2sas/mpt2sas_transport.c
drivers/scsi/mvsas/mv_defs.h
drivers/scsi/mvsas/mv_init.c
drivers/scsi/pmcraid.c
drivers/scsi/qla2xxx/qla_mid.c
drivers/scsi/scsi.c
drivers/scsi/scsi_debug.c
drivers/scsi/scsi_error.c
drivers/scsi/scsi_transport_fc.c
drivers/scsi/sd.c
drivers/scsi/sd.h
drivers/scsi/sd_dif.c
drivers/scsi/sg.c
drivers/scsi/sr.c
drivers/scsi/st.c
include/scsi/libiscsi.h
include/scsi/scsi.h
include/scsi/scsi_cmnd.h
include/scsi/scsi_host.h

index a6eb4add1be6d2b7dc1b553853fd04d3d2189b5b..9605179711f4db78f5f99c0d75296860c9c3e0e3 100644 (file)
@@ -3,6 +3,25 @@ HIGHPOINT ROCKETRAID 3xxx/4xxx ADAPTER DRIVER (hptiop)
 Controller Register Map
 -------------------------
 
+For RR44xx Intel IOP based adapters, the controller IOP is accessed via PCI BAR0 and BAR2:
+
+     BAR0 offset    Register
+            0x11C5C Link Interface IRQ Set
+            0x11C60 Link Interface IRQ Clear
+
+     BAR2 offset    Register
+            0x10    Inbound Message Register 0
+            0x14    Inbound Message Register 1
+            0x18    Outbound Message Register 0
+            0x1C    Outbound Message Register 1
+            0x20    Inbound Doorbell Register
+            0x24    Inbound Interrupt Status Register
+            0x28    Inbound Interrupt Mask Register
+            0x30    Outbound Interrupt Status Register
+            0x34    Outbound Interrupt Mask Register
+            0x40    Inbound Queue Port
+            0x44    Outbound Queue Port
+
 For Intel IOP based adapters, the controller IOP is accessed via PCI BAR0:
 
      BAR0 offset    Register
@@ -93,7 +112,7 @@ The driver exposes following sysfs attributes:
 
 
 -----------------------------------------------------------------------------
-Copyright (C) 2006-2007 HighPoint Technologies, Inc. All Rights Reserved.
+Copyright (C) 2006-2009 HighPoint Technologies, Inc. All Rights Reserved.
 
   This file is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
index e1da925b38c867d8ec46e0611d48489c6a993e6b..6141bdff35961de1164eefbb7b374349ed9e2721 100644 (file)
@@ -1231,6 +1231,13 @@ L:       netdev@vger.kernel.org
 S:     Supported
 F:     drivers/net/tg3.*
 
+BROCADE BFA FC SCSI DRIVER
+P:      Jing Huang
+M:      huangj@brocade.com
+L:      linux-scsi@vger.kernel.org
+S:      Supported
+F:      drivers/scsi/bfa/
+
 BSG (block layer generic sg v4 driver)
 M:     FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
 L:     linux-scsi@vger.kernel.org
@@ -4646,6 +4653,14 @@ F:       drivers/ata/
 F:     include/linux/ata.h
 F:     include/linux/libata.h
 
+SERVER ENGINES 10Gbps iSCSI - BladeEngine 2 DRIVER
+P:     Jayamohan Kallickal
+M:     jayamohank@serverengines.com
+L:     linux-scsi@vger.kernel.org
+W:     http://www.serverengines.com
+S:     Supported
+F:     drivers/scsi/be2iscsi/
+
 SERVER ENGINES 10Gbps NIC - BladeEngine 2 DRIVER
 M:     Sathya Perla <sathyap@serverengines.com>
 M:     Subbu Seetharaman <subbus@serverengines.com>
index 0ba6ec87629616e946a64aedad68d86a3b6d4010..add9188663ffef816830ee9b4c130205c439fc28 100644 (file)
@@ -426,7 +426,7 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep,
         * because we preallocate so many resources
         */
        cls_session = iscsi_session_setup(&iscsi_iser_transport, shost,
-                                         ISCSI_DEF_XMIT_CMDS_MAX,
+                                         ISCSI_DEF_XMIT_CMDS_MAX, 0,
                                          sizeof(struct iscsi_iser_task),
                                          initial_cmdsn, 0);
        if (!cls_session)
index 1be6bf7e8ce698dc15c1fdb7f07e0d81f6d5d2e4..0f79f3af4f54ce58be2aa43b92a9f2a15d1bdd37 100644 (file)
@@ -80,28 +80,35 @@ int zfcp_reqlist_isempty(struct zfcp_adapter *adapter)
 
 static void __init zfcp_init_device_configure(char *busid, u64 wwpn, u64 lun)
 {
+       struct ccw_device *ccwdev;
        struct zfcp_adapter *adapter;
        struct zfcp_port *port;
        struct zfcp_unit *unit;
 
-       mutex_lock(&zfcp_data.config_mutex);
-       read_lock_irq(&zfcp_data.config_lock);
-       adapter = zfcp_get_adapter_by_busid(busid);
-       if (adapter)
-               zfcp_adapter_get(adapter);
-       read_unlock_irq(&zfcp_data.config_lock);
+       ccwdev = get_ccwdev_by_busid(&zfcp_ccw_driver, busid);
+       if (!ccwdev)
+               return;
+
+       if (ccw_device_set_online(ccwdev))
+               goto out_ccwdev;
 
+       mutex_lock(&zfcp_data.config_mutex);
+       adapter = dev_get_drvdata(&ccwdev->dev);
        if (!adapter)
-               goto out_adapter;
-       port = zfcp_port_enqueue(adapter, wwpn, 0, 0);
-       if (IS_ERR(port))
+               goto out_unlock;
+       zfcp_adapter_get(adapter);
+
+       port = zfcp_get_port_by_wwpn(adapter, wwpn);
+       if (!port)
                goto out_port;
+
+       zfcp_port_get(port);
        unit = zfcp_unit_enqueue(port, lun);
        if (IS_ERR(unit))
                goto out_unit;
        mutex_unlock(&zfcp_data.config_mutex);
-       ccw_device_set_online(adapter->ccw_device);
 
+       zfcp_erp_unit_reopen(unit, 0, "auidc_1", NULL);
        zfcp_erp_wait(adapter);
        flush_work(&unit->scsi_work);
 
@@ -111,8 +118,10 @@ out_unit:
        zfcp_port_put(port);
 out_port:
        zfcp_adapter_put(adapter);
-out_adapter:
+out_unlock:
        mutex_unlock(&zfcp_data.config_mutex);
+out_ccwdev:
+       put_device(&ccwdev->dev);
        return;
 }
 
@@ -593,10 +602,8 @@ void zfcp_adapter_dequeue(struct zfcp_adapter *adapter)
        int retval = 0;
        unsigned long flags;
 
-       cancel_work_sync(&adapter->scan_work);
        cancel_work_sync(&adapter->stat_work);
        zfcp_fc_wka_ports_force_offline(adapter->gs);
-       zfcp_adapter_scsi_unregister(adapter);
        sysfs_remove_group(&adapter->ccw_device->dev.kobj,
                           &zfcp_sysfs_adapter_attrs);
        dev_set_drvdata(&adapter->ccw_device->dev, NULL);
index 0c90f8e71605882266cb644f1dd3fe9825e14ffd..e08339428ecf38eb0e3341289a282c732d2f99c8 100644 (file)
@@ -102,6 +102,14 @@ static void zfcp_ccw_remove(struct ccw_device *ccw_device)
        adapter = dev_get_drvdata(&ccw_device->dev);
        if (!adapter)
                goto out;
+       mutex_unlock(&zfcp_data.config_mutex);
+
+       cancel_work_sync(&adapter->scan_work);
+
+       mutex_lock(&zfcp_data.config_mutex);
+
+       /* this also removes the scsi devices, so call it first */
+       zfcp_adapter_scsi_unregister(adapter);
 
        write_lock_irq(&zfcp_data.config_lock);
        list_for_each_entry_safe(port, p, &adapter->port_list_head, list) {
@@ -117,11 +125,8 @@ static void zfcp_ccw_remove(struct ccw_device *ccw_device)
        write_unlock_irq(&zfcp_data.config_lock);
 
        list_for_each_entry_safe(port, p, &port_remove_lh, list) {
-               list_for_each_entry_safe(unit, u, &unit_remove_lh, list) {
-                       if (unit->device)
-                               scsi_remove_device(unit->device);
+               list_for_each_entry_safe(unit, u, &unit_remove_lh, list)
                        zfcp_unit_dequeue(unit);
-               }
                zfcp_port_dequeue(port);
        }
        wait_event(adapter->remove_wq, atomic_read(&adapter->refcount) == 0);
@@ -192,13 +197,9 @@ static int zfcp_ccw_set_offline(struct ccw_device *ccw_device)
 
        mutex_lock(&zfcp_data.config_mutex);
        adapter = dev_get_drvdata(&ccw_device->dev);
-       if (!adapter)
-               goto out;
-
        zfcp_erp_adapter_shutdown(adapter, 0, "ccsoff1", NULL);
        zfcp_erp_wait(adapter);
        mutex_unlock(&zfcp_data.config_mutex);
-out:
        return 0;
 }
 
@@ -253,13 +254,17 @@ static void zfcp_ccw_shutdown(struct ccw_device *cdev)
 
        mutex_lock(&zfcp_data.config_mutex);
        adapter = dev_get_drvdata(&cdev->dev);
+       if (!adapter)
+               goto out;
+
        zfcp_erp_adapter_shutdown(adapter, 0, "ccshut1", NULL);
        zfcp_erp_wait(adapter);
        zfcp_erp_thread_kill(adapter);
+out:
        mutex_unlock(&zfcp_data.config_mutex);
 }
 
-static struct ccw_driver zfcp_ccw_driver = {
+struct ccw_driver zfcp_ccw_driver = {
        .owner       = THIS_MODULE,
        .name        = "zfcp",
        .ids         = zfcp_ccw_device_id,
@@ -284,20 +289,3 @@ int __init zfcp_ccw_register(void)
 {
        return ccw_driver_register(&zfcp_ccw_driver);
 }
-
-/**
- * zfcp_get_adapter_by_busid - find zfcp_adapter struct
- * @busid: bus id string of zfcp adapter to find
- */
-struct zfcp_adapter *zfcp_get_adapter_by_busid(char *busid)
-{
-       struct ccw_device *ccw_device;
-       struct zfcp_adapter *adapter = NULL;
-
-       ccw_device = get_ccwdev_by_busid(&zfcp_ccw_driver, busid);
-       if (ccw_device) {
-               adapter = dev_get_drvdata(&ccw_device->dev);
-               put_device(&ccw_device->dev);
-       }
-       return adapter;
-}
index 8305c874e86f7e5b2e4ed0f5711ec139b144d51a..ef681dfed0cca4325699368530e6460a74d8d960 100644 (file)
@@ -86,8 +86,23 @@ static int zfcp_cfdc_copy_to_user(void __user  *user_buffer,
 static struct zfcp_adapter *zfcp_cfdc_get_adapter(u32 devno)
 {
        char busid[9];
+       struct ccw_device *ccwdev;
+       struct zfcp_adapter *adapter = NULL;
+
        snprintf(busid, sizeof(busid), "0.0.%04x", devno);
-       return zfcp_get_adapter_by_busid(busid);
+       ccwdev = get_ccwdev_by_busid(&zfcp_ccw_driver, busid);
+       if (!ccwdev)
+               goto out;
+
+       adapter = dev_get_drvdata(&ccwdev->dev);
+       if (!adapter)
+               goto out_put;
+
+       zfcp_adapter_get(adapter);
+out_put:
+       put_device(&ccwdev->dev);
+out:
+       return adapter;
 }
 
 static int zfcp_cfdc_set_fsf(struct zfcp_fsf_cfdc *fsf_cfdc, int command)
index 36935bc0818f262f74db6fd655ed1994a7bca73e..629edec704058ab50a1e519656a376cdf1bfa868 100644 (file)
@@ -28,7 +28,7 @@ extern int zfcp_sg_setup_table(struct scatterlist *, int);
 /* zfcp_ccw.c */
 extern int zfcp_ccw_register(void);
 extern int zfcp_ccw_priv_sch(struct zfcp_adapter *);
-extern struct zfcp_adapter *zfcp_get_adapter_by_busid(char *);
+extern struct ccw_driver zfcp_ccw_driver;
 
 /* zfcp_cfdc.c */
 extern struct miscdevice zfcp_cfdc_misc;
index f09c863dc6bd1f85dba0eebcc2500ed58b93f4cc..38a7e4a6b6394e3b881c131fb63e3b8da9f81225 100644 (file)
@@ -1058,11 +1058,25 @@ static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req,
        bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->queue_req,
                                        SBAL_FLAGS0_TYPE_WRITE_READ,
                                        sg_resp, max_sbals);
+       req->qtcb->bottom.support.resp_buf_length = bytes;
        if (bytes <= 0)
                return -EIO;
 
+       return 0;
+}
+
+static int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req,
+                                struct scatterlist *sg_req,
+                                struct scatterlist *sg_resp,
+                                int max_sbals)
+{
+       int ret;
+
+       ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp, max_sbals);
+       if (ret)
+               return ret;
+
        /* common settings for ct/gs and els requests */
-       req->qtcb->bottom.support.resp_buf_length = bytes;
        req->qtcb->bottom.support.service_class = FSF_CLASS_3;
        req->qtcb->bottom.support.timeout = 2 * R_A_TOV;
        zfcp_fsf_start_timer(req, 2 * R_A_TOV + 10);
@@ -1094,8 +1108,8 @@ int zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool)
        }
 
        req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
-       ret = zfcp_fsf_setup_ct_els_sbals(req, ct->req, ct->resp,
-                                         FSF_MAX_SBALS_PER_REQ);
+       ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp,
+                                   FSF_MAX_SBALS_PER_REQ);
        if (ret)
                goto failed_send;
 
@@ -1192,7 +1206,7 @@ int zfcp_fsf_send_els(struct zfcp_send_els *els)
        }
 
        req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
-       ret = zfcp_fsf_setup_ct_els_sbals(req, els->req, els->resp, 2);
+       ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, 2);
 
        if (ret)
                goto failed_send;
index 82bb3b2d207a08a3d94330114d40ae12d28bf4f7..e11cca4c784cbfd5b359a40db6938e69458dfab1 100644 (file)
@@ -366,6 +366,7 @@ config ISCSI_TCP
 
 source "drivers/scsi/cxgb3i/Kconfig"
 source "drivers/scsi/bnx2i/Kconfig"
+source "drivers/scsi/be2iscsi/Kconfig"
 
 config SGIWD93_SCSI
        tristate "SGI WD93C93 SCSI Driver"
@@ -1827,6 +1828,16 @@ config SCSI_SRP
          To compile this driver as a module, choose M here: the
          module will be called libsrp.
 
+config SCSI_BFA_FC
+       tristate "Brocade BFA Fibre Channel Support"
+       depends on PCI && SCSI
+       select SCSI_FC_ATTRS
+       help
+         This bfa driver supports all Brocade PCIe FC/FCOE host adapters.
+
+         To compile this driver as a module, choose M here. The module will
+         be called bfa.
+
 endif # SCSI_LOWLEVEL
 
 source "drivers/scsi/pcmcia/Kconfig"
index 61a94af3cee731443e31ccdbbeab16b34de9fc66..3ad61db5e3fa52cf1003ab1217f6c66e383da4dc 100644 (file)
@@ -86,6 +86,7 @@ obj-$(CONFIG_SCSI_QLOGIC_1280)        += qla1280.o
 obj-$(CONFIG_SCSI_QLA_FC)      += qla2xxx/
 obj-$(CONFIG_SCSI_QLA_ISCSI)   += qla4xxx/
 obj-$(CONFIG_SCSI_LPFC)                += lpfc/
+obj-$(CONFIG_SCSI_BFA_FC)      += bfa/
 obj-$(CONFIG_SCSI_PAS16)       += pas16.o
 obj-$(CONFIG_SCSI_T128)                += t128.o
 obj-$(CONFIG_SCSI_DMX3191D)    += dmx3191d.o
@@ -130,6 +131,7 @@ obj-$(CONFIG_SCSI_MVSAS)    += mvsas/
 obj-$(CONFIG_PS3_ROM)          += ps3rom.o
 obj-$(CONFIG_SCSI_CXGB3_ISCSI) += libiscsi.o libiscsi_tcp.o cxgb3i/
 obj-$(CONFIG_SCSI_BNX2_ISCSI)  += libiscsi.o bnx2i/
+obj-$(CONFIG_BE2ISCSI)         += libiscsi.o be2iscsi/
 obj-$(CONFIG_SCSI_PMCRAID)     += pmcraid.o
 
 obj-$(CONFIG_ARM)              += arm/
diff --git a/drivers/scsi/be2iscsi/Kconfig b/drivers/scsi/be2iscsi/Kconfig
new file mode 100644 (file)
index 0000000..2952fcd
--- /dev/null
@@ -0,0 +1,8 @@
+config BE2ISCSI
+       tristate "ServerEngines' 10Gbps iSCSI - BladeEngine 2"
+       depends on PCI && SCSI
+       select SCSI_ISCSI_ATTRS
+
+       help
+       This driver implements the iSCSI functionality for ServerEngines'
+       10Gbps Storage adapter - BladeEngine 2.
diff --git a/drivers/scsi/be2iscsi/Makefile b/drivers/scsi/be2iscsi/Makefile
new file mode 100644 (file)
index 0000000..c11f443
--- /dev/null
@@ -0,0 +1,8 @@
+#
+# Makefile to build the iSCSI driver for ServerEngine's BladeEngine.
+#
+#
+
+obj-$(CONFIG_BE2ISCSI) += be2iscsi.o
+
+be2iscsi-y := be_iscsi.o be_main.o be_mgmt.o be_cmds.o
diff --git a/drivers/scsi/be2iscsi/be.h b/drivers/scsi/be2iscsi/be.h
new file mode 100644 (file)
index 0000000..b36020d
--- /dev/null
@@ -0,0 +1,183 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ */
+
+#ifndef BEISCSI_H
+#define BEISCSI_H
+
+#include <linux/pci.h>
+#include <linux/if_vlan.h>
+
+#define FW_VER_LEN 32
+
+struct be_dma_mem {
+       void *va;
+       dma_addr_t dma;
+       u32 size;
+};
+
+struct be_queue_info {
+       struct be_dma_mem dma_mem;
+       u16 len;
+       u16 entry_size;         /* Size of an element in the queue */
+       u16 id;
+       u16 tail, head;
+       bool created;
+       atomic_t used;          /* Number of valid elements in the queue */
+};
+
+static inline u32 MODULO(u16 val, u16 limit)
+{
+       WARN_ON(limit & (limit - 1));
+       return val & (limit - 1);
+}
+
+static inline void index_inc(u16 *index, u16 limit)
+{
+       *index = MODULO((*index + 1), limit);
+}
+
+static inline void *queue_head_node(struct be_queue_info *q)
+{
+       return q->dma_mem.va + q->head * q->entry_size;
+}
+
+static inline void *queue_tail_node(struct be_queue_info *q)
+{
+       return q->dma_mem.va + q->tail * q->entry_size;
+}
+
+static inline void queue_head_inc(struct be_queue_info *q)
+{
+       index_inc(&q->head, q->len);
+}
+
+static inline void queue_tail_inc(struct be_queue_info *q)
+{
+       index_inc(&q->tail, q->len);
+}
+
+/*ISCSI */
+
+struct be_eq_obj {
+       struct be_queue_info q;
+       char desc[32];
+
+       /* Adaptive interrupt coalescing (AIC) info */
+       bool enable_aic;
+       u16 min_eqd;            /* in usecs */
+       u16 max_eqd;            /* in usecs */
+       u16 cur_eqd;            /* in usecs */
+};
+
+struct be_mcc_obj {
+       struct be_queue_info *q;
+       struct be_queue_info *cq;
+};
+
+struct be_ctrl_info {
+       u8 __iomem *csr;
+       u8 __iomem *db;         /* Door Bell */
+       u8 __iomem *pcicfg;     /* PCI config space */
+       struct pci_dev *pdev;
+
+       /* Mbox used for cmd request/response */
+       spinlock_t mbox_lock;   /* For serializing mbox cmds to BE card */
+       struct be_dma_mem mbox_mem;
+       /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
+        * is stored for freeing purpose */
+       struct be_dma_mem mbox_mem_alloced;
+
+       /* MCC Rings */
+       struct be_mcc_obj mcc_obj;
+       spinlock_t mcc_lock;    /* For serializing mcc cmds to BE card */
+       spinlock_t mcc_cq_lock;
+
+       /* MCC Async callback */
+       void (*async_cb) (void *adapter, bool link_up);
+       void *adapter_ctxt;
+};
+
+#include "be_cmds.h"
+
+#define PAGE_SHIFT_4K 12
+#define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
+
+/* Returns number of pages spanned by the data starting at the given addr */
+#define PAGES_4K_SPANNED(_address, size)                               \
+               ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) +     \
+                       (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
+
+/* Byte offset into the page corresponding to given address */
+#define OFFSET_IN_PAGE(addr)                                           \
+               ((size_t)(addr) & (PAGE_SIZE_4K-1))
+
+/* Returns bit offset within a DWORD of a bitfield */
+#define AMAP_BIT_OFFSET(_struct, field)                                \
+               (((size_t)&(((_struct *)0)->field))%32)
+
+/* Returns the bit mask of the field that is NOT shifted into location. */
+static inline u32 amap_mask(u32 bitsize)
+{
+       return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
+}
+
+static inline void amap_set(void *ptr, u32 dw_offset, u32 mask,
+                                       u32 offset, u32 value)
+{
+       u32 *dw = (u32 *) ptr + dw_offset;
+       *dw &= ~(mask << offset);
+       *dw |= (mask & value) << offset;
+}
+
+#define AMAP_SET_BITS(_struct, field, ptr, val)                                \
+               amap_set(ptr,                                           \
+                       offsetof(_struct, field)/32,                    \
+                       amap_mask(sizeof(((_struct *)0)->field)),       \
+                       AMAP_BIT_OFFSET(_struct, field),                \
+                       val)
+
+static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
+{
+       u32 *dw = ptr;
+       return mask & (*(dw + dw_offset) >> offset);
+}
+
+#define AMAP_GET_BITS(_struct, field, ptr)                             \
+               amap_get(ptr,                                           \
+                       offsetof(_struct, field)/32,                    \
+                       amap_mask(sizeof(((_struct *)0)->field)),       \
+                       AMAP_BIT_OFFSET(_struct, field))
+
+#define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
+#define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
+static inline void swap_dws(void *wrb, int len)
+{
+#ifdef __BIG_ENDIAN
+       u32 *dw = wrb;
+       WARN_ON(len % 4);
+       do {
+               *dw = cpu_to_le32(*dw);
+               dw++;
+               len -= 4;
+       } while (len);
+#endif /* __BIG_ENDIAN */
+}
+
+extern void beiscsi_cq_notify(struct be_ctrl_info *ctrl, u16 qid, bool arm,
+                             u16 num_popped);
+
+#endif /* BEISCSI_H */
diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
new file mode 100644 (file)
index 0000000..08007b6
--- /dev/null
@@ -0,0 +1,523 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ */
+
+#include "be.h"
+#include "be_mgmt.h"
+#include "be_main.h"
+
+static inline bool be_mcc_compl_is_new(struct be_mcc_compl *compl)
+{
+       if (compl->flags != 0) {
+               compl->flags = le32_to_cpu(compl->flags);
+               WARN_ON((compl->flags & CQE_FLAGS_VALID_MASK) == 0);
+               return true;
+       } else
+               return false;
+}
+
+static inline void be_mcc_compl_use(struct be_mcc_compl *compl)
+{
+       compl->flags = 0;
+}
+
+static int be_mcc_compl_process(struct be_ctrl_info *ctrl,
+                               struct be_mcc_compl *compl)
+{
+       u16 compl_status, extd_status;
+
+       be_dws_le_to_cpu(compl, 4);
+
+       compl_status = (compl->status >> CQE_STATUS_COMPL_SHIFT) &
+                                       CQE_STATUS_COMPL_MASK;
+       if (compl_status != MCC_STATUS_SUCCESS) {
+               extd_status = (compl->status >> CQE_STATUS_EXTD_SHIFT) &
+                                               CQE_STATUS_EXTD_MASK;
+               dev_err(&ctrl->pdev->dev,
+                       "error in cmd completion: status(compl/extd)=%d/%d\n",
+                       compl_status, extd_status);
+               return -1;
+       }
+       return 0;
+}
+
+static inline bool is_link_state_evt(u32 trailer)
+{
+       return (((trailer >> ASYNC_TRAILER_EVENT_CODE_SHIFT) &
+               ASYNC_TRAILER_EVENT_CODE_MASK) == ASYNC_EVENT_CODE_LINK_STATE);
+}
+
+void beiscsi_cq_notify(struct be_ctrl_info *ctrl, u16 qid, bool arm,
+                      u16 num_popped)
+{
+       u32 val = 0;
+       val |= qid & DB_CQ_RING_ID_MASK;
+       if (arm)
+               val |= 1 << DB_CQ_REARM_SHIFT;
+       val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
+       iowrite32(val, ctrl->db + DB_CQ_OFFSET);
+}
+
+static int be_mbox_db_ready_wait(struct be_ctrl_info *ctrl)
+{
+#define long_delay 2000
+       void __iomem *db = ctrl->db + MPU_MAILBOX_DB_OFFSET;
+       int cnt = 0, wait = 5;  /* in usecs */
+       u32 ready;
+
+       do {
+               ready = ioread32(db) & MPU_MAILBOX_DB_RDY_MASK;
+               if (ready)
+                       break;
+
+               if (cnt > 6000000) {
+                       dev_err(&ctrl->pdev->dev, "mbox_db poll timed out\n");
+                       return -1;
+               }
+
+               if (cnt > 50) {
+                       wait = long_delay;
+                       mdelay(long_delay / 1000);
+               } else
+                       udelay(wait);
+               cnt += wait;
+       } while (true);
+       return 0;
+}
+
+int be_mbox_notify(struct be_ctrl_info *ctrl)
+{
+       int status;
+       u32 val = 0;
+       void __iomem *db = ctrl->db + MPU_MAILBOX_DB_OFFSET;
+       struct be_dma_mem *mbox_mem = &ctrl->mbox_mem;
+       struct be_mcc_mailbox *mbox = mbox_mem->va;
+       struct be_mcc_compl *compl = &mbox->compl;
+
+       val &= ~MPU_MAILBOX_DB_RDY_MASK;
+       val |= MPU_MAILBOX_DB_HI_MASK;
+       val |= (upper_32_bits(mbox_mem->dma) >> 2) << 2;
+       iowrite32(val, db);
+
+       status = be_mbox_db_ready_wait(ctrl);
+       if (status != 0) {
+               SE_DEBUG(DBG_LVL_1, " be_mbox_db_ready_wait failed 1\n");
+               return status;
+       }
+       val = 0;
+       val &= ~MPU_MAILBOX_DB_RDY_MASK;
+       val &= ~MPU_MAILBOX_DB_HI_MASK;
+       val |= (u32) (mbox_mem->dma >> 4) << 2;
+       iowrite32(val, db);
+
+       status = be_mbox_db_ready_wait(ctrl);
+       if (status != 0) {
+               SE_DEBUG(DBG_LVL_1, " be_mbox_db_ready_wait failed 2\n");
+               return status;
+       }
+       if (be_mcc_compl_is_new(compl)) {
+               status = be_mcc_compl_process(ctrl, &mbox->compl);
+               be_mcc_compl_use(compl);
+               if (status) {
+                       SE_DEBUG(DBG_LVL_1, "After be_mcc_compl_process \n");
+                       return status;
+               }
+       } else {
+               dev_err(&ctrl->pdev->dev, "invalid mailbox completion\n");
+               return -1;
+       }
+       return 0;
+}
+
+void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, int payload_len,
+                               bool embedded, u8 sge_cnt)
+{
+       if (embedded)
+               wrb->embedded |= MCC_WRB_EMBEDDED_MASK;
+       else
+               wrb->embedded |= (sge_cnt & MCC_WRB_SGE_CNT_MASK) <<
+                                               MCC_WRB_SGE_CNT_SHIFT;
+       wrb->payload_length = payload_len;
+       be_dws_cpu_to_le(wrb, 8);
+}
+
+void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr,
+                       u8 subsystem, u8 opcode, int cmd_len)
+{
+       req_hdr->opcode = opcode;
+       req_hdr->subsystem = subsystem;
+       req_hdr->request_length = cpu_to_le32(cmd_len - sizeof(*req_hdr));
+}
+
+static void be_cmd_page_addrs_prepare(struct phys_addr *pages, u32 max_pages,
+                                                       struct be_dma_mem *mem)
+{
+       int i, buf_pages;
+       u64 dma = (u64) mem->dma;
+
+       buf_pages = min(PAGES_4K_SPANNED(mem->va, mem->size), max_pages);
+       for (i = 0; i < buf_pages; i++) {
+               pages[i].lo = cpu_to_le32(dma & 0xFFFFFFFF);
+               pages[i].hi = cpu_to_le32(upper_32_bits(dma));
+               dma += PAGE_SIZE_4K;
+       }
+}
+
+static u32 eq_delay_to_mult(u32 usec_delay)
+{
+#define MAX_INTR_RATE 651042
+       const u32 round = 10;
+       u32 multiplier;
+
+       if (usec_delay == 0)
+               multiplier = 0;
+       else {
+               u32 interrupt_rate = 1000000 / usec_delay;
+               if (interrupt_rate == 0)
+                       multiplier = 1023;
+               else {
+                       multiplier = (MAX_INTR_RATE - interrupt_rate) * round;
+                       multiplier /= interrupt_rate;
+                       multiplier = (multiplier + round / 2) / round;
+                       multiplier = min(multiplier, (u32) 1023);
+               }
+       }
+       return multiplier;
+}
+
+struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem)
+{
+       return &((struct be_mcc_mailbox *)(mbox_mem->va))->wrb;
+}
+
+int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
+                         struct be_queue_info *eq, int eq_delay)
+{
+       struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+       struct be_cmd_req_eq_create *req = embedded_payload(wrb);
+       struct be_cmd_resp_eq_create *resp = embedded_payload(wrb);
+       struct be_dma_mem *q_mem = &eq->dma_mem;
+       int status;
+
+       spin_lock(&ctrl->mbox_lock);
+       memset(wrb, 0, sizeof(*wrb));
+
+       be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+       be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+                       OPCODE_COMMON_EQ_CREATE, sizeof(*req));
+
+       req->num_pages = cpu_to_le16(PAGES_4K_SPANNED(q_mem->va, q_mem->size));
+
+       AMAP_SET_BITS(struct amap_eq_context, func, req->context,
+                                               PCI_FUNC(ctrl->pdev->devfn));
+       AMAP_SET_BITS(struct amap_eq_context, valid, req->context, 1);
+       AMAP_SET_BITS(struct amap_eq_context, size, req->context, 0);
+       AMAP_SET_BITS(struct amap_eq_context, count, req->context,
+                                       __ilog2_u32(eq->len / 256));
+       AMAP_SET_BITS(struct amap_eq_context, delaymult, req->context,
+                                       eq_delay_to_mult(eq_delay));
+       be_dws_cpu_to_le(req->context, sizeof(req->context));
+
+       be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+       status = be_mbox_notify(ctrl);
+       if (!status) {
+               eq->id = le16_to_cpu(resp->eq_id);
+               eq->created = true;
+       }
+       spin_unlock(&ctrl->mbox_lock);
+       return status;
+}
+
+int be_cmd_fw_initialize(struct be_ctrl_info *ctrl)
+{
+       struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+       int status;
+       u8 *endian_check;
+
+       spin_lock(&ctrl->mbox_lock);
+       memset(wrb, 0, sizeof(*wrb));
+
+       endian_check = (u8 *) wrb;
+       *endian_check++ = 0xFF;
+       *endian_check++ = 0x12;
+       *endian_check++ = 0x34;
+       *endian_check++ = 0xFF;
+       *endian_check++ = 0xFF;
+       *endian_check++ = 0x56;
+       *endian_check++ = 0x78;
+       *endian_check++ = 0xFF;
+       be_dws_cpu_to_le(wrb, sizeof(*wrb));
+
+       status = be_mbox_notify(ctrl);
+       if (status)
+               SE_DEBUG(DBG_LVL_1, "be_cmd_fw_initialize Failed \n");
+
+       spin_unlock(&ctrl->mbox_lock);
+       return status;
+}
+
+int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
+                         struct be_queue_info *cq, struct be_queue_info *eq,
+                         bool sol_evts, bool no_delay, int coalesce_wm)
+{
+       struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+       struct be_cmd_req_cq_create *req = embedded_payload(wrb);
+       struct be_cmd_resp_cq_create *resp = embedded_payload(wrb);
+       struct be_dma_mem *q_mem = &cq->dma_mem;
+       void *ctxt = &req->context;
+       int status;
+
+       spin_lock(&ctrl->mbox_lock);
+       memset(wrb, 0, sizeof(*wrb));
+
+       be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+       be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+                       OPCODE_COMMON_CQ_CREATE, sizeof(*req));
+
+       if (!q_mem->va)
+               SE_DEBUG(DBG_LVL_1, "uninitialized q_mem->va\n");
+
+       req->num_pages = cpu_to_le16(PAGES_4K_SPANNED(q_mem->va, q_mem->size));
+
+       AMAP_SET_BITS(struct amap_cq_context, coalescwm, ctxt, coalesce_wm);
+       AMAP_SET_BITS(struct amap_cq_context, nodelay, ctxt, no_delay);
+       AMAP_SET_BITS(struct amap_cq_context, count, ctxt,
+                     __ilog2_u32(cq->len / 256));
+       AMAP_SET_BITS(struct amap_cq_context, valid, ctxt, 1);
+       AMAP_SET_BITS(struct amap_cq_context, solevent, ctxt, sol_evts);
+       AMAP_SET_BITS(struct amap_cq_context, eventable, ctxt, 1);
+       AMAP_SET_BITS(struct amap_cq_context, eqid, ctxt, eq->id);
+       AMAP_SET_BITS(struct amap_cq_context, armed, ctxt, 1);
+       AMAP_SET_BITS(struct amap_cq_context, func, ctxt,
+                     PCI_FUNC(ctrl->pdev->devfn));
+       be_dws_cpu_to_le(ctxt, sizeof(req->context));
+
+       be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+       status = be_mbox_notify(ctrl);
+       if (!status) {
+               cq->id = le16_to_cpu(resp->cq_id);
+               cq->created = true;
+       } else
+               SE_DEBUG(DBG_LVL_1, "In be_cmd_cq_create, status=ox%08x \n",
+                       status);
+       spin_unlock(&ctrl->mbox_lock);
+
+       return status;
+}
+
+static u32 be_encoded_q_len(int q_len)
+{
+       u32 len_encoded = fls(q_len);   /* log2(len) + 1 */
+       if (len_encoded == 16)
+               len_encoded = 0;
+       return len_encoded;
+}
+int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
+                         int queue_type)
+{
+       struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+       struct be_cmd_req_q_destroy *req = embedded_payload(wrb);
+       u8 subsys = 0, opcode = 0;
+       int status;
+
+       spin_lock(&ctrl->mbox_lock);
+       memset(wrb, 0, sizeof(*wrb));
+       be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+       switch (queue_type) {
+       case QTYPE_EQ:
+               subsys = CMD_SUBSYSTEM_COMMON;
+               opcode = OPCODE_COMMON_EQ_DESTROY;
+               break;
+       case QTYPE_CQ:
+               subsys = CMD_SUBSYSTEM_COMMON;
+               opcode = OPCODE_COMMON_CQ_DESTROY;
+               break;
+       case QTYPE_WRBQ:
+               subsys = CMD_SUBSYSTEM_ISCSI;
+               opcode = OPCODE_COMMON_ISCSI_WRBQ_DESTROY;
+               break;
+       case QTYPE_DPDUQ:
+               subsys = CMD_SUBSYSTEM_ISCSI;
+               opcode = OPCODE_COMMON_ISCSI_DEFQ_DESTROY;
+               break;
+       case QTYPE_SGL:
+               subsys = CMD_SUBSYSTEM_ISCSI;
+               opcode = OPCODE_COMMON_ISCSI_CFG_REMOVE_SGL_PAGES;
+               break;
+       default:
+               spin_unlock(&ctrl->mbox_lock);
+               BUG();
+               return -1;
+       }
+       be_cmd_hdr_prepare(&req->hdr, subsys, opcode, sizeof(*req));
+       if (queue_type != QTYPE_SGL)
+               req->id = cpu_to_le16(q->id);
+
+       status = be_mbox_notify(ctrl);
+
+       spin_unlock(&ctrl->mbox_lock);
+       return status;
+}
+
+int be_cmd_get_mac_addr(struct be_ctrl_info *ctrl, u8 *mac_addr)
+{
+       struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+       struct be_cmd_req_get_mac_addr *req = embedded_payload(wrb);
+       int status;
+
+       spin_lock(&ctrl->mbox_lock);
+       memset(wrb, 0, sizeof(*wrb));
+       be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+       be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+                          OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG,
+                          sizeof(*req));
+
+       status = be_mbox_notify(ctrl);
+       if (!status) {
+               struct be_cmd_resp_get_mac_addr *resp = embedded_payload(wrb);
+
+               memcpy(mac_addr, resp->mac_address, ETH_ALEN);
+       }
+
+       spin_unlock(&ctrl->mbox_lock);
+       return status;
+}
+
+int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
+                                   struct be_queue_info *cq,
+                                   struct be_queue_info *dq, int length,
+                                   int entry_size)
+{
+       struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+       struct be_defq_create_req *req = embedded_payload(wrb);
+       struct be_dma_mem *q_mem = &dq->dma_mem;
+       void *ctxt = &req->context;
+       int status;
+
+       spin_lock(&ctrl->mbox_lock);
+       memset(wrb, 0, sizeof(*wrb));
+
+       be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+       be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+                          OPCODE_COMMON_ISCSI_DEFQ_CREATE, sizeof(*req));
+
+       req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
+       AMAP_SET_BITS(struct amap_be_default_pdu_context, rx_pdid, ctxt, 0);
+       AMAP_SET_BITS(struct amap_be_default_pdu_context, rx_pdid_valid, ctxt,
+                     1);
+       AMAP_SET_BITS(struct amap_be_default_pdu_context, pci_func_id, ctxt,
+                     PCI_FUNC(ctrl->pdev->devfn));
+       AMAP_SET_BITS(struct amap_be_default_pdu_context, ring_size, ctxt,
+                     be_encoded_q_len(length / sizeof(struct phys_addr)));
+       AMAP_SET_BITS(struct amap_be_default_pdu_context, default_buffer_size,
+                     ctxt, entry_size);
+       AMAP_SET_BITS(struct amap_be_default_pdu_context, cq_id_recv, ctxt,
+                     cq->id);
+
+       be_dws_cpu_to_le(ctxt, sizeof(req->context));
+
+       be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+       status = be_mbox_notify(ctrl);
+       if (!status) {
+               struct be_defq_create_resp *resp = embedded_payload(wrb);
+
+               dq->id = le16_to_cpu(resp->id);
+               dq->created = true;
+       }
+       spin_unlock(&ctrl->mbox_lock);
+
+       return status;
+}
+
+int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
+                      struct be_queue_info *wrbq)
+{
+       struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+       struct be_wrbq_create_req *req = embedded_payload(wrb);
+       struct be_wrbq_create_resp *resp = embedded_payload(wrb);
+       int status;
+
+       spin_lock(&ctrl->mbox_lock);
+       memset(wrb, 0, sizeof(*wrb));
+
+       be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+       be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+               OPCODE_COMMON_ISCSI_WRBQ_CREATE, sizeof(*req));
+       req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
+       be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+       status = be_mbox_notify(ctrl);
+       if (!status)
+               wrbq->id = le16_to_cpu(resp->cid);
+       spin_unlock(&ctrl->mbox_lock);
+       return status;
+}
+
+int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
+                               struct be_dma_mem *q_mem,
+                               u32 page_offset, u32 num_pages)
+{
+       struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+       struct be_post_sgl_pages_req *req = embedded_payload(wrb);
+       int status;
+       unsigned int curr_pages;
+       u32 internal_page_offset = 0;
+       u32 temp_num_pages = num_pages;
+
+       if (num_pages == 0xff)
+               num_pages = 1;
+
+       spin_lock(&ctrl->mbox_lock);
+       do {
+               memset(wrb, 0, sizeof(*wrb));
+               be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+               be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+                                  OPCODE_COMMON_ISCSI_CFG_POST_SGL_PAGES,
+                                  sizeof(*req));
+               curr_pages = BE_NUMBER_OF_FIELD(struct be_post_sgl_pages_req,
+                                               pages);
+               req->num_pages = min(num_pages, curr_pages);
+               req->page_offset = page_offset;
+               be_cmd_page_addrs_prepare(req->pages, req->num_pages, q_mem);
+               q_mem->dma = q_mem->dma + (req->num_pages * PAGE_SIZE);
+               internal_page_offset += req->num_pages;
+               page_offset += req->num_pages;
+               num_pages -= req->num_pages;
+
+               if (temp_num_pages == 0xff)
+                       req->num_pages = temp_num_pages;
+
+               status = be_mbox_notify(ctrl);
+               if (status) {
+                       SE_DEBUG(DBG_LVL_1,
+                                "FW CMD to map iscsi frags failed.\n");
+                       goto error;
+               }
+       } while (num_pages > 0);
+error:
+       spin_unlock(&ctrl->mbox_lock);
+       if (status != 0)
+               beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
+       return status;
+}
diff --git a/drivers/scsi/be2iscsi/be_cmds.h b/drivers/scsi/be2iscsi/be_cmds.h
new file mode 100644 (file)
index 0000000..c20d686
--- /dev/null
@@ -0,0 +1,877 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ */
+
+#ifndef BEISCSI_CMDS_H
+#define BEISCSI_CMDS_H
+
+/**
+ * The driver sends configuration and managements command requests to the
+ * firmware in the BE. These requests are communicated to the processor
+ * using Work Request Blocks (WRBs) submitted to the MCC-WRB ring or via one
+ * WRB inside a MAILBOX.
+ * The commands are serviced by the ARM processor in the BladeEngine's MPU.
+ */
+struct be_sge {
+       u32 pa_lo;
+       u32 pa_hi;
+       u32 len;
+};
+
+#define MCC_WRB_SGE_CNT_SHIFT 3        /* bits 3 - 7 of dword 0 */
+#define MCC_WRB_SGE_CNT_MASK 0x1F      /* bits 3 - 7 of dword 0 */
+struct be_mcc_wrb {
+       u32 embedded;           /* dword 0 */
+       u32 payload_length;     /* dword 1 */
+       u32 tag0;               /* dword 2 */
+       u32 tag1;               /* dword 3 */
+       u32 rsvd;               /* dword 4 */
+       union {
+               u8 embedded_payload[236];       /* used by embedded cmds */
+               struct be_sge sgl[19];  /* used by non-embedded cmds */
+       } payload;
+};
+
+#define CQE_FLAGS_VALID_MASK (1 << 31)
+#define CQE_FLAGS_ASYNC_MASK (1 << 30)
+
+/* Completion Status */
+#define MCC_STATUS_SUCCESS 0x0
+
+#define CQE_STATUS_COMPL_MASK 0xFFFF
+#define CQE_STATUS_COMPL_SHIFT 0       /* bits 0 - 15 */
+#define CQE_STATUS_EXTD_MASK 0xFFFF
+#define CQE_STATUS_EXTD_SHIFT 0                /* bits 0 - 15 */
+
+struct be_mcc_compl {
+       u32 status;             /* dword 0 */
+       u32 tag0;               /* dword 1 */
+       u32 tag1;               /* dword 2 */
+       u32 flags;              /* dword 3 */
+};
+
+/********* Mailbox door bell *************/
+/**
+ * Used for driver communication with the FW.
+ * The software must write this register twice to post any command. First,
+ * it writes the register with hi=1 and the upper bits of the physical address
+ * for the MAILBOX structure. Software must poll the ready bit until this
+ * is acknowledged. Then, sotware writes the register with hi=0 with the lower
+ * bits in the address. It must poll the ready bit until the command is
+ * complete. Upon completion, the MAILBOX will contain a valid completion
+ * queue entry.
+ */
+#define MPU_MAILBOX_DB_OFFSET  0x160
+#define MPU_MAILBOX_DB_RDY_MASK        0x1     /* bit 0 */
+#define MPU_MAILBOX_DB_HI_MASK 0x2     /* bit 1 */
+
+/********** MPU semphore ******************/
+#define MPU_EP_SEMAPHORE_OFFSET 0xac
+#define EP_SEMAPHORE_POST_STAGE_MASK 0x0000FFFF
+#define EP_SEMAPHORE_POST_ERR_MASK 0x1
+#define EP_SEMAPHORE_POST_ERR_SHIFT 31
+
+/********** MCC door bell ************/
+#define DB_MCCQ_OFFSET 0x140
+#define DB_MCCQ_RING_ID_MASK 0x7FF             /* bits 0 - 10 */
+/* Number of entries posted */
+#define DB_MCCQ_NUM_POSTED_SHIFT 16            /* bits 16 - 29 */
+
+/* MPU semphore POST stage values */
+#define POST_STAGE_ARMFW_RDY           0xc000  /* FW is done with POST */
+
+/**
+ * When the async bit of mcc_compl is set, the last 4 bytes of
+ * mcc_compl is interpreted as follows:
+ */
+#define ASYNC_TRAILER_EVENT_CODE_SHIFT 8       /* bits 8 - 15 */
+#define ASYNC_TRAILER_EVENT_CODE_MASK  0xFF
+#define ASYNC_EVENT_CODE_LINK_STATE    0x1
+struct be_async_event_trailer {
+       u32 code;
+};
+
+enum {
+       ASYNC_EVENT_LINK_DOWN = 0x0,
+       ASYNC_EVENT_LINK_UP = 0x1
+};
+
+/**
+ * When the event code of an async trailer is link-state, the mcc_compl
+ * must be interpreted as follows
+ */
+struct be_async_event_link_state {
+       u8 physical_port;
+       u8 port_link_status;
+       u8 port_duplex;
+       u8 port_speed;
+       u8 port_fault;
+       u8 rsvd0[7];
+       struct be_async_event_trailer trailer;
+} __packed;
+
+struct be_mcc_mailbox {
+       struct be_mcc_wrb wrb;
+       struct be_mcc_compl compl;
+};
+
+/* Type of subsystems supported by FW */
+#define CMD_SUBSYSTEM_COMMON    0x1
+#define CMD_SUBSYSTEM_ISCSI     0x2
+#define CMD_SUBSYSTEM_ETH       0x3
+#define CMD_SUBSYSTEM_ISCSI_INI 0x6
+#define CMD_COMMON_TCP_UPLOAD   0x1
+
+/**
+ * List of common opcodes subsystem  CMD_SUBSYSTEM_COMMON
+ * These opcodes are unique for each subsystem defined above
+ */
+#define OPCODE_COMMON_CQ_CREATE                                12
+#define OPCODE_COMMON_EQ_CREATE                                13
+#define OPCODE_COMMON_MCC_CREATE                       21
+#define OPCODE_COMMON_GET_CNTL_ATTRIBUTES               32
+#define OPCODE_COMMON_GET_FW_VERSION                   35
+#define OPCODE_COMMON_MODIFY_EQ_DELAY                  41
+#define OPCODE_COMMON_FIRMWARE_CONFIG                  42
+#define OPCODE_COMMON_MCC_DESTROY                      53
+#define OPCODE_COMMON_CQ_DESTROY                       54
+#define OPCODE_COMMON_EQ_DESTROY                       55
+#define OPCODE_COMMON_QUERY_FIRMWARE_CONFIG            58
+#define OPCODE_COMMON_FUNCTION_RESET                   61
+
+/**
+ * LIST of opcodes that are common between Initiator and Target
+ * used by CMD_SUBSYSTEM_ISCSI
+ * These opcodes are unique for each subsystem defined above
+ */
+#define OPCODE_COMMON_ISCSI_CFG_POST_SGL_PAGES         2
+#define OPCODE_COMMON_ISCSI_CFG_REMOVE_SGL_PAGES        3
+#define OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG                7
+#define OPCODE_COMMON_ISCSI_SET_FRAGNUM_BITS_FOR_SGL_CRA 61
+#define OPCODE_COMMON_ISCSI_DEFQ_CREATE                 64
+#define OPCODE_COMMON_ISCSI_DEFQ_DESTROY               65
+#define OPCODE_COMMON_ISCSI_WRBQ_CREATE                        66
+#define OPCODE_COMMON_ISCSI_WRBQ_DESTROY               67
+
+struct be_cmd_req_hdr {
+       u8 opcode;              /* dword 0 */
+       u8 subsystem;           /* dword 0 */
+       u8 port_number;         /* dword 0 */
+       u8 domain;              /* dword 0 */
+       u32 timeout;            /* dword 1 */
+       u32 request_length;     /* dword 2 */
+       u32 rsvd;               /* dword 3 */
+};
+
+struct be_cmd_resp_hdr {
+       u32 info;               /* dword 0 */
+       u32 status;             /* dword 1 */
+       u32 response_length;    /* dword 2 */
+       u32 actual_resp_len;    /* dword 3 */
+};
+
+struct phys_addr {
+       u32 lo;
+       u32 hi;
+};
+
+/**************************
+ * BE Command definitions *
+ **************************/
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte - used to calculate offset/shift/mask of each field
+ */
+struct amap_eq_context {
+       u8 cidx[13];            /* dword 0 */
+       u8 rsvd0[3];            /* dword 0 */
+       u8 epidx[13];           /* dword 0 */
+       u8 valid;               /* dword 0 */
+       u8 rsvd1;               /* dword 0 */
+       u8 size;                /* dword 0 */
+       u8 pidx[13];            /* dword 1 */
+       u8 rsvd2[3];            /* dword 1 */
+       u8 pd[10];              /* dword 1 */
+       u8 count[3];            /* dword 1 */
+       u8 solevent;            /* dword 1 */
+       u8 stalled;             /* dword 1 */
+       u8 armed;               /* dword 1 */
+       u8 rsvd3[4];            /* dword 2 */
+       u8 func[8];             /* dword 2 */
+       u8 rsvd4;               /* dword 2 */
+       u8 delaymult[10];       /* dword 2 */
+       u8 rsvd5[2];            /* dword 2 */
+       u8 phase[2];            /* dword 2 */
+       u8 nodelay;             /* dword 2 */
+       u8 rsvd6[4];            /* dword 2 */
+       u8 rsvd7[32];           /* dword 3 */
+} __packed;
+
+struct be_cmd_req_eq_create {
+       struct be_cmd_req_hdr hdr;      /* dw[4] */
+       u16 num_pages;          /* sword */
+       u16 rsvd0;              /* sword */
+       u8 context[sizeof(struct amap_eq_context) / 8]; /* dw[4] */
+       struct phys_addr pages[8];
+} __packed;
+
+struct be_cmd_resp_eq_create {
+       struct be_cmd_resp_hdr resp_hdr;
+       u16 eq_id;              /* sword */
+       u16 rsvd0;              /* sword */
+} __packed;
+
+struct mac_addr {
+       u16 size_of_struct;
+       u8 addr[ETH_ALEN];
+} __packed;
+
+struct be_cmd_req_mac_query {
+       struct be_cmd_req_hdr hdr;
+       u8 type;
+       u8 permanent;
+       u16 if_id;
+} __packed;
+
+struct be_cmd_resp_mac_query {
+       struct be_cmd_resp_hdr hdr;
+       struct mac_addr mac;
+};
+
+/******************** Create CQ ***************************/
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte - used to calculate offset/shift/mask of each field
+ */
+struct amap_cq_context {
+       u8 cidx[11];            /* dword 0 */
+       u8 rsvd0;               /* dword 0 */
+       u8 coalescwm[2];        /* dword 0 */
+       u8 nodelay;             /* dword 0 */
+       u8 epidx[11];           /* dword 0 */
+       u8 rsvd1;               /* dword 0 */
+       u8 count[2];            /* dword 0 */
+       u8 valid;               /* dword 0 */
+       u8 solevent;            /* dword 0 */
+       u8 eventable;           /* dword 0 */
+       u8 pidx[11];            /* dword 1 */
+       u8 rsvd2;               /* dword 1 */
+       u8 pd[10];              /* dword 1 */
+       u8 eqid[8];             /* dword 1 */
+       u8 stalled;             /* dword 1 */
+       u8 armed;               /* dword 1 */
+       u8 rsvd3[4];            /* dword 2 */
+       u8 func[8];             /* dword 2 */
+       u8 rsvd4[20];           /* dword 2 */
+       u8 rsvd5[32];           /* dword 3 */
+} __packed;
+
+struct be_cmd_req_cq_create {
+       struct be_cmd_req_hdr hdr;
+       u16 num_pages;
+       u16 rsvd0;
+       u8 context[sizeof(struct amap_cq_context) / 8];
+       struct phys_addr pages[4];
+} __packed;
+
+struct be_cmd_resp_cq_create {
+       struct be_cmd_resp_hdr hdr;
+       u16 cq_id;
+       u16 rsvd0;
+} __packed;
+
+/******************** Create MCCQ ***************************/
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte - used to calculate offset/shift/mask of each field
+ */
+struct amap_mcc_context {
+       u8 con_index[14];
+       u8 rsvd0[2];
+       u8 ring_size[4];
+       u8 fetch_wrb;
+       u8 fetch_r2t;
+       u8 cq_id[10];
+       u8 prod_index[14];
+       u8 fid[8];
+       u8 pdid[9];
+       u8 valid;
+       u8 rsvd1[32];
+       u8 rsvd2[32];
+} __packed;
+
+struct be_cmd_req_mcc_create {
+       struct be_cmd_req_hdr hdr;
+       u16 num_pages;
+       u16 rsvd0;
+       u8 context[sizeof(struct amap_mcc_context) / 8];
+       struct phys_addr pages[8];
+} __packed;
+
+struct be_cmd_resp_mcc_create {
+       struct be_cmd_resp_hdr hdr;
+       u16 id;
+       u16 rsvd0;
+} __packed;
+
+/******************** Q Destroy  ***************************/
+/* Type of Queue to be destroyed */
+enum {
+       QTYPE_EQ = 1,
+       QTYPE_CQ,
+       QTYPE_MCCQ,
+       QTYPE_WRBQ,
+       QTYPE_DPDUQ,
+       QTYPE_SGL
+};
+
+struct be_cmd_req_q_destroy {
+       struct be_cmd_req_hdr hdr;
+       u16 id;
+       u16 bypass_flush;       /* valid only for rx q destroy */
+} __packed;
+
+struct macaddr {
+       u8 byte[ETH_ALEN];
+};
+
+struct be_cmd_req_mcast_mac_config {
+       struct be_cmd_req_hdr hdr;
+       u16 num_mac;
+       u8 promiscuous;
+       u8 interface_id;
+       struct macaddr mac[32];
+} __packed;
+
+static inline void *embedded_payload(struct be_mcc_wrb *wrb)
+{
+       return wrb->payload.embedded_payload;
+}
+
+static inline struct be_sge *nonembedded_sgl(struct be_mcc_wrb *wrb)
+{
+       return &wrb->payload.sgl[0];
+}
+
+/******************** Modify EQ Delay *******************/
+struct be_cmd_req_modify_eq_delay {
+       struct be_cmd_req_hdr hdr;
+       u32 num_eq;
+       struct {
+               u32 eq_id;
+               u32 phase;
+               u32 delay_multiplier;
+       } delay[8];
+} __packed;
+
+/******************** Get MAC ADDR *******************/
+
+#define ETH_ALEN       6
+
+
+struct be_cmd_req_get_mac_addr {
+       struct be_cmd_req_hdr hdr;
+       u32 nic_port_count;
+       u32 speed;
+       u32 max_speed;
+       u32 link_state;
+       u32 max_frame_size;
+       u16 size_of_structure;
+       u8 mac_address[ETH_ALEN];
+       u32 rsvd[23];
+};
+
+struct be_cmd_resp_get_mac_addr {
+       struct be_cmd_resp_hdr hdr;
+       u32 nic_port_count;
+       u32 speed;
+       u32 max_speed;
+       u32 link_state;
+       u32 max_frame_size;
+       u16 size_of_structure;
+       u8 mac_address[6];
+       u32 rsvd[23];
+};
+
+int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
+                         struct be_queue_info *eq, int eq_delay);
+
+int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
+                         struct be_queue_info *cq, struct be_queue_info *eq,
+                         bool sol_evts, bool no_delay,
+                         int num_cqe_dma_coalesce);
+
+int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
+                         int type);
+int be_poll_mcc(struct be_ctrl_info *ctrl);
+unsigned char mgmt_check_supported_fw(struct be_ctrl_info *ctrl);
+int be_cmd_get_mac_addr(struct be_ctrl_info *ctrl, u8 *mac_addr);
+
+/*ISCSI Functuions */
+int be_cmd_fw_initialize(struct be_ctrl_info *ctrl);
+
+struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem);
+
+int be_mbox_notify(struct be_ctrl_info *ctrl);
+
+int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
+                                   struct be_queue_info *cq,
+                                   struct be_queue_info *dq, int length,
+                                   int entry_size);
+
+int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
+                               struct be_dma_mem *q_mem, u32 page_offset,
+                               u32 num_pages);
+
+int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
+                      struct be_queue_info *wrbq);
+
+struct be_default_pdu_context {
+       u32 dw[4];
+} __packed;
+
+struct amap_be_default_pdu_context {
+       u8 dbuf_cindex[13];     /* dword 0 */
+       u8 rsvd0[3];            /* dword 0 */
+       u8 ring_size[4];        /* dword 0 */
+       u8 ring_state[4];       /* dword 0 */
+       u8 rsvd1[8];            /* dword 0 */
+       u8 dbuf_pindex[13];     /* dword 1 */
+       u8 rsvd2;               /* dword 1 */
+       u8 pci_func_id[8];      /* dword 1 */
+       u8 rx_pdid[9];          /* dword 1 */
+       u8 rx_pdid_valid;       /* dword 1 */
+       u8 default_buffer_size[16];     /* dword 2 */
+       u8 cq_id_recv[10];      /* dword 2 */
+       u8 rx_pdid_not_valid;   /* dword 2 */
+       u8 rsvd3[5];            /* dword 2 */
+       u8 rsvd4[32];           /* dword 3 */
+} __packed;
+
+struct be_defq_create_req {
+       struct be_cmd_req_hdr hdr;
+       u16 num_pages;
+       u8 ulp_num;
+       u8 rsvd0;
+       struct be_default_pdu_context context;
+       struct phys_addr pages[8];
+} __packed;
+
+struct be_defq_create_resp {
+       struct be_cmd_req_hdr hdr;
+       u16 id;
+       u16 rsvd0;
+} __packed;
+
+struct be_post_sgl_pages_req {
+       struct be_cmd_req_hdr hdr;
+       u16 num_pages;
+       u16 page_offset;
+       u32 rsvd0;
+       struct phys_addr pages[26];
+       u32 rsvd1;
+} __packed;
+
+struct be_wrbq_create_req {
+       struct be_cmd_req_hdr hdr;
+       u16 num_pages;
+       u8 ulp_num;
+       u8 rsvd0;
+       struct phys_addr pages[8];
+} __packed;
+
+struct be_wrbq_create_resp {
+       struct be_cmd_resp_hdr resp_hdr;
+       u16 cid;
+       u16 rsvd0;
+} __packed;
+
+#define SOL_CID_MASK           0x0000FFC0
+#define SOL_CODE_MASK          0x0000003F
+#define SOL_WRB_INDEX_MASK     0x00FF0000
+#define SOL_CMD_WND_MASK       0xFF000000
+#define SOL_RES_CNT_MASK       0x7FFFFFFF
+#define SOL_EXP_CMD_SN_MASK    0xFFFFFFFF
+#define SOL_HW_STS_MASK                0x000000FF
+#define SOL_STS_MASK           0x0000FF00
+#define SOL_RESP_MASK          0x00FF0000
+#define SOL_FLAGS_MASK         0x7F000000
+#define SOL_S_MASK             0x80000000
+
+struct sol_cqe {
+       u32 dw[4];
+};
+
+struct amap_sol_cqe {
+       u8 hw_sts[8];           /* dword 0 */
+       u8 i_sts[8];            /* dword 0 */
+       u8 i_resp[8];           /* dword 0 */
+       u8 i_flags[7];          /* dword 0 */
+       u8 s;                   /* dword 0 */
+       u8 i_exp_cmd_sn[32];    /* dword 1 */
+       u8 code[6];             /* dword 2 */
+       u8 cid[10];             /* dword 2 */
+       u8 wrb_index[8];        /* dword 2 */
+       u8 i_cmd_wnd[8];        /* dword 2 */
+       u8 i_res_cnt[31];       /* dword 3 */
+       u8 valid;               /* dword 3 */
+} __packed;
+
+
+/**
+ * Post WRB Queue Doorbell Register used by the host Storage
+ * stack to notify the
+ * controller of a posted Work Request Block
+ */
+#define DB_WRB_POST_CID_MASK           0x3FF   /* bits 0 - 9 */
+#define DB_DEF_PDU_WRB_INDEX_MASK      0xFF    /* bits 0 - 9 */
+
+#define DB_DEF_PDU_WRB_INDEX_SHIFT     16
+#define DB_DEF_PDU_NUM_POSTED_SHIFT    24
+
+struct fragnum_bits_for_sgl_cra_in {
+       struct be_cmd_req_hdr hdr;
+       u32 num_bits;
+} __packed;
+
+struct iscsi_cleanup_req {
+       struct be_cmd_req_hdr hdr;
+       u16 chute;
+       u8 hdr_ring_id;
+       u8 data_ring_id;
+
+} __packed;
+
+struct eq_delay {
+       u32 eq_id;
+       u32 phase;
+       u32 delay_multiplier;
+} __packed;
+
+struct be_eq_delay_params_in {
+       struct be_cmd_req_hdr hdr;
+       u32 num_eq;
+       struct eq_delay delay[8];
+} __packed;
+
+struct ip_address_format {
+       u16 size_of_structure;
+       u8 reserved;
+       u8 ip_type;
+       u8 ip_address[16];
+       u32 rsvd0;
+} __packed;
+
+struct tcp_connect_and_offload_in {
+       struct be_cmd_req_hdr hdr;
+       struct ip_address_format ip_address;
+       u16 tcp_port;
+       u16 cid;
+       u16 cq_id;
+       u16 defq_id;
+       struct phys_addr dataout_template_pa;
+       u16 hdr_ring_id;
+       u16 data_ring_id;
+       u8 do_offload;
+       u8 rsvd0[3];
+} __packed;
+
+struct tcp_connect_and_offload_out {
+       struct be_cmd_resp_hdr hdr;
+       u32 connection_handle;
+       u16 cid;
+       u16 rsvd0;
+
+} __packed;
+
+struct be_mcc_wrb_context {
+       struct MCC_WRB *wrb;
+       int *users_final_status;
+} __packed;
+
+#define DB_DEF_PDU_RING_ID_MASK                0x3FF   /* bits 0 - 9 */
+#define DB_DEF_PDU_CQPROC_MASK         0x3FFF  /* bits 0 - 9 */
+#define DB_DEF_PDU_REARM_SHIFT         14
+#define DB_DEF_PDU_EVENT_SHIFT         15
+#define DB_DEF_PDU_CQPROC_SHIFT                16
+
+struct dmsg_cqe {
+       u32 dw[4];
+} __packed;
+
+struct tcp_upload_params_in {
+       struct be_cmd_req_hdr hdr;
+       u16 id;
+       u16 upload_type;
+       u32 reset_seq;
+} __packed;
+
+struct tcp_upload_params_out {
+       u32 dw[32];
+} __packed;
+
+union tcp_upload_params {
+       struct tcp_upload_params_in request;
+       struct tcp_upload_params_out response;
+} __packed;
+
+struct be_ulp_fw_cfg {
+       u32 ulp_mode;
+       u32 etx_base;
+       u32 etx_count;
+       u32 sq_base;
+       u32 sq_count;
+       u32 rq_base;
+       u32 rq_count;
+       u32 dq_base;
+       u32 dq_count;
+       u32 lro_base;
+       u32 lro_count;
+       u32 icd_base;
+       u32 icd_count;
+};
+
+struct be_fw_cfg {
+       struct be_cmd_req_hdr hdr;
+       u32 be_config_number;
+       u32 asic_revision;
+       u32 phys_port;
+       u32 function_mode;
+       struct be_ulp_fw_cfg ulp[2];
+       u32 function_caps;
+} __packed;
+
+#define CMD_ISCSI_COMMAND_INVALIDATE  1
+#define ISCSI_OPCODE_SCSI_DATA_OUT      5
+#define OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD 70
+#define OPCODE_ISCSI_INI_DRIVER_OFFLOAD_SESSION 41
+#define OPCODE_COMMON_MODIFY_EQ_DELAY  41
+#define OPCODE_COMMON_ISCSI_CLEANUP    59
+#define        OPCODE_COMMON_TCP_UPLOAD        56
+#define OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS 1
+/* --- CMD_ISCSI_INVALIDATE_CONNECTION_TYPE --- */
+#define CMD_ISCSI_CONNECTION_INVALIDATE 1
+#define CMD_ISCSI_CONNECTION_ISSUE_TCP_RST 2
+#define OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION 42
+
+#define INI_WR_CMD                     1       /* Initiator write command */
+#define INI_TMF_CMD                    2       /* Initiator TMF command */
+#define INI_NOPOUT_CMD                 3       /* Initiator; Send a NOP-OUT */
+#define INI_RD_CMD                     5       /* Initiator requesting to send
+                                                * a read command
+                                                */
+#define TGT_CTX_UPDT_CMD               7       /* Target context update */
+#define TGT_STS_CMD                    8       /* Target R2T and other BHS
+                                                * where only the status number
+                                                * need to be updated
+                                                */
+#define TGT_DATAIN_CMD                 9       /* Target Data-Ins in response
+                                                * to read command
+                                                */
+#define TGT_SOS_PDU                    10      /* Target:standalone status
+                                                * response
+                                                */
+#define TGT_DM_CMD                     11      /* Indicates that the bhs
+                                                *  preparedby
+                                                * driver should not be touched
+                                                */
+/* --- CMD_CHUTE_TYPE --- */
+#define CMD_CONNECTION_CHUTE_0         1
+#define CMD_CONNECTION_CHUTE_1         2
+#define CMD_CONNECTION_CHUTE_2         3
+
+#define EQ_MAJOR_CODE_COMPLETION       0
+
+#define CMD_ISCSI_SESSION_DEL_CFG_FROM_FLASH 0
+#define CMD_ISCSI_SESSION_SAVE_CFG_ON_FLASH 1
+
+/* --- CONNECTION_UPLOAD_PARAMS --- */
+/* These parameters are used to define the type of upload desired.  */
+#define CONNECTION_UPLOAD_GRACEFUL      1      /* Graceful upload  */
+#define CONNECTION_UPLOAD_ABORT_RESET   2      /* Abortive upload with
+                                                * reset
+                                                */
+#define CONNECTION_UPLOAD_ABORT                3       /* Abortive upload without
+                                                * reset
+                                                */
+#define CONNECTION_UPLOAD_ABORT_WITH_SEQ 4     /* Abortive upload with reset,
+                                                * sequence number by driver  */
+
+/* Returns byte size of given field with a structure. */
+
+/* Returns the number of items in the field array. */
+#define BE_NUMBER_OF_FIELD(_type_, _field_)    \
+       (FIELD_SIZEOF(_type_, _field_)/sizeof((((_type_ *)0)->_field_[0])))\
+
+/**
+ * Different types of iSCSI completions to host driver for both initiator
+ * and taget mode
+ * of operation.
+ */
+#define SOL_CMD_COMPLETE               1       /* Solicited command completed
+                                                * normally
+                                                */
+#define SOL_CMD_KILLED_DATA_DIGEST_ERR  2      /* Solicited command got
+                                                * invalidated internally due
+                                                * to Data Digest error
+                                                */
+#define CXN_KILLED_PDU_SIZE_EXCEEDS_DSL 3      /* Connection got invalidated
+                                                * internally
+                                                * due to a recieved PDU
+                                                * size > DSL
+                                                */
+#define CXN_KILLED_BURST_LEN_MISMATCH   4      /* Connection got invalidated
+                                                * internally due ti received
+                                                * PDU sequence size >
+                                                * FBL/MBL.
+                                                */
+#define CXN_KILLED_AHS_RCVD            5       /* Connection got invalidated
+                                                * internally due to a recieved
+                                                * PDU Hdr that has
+                                                * AHS */
+#define CXN_KILLED_HDR_DIGEST_ERR      6       /* Connection got invalidated
+                                                * internally due to Hdr Digest
+                                                * error
+                                                */
+#define CXN_KILLED_UNKNOWN_HDR         7       /* Connection got invalidated
+                                                *  internally
+                                                * due to a bad opcode in the
+                                                * pdu hdr
+                                                */
+#define CXN_KILLED_STALE_ITT_TTT_RCVD  8       /* Connection got invalidated
+                                                * internally due to a recieved
+                                                * ITT/TTT that does not belong
+                                                * to this Connection
+                                                */
+#define CXN_KILLED_INVALID_ITT_TTT_RCVD 9      /* Connection got invalidated
+                                                * internally due to recieved
+                                                * ITT/TTT value > Max
+                                                * Supported ITTs/TTTs
+                                                */
+#define CXN_KILLED_RST_RCVD            10      /* Connection got invalidated
+                                                * internally due to an
+                                                * incoming TCP RST
+                                                */
+#define CXN_KILLED_TIMED_OUT           11      /* Connection got invalidated
+                                                * internally due to timeout on
+                                                * tcp segment 12 retransmit
+                                                * attempts failed
+                                                */
+#define CXN_KILLED_RST_SENT            12      /* Connection got invalidated
+                                                * internally due to TCP RST
+                                                * sent by the Tx side
+                                                */
+#define CXN_KILLED_FIN_RCVD            13      /* Connection got invalidated
+                                                * internally due to an
+                                                * incoming TCP FIN.
+                                                */
+#define CXN_KILLED_BAD_UNSOL_PDU_RCVD  14      /* Connection got invalidated
+                                                * internally due to bad
+                                                * unsolicited PDU Unsolicited
+                                                * PDUs are PDUs with
+                                                * ITT=0xffffffff
+                                                */
+#define CXN_KILLED_BAD_WRB_INDEX_ERROR 15      /* Connection got invalidated
+                                                * internally due to bad WRB
+                                                * index.
+                                                */
+#define CXN_KILLED_OVER_RUN_RESIDUAL   16      /* Command got invalidated
+                                                * internally due to recived
+                                                * command has residual
+                                                * over run bytes.
+                                                */
+#define CXN_KILLED_UNDER_RUN_RESIDUAL  17      /* Command got invalidated
+                                                * internally due to recived
+                                                * command has residual under
+                                                * run bytes.
+                                                */
+#define CMD_KILLED_INVALID_STATSN_RCVD 18      /* Command got invalidated
+                                                * internally due to a recieved
+                                                * PDU has an invalid StatusSN
+                                                */
+#define CMD_KILLED_INVALID_R2T_RCVD    19      /* Command got invalidated
+                                                * internally due to a recieved
+                                                * an R2T with some invalid
+                                                * fields in it
+                                                */
+#define CMD_CXN_KILLED_LUN_INVALID     20      /* Command got invalidated
+                                                * internally due to received
+                                                * PDU has an invalid LUN.
+                                                */
+#define CMD_CXN_KILLED_ICD_INVALID     21      /* Command got invalidated
+                                                * internally due to the
+                                                * corresponding ICD not in a
+                                                * valid state
+                                                */
+#define CMD_CXN_KILLED_ITT_INVALID     22      /* Command got invalidated due
+                                                *  to received PDU has an
+                                                *  invalid ITT.
+                                                */
+#define CMD_CXN_KILLED_SEQ_OUTOFORDER  23      /* Command got invalidated due
+                                                * to received sequence buffer
+                                                * offset is out of order.
+                                                */
+#define CMD_CXN_KILLED_INVALID_DATASN_RCVD 24  /* Command got invalidated
+                                                * internally due to a
+                                                * recieved PDU has an invalid
+                                                * DataSN
+                                                */
+#define CXN_INVALIDATE_NOTIFY          25      /* Connection invalidation
+                                                * completion notify.
+                                                */
+#define CXN_INVALIDATE_INDEX_NOTIFY    26      /* Connection invalidation
+                                                * completion
+                                                * with data PDU index.
+                                                */
+#define CMD_INVALIDATED_NOTIFY         27      /* Command invalidation
+                                                * completionnotifify.
+                                                */
+#define UNSOL_HDR_NOTIFY               28      /* Unsolicited header notify.*/
+#define UNSOL_DATA_NOTIFY              29      /* Unsolicited data notify.*/
+#define UNSOL_DATA_DIGEST_ERROR_NOTIFY         30      /* Unsolicited data digest
+                                                * error notify.
+                                                */
+#define DRIVERMSG_NOTIFY               31      /* TCP acknowledge based
+                                                * notification.
+                                                */
+#define CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN 32 /* Connection got invalidated
+                                                 * internally due to command
+                                                 * and data are not on same
+                                                 * connection.
+                                                 */
+#define SOL_CMD_KILLED_DIF_ERR         33      /* Solicited command got
+                                                *  invalidated internally due
+                                                *  to DIF error
+                                                */
+#define CXN_KILLED_SYN_RCVD            34      /* Connection got invalidated
+                                                * internally due to incoming
+                                                * TCP SYN
+                                                */
+#define CXN_KILLED_IMM_DATA_RCVD       35      /* Connection got invalidated
+                                                * internally due to an
+                                                * incoming Unsolicited PDU
+                                                * that has immediate data on
+                                                * the cxn
+                                                */
+
+void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, int payload_len,
+                       bool embedded, u8 sge_cnt);
+
+void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr,
+                       u8 subsystem, u8 opcode, int cmd_len);
+
+#endif /* !BEISCSI_CMDS_H */
diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
new file mode 100644 (file)
index 0000000..2fd2544
--- /dev/null
@@ -0,0 +1,638 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Written by: Jayamohan Kallickal (jayamohank@serverengines.com)
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ *
+ */
+
+#include <scsi/libiscsi.h>
+#include <scsi/scsi_transport_iscsi.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi.h>
+
+#include "be_iscsi.h"
+
+extern struct iscsi_transport beiscsi_iscsi_transport;
+
+/**
+ * beiscsi_session_create - creates a new iscsi session
+ * @cmds_max: max commands supported
+ * @qdepth: max queue depth supported
+ * @initial_cmdsn: initial iscsi CMDSN
+ */
+struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
+                                                u16 cmds_max,
+                                                u16 qdepth,
+                                                u32 initial_cmdsn)
+{
+       struct Scsi_Host *shost;
+       struct beiscsi_endpoint *beiscsi_ep;
+       struct iscsi_cls_session *cls_session;
+       struct beiscsi_hba *phba;
+       struct iscsi_session *sess;
+       struct beiscsi_session *beiscsi_sess;
+       struct beiscsi_io_task *io_task;
+
+       SE_DEBUG(DBG_LVL_8, "In beiscsi_session_create\n");
+
+       if (!ep) {
+               SE_DEBUG(DBG_LVL_1, "beiscsi_session_create: invalid ep \n");
+               return NULL;
+       }
+       beiscsi_ep = ep->dd_data;
+       phba = beiscsi_ep->phba;
+       shost = phba->shost;
+       if (cmds_max > beiscsi_ep->phba->params.wrbs_per_cxn) {
+               shost_printk(KERN_ERR, shost, "Cannot handle %d cmds."
+                            "Max cmds per session supported is %d. Using %d. "
+                            "\n", cmds_max,
+                             beiscsi_ep->phba->params.wrbs_per_cxn,
+                             beiscsi_ep->phba->params.wrbs_per_cxn);
+               cmds_max = beiscsi_ep->phba->params.wrbs_per_cxn;
+       }
+
+        cls_session = iscsi_session_setup(&beiscsi_iscsi_transport,
+                                          shost, cmds_max,
+                                          sizeof(*beiscsi_sess),
+                                          sizeof(*io_task),
+                                          initial_cmdsn, ISCSI_MAX_TARGET);
+       if (!cls_session)
+               return NULL;
+       sess = cls_session->dd_data;
+       beiscsi_sess = sess->dd_data;
+       beiscsi_sess->bhs_pool =  pci_pool_create("beiscsi_bhs_pool",
+                                                  phba->pcidev,
+                                                  sizeof(struct be_cmd_bhs),
+                                                  64, 0);
+       if (!beiscsi_sess->bhs_pool)
+               goto destroy_sess;
+
+       return cls_session;
+destroy_sess:
+       iscsi_session_teardown(cls_session);
+       return NULL;
+}
+
+/**
+ * beiscsi_session_destroy - destroys iscsi session
+ * @cls_session:       pointer to iscsi cls session
+ *
+ * Destroys iSCSI session instance and releases
+ * resources allocated for it.
+ */
+void beiscsi_session_destroy(struct iscsi_cls_session *cls_session)
+{
+       struct iscsi_session *sess = cls_session->dd_data;
+       struct beiscsi_session *beiscsi_sess = sess->dd_data;
+
+       pci_pool_destroy(beiscsi_sess->bhs_pool);
+       iscsi_session_teardown(cls_session);
+}
+
+/**
+ * beiscsi_conn_create - create an instance of iscsi connection
+ * @cls_session: ptr to iscsi_cls_session
+ * @cid: iscsi cid
+ */
+struct iscsi_cls_conn *
+beiscsi_conn_create(struct iscsi_cls_session *cls_session, u32 cid)
+{
+       struct beiscsi_hba *phba;
+       struct Scsi_Host *shost;
+       struct iscsi_cls_conn *cls_conn;
+       struct beiscsi_conn *beiscsi_conn;
+       struct iscsi_conn *conn;
+       struct iscsi_session *sess;
+       struct beiscsi_session *beiscsi_sess;
+
+       SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_create ,cid"
+                "from iscsi layer=%d\n", cid);
+       shost = iscsi_session_to_shost(cls_session);
+       phba = iscsi_host_priv(shost);
+
+       cls_conn = iscsi_conn_setup(cls_session, sizeof(*beiscsi_conn), cid);
+       if (!cls_conn)
+               return NULL;
+
+       conn = cls_conn->dd_data;
+       beiscsi_conn = conn->dd_data;
+       beiscsi_conn->ep = NULL;
+       beiscsi_conn->phba = phba;
+       beiscsi_conn->conn = conn;
+       sess = cls_session->dd_data;
+       beiscsi_sess = sess->dd_data;
+       beiscsi_conn->beiscsi_sess = beiscsi_sess;
+       return cls_conn;
+}
+
+/**
+ * beiscsi_bindconn_cid - Bind the beiscsi_conn with phba connection table
+ * @beiscsi_conn: The pointer to  beiscsi_conn structure
+ * @phba: The phba instance
+ * @cid: The cid to free
+ */
+static int beiscsi_bindconn_cid(struct beiscsi_hba *phba,
+                               struct beiscsi_conn *beiscsi_conn,
+                               unsigned int cid)
+{
+       if (phba->conn_table[cid]) {
+               SE_DEBUG(DBG_LVL_1,
+                        "Connection table already occupied. Detected clash\n");
+               return -EINVAL;
+       } else {
+               SE_DEBUG(DBG_LVL_8, "phba->conn_table[%d]=%p(beiscsi_conn) \n",
+                        cid, beiscsi_conn);
+               phba->conn_table[cid] = beiscsi_conn;
+       }
+       return 0;
+}
+
+/**
+ * beiscsi_conn_bind - Binds iscsi session/connection with TCP connection
+ * @cls_session: pointer to iscsi cls session
+ * @cls_conn: pointer to iscsi cls conn
+ * @transport_fd: EP handle(64 bit)
+ *
+ * This function binds the TCP Conn with iSCSI Connection and Session.
+ */
+int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
+                     struct iscsi_cls_conn *cls_conn,
+                     u64 transport_fd, int is_leading)
+{
+       struct iscsi_conn *conn = cls_conn->dd_data;
+       struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+       struct Scsi_Host *shost =
+               (struct Scsi_Host *)iscsi_session_to_shost(cls_session);
+       struct beiscsi_hba *phba = (struct beiscsi_hba *)iscsi_host_priv(shost);
+       struct beiscsi_endpoint *beiscsi_ep;
+       struct iscsi_endpoint *ep;
+
+       SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_bind\n");
+       ep = iscsi_lookup_endpoint(transport_fd);
+       if (!ep)
+               return -EINVAL;
+
+       beiscsi_ep = ep->dd_data;
+
+       if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
+               return -EINVAL;
+
+       if (beiscsi_ep->phba != phba) {
+               SE_DEBUG(DBG_LVL_8,
+                        "beiscsi_ep->hba=%p not equal to phba=%p \n",
+                        beiscsi_ep->phba, phba);
+               return -EEXIST;
+       }
+
+       beiscsi_conn->beiscsi_conn_cid = beiscsi_ep->ep_cid;
+       beiscsi_conn->ep = beiscsi_ep;
+       beiscsi_ep->conn = beiscsi_conn;
+       SE_DEBUG(DBG_LVL_8, "beiscsi_conn=%p conn=%p ep_cid=%d \n",
+                beiscsi_conn, conn, beiscsi_ep->ep_cid);
+       return beiscsi_bindconn_cid(phba, beiscsi_conn, beiscsi_ep->ep_cid);
+}
+
+/**
+ * beiscsi_conn_get_param - get the iscsi parameter
+ * @cls_conn: pointer to iscsi cls conn
+ * @param: parameter type identifier
+ * @buf: buffer pointer
+ *
+ * returns iscsi parameter
+ */
+int beiscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
+                          enum iscsi_param param, char *buf)
+{
+       struct beiscsi_endpoint *beiscsi_ep;
+       struct iscsi_conn *conn = cls_conn->dd_data;
+       struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+       int len = 0;
+
+       beiscsi_ep = beiscsi_conn->ep;
+       if (!beiscsi_ep) {
+               SE_DEBUG(DBG_LVL_1,
+                        "In beiscsi_conn_get_param , no beiscsi_ep\n");
+               return -1;
+       }
+
+       switch (param) {
+       case ISCSI_PARAM_CONN_PORT:
+               len = sprintf(buf, "%hu\n", beiscsi_ep->dst_tcpport);
+               break;
+       case ISCSI_PARAM_CONN_ADDRESS:
+               if (beiscsi_ep->ip_type == BE2_IPV4)
+                       len = sprintf(buf, "%pI4\n", &beiscsi_ep->dst_addr);
+               else
+                       len = sprintf(buf, "%pI6\n", &beiscsi_ep->dst6_addr);
+               break;
+       default:
+               return iscsi_conn_get_param(cls_conn, param, buf);
+       }
+       return len;
+}
+
+int beiscsi_set_param(struct iscsi_cls_conn *cls_conn,
+                     enum iscsi_param param, char *buf, int buflen)
+{
+       struct iscsi_conn *conn = cls_conn->dd_data;
+       struct iscsi_session *session = conn->session;
+       int ret;
+
+       ret = iscsi_set_param(cls_conn, param, buf, buflen);
+       if (ret)
+               return ret;
+       /*
+        * If userspace tried to set the value to higher than we can
+        * support override here.
+        */
+       switch (param) {
+       case ISCSI_PARAM_FIRST_BURST:
+               if (session->first_burst > 8192)
+                       session->first_burst = 8192;
+               break;
+       case ISCSI_PARAM_MAX_RECV_DLENGTH:
+               if (conn->max_recv_dlength > 65536)
+                       conn->max_recv_dlength = 65536;
+               break;
+       case ISCSI_PARAM_MAX_BURST:
+               if (session->first_burst > 262144)
+                       session->first_burst = 262144;
+               break;
+       default:
+               return 0;
+       }
+
+       return 0;
+}
+
+/**
+ * beiscsi_get_host_param - get the iscsi parameter
+ * @shost: pointer to scsi_host structure
+ * @param: parameter type identifier
+ * @buf: buffer pointer
+ *
+ * returns host parameter
+ */
+int beiscsi_get_host_param(struct Scsi_Host *shost,
+                          enum iscsi_host_param param, char *buf)
+{
+       struct beiscsi_hba *phba = (struct beiscsi_hba *)iscsi_host_priv(shost);
+       int len = 0;
+
+       switch (param) {
+       case ISCSI_HOST_PARAM_HWADDRESS:
+               be_cmd_get_mac_addr(&phba->ctrl, phba->mac_address);
+               len = sysfs_format_mac(buf, phba->mac_address, ETH_ALEN);
+               break;
+       default:
+               return iscsi_host_get_param(shost, param, buf);
+       }
+       return len;
+}
+
+/**
+ * beiscsi_conn_get_stats - get the iscsi stats
+ * @cls_conn: pointer to iscsi cls conn
+ * @stats: pointer to iscsi_stats structure
+ *
+ * returns iscsi stats
+ */
+void beiscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn,
+                           struct iscsi_stats *stats)
+{
+       struct iscsi_conn *conn = cls_conn->dd_data;
+
+       SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_get_stats\n");
+       stats->txdata_octets = conn->txdata_octets;
+       stats->rxdata_octets = conn->rxdata_octets;
+       stats->dataout_pdus = conn->dataout_pdus_cnt;
+       stats->scsirsp_pdus = conn->scsirsp_pdus_cnt;
+       stats->scsicmd_pdus = conn->scsicmd_pdus_cnt;
+       stats->datain_pdus = conn->datain_pdus_cnt;
+       stats->tmfrsp_pdus = conn->tmfrsp_pdus_cnt;
+       stats->tmfcmd_pdus = conn->tmfcmd_pdus_cnt;
+       stats->r2t_pdus = conn->r2t_pdus_cnt;
+       stats->digest_err = 0;
+       stats->timeout_err = 0;
+       stats->custom_length = 0;
+       strcpy(stats->custom[0].desc, "eh_abort_cnt");
+       stats->custom[0].value = conn->eh_abort_cnt;
+}
+
+/**
+ * beiscsi_set_params_for_offld - get the parameters for offload
+ * @beiscsi_conn: pointer to beiscsi_conn
+ * @params: pointer to offload_params structure
+ */
+static void  beiscsi_set_params_for_offld(struct beiscsi_conn *beiscsi_conn,
+                                         struct beiscsi_offload_params *params)
+{
+       struct iscsi_conn *conn = beiscsi_conn->conn;
+       struct iscsi_session *session = conn->session;
+
+       AMAP_SET_BITS(struct amap_beiscsi_offload_params, max_burst_length,
+                     params, session->max_burst);
+       AMAP_SET_BITS(struct amap_beiscsi_offload_params,
+                     max_send_data_segment_length, params,
+                     conn->max_xmit_dlength);
+       AMAP_SET_BITS(struct amap_beiscsi_offload_params, first_burst_length,
+                     params, session->first_burst);
+       AMAP_SET_BITS(struct amap_beiscsi_offload_params, erl, params,
+                     session->erl);
+       AMAP_SET_BITS(struct amap_beiscsi_offload_params, dde, params,
+                     conn->datadgst_en);
+       AMAP_SET_BITS(struct amap_beiscsi_offload_params, hde, params,
+                     conn->hdrdgst_en);
+       AMAP_SET_BITS(struct amap_beiscsi_offload_params, ir2t, params,
+                     session->initial_r2t_en);
+       AMAP_SET_BITS(struct amap_beiscsi_offload_params, imd, params,
+                     session->imm_data_en);
+       AMAP_SET_BITS(struct amap_beiscsi_offload_params, exp_statsn, params,
+                     (conn->exp_statsn - 1));
+}
+
+/**
+ * beiscsi_conn_start - offload of session to chip
+ * @cls_conn: pointer to beiscsi_conn
+ */
+int beiscsi_conn_start(struct iscsi_cls_conn *cls_conn)
+{
+       struct iscsi_conn *conn = cls_conn->dd_data;
+       struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+       struct beiscsi_endpoint *beiscsi_ep;
+       struct beiscsi_offload_params params;
+       struct iscsi_session *session = conn->session;
+       struct Scsi_Host *shost = iscsi_session_to_shost(session->cls_session);
+       struct beiscsi_hba *phba = iscsi_host_priv(shost);
+
+       memset(&params, 0, sizeof(struct beiscsi_offload_params));
+       beiscsi_ep = beiscsi_conn->ep;
+       if (!beiscsi_ep)
+               SE_DEBUG(DBG_LVL_1, "In beiscsi_conn_start , no beiscsi_ep\n");
+
+       free_mgmt_sgl_handle(phba, beiscsi_conn->plogin_sgl_handle);
+       beiscsi_conn->login_in_progress = 0;
+       beiscsi_set_params_for_offld(beiscsi_conn, &params);
+       beiscsi_offload_connection(beiscsi_conn, &params);
+       iscsi_conn_start(cls_conn);
+       return 0;
+}
+
+/**
+ * beiscsi_get_cid - Allocate a cid
+ * @phba: The phba instance
+ */
+static int beiscsi_get_cid(struct beiscsi_hba *phba)
+{
+       unsigned short cid = 0xFFFF;
+
+       if (!phba->avlbl_cids)
+               return cid;
+
+       cid = phba->cid_array[phba->cid_alloc++];
+       if (phba->cid_alloc == phba->params.cxns_per_ctrl)
+               phba->cid_alloc = 0;
+       phba->avlbl_cids--;
+       return cid;
+}
+
+/**
+ * beiscsi_open_conn - Ask FW to open a TCP connection
+ * @ep:        endpoint to be used
+ * @src_addr: The source IP address
+ * @dst_addr: The Destination  IP address
+ *
+ * Asks the FW to open a TCP connection
+ */
+static int beiscsi_open_conn(struct iscsi_endpoint *ep,
+                            struct sockaddr *src_addr,
+                            struct sockaddr *dst_addr, int non_blocking)
+{
+       struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
+       struct beiscsi_hba *phba = beiscsi_ep->phba;
+       int ret = -1;
+
+       beiscsi_ep->ep_cid = beiscsi_get_cid(phba);
+       if (beiscsi_ep->ep_cid == 0xFFFF) {
+               SE_DEBUG(DBG_LVL_1, "No free cid available\n");
+               return ret;
+       }
+       SE_DEBUG(DBG_LVL_8, "In beiscsi_open_conn, ep_cid=%d ",
+                beiscsi_ep->ep_cid);
+       phba->ep_array[beiscsi_ep->ep_cid] = ep;
+       if (beiscsi_ep->ep_cid >
+           (phba->fw_config.iscsi_cid_start + phba->params.cxns_per_ctrl)) {
+               SE_DEBUG(DBG_LVL_1, "Failed in allocate iscsi cid\n");
+               return ret;
+       }
+
+       beiscsi_ep->cid_vld = 0;
+       return mgmt_open_connection(phba, dst_addr, beiscsi_ep);
+}
+
+/**
+ * beiscsi_put_cid - Free the cid
+ * @phba: The phba for which the cid is being freed
+ * @cid: The cid to free
+ */
+static void beiscsi_put_cid(struct beiscsi_hba *phba, unsigned short cid)
+{
+       phba->avlbl_cids++;
+       phba->cid_array[phba->cid_free++] = cid;
+       if (phba->cid_free == phba->params.cxns_per_ctrl)
+               phba->cid_free = 0;
+}
+
+/**
+ * beiscsi_free_ep - free endpoint
+ * @ep:        pointer to iscsi endpoint structure
+ */
+static void beiscsi_free_ep(struct iscsi_endpoint *ep)
+{
+       struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
+       struct beiscsi_hba *phba = beiscsi_ep->phba;
+
+       beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
+       beiscsi_ep->phba = NULL;
+       iscsi_destroy_endpoint(ep);
+}
+
+/**
+ * beiscsi_ep_connect - Ask chip to create TCP Conn
+ * @scsi_host: Pointer to scsi_host structure
+ * @dst_addr: The IP address of Target
+ * @non_blocking: blocking or non-blocking call
+ *
+ * This routines first asks chip to create a connection and then allocates an EP
+ */
+struct iscsi_endpoint *
+beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
+                  int non_blocking)
+{
+       struct beiscsi_hba *phba;
+       struct beiscsi_endpoint *beiscsi_ep;
+       struct iscsi_endpoint *ep;
+       int ret;
+
+       SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_connect \n");
+       if (shost)
+               phba = iscsi_host_priv(shost);
+       else {
+               ret = -ENXIO;
+               SE_DEBUG(DBG_LVL_1, "shost is NULL \n");
+               return ERR_PTR(ret);
+       }
+       ep = iscsi_create_endpoint(sizeof(struct beiscsi_endpoint));
+       if (!ep) {
+               ret = -ENOMEM;
+               return ERR_PTR(ret);
+       }
+
+       beiscsi_ep = ep->dd_data;
+       beiscsi_ep->phba = phba;
+
+       if (beiscsi_open_conn(ep, NULL, dst_addr, non_blocking)) {
+               SE_DEBUG(DBG_LVL_1, "Failed in allocate iscsi cid\n");
+               ret = -ENOMEM;
+               goto free_ep;
+       }
+
+       return ep;
+
+free_ep:
+       beiscsi_free_ep(ep);
+       return ERR_PTR(ret);
+}
+
+/**
+ * beiscsi_ep_poll - Poll to see if connection is established
+ * @ep:        endpoint to be used
+ * @timeout_ms: timeout specified in millisecs
+ *
+ * Poll to see if TCP connection established
+ */
+int beiscsi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
+{
+       struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
+
+       SE_DEBUG(DBG_LVL_8, "In  beiscsi_ep_poll\n");
+       if (beiscsi_ep->cid_vld == 1)
+               return 1;
+       else
+               return 0;
+}
+
+/**
+ * beiscsi_close_conn - Upload the  connection
+ * @ep: The iscsi endpoint
+ * @flag: The type of connection closure
+ */
+static int beiscsi_close_conn(struct iscsi_endpoint *ep, int flag)
+{
+       int ret = 0;
+       struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
+       struct beiscsi_hba *phba = beiscsi_ep->phba;
+
+       if (MGMT_STATUS_SUCCESS !=
+           mgmt_upload_connection(phba, beiscsi_ep->ep_cid,
+               CONNECTION_UPLOAD_GRACEFUL)) {
+               SE_DEBUG(DBG_LVL_8, "upload failed for cid 0x%x",
+                        beiscsi_ep->ep_cid);
+               ret = -1;
+       }
+
+       return ret;
+}
+
+/**
+ * beiscsi_ep_disconnect - Tears down the TCP connection
+ * @ep:        endpoint to be used
+ *
+ * Tears down the TCP connection
+ */
+void beiscsi_ep_disconnect(struct iscsi_endpoint *ep)
+{
+       struct beiscsi_conn *beiscsi_conn;
+       struct beiscsi_endpoint *beiscsi_ep;
+       struct beiscsi_hba *phba;
+       int flag = 0;
+
+       beiscsi_ep = ep->dd_data;
+       phba = beiscsi_ep->phba;
+       SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_disconnect\n");
+
+       if (beiscsi_ep->conn) {
+               beiscsi_conn = beiscsi_ep->conn;
+               iscsi_suspend_queue(beiscsi_conn->conn);
+               beiscsi_close_conn(ep, flag);
+       }
+
+       beiscsi_free_ep(ep);
+}
+
+/**
+ * beiscsi_unbind_conn_to_cid - Unbind the beiscsi_conn from phba conn table
+ * @phba: The phba instance
+ * @cid: The cid to free
+ */
+static int beiscsi_unbind_conn_to_cid(struct beiscsi_hba *phba,
+                                     unsigned int cid)
+{
+       if (phba->conn_table[cid])
+               phba->conn_table[cid] = NULL;
+       else {
+               SE_DEBUG(DBG_LVL_8, "Connection table Not occupied. \n");
+               return -EINVAL;
+       }
+       return 0;
+}
+
+/**
+ * beiscsi_conn_stop - Invalidate and stop the connection
+ * @cls_conn: pointer to get iscsi_conn
+ * @flag: The type of connection closure
+ */
+void beiscsi_conn_stop(struct iscsi_cls_conn *cls_conn, int flag)
+{
+       struct iscsi_conn *conn = cls_conn->dd_data;
+       struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+       struct beiscsi_endpoint *beiscsi_ep;
+       struct iscsi_session *session = conn->session;
+       struct Scsi_Host *shost = iscsi_session_to_shost(session->cls_session);
+       struct beiscsi_hba *phba = iscsi_host_priv(shost);
+       unsigned int status;
+       unsigned short savecfg_flag = CMD_ISCSI_SESSION_SAVE_CFG_ON_FLASH;
+
+       SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_stop\n");
+       beiscsi_ep = beiscsi_conn->ep;
+       if (!beiscsi_ep) {
+               SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_stop , no beiscsi_ep\n");
+               return;
+       }
+       status = mgmt_invalidate_connection(phba, beiscsi_ep,
+                                           beiscsi_ep->ep_cid, 1,
+                                           savecfg_flag);
+       if (status != MGMT_STATUS_SUCCESS) {
+               SE_DEBUG(DBG_LVL_1,
+                        "mgmt_invalidate_connection Failed for cid=%d \n",
+                        beiscsi_ep->ep_cid);
+       }
+       beiscsi_unbind_conn_to_cid(phba, beiscsi_ep->ep_cid);
+       iscsi_conn_stop(cls_conn, flag);
+}
diff --git a/drivers/scsi/be2iscsi/be_iscsi.h b/drivers/scsi/be2iscsi/be_iscsi.h
new file mode 100644 (file)
index 0000000..f92ffc5
--- /dev/null
@@ -0,0 +1,75 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Written by: Jayamohan Kallickal (jayamohank@serverengines.com)
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ *
+ */
+
+#ifndef _BE_ISCSI_
+#define _BE_ISCSI_
+
+#include "be_main.h"
+#include "be_mgmt.h"
+
+#define BE2_IPV4  0x1
+#define BE2_IPV6  0x10
+
+void beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn,
+                               struct beiscsi_offload_params *params);
+
+void beiscsi_offload_iscsi(struct beiscsi_hba *phba, struct iscsi_conn *conn,
+                          struct beiscsi_conn *beiscsi_conn,
+                          unsigned int fw_handle);
+
+struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
+                                                uint16_t cmds_max,
+                                                uint16_t qdepth,
+                                                uint32_t initial_cmdsn);
+
+void beiscsi_session_destroy(struct iscsi_cls_session *cls_session);
+
+struct iscsi_cls_conn *beiscsi_conn_create(struct iscsi_cls_session
+                                          *cls_session, uint32_t cid);
+
+int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
+                     struct iscsi_cls_conn *cls_conn,
+                     uint64_t transport_fd, int is_leading);
+
+int beiscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
+                          enum iscsi_param param, char *buf);
+
+int beiscsi_get_host_param(struct Scsi_Host *shost,
+                          enum iscsi_host_param param, char *buf);
+
+int beiscsi_set_param(struct iscsi_cls_conn *cls_conn,
+                     enum iscsi_param param, char *buf, int buflen);
+
+int beiscsi_conn_start(struct iscsi_cls_conn *cls_conn);
+
+void beiscsi_conn_stop(struct iscsi_cls_conn *cls_conn, int flag);
+
+struct iscsi_endpoint *beiscsi_ep_connect(struct Scsi_Host *shost,
+                                         struct sockaddr *dst_addr,
+                                         int non_blocking);
+
+int beiscsi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
+
+void beiscsi_ep_disconnect(struct iscsi_endpoint *ep);
+
+void beiscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn,
+                           struct iscsi_stats *stats);
+
+#endif
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
new file mode 100644 (file)
index 0000000..4f1aca3
--- /dev/null
@@ -0,0 +1,3390 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Written by: Jayamohan Kallickal (jayamohank@serverengines.com)
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ *  ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ *
+ */
+#include <linux/reboot.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/blkdev.h>
+#include <linux/pci.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/semaphore.h>
+
+#include <scsi/libiscsi.h>
+#include <scsi/scsi_transport_iscsi.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi.h>
+#include "be_main.h"
+#include "be_iscsi.h"
+#include "be_mgmt.h"
+
+static unsigned int be_iopoll_budget = 10;
+static unsigned int be_max_phys_size = 64;
+static unsigned int enable_msix;
+
+MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table);
+MODULE_DESCRIPTION(DRV_DESC " " BUILD_STR);
+MODULE_AUTHOR("ServerEngines Corporation");
+MODULE_LICENSE("GPL");
+module_param(be_iopoll_budget, int, 0);
+module_param(enable_msix, int, 0);
+module_param(be_max_phys_size, uint, S_IRUGO);
+MODULE_PARM_DESC(be_max_phys_size, "Maximum Size (In Kilobytes) of physically"
+                                  "contiguous memory that can be allocated."
+                                  "Range is 16 - 128");
+
+static int beiscsi_slave_configure(struct scsi_device *sdev)
+{
+       blk_queue_max_segment_size(sdev->request_queue, 65536);
+       return 0;
+}
+
+static struct scsi_host_template beiscsi_sht = {
+       .module = THIS_MODULE,
+       .name = "ServerEngines 10Gbe open-iscsi Initiator Driver",
+       .proc_name = DRV_NAME,
+       .queuecommand = iscsi_queuecommand,
+       .eh_abort_handler = iscsi_eh_abort,
+       .change_queue_depth = iscsi_change_queue_depth,
+       .slave_configure = beiscsi_slave_configure,
+       .target_alloc = iscsi_target_alloc,
+       .eh_device_reset_handler = iscsi_eh_device_reset,
+       .eh_target_reset_handler = iscsi_eh_target_reset,
+       .sg_tablesize = BEISCSI_SGLIST_ELEMENTS,
+       .can_queue = BE2_IO_DEPTH,
+       .this_id = -1,
+       .max_sectors = BEISCSI_MAX_SECTORS,
+       .cmd_per_lun = BEISCSI_CMD_PER_LUN,
+       .use_clustering = ENABLE_CLUSTERING,
+};
+static struct scsi_transport_template *beiscsi_scsi_transport;
+
+/*------------------- PCI Driver operations and data ----------------- */
+static DEFINE_PCI_DEVICE_TABLE(beiscsi_pci_id_table) = {
+       { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
+       { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
+       { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
+       { 0 }
+};
+MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table);
+
+static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev)
+{
+       struct beiscsi_hba *phba;
+       struct Scsi_Host *shost;
+
+       shost = iscsi_host_alloc(&beiscsi_sht, sizeof(*phba), 0);
+       if (!shost) {
+               dev_err(&pcidev->dev, "beiscsi_hba_alloc -"
+                       "iscsi_host_alloc failed \n");
+               return NULL;
+       }
+       shost->dma_boundary = pcidev->dma_mask;
+       shost->max_id = BE2_MAX_SESSIONS;
+       shost->max_channel = 0;
+       shost->max_cmd_len = BEISCSI_MAX_CMD_LEN;
+       shost->max_lun = BEISCSI_NUM_MAX_LUN;
+       shost->transportt = beiscsi_scsi_transport;
+
+       phba = iscsi_host_priv(shost);
+       memset(phba, 0, sizeof(*phba));
+       phba->shost = shost;
+       phba->pcidev = pci_dev_get(pcidev);
+
+       if (iscsi_host_add(shost, &phba->pcidev->dev))
+               goto free_devices;
+       return phba;
+
+free_devices:
+       pci_dev_put(phba->pcidev);
+       iscsi_host_free(phba->shost);
+       return NULL;
+}
+
+static void beiscsi_unmap_pci_function(struct beiscsi_hba *phba)
+{
+       if (phba->csr_va) {
+               iounmap(phba->csr_va);
+               phba->csr_va = NULL;
+       }
+       if (phba->db_va) {
+               iounmap(phba->db_va);
+               phba->db_va = NULL;
+       }
+       if (phba->pci_va) {
+               iounmap(phba->pci_va);
+               phba->pci_va = NULL;
+       }
+}
+
+static int beiscsi_map_pci_bars(struct beiscsi_hba *phba,
+                               struct pci_dev *pcidev)
+{
+       u8 __iomem *addr;
+
+       addr = ioremap_nocache(pci_resource_start(pcidev, 2),
+                              pci_resource_len(pcidev, 2));
+       if (addr == NULL)
+               return -ENOMEM;
+       phba->ctrl.csr = addr;
+       phba->csr_va = addr;
+       phba->csr_pa.u.a64.address = pci_resource_start(pcidev, 2);
+
+       addr = ioremap_nocache(pci_resource_start(pcidev, 4), 128 * 1024);
+       if (addr == NULL)
+               goto pci_map_err;
+       phba->ctrl.db = addr;
+       phba->db_va = addr;
+       phba->db_pa.u.a64.address =  pci_resource_start(pcidev, 4);
+
+       addr = ioremap_nocache(pci_resource_start(pcidev, 1),
+                              pci_resource_len(pcidev, 1));
+       if (addr == NULL)
+               goto pci_map_err;
+       phba->ctrl.pcicfg = addr;
+       phba->pci_va = addr;
+       phba->pci_pa.u.a64.address = pci_resource_start(pcidev, 1);
+       return 0;
+
+pci_map_err:
+       beiscsi_unmap_pci_function(phba);
+       return -ENOMEM;
+}
+
+static int beiscsi_enable_pci(struct pci_dev *pcidev)
+{
+       int ret;
+
+       ret = pci_enable_device(pcidev);
+       if (ret) {
+               dev_err(&pcidev->dev, "beiscsi_enable_pci - enable device "
+                       "failed. Returning -ENODEV\n");
+               return ret;
+       }
+
+       if (pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64))) {
+               ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
+               if (ret) {
+                       dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n");
+                       pci_disable_device(pcidev);
+                       return ret;
+               }
+       }
+       return 0;
+}
+
+static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev)
+{
+       struct be_ctrl_info *ctrl = &phba->ctrl;
+       struct be_dma_mem *mbox_mem_alloc = &ctrl->mbox_mem_alloced;
+       struct be_dma_mem *mbox_mem_align = &ctrl->mbox_mem;
+       int status = 0;
+
+       ctrl->pdev = pdev;
+       status = beiscsi_map_pci_bars(phba, pdev);
+       if (status)
+               return status;
+
+       mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
+       mbox_mem_alloc->va = pci_alloc_consistent(pdev,
+                                                 mbox_mem_alloc->size,
+                                                 &mbox_mem_alloc->dma);
+       if (!mbox_mem_alloc->va) {
+               beiscsi_unmap_pci_function(phba);
+               status = -ENOMEM;
+               return status;
+       }
+
+       mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
+       mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
+       mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
+       memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
+       spin_lock_init(&ctrl->mbox_lock);
+       return status;
+}
+
+static void beiscsi_get_params(struct beiscsi_hba *phba)
+{
+       phba->params.ios_per_ctrl = BE2_IO_DEPTH;
+       phba->params.cxns_per_ctrl = BE2_MAX_SESSIONS;
+       phba->params.asyncpdus_per_ctrl = BE2_ASYNCPDUS;
+       phba->params.icds_per_ctrl = BE2_MAX_ICDS / 2;
+       phba->params.num_sge_per_io = BE2_SGE;
+       phba->params.defpdu_hdr_sz = BE2_DEFPDU_HDR_SZ;
+       phba->params.defpdu_data_sz = BE2_DEFPDU_DATA_SZ;
+       phba->params.eq_timer = 64;
+       phba->params.num_eq_entries =
+           (((BE2_CMDS_PER_CXN * 2 + BE2_LOGOUTS + BE2_TMFS + BE2_ASYNCPDUS) /
+                                                               512) + 1) * 512;
+       phba->params.num_eq_entries = (phba->params.num_eq_entries < 1024)
+                               ? 1024 : phba->params.num_eq_entries;
+       SE_DEBUG(DBG_LVL_8, "phba->params.num_eq_entries=%d \n",
+                phba->params.num_eq_entries);
+       phba->params.num_cq_entries =
+           (((BE2_CMDS_PER_CXN * 2 + BE2_LOGOUTS + BE2_TMFS + BE2_ASYNCPDUS) /
+                                                               512) + 1) * 512;
+       SE_DEBUG(DBG_LVL_8,
+               "phba->params.num_cq_entries=%d BE2_CMDS_PER_CXN=%d"
+               "BE2_LOGOUTS=%d BE2_TMFS=%d BE2_ASYNCPDUS=%d \n",
+               phba->params.num_cq_entries, BE2_CMDS_PER_CXN,
+               BE2_LOGOUTS, BE2_TMFS, BE2_ASYNCPDUS);
+       phba->params.wrbs_per_cxn = 256;
+}
+
+static void hwi_ring_eq_db(struct beiscsi_hba *phba,
+                          unsigned int id, unsigned int clr_interrupt,
+                          unsigned int num_processed,
+                          unsigned char rearm, unsigned char event)
+{
+       u32 val = 0;
+       val |= id & DB_EQ_RING_ID_MASK;
+       if (rearm)
+               val |= 1 << DB_EQ_REARM_SHIFT;
+       if (clr_interrupt)
+               val |= 1 << DB_EQ_CLR_SHIFT;
+       if (event)
+               val |= 1 << DB_EQ_EVNT_SHIFT;
+       val |= num_processed << DB_EQ_NUM_POPPED_SHIFT;
+       iowrite32(val, phba->db_va + DB_EQ_OFFSET);
+}
+
+/**
+ * be_isr - The isr routine of the driver.
+ * @irq: Not used
+ * @dev_id: Pointer to host adapter structure
+ */
+static irqreturn_t be_isr(int irq, void *dev_id)
+{
+       struct beiscsi_hba *phba;
+       struct hwi_controller *phwi_ctrlr;
+       struct hwi_context_memory *phwi_context;
+       struct be_eq_entry *eqe = NULL;
+       struct be_queue_info *eq;
+       struct be_queue_info *cq;
+       unsigned long flags, index;
+       unsigned int num_eq_processed;
+       struct be_ctrl_info *ctrl;
+       int isr;
+
+       phba = dev_id;
+       if (!enable_msix) {
+               ctrl = &phba->ctrl;;
+               isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET +
+                              (PCI_FUNC(ctrl->pdev->devfn) * CEV_ISR_SIZE));
+               if (!isr)
+                       return IRQ_NONE;
+       }
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       phwi_context = phwi_ctrlr->phwi_ctxt;
+       eq = &phwi_context->be_eq.q;
+       cq = &phwi_context->be_cq;
+       index = 0;
+       eqe = queue_tail_node(eq);
+       if (!eqe)
+               SE_DEBUG(DBG_LVL_1, "eqe is NULL\n");
+
+       num_eq_processed = 0;
+       if (blk_iopoll_enabled) {
+               while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
+                                       & EQE_VALID_MASK) {
+                       if (!blk_iopoll_sched_prep(&phba->iopoll))
+                               blk_iopoll_sched(&phba->iopoll);
+
+                       AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
+                       queue_tail_inc(eq);
+                       eqe = queue_tail_node(eq);
+                       num_eq_processed++;
+                       SE_DEBUG(DBG_LVL_8, "Valid EQE\n");
+               }
+               if (num_eq_processed) {
+                       hwi_ring_eq_db(phba, eq->id, 0, num_eq_processed, 0, 1);
+                       return IRQ_HANDLED;
+               } else
+                       return IRQ_NONE;
+       } else {
+               while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
+                                               & EQE_VALID_MASK) {
+
+                       if (((eqe->dw[offsetof(struct amap_eq_entry,
+                            resource_id) / 32] &
+                            EQE_RESID_MASK) >> 16) != cq->id) {
+                               spin_lock_irqsave(&phba->isr_lock, flags);
+                               phba->todo_mcc_cq = 1;
+                               spin_unlock_irqrestore(&phba->isr_lock, flags);
+                       } else {
+                               spin_lock_irqsave(&phba->isr_lock, flags);
+                               phba->todo_cq = 1;
+                               spin_unlock_irqrestore(&phba->isr_lock, flags);
+                       }
+                       AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
+                       queue_tail_inc(eq);
+                       eqe = queue_tail_node(eq);
+                       num_eq_processed++;
+               }
+               if (phba->todo_cq || phba->todo_mcc_cq)
+                       queue_work(phba->wq, &phba->work_cqs);
+
+               if (num_eq_processed) {
+                       hwi_ring_eq_db(phba, eq->id, 0, num_eq_processed, 1, 1);
+                       return IRQ_HANDLED;
+               } else
+                       return IRQ_NONE;
+       }
+}
+
+static int beiscsi_init_irqs(struct beiscsi_hba *phba)
+{
+       struct pci_dev *pcidev = phba->pcidev;
+       int ret;
+
+       ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED, "beiscsi", phba);
+       if (ret) {
+               shost_printk(KERN_ERR, phba->shost, "beiscsi_init_irqs-"
+                            "Failed to register irq\\n");
+               return ret;
+       }
+       return 0;
+}
+
+static void hwi_ring_cq_db(struct beiscsi_hba *phba,
+                          unsigned int id, unsigned int num_processed,
+                          unsigned char rearm, unsigned char event)
+{
+       u32 val = 0;
+       val |= id & DB_CQ_RING_ID_MASK;
+       if (rearm)
+               val |= 1 << DB_CQ_REARM_SHIFT;
+       val |= num_processed << DB_CQ_NUM_POPPED_SHIFT;
+       iowrite32(val, phba->db_va + DB_CQ_OFFSET);
+}
+
+/*
+ * async pdus include
+ * a. unsolicited NOP-In (target initiated NOP-In)
+ * b. Async Messages
+ * c. Reject PDU
+ * d. Login response
+ * These headers arrive unprocessed by the EP firmware and iSCSI layer
+ * process them
+ */
+static unsigned int
+beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn,
+                         struct beiscsi_hba *phba,
+                         unsigned short cid,
+                         struct pdu_base *ppdu,
+                         unsigned long pdu_len,
+                         void *pbuffer, unsigned long buf_len)
+{
+       struct iscsi_conn *conn = beiscsi_conn->conn;
+       struct iscsi_session *session = conn->session;
+
+       switch (ppdu->dw[offsetof(struct amap_pdu_base, opcode) / 32] &
+                                               PDUBASE_OPCODE_MASK) {
+       case ISCSI_OP_NOOP_IN:
+               pbuffer = NULL;
+               buf_len = 0;
+               break;
+       case ISCSI_OP_ASYNC_EVENT:
+               break;
+       case ISCSI_OP_REJECT:
+               WARN_ON(!pbuffer);
+               WARN_ON(!(buf_len == 48));
+               SE_DEBUG(DBG_LVL_1, "In ISCSI_OP_REJECT\n");
+               break;
+       case ISCSI_OP_LOGIN_RSP:
+               break;
+       default:
+               shost_printk(KERN_WARNING, phba->shost,
+                            "Unrecognized opcode 0x%x in async msg \n",
+                            (ppdu->
+                            dw[offsetof(struct amap_pdu_base, opcode) / 32]
+                                               & PDUBASE_OPCODE_MASK));
+               return 1;
+       }
+
+       spin_lock_bh(&session->lock);
+       __iscsi_complete_pdu(conn, (struct iscsi_hdr *)ppdu, pbuffer, buf_len);
+       spin_unlock_bh(&session->lock);
+       return 0;
+}
+
+static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba)
+{
+       struct sgl_handle *psgl_handle;
+
+       if (phba->io_sgl_hndl_avbl) {
+               SE_DEBUG(DBG_LVL_8,
+                        "In alloc_io_sgl_handle,io_sgl_alloc_index=%d \n",
+                        phba->io_sgl_alloc_index);
+               psgl_handle = phba->io_sgl_hndl_base[phba->
+                                               io_sgl_alloc_index];
+               phba->io_sgl_hndl_base[phba->io_sgl_alloc_index] = NULL;
+               phba->io_sgl_hndl_avbl--;
+               if (phba->io_sgl_alloc_index == (phba->params.ios_per_ctrl - 1))
+                       phba->io_sgl_alloc_index = 0;
+               else
+                       phba->io_sgl_alloc_index++;
+       } else
+               psgl_handle = NULL;
+       return psgl_handle;
+}
+
+static void
+free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
+{
+       SE_DEBUG(DBG_LVL_8, "In free_,io_sgl_free_index=%d \n",
+                phba->io_sgl_free_index);
+       if (phba->io_sgl_hndl_base[phba->io_sgl_free_index]) {
+               /*
+                * this can happen if clean_task is called on a task that
+                * failed in xmit_task or alloc_pdu.
+                */
+                SE_DEBUG(DBG_LVL_8,
+                        "Double Free in IO SGL io_sgl_free_index=%d,"
+                        "value there=%p \n", phba->io_sgl_free_index,
+                        phba->io_sgl_hndl_base[phba->io_sgl_free_index]);
+               return;
+       }
+       phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle;
+       phba->io_sgl_hndl_avbl++;
+       if (phba->io_sgl_free_index == (phba->params.ios_per_ctrl - 1))
+               phba->io_sgl_free_index = 0;
+       else
+               phba->io_sgl_free_index++;
+}
+
+/**
+ * alloc_wrb_handle - To allocate a wrb handle
+ * @phba: The hba pointer
+ * @cid: The cid to use for allocation
+ * @index: index allocation and wrb index
+ *
+ * This happens under session_lock until submission to chip
+ */
+struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid,
+                                   int index)
+{
+       struct hwi_wrb_context *pwrb_context;
+       struct hwi_controller *phwi_ctrlr;
+       struct wrb_handle *pwrb_handle;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       pwrb_context = &phwi_ctrlr->wrb_context[cid];
+       pwrb_handle = pwrb_context->pwrb_handle_base[index];
+       pwrb_handle->wrb_index = index;
+       pwrb_handle->nxt_wrb_index = index;
+       return pwrb_handle;
+}
+
+/**
+ * free_wrb_handle - To free the wrb handle back to pool
+ * @phba: The hba pointer
+ * @pwrb_context: The context to free from
+ * @pwrb_handle: The wrb_handle to free
+ *
+ * This happens under session_lock until submission to chip
+ */
+static void
+free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context,
+               struct wrb_handle *pwrb_handle)
+{
+       SE_DEBUG(DBG_LVL_8,
+                "FREE WRB: pwrb_handle=%p free_index=%d=0x%x"
+                "wrb_handles_available=%d \n",
+                pwrb_handle, pwrb_context->free_index,
+                pwrb_context->free_index, pwrb_context->wrb_handles_available);
+}
+
+static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba)
+{
+       struct sgl_handle *psgl_handle;
+
+       if (phba->eh_sgl_hndl_avbl) {
+               psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index];
+               phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL;
+               SE_DEBUG(DBG_LVL_8, "mgmt_sgl_alloc_index=%d=0x%x \n",
+                        phba->eh_sgl_alloc_index, phba->eh_sgl_alloc_index);
+               phba->eh_sgl_hndl_avbl--;
+               if (phba->eh_sgl_alloc_index ==
+                   (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl -
+                    1))
+                       phba->eh_sgl_alloc_index = 0;
+               else
+                       phba->eh_sgl_alloc_index++;
+       } else
+               psgl_handle = NULL;
+       return psgl_handle;
+}
+
+void
+free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
+{
+
+       if (phba->eh_sgl_hndl_base[phba->eh_sgl_free_index]) {
+               /*
+                * this can happen if clean_task is called on a task that
+                * failed in xmit_task or alloc_pdu.
+                */
+               SE_DEBUG(DBG_LVL_8,
+                        "Double Free in eh SGL ,eh_sgl_free_index=%d \n",
+                        phba->eh_sgl_free_index);
+               return;
+       }
+       phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle;
+       phba->eh_sgl_hndl_avbl++;
+       if (phba->eh_sgl_free_index ==
+           (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 1))
+               phba->eh_sgl_free_index = 0;
+       else
+               phba->eh_sgl_free_index++;
+}
+
+static void
+be_complete_io(struct beiscsi_conn *beiscsi_conn,
+              struct iscsi_task *task, struct sol_cqe *psol)
+{
+       struct beiscsi_io_task *io_task = task->dd_data;
+       struct be_status_bhs *sts_bhs =
+                               (struct be_status_bhs *)io_task->cmd_bhs;
+       struct iscsi_conn *conn = beiscsi_conn->conn;
+       unsigned int sense_len;
+       unsigned char *sense;
+       u32 resid = 0, exp_cmdsn, max_cmdsn;
+       u8 rsp, status, flags;
+
+       exp_cmdsn = be32_to_cpu(psol->
+                       dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32]
+                       & SOL_EXP_CMD_SN_MASK);
+       max_cmdsn = be32_to_cpu((psol->
+                       dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32]
+                       & SOL_EXP_CMD_SN_MASK) +
+                       ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
+                               / 32] & SOL_CMD_WND_MASK) >> 24) - 1);
+       rsp = ((psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 32]
+                                               & SOL_RESP_MASK) >> 16);
+       status = ((psol->dw[offsetof(struct amap_sol_cqe, i_sts) / 32]
+                                               & SOL_STS_MASK) >> 8);
+       flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32]
+                                       & SOL_FLAGS_MASK) >> 24) | 0x80;
+
+       task->sc->result = (DID_OK << 16) | status;
+       if (rsp != ISCSI_STATUS_CMD_COMPLETED) {
+               task->sc->result = DID_ERROR << 16;
+               goto unmap;
+       }
+
+       /* bidi not initially supported */
+       if (flags & (ISCSI_FLAG_CMD_UNDERFLOW | ISCSI_FLAG_CMD_OVERFLOW)) {
+               resid = (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) /
+                               32] & SOL_RES_CNT_MASK);
+
+               if (!status && (flags & ISCSI_FLAG_CMD_OVERFLOW))
+                       task->sc->result = DID_ERROR << 16;
+
+               if (flags & ISCSI_FLAG_CMD_UNDERFLOW) {
+                       scsi_set_resid(task->sc, resid);
+                       if (!status && (scsi_bufflen(task->sc) - resid <
+                           task->sc->underflow))
+                               task->sc->result = DID_ERROR << 16;
+               }
+       }
+
+       if (status == SAM_STAT_CHECK_CONDITION) {
+               sense = sts_bhs->sense_info + sizeof(unsigned short);
+               sense_len =
+                   cpu_to_be16((unsigned short)(sts_bhs->sense_info[0]));
+               memcpy(task->sc->sense_buffer, sense,
+                      min_t(u16, sense_len, SCSI_SENSE_BUFFERSIZE));
+       }
+       if (io_task->cmd_bhs->iscsi_hdr.flags & ISCSI_FLAG_CMD_READ) {
+               if (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32]
+                                                       & SOL_RES_CNT_MASK)
+                        conn->rxdata_octets += (psol->
+                             dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32]
+                                                       & SOL_RES_CNT_MASK);
+       }
+unmap:
+       scsi_dma_unmap(io_task->scsi_cmnd);
+       iscsi_complete_scsi_task(task, exp_cmdsn, max_cmdsn);
+}
+
+static void
+be_complete_logout(struct beiscsi_conn *beiscsi_conn,
+                  struct iscsi_task *task, struct sol_cqe *psol)
+{
+       struct iscsi_logout_rsp *hdr;
+       struct iscsi_conn *conn = beiscsi_conn->conn;
+
+       hdr = (struct iscsi_logout_rsp *)task->hdr;
+       hdr->t2wait = 5;
+       hdr->t2retain = 0;
+       hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32]
+                                       & SOL_FLAGS_MASK) >> 24) | 0x80;
+       hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) /
+                                       32] & SOL_RESP_MASK);
+       hdr->exp_cmdsn = cpu_to_be32(psol->
+                       dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32]
+                                       & SOL_EXP_CMD_SN_MASK);
+       hdr->max_cmdsn = be32_to_cpu((psol->
+                        dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32]
+                                       & SOL_EXP_CMD_SN_MASK) +
+                       ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
+                                       / 32] & SOL_CMD_WND_MASK) >> 24) - 1);
+       hdr->hlength = 0;
+
+       __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
+}
+
+static void
+be_complete_tmf(struct beiscsi_conn *beiscsi_conn,
+               struct iscsi_task *task, struct sol_cqe *psol)
+{
+       struct iscsi_tm_rsp *hdr;
+       struct iscsi_conn *conn = beiscsi_conn->conn;
+
+       hdr = (struct iscsi_tm_rsp *)task->hdr;
+       hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32]
+                                       & SOL_FLAGS_MASK) >> 24) | 0x80;
+       hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) /
+                                       32] & SOL_RESP_MASK);
+       hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe,
+                                    i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK);
+       hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe,
+                       i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) +
+                       ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
+                       / 32] & SOL_CMD_WND_MASK) >> 24) - 1);
+       __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
+}
+
+static void
+hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn,
+                      struct beiscsi_hba *phba, struct sol_cqe *psol)
+{
+       struct hwi_wrb_context *pwrb_context;
+       struct wrb_handle *pwrb_handle;
+       struct hwi_controller *phwi_ctrlr;
+       struct iscsi_conn *conn = beiscsi_conn->conn;
+       struct iscsi_session *session = conn->session;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       pwrb_context = &phwi_ctrlr->wrb_context[((psol->
+                               dw[offsetof(struct amap_sol_cqe, cid) / 32] &
+                               SOL_CID_MASK) >> 6)];
+       pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol->
+                               dw[offsetof(struct amap_sol_cqe, wrb_index) /
+                               32] & SOL_WRB_INDEX_MASK) >> 16)];
+       spin_lock_bh(&session->lock);
+       free_wrb_handle(phba, pwrb_context, pwrb_handle);
+       spin_unlock_bh(&session->lock);
+}
+
+static void
+be_complete_nopin_resp(struct beiscsi_conn *beiscsi_conn,
+                      struct iscsi_task *task, struct sol_cqe *psol)
+{
+       struct iscsi_nopin *hdr;
+       struct iscsi_conn *conn = beiscsi_conn->conn;
+
+       hdr = (struct iscsi_nopin *)task->hdr;
+       hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32]
+                       & SOL_FLAGS_MASK) >> 24) | 0x80;
+       hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe,
+                                    i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK);
+       hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe,
+                       i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) +
+                       ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
+                       / 32] & SOL_CMD_WND_MASK) >> 24) - 1);
+       hdr->opcode = ISCSI_OP_NOOP_IN;
+       __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
+}
+
+static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn,
+                            struct beiscsi_hba *phba, struct sol_cqe *psol)
+{
+       struct hwi_wrb_context *pwrb_context;
+       struct wrb_handle *pwrb_handle;
+       struct iscsi_wrb *pwrb = NULL;
+       struct hwi_controller *phwi_ctrlr;
+       struct iscsi_task *task;
+       struct beiscsi_io_task *io_task;
+       struct iscsi_conn *conn = beiscsi_conn->conn;
+       struct iscsi_session *session = conn->session;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+
+       pwrb_context = &phwi_ctrlr->
+               wrb_context[((psol->dw[offsetof(struct amap_sol_cqe, cid) / 32]
+               & SOL_CID_MASK) >> 6)];
+       pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol->
+                               dw[offsetof(struct amap_sol_cqe, wrb_index) /
+                               32] & SOL_WRB_INDEX_MASK) >> 16)];
+
+       task = pwrb_handle->pio_handle;
+       io_task = task->dd_data;
+       spin_lock_bh(&session->lock);
+       pwrb = pwrb_handle->pwrb;
+       switch ((pwrb->dw[offsetof(struct amap_iscsi_wrb, type) / 32] &
+                WRB_TYPE_MASK) >> 28) {
+       case HWH_TYPE_IO:
+       case HWH_TYPE_IO_RD:
+               if ((task->hdr->opcode & ISCSI_OPCODE_MASK) ==
+                   ISCSI_OP_NOOP_OUT) {
+                       be_complete_nopin_resp(beiscsi_conn, task, psol);
+               } else
+                       be_complete_io(beiscsi_conn, task, psol);
+               break;
+
+       case HWH_TYPE_LOGOUT:
+               be_complete_logout(beiscsi_conn, task, psol);
+               break;
+
+       case HWH_TYPE_LOGIN:
+               SE_DEBUG(DBG_LVL_1,
+                        "\t\t No HWH_TYPE_LOGIN Expected in hwi_complete_cmd"
+                        "- Solicited path \n");
+               break;
+
+       case HWH_TYPE_TMF:
+               be_complete_tmf(beiscsi_conn, task, psol);
+               break;
+
+       case HWH_TYPE_NOP:
+               be_complete_nopin_resp(beiscsi_conn, task, psol);
+               break;
+
+       default:
+               shost_printk(KERN_WARNING, phba->shost,
+                           "wrb_index 0x%x CID 0x%x\n",
+                           ((psol->dw[offsetof(struct amap_iscsi_wrb, type) /
+                                       32] & SOL_WRB_INDEX_MASK) >> 16),
+                           ((psol->dw[offsetof(struct amap_sol_cqe, cid) / 32]
+                                       & SOL_CID_MASK) >> 6));
+               break;
+       }
+
+       spin_unlock_bh(&session->lock);
+}
+
+static struct list_head *hwi_get_async_busy_list(struct hwi_async_pdu_context
+                                         *pasync_ctx, unsigned int is_header,
+                                         unsigned int host_write_ptr)
+{
+       if (is_header)
+               return &pasync_ctx->async_entry[host_write_ptr].
+                   header_busy_list;
+       else
+               return &pasync_ctx->async_entry[host_write_ptr].data_busy_list;
+}
+
+static struct async_pdu_handle *
+hwi_get_async_handle(struct beiscsi_hba *phba,
+                    struct beiscsi_conn *beiscsi_conn,
+                    struct hwi_async_pdu_context *pasync_ctx,
+                    struct i_t_dpdu_cqe *pdpdu_cqe, unsigned int *pcq_index)
+{
+       struct be_bus_address phys_addr;
+       struct list_head *pbusy_list;
+       struct async_pdu_handle *pasync_handle = NULL;
+       int buffer_len = 0;
+       unsigned char buffer_index = -1;
+       unsigned char is_header = 0;
+
+       phys_addr.u.a32.address_lo =
+           pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_lo) / 32] -
+           ((pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32]
+                                               & PDUCQE_DPL_MASK) >> 16);
+       phys_addr.u.a32.address_hi =
+           pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_hi) / 32];
+
+       phys_addr.u.a64.address =
+                       *((unsigned long long *)(&phys_addr.u.a64.address));
+
+       switch (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, code) / 32]
+                       & PDUCQE_CODE_MASK) {
+       case UNSOL_HDR_NOTIFY:
+               is_header = 1;
+
+               pbusy_list = hwi_get_async_busy_list(pasync_ctx, 1,
+                       (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
+                       index) / 32] & PDUCQE_INDEX_MASK));
+
+               buffer_len = (unsigned int)(phys_addr.u.a64.address -
+                               pasync_ctx->async_header.pa_base.u.a64.address);
+
+               buffer_index = buffer_len /
+                               pasync_ctx->async_header.buffer_size;
+
+               break;
+       case UNSOL_DATA_NOTIFY:
+               pbusy_list = hwi_get_async_busy_list(pasync_ctx, 0, (pdpdu_cqe->
+                                       dw[offsetof(struct amap_i_t_dpdu_cqe,
+                                       index) / 32] & PDUCQE_INDEX_MASK));
+               buffer_len = (unsigned long)(phys_addr.u.a64.address -
+                                       pasync_ctx->async_data.pa_base.u.
+                                       a64.address);
+               buffer_index = buffer_len / pasync_ctx->async_data.buffer_size;
+               break;
+       default:
+               pbusy_list = NULL;
+               shost_printk(KERN_WARNING, phba->shost,
+                       "Unexpected code=%d \n",
+                        pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
+                                       code) / 32] & PDUCQE_CODE_MASK);
+               return NULL;
+       }
+
+       WARN_ON(!(buffer_index <= pasync_ctx->async_data.num_entries));
+       WARN_ON(list_empty(pbusy_list));
+       list_for_each_entry(pasync_handle, pbusy_list, link) {
+               WARN_ON(pasync_handle->consumed);
+               if (pasync_handle->index == buffer_index)
+                       break;
+       }
+
+       WARN_ON(!pasync_handle);
+
+       pasync_handle->cri = (unsigned short)beiscsi_conn->beiscsi_conn_cid;
+       pasync_handle->is_header = is_header;
+       pasync_handle->buffer_len = ((pdpdu_cqe->
+                       dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32]
+                       & PDUCQE_DPL_MASK) >> 16);
+
+       *pcq_index = (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
+                       index) / 32] & PDUCQE_INDEX_MASK);
+       return pasync_handle;
+}
+
+static unsigned int
+hwi_update_async_writables(struct hwi_async_pdu_context *pasync_ctx,
+                          unsigned int is_header, unsigned int cq_index)
+{
+       struct list_head *pbusy_list;
+       struct async_pdu_handle *pasync_handle;
+       unsigned int num_entries, writables = 0;
+       unsigned int *pep_read_ptr, *pwritables;
+
+
+       if (is_header) {
+               pep_read_ptr = &pasync_ctx->async_header.ep_read_ptr;
+               pwritables = &pasync_ctx->async_header.writables;
+               num_entries = pasync_ctx->async_header.num_entries;
+       } else {
+               pep_read_ptr = &pasync_ctx->async_data.ep_read_ptr;
+               pwritables = &pasync_ctx->async_data.writables;
+               num_entries = pasync_ctx->async_data.num_entries;
+       }
+
+       while ((*pep_read_ptr) != cq_index) {
+               (*pep_read_ptr)++;
+               *pep_read_ptr = (*pep_read_ptr) % num_entries;
+
+               pbusy_list = hwi_get_async_busy_list(pasync_ctx, is_header,
+                                                    *pep_read_ptr);
+               if (writables == 0)
+                       WARN_ON(list_empty(pbusy_list));
+
+               if (!list_empty(pbusy_list)) {
+                       pasync_handle = list_entry(pbusy_list->next,
+                                                  struct async_pdu_handle,
+                                                  link);
+                       WARN_ON(!pasync_handle);
+                       pasync_handle->consumed = 1;
+               }
+
+               writables++;
+       }
+
+       if (!writables) {
+               SE_DEBUG(DBG_LVL_1,
+                        "Duplicate notification received - index 0x%x!!\n",
+                        cq_index);
+               WARN_ON(1);
+       }
+
+       *pwritables = *pwritables + writables;
+       return 0;
+}
+
+static unsigned int hwi_free_async_msg(struct beiscsi_hba *phba,
+                                      unsigned int cri)
+{
+       struct hwi_controller *phwi_ctrlr;
+       struct hwi_async_pdu_context *pasync_ctx;
+       struct async_pdu_handle *pasync_handle, *tmp_handle;
+       struct list_head *plist;
+       unsigned int i = 0;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
+
+       plist  = &pasync_ctx->async_entry[cri].wait_queue.list;
+
+       list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link) {
+               list_del(&pasync_handle->link);
+
+               if (i == 0) {
+                       list_add_tail(&pasync_handle->link,
+                                     &pasync_ctx->async_header.free_list);
+                       pasync_ctx->async_header.free_entries++;
+                       i++;
+               } else {
+                       list_add_tail(&pasync_handle->link,
+                                     &pasync_ctx->async_data.free_list);
+                       pasync_ctx->async_data.free_entries++;
+                       i++;
+               }
+       }
+
+       INIT_LIST_HEAD(&pasync_ctx->async_entry[cri].wait_queue.list);
+       pasync_ctx->async_entry[cri].wait_queue.hdr_received = 0;
+       pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0;
+       return 0;
+}
+
+static struct phys_addr *
+hwi_get_ring_address(struct hwi_async_pdu_context *pasync_ctx,
+                    unsigned int is_header, unsigned int host_write_ptr)
+{
+       struct phys_addr *pasync_sge = NULL;
+
+       if (is_header)
+               pasync_sge = pasync_ctx->async_header.ring_base;
+       else
+               pasync_sge = pasync_ctx->async_data.ring_base;
+
+       return pasync_sge + host_write_ptr;
+}
+
+static void hwi_post_async_buffers(struct beiscsi_hba *phba,
+                                  unsigned int is_header)
+{
+       struct hwi_controller *phwi_ctrlr;
+       struct hwi_async_pdu_context *pasync_ctx;
+       struct async_pdu_handle *pasync_handle;
+       struct list_head *pfree_link, *pbusy_list;
+       struct phys_addr *pasync_sge;
+       unsigned int ring_id, num_entries;
+       unsigned int host_write_num;
+       unsigned int writables;
+       unsigned int i = 0;
+       u32 doorbell = 0;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
+
+       if (is_header) {
+               num_entries = pasync_ctx->async_header.num_entries;
+               writables = min(pasync_ctx->async_header.writables,
+                               pasync_ctx->async_header.free_entries);
+               pfree_link = pasync_ctx->async_header.free_list.next;
+               host_write_num = pasync_ctx->async_header.host_write_ptr;
+               ring_id = phwi_ctrlr->default_pdu_hdr.id;
+       } else {
+               num_entries = pasync_ctx->async_data.num_entries;
+               writables = min(pasync_ctx->async_data.writables,
+                               pasync_ctx->async_data.free_entries);
+               pfree_link = pasync_ctx->async_data.free_list.next;
+               host_write_num = pasync_ctx->async_data.host_write_ptr;
+               ring_id = phwi_ctrlr->default_pdu_data.id;
+       }
+
+       writables = (writables / 8) * 8;
+       if (writables) {
+               for (i = 0; i < writables; i++) {
+                       pbusy_list =
+                           hwi_get_async_busy_list(pasync_ctx, is_header,
+                                                   host_write_num);
+                       pasync_handle =
+                           list_entry(pfree_link, struct async_pdu_handle,
+                                                               link);
+                       WARN_ON(!pasync_handle);
+                       pasync_handle->consumed = 0;
+
+                       pfree_link = pfree_link->next;
+
+                       pasync_sge = hwi_get_ring_address(pasync_ctx,
+                                               is_header, host_write_num);
+
+                       pasync_sge->hi = pasync_handle->pa.u.a32.address_lo;
+                       pasync_sge->lo = pasync_handle->pa.u.a32.address_hi;
+
+                       list_move(&pasync_handle->link, pbusy_list);
+
+                       host_write_num++;
+                       host_write_num = host_write_num % num_entries;
+               }
+
+               if (is_header) {
+                       pasync_ctx->async_header.host_write_ptr =
+                                                       host_write_num;
+                       pasync_ctx->async_header.free_entries -= writables;
+                       pasync_ctx->async_header.writables -= writables;
+                       pasync_ctx->async_header.busy_entries += writables;
+               } else {
+                       pasync_ctx->async_data.host_write_ptr = host_write_num;
+                       pasync_ctx->async_data.free_entries -= writables;
+                       pasync_ctx->async_data.writables -= writables;
+                       pasync_ctx->async_data.busy_entries += writables;
+               }
+
+               doorbell |= ring_id & DB_DEF_PDU_RING_ID_MASK;
+               doorbell |= 1 << DB_DEF_PDU_REARM_SHIFT;
+               doorbell |= 0 << DB_DEF_PDU_EVENT_SHIFT;
+               doorbell |= (writables & DB_DEF_PDU_CQPROC_MASK)
+                                       << DB_DEF_PDU_CQPROC_SHIFT;
+
+               iowrite32(doorbell, phba->db_va + DB_RXULP0_OFFSET);
+       }
+}
+
+static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba,
+                                        struct beiscsi_conn *beiscsi_conn,
+                                        struct i_t_dpdu_cqe *pdpdu_cqe)
+{
+       struct hwi_controller *phwi_ctrlr;
+       struct hwi_async_pdu_context *pasync_ctx;
+       struct async_pdu_handle *pasync_handle = NULL;
+       unsigned int cq_index = -1;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
+
+       pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx,
+                                            pdpdu_cqe, &cq_index);
+       BUG_ON(pasync_handle->is_header != 0);
+       if (pasync_handle->consumed == 0)
+               hwi_update_async_writables(pasync_ctx, pasync_handle->is_header,
+                                          cq_index);
+
+       hwi_free_async_msg(phba, pasync_handle->cri);
+       hwi_post_async_buffers(phba, pasync_handle->is_header);
+}
+
+static unsigned int
+hwi_fwd_async_msg(struct beiscsi_conn *beiscsi_conn,
+                 struct beiscsi_hba *phba,
+                 struct hwi_async_pdu_context *pasync_ctx, unsigned short cri)
+{
+       struct list_head *plist;
+       struct async_pdu_handle *pasync_handle;
+       void *phdr = NULL;
+       unsigned int hdr_len = 0, buf_len = 0;
+       unsigned int status, index = 0, offset = 0;
+       void *pfirst_buffer = NULL;
+       unsigned int num_buf = 0;
+
+       plist = &pasync_ctx->async_entry[cri].wait_queue.list;
+
+       list_for_each_entry(pasync_handle, plist, link) {
+               if (index == 0) {
+                       phdr = pasync_handle->pbuffer;
+                       hdr_len = pasync_handle->buffer_len;
+               } else {
+                       buf_len = pasync_handle->buffer_len;
+                       if (!num_buf) {
+                               pfirst_buffer = pasync_handle->pbuffer;
+                               num_buf++;
+                       }
+                       memcpy(pfirst_buffer + offset,
+                              pasync_handle->pbuffer, buf_len);
+                       offset = buf_len;
+               }
+               index++;
+       }
+
+       status = beiscsi_process_async_pdu(beiscsi_conn, phba,
+                                          beiscsi_conn->beiscsi_conn_cid,
+                                          phdr, hdr_len, pfirst_buffer,
+                                          buf_len);
+
+       if (status == 0)
+               hwi_free_async_msg(phba, cri);
+       return 0;
+}
+
+static unsigned int
+hwi_gather_async_pdu(struct beiscsi_conn *beiscsi_conn,
+                    struct beiscsi_hba *phba,
+                    struct async_pdu_handle *pasync_handle)
+{
+       struct hwi_async_pdu_context *pasync_ctx;
+       struct hwi_controller *phwi_ctrlr;
+       unsigned int bytes_needed = 0, status = 0;
+       unsigned short cri = pasync_handle->cri;
+       struct pdu_base *ppdu;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
+
+       list_del(&pasync_handle->link);
+       if (pasync_handle->is_header) {
+               pasync_ctx->async_header.busy_entries--;
+               if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) {
+                       hwi_free_async_msg(phba, cri);
+                       BUG();
+               }
+
+               pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0;
+               pasync_ctx->async_entry[cri].wait_queue.hdr_received = 1;
+               pasync_ctx->async_entry[cri].wait_queue.hdr_len =
+                               (unsigned short)pasync_handle->buffer_len;
+               list_add_tail(&pasync_handle->link,
+                             &pasync_ctx->async_entry[cri].wait_queue.list);
+
+               ppdu = pasync_handle->pbuffer;
+               bytes_needed = ((((ppdu->dw[offsetof(struct amap_pdu_base,
+                       data_len_hi) / 32] & PDUBASE_DATALENHI_MASK) << 8) &
+                       0xFFFF0000) | ((be16_to_cpu((ppdu->
+                       dw[offsetof(struct amap_pdu_base, data_len_lo) / 32]
+                       & PDUBASE_DATALENLO_MASK) >> 16)) & 0x0000FFFF));
+
+               if (status == 0) {
+                       pasync_ctx->async_entry[cri].wait_queue.bytes_needed =
+                           bytes_needed;
+
+                       if (bytes_needed == 0)
+                               status = hwi_fwd_async_msg(beiscsi_conn, phba,
+                                                          pasync_ctx, cri);
+               }
+       } else {
+               pasync_ctx->async_data.busy_entries--;
+               if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) {
+                       list_add_tail(&pasync_handle->link,
+                                     &pasync_ctx->async_entry[cri].wait_queue.
+                                     list);
+                       pasync_ctx->async_entry[cri].wait_queue.
+                               bytes_received +=
+                               (unsigned short)pasync_handle->buffer_len;
+
+                       if (pasync_ctx->async_entry[cri].wait_queue.
+                           bytes_received >=
+                           pasync_ctx->async_entry[cri].wait_queue.
+                           bytes_needed)
+                               status = hwi_fwd_async_msg(beiscsi_conn, phba,
+                                                          pasync_ctx, cri);
+               }
+       }
+       return status;
+}
+
+static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn,
+                                        struct beiscsi_hba *phba,
+                                        struct i_t_dpdu_cqe *pdpdu_cqe)
+{
+       struct hwi_controller *phwi_ctrlr;
+       struct hwi_async_pdu_context *pasync_ctx;
+       struct async_pdu_handle *pasync_handle = NULL;
+       unsigned int cq_index = -1;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
+       pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx,
+                                            pdpdu_cqe, &cq_index);
+
+       if (pasync_handle->consumed == 0)
+               hwi_update_async_writables(pasync_ctx, pasync_handle->is_header,
+                                          cq_index);
+       hwi_gather_async_pdu(beiscsi_conn, phba, pasync_handle);
+       hwi_post_async_buffers(phba, pasync_handle->is_header);
+}
+
+static unsigned int beiscsi_process_cq(struct beiscsi_hba *phba)
+{
+       struct hwi_controller *phwi_ctrlr;
+       struct hwi_context_memory *phwi_context;
+       struct be_queue_info *cq;
+       struct sol_cqe *sol;
+       struct dmsg_cqe *dmsg;
+       unsigned int num_processed = 0;
+       unsigned int tot_nump = 0;
+       struct beiscsi_conn *beiscsi_conn;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       phwi_context = phwi_ctrlr->phwi_ctxt;
+       cq = &phwi_context->be_cq;
+       sol = queue_tail_node(cq);
+
+       while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] &
+              CQE_VALID_MASK) {
+               be_dws_le_to_cpu(sol, sizeof(struct sol_cqe));
+
+               beiscsi_conn = phba->conn_table[(u32) (sol->
+                                dw[offsetof(struct amap_sol_cqe, cid) / 32] &
+                                SOL_CID_MASK) >> 6];
+
+               if (!beiscsi_conn || !beiscsi_conn->ep) {
+                       shost_printk(KERN_WARNING, phba->shost,
+                                    "Connection table empty for cid = %d\n",
+                                    (u32)(sol->dw[offsetof(struct amap_sol_cqe,
+                                    cid) / 32] & SOL_CID_MASK) >> 6);
+                       return 0;
+               }
+
+               if (num_processed >= 32) {
+                       hwi_ring_cq_db(phba, phwi_context->be_cq.id,
+                                       num_processed, 0, 0);
+                       tot_nump += num_processed;
+                       num_processed = 0;
+               }
+
+               switch ((u32) sol->dw[offsetof(struct amap_sol_cqe, code) /
+                       32] & CQE_CODE_MASK) {
+               case SOL_CMD_COMPLETE:
+                       hwi_complete_cmd(beiscsi_conn, phba, sol);
+                       break;
+               case DRIVERMSG_NOTIFY:
+                       SE_DEBUG(DBG_LVL_8, "Received DRIVERMSG_NOTIFY \n");
+                       dmsg = (struct dmsg_cqe *)sol;
+                       hwi_complete_drvr_msgs(beiscsi_conn, phba, sol);
+                       break;
+               case UNSOL_HDR_NOTIFY:
+               case UNSOL_DATA_NOTIFY:
+                       SE_DEBUG(DBG_LVL_8, "Received UNSOL_HDR/DATA_NOTIFY\n");
+                       hwi_process_default_pdu_ring(beiscsi_conn, phba,
+                                            (struct i_t_dpdu_cqe *)sol);
+                       break;
+               case CXN_INVALIDATE_INDEX_NOTIFY:
+               case CMD_INVALIDATED_NOTIFY:
+               case CXN_INVALIDATE_NOTIFY:
+                       SE_DEBUG(DBG_LVL_1,
+                                "Ignoring CQ Error notification for cmd/cxn"
+                                "invalidate\n");
+                       break;
+               case SOL_CMD_KILLED_DATA_DIGEST_ERR:
+               case CMD_KILLED_INVALID_STATSN_RCVD:
+               case CMD_KILLED_INVALID_R2T_RCVD:
+               case CMD_CXN_KILLED_LUN_INVALID:
+               case CMD_CXN_KILLED_ICD_INVALID:
+               case CMD_CXN_KILLED_ITT_INVALID:
+               case CMD_CXN_KILLED_SEQ_OUTOFORDER:
+               case CMD_CXN_KILLED_INVALID_DATASN_RCVD:
+                       SE_DEBUG(DBG_LVL_1,
+                                "CQ Error notification for cmd.. "
+                                "code %d cid 0x%x\n",
+                                sol->dw[offsetof(struct amap_sol_cqe, code) /
+                                32] & CQE_CODE_MASK,
+                                (sol->dw[offsetof(struct amap_sol_cqe, cid) /
+                                32] & SOL_CID_MASK));
+                       break;
+               case UNSOL_DATA_DIGEST_ERROR_NOTIFY:
+                       SE_DEBUG(DBG_LVL_1,
+                                "Digest error on def pdu ring, dropping..\n");
+                       hwi_flush_default_pdu_buffer(phba, beiscsi_conn,
+                                            (struct i_t_dpdu_cqe *) sol);
+                       break;
+               case CXN_KILLED_PDU_SIZE_EXCEEDS_DSL:
+               case CXN_KILLED_BURST_LEN_MISMATCH:
+               case CXN_KILLED_AHS_RCVD:
+               case CXN_KILLED_HDR_DIGEST_ERR:
+               case CXN_KILLED_UNKNOWN_HDR:
+               case CXN_KILLED_STALE_ITT_TTT_RCVD:
+               case CXN_KILLED_INVALID_ITT_TTT_RCVD:
+               case CXN_KILLED_TIMED_OUT:
+               case CXN_KILLED_FIN_RCVD:
+               case CXN_KILLED_BAD_UNSOL_PDU_RCVD:
+               case CXN_KILLED_BAD_WRB_INDEX_ERROR:
+               case CXN_KILLED_OVER_RUN_RESIDUAL:
+               case CXN_KILLED_UNDER_RUN_RESIDUAL:
+               case CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN:
+                       SE_DEBUG(DBG_LVL_1, "CQ Error %d, resetting CID "
+                                "0x%x...\n",
+                                sol->dw[offsetof(struct amap_sol_cqe, code) /
+                                32] & CQE_CODE_MASK,
+                                sol->dw[offsetof(struct amap_sol_cqe, cid) /
+                                32] & CQE_CID_MASK);
+                       iscsi_conn_failure(beiscsi_conn->conn,
+                                          ISCSI_ERR_CONN_FAILED);
+                       break;
+               case CXN_KILLED_RST_SENT:
+               case CXN_KILLED_RST_RCVD:
+                       SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset received/sent "
+                                "on CID 0x%x...\n",
+                                sol->dw[offsetof(struct amap_sol_cqe, code) /
+                                32] & CQE_CODE_MASK,
+                                sol->dw[offsetof(struct amap_sol_cqe, cid) /
+                                32] & CQE_CID_MASK);
+                       iscsi_conn_failure(beiscsi_conn->conn,
+                                          ISCSI_ERR_CONN_FAILED);
+                       break;
+               default:
+                       SE_DEBUG(DBG_LVL_1, "CQ Error Invalid code= %d "
+                                "received on CID 0x%x...\n",
+                                sol->dw[offsetof(struct amap_sol_cqe, code) /
+                                32] & CQE_CODE_MASK,
+                                sol->dw[offsetof(struct amap_sol_cqe, cid) /
+                                32] & CQE_CID_MASK);
+                       break;
+               }
+
+               AMAP_SET_BITS(struct amap_sol_cqe, valid, sol, 0);
+               queue_tail_inc(cq);
+               sol = queue_tail_node(cq);
+               num_processed++;
+       }
+
+       if (num_processed > 0) {
+               tot_nump += num_processed;
+               hwi_ring_cq_db(phba, phwi_context->be_cq.id, num_processed,
+                              1, 0);
+       }
+       return tot_nump;
+}
+
+static void beiscsi_process_all_cqs(struct work_struct *work)
+{
+       unsigned long flags;
+       struct beiscsi_hba *phba =
+           container_of(work, struct beiscsi_hba, work_cqs);
+
+       if (phba->todo_mcc_cq) {
+               spin_lock_irqsave(&phba->isr_lock, flags);
+               phba->todo_mcc_cq = 0;
+               spin_unlock_irqrestore(&phba->isr_lock, flags);
+               SE_DEBUG(DBG_LVL_1, "MCC Interrupt Not expected \n");
+       }
+
+       if (phba->todo_cq) {
+               spin_lock_irqsave(&phba->isr_lock, flags);
+               phba->todo_cq = 0;
+               spin_unlock_irqrestore(&phba->isr_lock, flags);
+               beiscsi_process_cq(phba);
+       }
+}
+
+static int be_iopoll(struct blk_iopoll *iop, int budget)
+{
+       static unsigned int ret;
+       struct beiscsi_hba *phba;
+
+       phba = container_of(iop, struct beiscsi_hba, iopoll);
+
+       ret = beiscsi_process_cq(phba);
+       if (ret < budget) {
+               struct hwi_controller *phwi_ctrlr;
+               struct hwi_context_memory *phwi_context;
+
+               phwi_ctrlr = phba->phwi_ctrlr;
+               phwi_context = phwi_ctrlr->phwi_ctxt;
+               blk_iopoll_complete(iop);
+               hwi_ring_eq_db(phba, phwi_context->be_eq.q.id, 0,
+                                                       0, 1, 1);
+       }
+       return ret;
+}
+
+static void
+hwi_write_sgl(struct iscsi_wrb *pwrb, struct scatterlist *sg,
+             unsigned int num_sg, struct beiscsi_io_task *io_task)
+{
+       struct iscsi_sge *psgl;
+       unsigned short sg_len, index;
+       unsigned int sge_len = 0;
+       unsigned long long addr;
+       struct scatterlist *l_sg;
+       unsigned int offset;
+
+       AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb,
+                                     io_task->bhs_pa.u.a32.address_lo);
+       AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb,
+                                     io_task->bhs_pa.u.a32.address_hi);
+
+       l_sg = sg;
+       for (index = 0; (index < num_sg) && (index < 2); index++, sg_next(sg)) {
+               if (index == 0) {
+                       sg_len = sg_dma_len(sg);
+                       addr = (u64) sg_dma_address(sg);
+                       AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb,
+                                                       (addr & 0xFFFFFFFF));
+                       AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb,
+                                                       (addr >> 32));
+                       AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb,
+                                                       sg_len);
+                       sge_len = sg_len;
+                       AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb,
+                                                       1);
+               } else {
+                       AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb,
+                                                       0);
+                       AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_r2t_offset,
+                                                       pwrb, sge_len);
+                       sg_len = sg_dma_len(sg);
+                       addr = (u64) sg_dma_address(sg);
+                       AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_lo, pwrb,
+                                                       (addr & 0xFFFFFFFF));
+                       AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_hi, pwrb,
+                                                       (addr >> 32));
+                       AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_len, pwrb,
+                                                       sg_len);
+               }
+       }
+       psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag;
+       memset(psgl, 0, sizeof(*psgl) * BE2_SGE);
+
+       AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2);
+
+       AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
+                       io_task->bhs_pa.u.a32.address_hi);
+       AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
+                       io_task->bhs_pa.u.a32.address_lo);
+
+       if (num_sg == 2)
+               AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 1);
+       sg = l_sg;
+       psgl++;
+       psgl++;
+       offset = 0;
+       for (index = 0; index < num_sg; index++, sg_next(sg), psgl++) {
+               sg_len = sg_dma_len(sg);
+               addr = (u64) sg_dma_address(sg);
+               AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
+                                               (addr & 0xFFFFFFFF));
+               AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
+                                               (addr >> 32));
+               AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len);
+               AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset);
+               AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0);
+               offset += sg_len;
+       }
+       psgl--;
+       AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
+}
+
+static void hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task)
+{
+       struct iscsi_sge *psgl;
+       unsigned long long addr;
+       struct beiscsi_io_task *io_task = task->dd_data;
+       struct beiscsi_conn *beiscsi_conn = io_task->conn;
+       struct beiscsi_hba *phba = beiscsi_conn->phba;
+
+       io_task->bhs_len = sizeof(struct be_nonio_bhs) - 2;
+       AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb,
+                               io_task->bhs_pa.u.a32.address_lo);
+       AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb,
+                               io_task->bhs_pa.u.a32.address_hi);
+
+       if (task->data) {
+               if (task->data_count) {
+                       AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1);
+                       addr = (u64) pci_map_single(phba->pcidev,
+                                                   task->data,
+                                                   task->data_count, 1);
+               } else {
+                       AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
+                       addr = 0;
+               }
+               AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb,
+                                               (addr & 0xFFFFFFFF));
+               AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb,
+                                               (addr >> 32));
+               AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb,
+                                               task->data_count);
+
+               AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1);
+       } else {
+               AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
+               addr = 0;
+       }
+
+       psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag;
+
+       AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len);
+
+       AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
+                     io_task->bhs_pa.u.a32.address_hi);
+       AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
+                     io_task->bhs_pa.u.a32.address_lo);
+       if (task->data) {
+               psgl++;
+               AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 0);
+               AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 0);
+               AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0);
+               AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, 0);
+               AMAP_SET_BITS(struct amap_iscsi_sge, rsvd0, psgl, 0);
+               AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0);
+
+               psgl++;
+               if (task->data) {
+                       AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
+                                               (addr & 0xFFFFFFFF));
+                       AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
+                                               (addr >> 32));
+               }
+               AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0x106);
+       }
+       AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
+}
+
+static void beiscsi_find_mem_req(struct beiscsi_hba *phba)
+{
+       unsigned int num_cq_pages, num_eq_pages, num_async_pdu_buf_pages;
+       unsigned int num_async_pdu_data_pages, wrb_sz_per_cxn;
+       unsigned int num_async_pdu_buf_sgl_pages, num_async_pdu_data_sgl_pages;
+
+       num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \
+                                     sizeof(struct sol_cqe));
+       num_eq_pages = PAGES_REQUIRED(phba->params.num_eq_entries * \
+                                     sizeof(struct be_eq_entry));
+       num_async_pdu_buf_pages =
+                       PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
+                                      phba->params.defpdu_hdr_sz);
+       num_async_pdu_buf_sgl_pages =
+                       PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
+                                      sizeof(struct phys_addr));
+       num_async_pdu_data_pages =
+                       PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
+                                      phba->params.defpdu_data_sz);
+       num_async_pdu_data_sgl_pages =
+                       PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
+                                      sizeof(struct phys_addr));
+
+       phba->params.hwi_ws_sz = sizeof(struct hwi_controller);
+
+       phba->mem_req[ISCSI_MEM_GLOBAL_HEADER] = 2 *
+                                                BE_ISCSI_PDU_HEADER_SIZE;
+       phba->mem_req[HWI_MEM_ADDN_CONTEXT] =
+                                           sizeof(struct hwi_context_memory);
+
+       phba->mem_req[HWI_MEM_CQ] = num_cq_pages * PAGE_SIZE;
+       phba->mem_req[HWI_MEM_EQ] = num_eq_pages * PAGE_SIZE;
+
+       phba->mem_req[HWI_MEM_WRB] = sizeof(struct iscsi_wrb)
+           * (phba->params.wrbs_per_cxn)
+           * phba->params.cxns_per_ctrl;
+       wrb_sz_per_cxn =  sizeof(struct wrb_handle) *
+                                (phba->params.wrbs_per_cxn);
+       phba->mem_req[HWI_MEM_WRBH] = roundup_pow_of_two((wrb_sz_per_cxn) *
+                               phba->params.cxns_per_ctrl);
+
+       phba->mem_req[HWI_MEM_SGLH] = sizeof(struct sgl_handle) *
+               phba->params.icds_per_ctrl;
+       phba->mem_req[HWI_MEM_SGE] = sizeof(struct iscsi_sge) *
+               phba->params.num_sge_per_io * phba->params.icds_per_ctrl;
+
+       phba->mem_req[HWI_MEM_ASYNC_HEADER_BUF] =
+               num_async_pdu_buf_pages * PAGE_SIZE;
+       phba->mem_req[HWI_MEM_ASYNC_DATA_BUF] =
+               num_async_pdu_data_pages * PAGE_SIZE;
+       phba->mem_req[HWI_MEM_ASYNC_HEADER_RING] =
+               num_async_pdu_buf_sgl_pages * PAGE_SIZE;
+       phba->mem_req[HWI_MEM_ASYNC_DATA_RING] =
+               num_async_pdu_data_sgl_pages * PAGE_SIZE;
+       phba->mem_req[HWI_MEM_ASYNC_HEADER_HANDLE] =
+               phba->params.asyncpdus_per_ctrl *
+               sizeof(struct async_pdu_handle);
+       phba->mem_req[HWI_MEM_ASYNC_DATA_HANDLE] =
+               phba->params.asyncpdus_per_ctrl *
+               sizeof(struct async_pdu_handle);
+       phba->mem_req[HWI_MEM_ASYNC_PDU_CONTEXT] =
+               sizeof(struct hwi_async_pdu_context) +
+               (phba->params.cxns_per_ctrl * sizeof(struct hwi_async_entry));
+}
+
+static int beiscsi_alloc_mem(struct beiscsi_hba *phba)
+{
+       struct be_mem_descriptor *mem_descr;
+       dma_addr_t bus_add;
+       struct mem_array *mem_arr, *mem_arr_orig;
+       unsigned int i, j, alloc_size, curr_alloc_size;
+
+       phba->phwi_ctrlr = kmalloc(phba->params.hwi_ws_sz, GFP_KERNEL);
+       if (!phba->phwi_ctrlr)
+               return -ENOMEM;
+
+       phba->init_mem = kcalloc(SE_MEM_MAX, sizeof(*mem_descr),
+                                GFP_KERNEL);
+       if (!phba->init_mem) {
+               kfree(phba->phwi_ctrlr);
+               return -ENOMEM;
+       }
+
+       mem_arr_orig = kmalloc(sizeof(*mem_arr_orig) * BEISCSI_MAX_FRAGS_INIT,
+                              GFP_KERNEL);
+       if (!mem_arr_orig) {
+               kfree(phba->init_mem);
+               kfree(phba->phwi_ctrlr);
+               return -ENOMEM;
+       }
+
+       mem_descr = phba->init_mem;
+       for (i = 0; i < SE_MEM_MAX; i++) {
+               j = 0;
+               mem_arr = mem_arr_orig;
+               alloc_size = phba->mem_req[i];
+               memset(mem_arr, 0, sizeof(struct mem_array) *
+                      BEISCSI_MAX_FRAGS_INIT);
+               curr_alloc_size = min(be_max_phys_size * 1024, alloc_size);
+               do {
+                       mem_arr->virtual_address = pci_alloc_consistent(
+                                                       phba->pcidev,
+                                                       curr_alloc_size,
+                                                       &bus_add);
+                       if (!mem_arr->virtual_address) {
+                               if (curr_alloc_size <= BE_MIN_MEM_SIZE)
+                                       goto free_mem;
+                               if (curr_alloc_size -
+                                       rounddown_pow_of_two(curr_alloc_size))
+                                       curr_alloc_size = rounddown_pow_of_two
+                                                            (curr_alloc_size);
+                               else
+                                       curr_alloc_size = curr_alloc_size / 2;
+                       } else {
+                               mem_arr->bus_address.u.
+                                   a64.address = (__u64) bus_add;
+                               mem_arr->size = curr_alloc_size;
+                               alloc_size -= curr_alloc_size;
+                               curr_alloc_size = min(be_max_phys_size *
+                                                     1024, alloc_size);
+                               j++;
+                               mem_arr++;
+                       }
+               } while (alloc_size);
+               mem_descr->num_elements = j;
+               mem_descr->size_in_bytes = phba->mem_req[i];
+               mem_descr->mem_array = kmalloc(sizeof(*mem_arr) * j,
+                                              GFP_KERNEL);
+               if (!mem_descr->mem_array)
+                       goto free_mem;
+
+               memcpy(mem_descr->mem_array, mem_arr_orig,
+                      sizeof(struct mem_array) * j);
+               mem_descr++;
+       }
+       kfree(mem_arr_orig);
+       return 0;
+free_mem:
+       mem_descr->num_elements = j;
+       while ((i) || (j)) {
+               for (j = mem_descr->num_elements; j > 0; j--) {
+                       pci_free_consistent(phba->pcidev,
+                                           mem_descr->mem_array[j - 1].size,
+                                           mem_descr->mem_array[j - 1].
+                                           virtual_address,
+                                           mem_descr->mem_array[j - 1].
+                                           bus_address.u.a64.address);
+               }
+               if (i) {
+                       i--;
+                       kfree(mem_descr->mem_array);
+                       mem_descr--;
+               }
+       }
+       kfree(mem_arr_orig);
+       kfree(phba->init_mem);
+       kfree(phba->phwi_ctrlr);
+       return -ENOMEM;
+}
+
+static int beiscsi_get_memory(struct beiscsi_hba *phba)
+{
+       beiscsi_find_mem_req(phba);
+       return beiscsi_alloc_mem(phba);
+}
+
+static void iscsi_init_global_templates(struct beiscsi_hba *phba)
+{
+       struct pdu_data_out *pdata_out;
+       struct pdu_nop_out *pnop_out;
+       struct be_mem_descriptor *mem_descr;
+
+       mem_descr = phba->init_mem;
+       mem_descr += ISCSI_MEM_GLOBAL_HEADER;
+       pdata_out =
+           (struct pdu_data_out *)mem_descr->mem_array[0].virtual_address;
+       memset(pdata_out, 0, BE_ISCSI_PDU_HEADER_SIZE);
+
+       AMAP_SET_BITS(struct amap_pdu_data_out, opcode, pdata_out,
+                     IIOC_SCSI_DATA);
+
+       pnop_out =
+           (struct pdu_nop_out *)((unsigned char *)mem_descr->mem_array[0].
+                                  virtual_address + BE_ISCSI_PDU_HEADER_SIZE);
+
+       memset(pnop_out, 0, BE_ISCSI_PDU_HEADER_SIZE);
+       AMAP_SET_BITS(struct amap_pdu_nop_out, ttt, pnop_out, 0xFFFFFFFF);
+       AMAP_SET_BITS(struct amap_pdu_nop_out, f_bit, pnop_out, 1);
+       AMAP_SET_BITS(struct amap_pdu_nop_out, i_bit, pnop_out, 0);
+}
+
+static void beiscsi_init_wrb_handle(struct beiscsi_hba *phba)
+{
+       struct be_mem_descriptor *mem_descr_wrbh, *mem_descr_wrb;
+       struct wrb_handle *pwrb_handle;
+       struct hwi_controller *phwi_ctrlr;
+       struct hwi_wrb_context *pwrb_context;
+       struct iscsi_wrb *pwrb;
+       unsigned int num_cxn_wrbh;
+       unsigned int num_cxn_wrb, j, idx, index;
+
+       mem_descr_wrbh = phba->init_mem;
+       mem_descr_wrbh += HWI_MEM_WRBH;
+
+       mem_descr_wrb = phba->init_mem;
+       mem_descr_wrb += HWI_MEM_WRB;
+
+       idx = 0;
+       pwrb_handle = mem_descr_wrbh->mem_array[idx].virtual_address;
+       num_cxn_wrbh = ((mem_descr_wrbh->mem_array[idx].size) /
+                       ((sizeof(struct wrb_handle)) *
+                        phba->params.wrbs_per_cxn));
+       phwi_ctrlr = phba->phwi_ctrlr;
+
+       for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) {
+               pwrb_context = &phwi_ctrlr->wrb_context[index];
+               SE_DEBUG(DBG_LVL_8, "cid=%d pwrb_context=%p \n", index,
+                                               pwrb_context);
+               pwrb_context->pwrb_handle_base =
+                               kzalloc(sizeof(struct wrb_handle *) *
+                                       phba->params.wrbs_per_cxn, GFP_KERNEL);
+               pwrb_context->pwrb_handle_basestd =
+                               kzalloc(sizeof(struct wrb_handle *) *
+                                       phba->params.wrbs_per_cxn, GFP_KERNEL);
+               if (num_cxn_wrbh) {
+                       pwrb_context->alloc_index = 0;
+                       pwrb_context->wrb_handles_available = 0;
+                       for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
+                               pwrb_context->pwrb_handle_base[j] = pwrb_handle;
+                               pwrb_context->pwrb_handle_basestd[j] =
+                                                               pwrb_handle;
+                               pwrb_context->wrb_handles_available++;
+                               pwrb_handle++;
+                       }
+                       pwrb_context->free_index = 0;
+                       num_cxn_wrbh--;
+               } else {
+                       idx++;
+                       pwrb_handle =
+                           mem_descr_wrbh->mem_array[idx].virtual_address;
+                       num_cxn_wrbh =
+                           ((mem_descr_wrbh->mem_array[idx].size) /
+                            ((sizeof(struct wrb_handle)) *
+                             phba->params.wrbs_per_cxn));
+                       pwrb_context->alloc_index = 0;
+                       for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
+                               pwrb_context->pwrb_handle_base[j] = pwrb_handle;
+                               pwrb_context->pwrb_handle_basestd[j] =
+                                   pwrb_handle;
+                               pwrb_context->wrb_handles_available++;
+                               pwrb_handle++;
+                       }
+                       pwrb_context->free_index = 0;
+                       num_cxn_wrbh--;
+               }
+       }
+       idx = 0;
+       pwrb = mem_descr_wrb->mem_array[idx].virtual_address;
+       num_cxn_wrb =
+           ((mem_descr_wrb->mem_array[idx].size) / (sizeof(struct iscsi_wrb)) *
+            phba->params.wrbs_per_cxn);
+
+       for (index = 0; index < phba->params.cxns_per_ctrl; index += 2) {
+               pwrb_context = &phwi_ctrlr->wrb_context[index];
+               if (num_cxn_wrb) {
+                       for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
+                               pwrb_handle = pwrb_context->pwrb_handle_base[j];
+                               pwrb_handle->pwrb = pwrb;
+                               pwrb++;
+                       }
+                       num_cxn_wrb--;
+               } else {
+                       idx++;
+                       pwrb = mem_descr_wrb->mem_array[idx].virtual_address;
+                       num_cxn_wrb = ((mem_descr_wrb->mem_array[idx].size) /
+                                       (sizeof(struct iscsi_wrb)) *
+                                       phba->params.wrbs_per_cxn);
+                       for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
+                               pwrb_handle = pwrb_context->pwrb_handle_base[j];
+                               pwrb_handle->pwrb = pwrb;
+                               pwrb++;
+                       }
+                       num_cxn_wrb--;
+               }
+       }
+}
+
+static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
+{
+       struct hwi_controller *phwi_ctrlr;
+       struct hba_parameters *p = &phba->params;
+       struct hwi_async_pdu_context *pasync_ctx;
+       struct async_pdu_handle *pasync_header_h, *pasync_data_h;
+       unsigned int index;
+       struct be_mem_descriptor *mem_descr;
+
+       mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+       mem_descr += HWI_MEM_ASYNC_PDU_CONTEXT;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       phwi_ctrlr->phwi_ctxt->pasync_ctx = (struct hwi_async_pdu_context *)
+                               mem_descr->mem_array[0].virtual_address;
+       pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx;
+       memset(pasync_ctx, 0, sizeof(*pasync_ctx));
+
+       pasync_ctx->async_header.num_entries = p->asyncpdus_per_ctrl;
+       pasync_ctx->async_header.buffer_size = p->defpdu_hdr_sz;
+       pasync_ctx->async_data.buffer_size = p->defpdu_data_sz;
+       pasync_ctx->async_data.num_entries = p->asyncpdus_per_ctrl;
+
+       mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+       mem_descr += HWI_MEM_ASYNC_HEADER_BUF;
+       if (mem_descr->mem_array[0].virtual_address) {
+               SE_DEBUG(DBG_LVL_8,
+                        "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_BUF"
+                        "va=%p \n", mem_descr->mem_array[0].virtual_address);
+       } else
+               shost_printk(KERN_WARNING, phba->shost,
+                            "No Virtual address \n");
+
+       pasync_ctx->async_header.va_base =
+                       mem_descr->mem_array[0].virtual_address;
+
+       pasync_ctx->async_header.pa_base.u.a64.address =
+                       mem_descr->mem_array[0].bus_address.u.a64.address;
+
+       mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+       mem_descr += HWI_MEM_ASYNC_HEADER_RING;
+       if (mem_descr->mem_array[0].virtual_address) {
+               SE_DEBUG(DBG_LVL_8,
+                        "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_RING"
+                        "va=%p \n", mem_descr->mem_array[0].virtual_address);
+       } else
+               shost_printk(KERN_WARNING, phba->shost,
+                           "No Virtual address \n");
+       pasync_ctx->async_header.ring_base =
+                       mem_descr->mem_array[0].virtual_address;
+
+       mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+       mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE;
+       if (mem_descr->mem_array[0].virtual_address) {
+               SE_DEBUG(DBG_LVL_8,
+                        "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_HANDLE"
+                        "va=%p \n", mem_descr->mem_array[0].virtual_address);
+       } else
+               shost_printk(KERN_WARNING, phba->shost,
+                           "No Virtual address \n");
+
+       pasync_ctx->async_header.handle_base =
+                       mem_descr->mem_array[0].virtual_address;
+       pasync_ctx->async_header.writables = 0;
+       INIT_LIST_HEAD(&pasync_ctx->async_header.free_list);
+
+       mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+       mem_descr += HWI_MEM_ASYNC_DATA_BUF;
+       if (mem_descr->mem_array[0].virtual_address) {
+               SE_DEBUG(DBG_LVL_8,
+                        "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_BUF"
+                        "va=%p \n", mem_descr->mem_array[0].virtual_address);
+       } else
+               shost_printk(KERN_WARNING, phba->shost,
+                           "No Virtual address \n");
+       pasync_ctx->async_data.va_base =
+                       mem_descr->mem_array[0].virtual_address;
+       pasync_ctx->async_data.pa_base.u.a64.address =
+                       mem_descr->mem_array[0].bus_address.u.a64.address;
+
+       mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+       mem_descr += HWI_MEM_ASYNC_DATA_RING;
+       if (mem_descr->mem_array[0].virtual_address) {
+               SE_DEBUG(DBG_LVL_8,
+                        "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_RING"
+                        "va=%p \n", mem_descr->mem_array[0].virtual_address);
+       } else
+               shost_printk(KERN_WARNING, phba->shost,
+                            "No Virtual address \n");
+
+       pasync_ctx->async_data.ring_base =
+                       mem_descr->mem_array[0].virtual_address;
+
+       mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+       mem_descr += HWI_MEM_ASYNC_DATA_HANDLE;
+       if (!mem_descr->mem_array[0].virtual_address)
+               shost_printk(KERN_WARNING, phba->shost,
+                           "No Virtual address \n");
+
+       pasync_ctx->async_data.handle_base =
+                       mem_descr->mem_array[0].virtual_address;
+       pasync_ctx->async_data.writables = 0;
+       INIT_LIST_HEAD(&pasync_ctx->async_data.free_list);
+
+       pasync_header_h =
+               (struct async_pdu_handle *)pasync_ctx->async_header.handle_base;
+       pasync_data_h =
+               (struct async_pdu_handle *)pasync_ctx->async_data.handle_base;
+
+       for (index = 0; index < p->asyncpdus_per_ctrl; index++) {
+               pasync_header_h->cri = -1;
+               pasync_header_h->index = (char)index;
+               INIT_LIST_HEAD(&pasync_header_h->link);
+               pasync_header_h->pbuffer =
+                       (void *)((unsigned long)
+                       (pasync_ctx->async_header.va_base) +
+                       (p->defpdu_hdr_sz * index));
+
+               pasync_header_h->pa.u.a64.address =
+                       pasync_ctx->async_header.pa_base.u.a64.address +
+                       (p->defpdu_hdr_sz * index);
+
+               list_add_tail(&pasync_header_h->link,
+                               &pasync_ctx->async_header.free_list);
+               pasync_header_h++;
+               pasync_ctx->async_header.free_entries++;
+               pasync_ctx->async_header.writables++;
+
+               INIT_LIST_HEAD(&pasync_ctx->async_entry[index].wait_queue.list);
+               INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
+                              header_busy_list);
+               pasync_data_h->cri = -1;
+               pasync_data_h->index = (char)index;
+               INIT_LIST_HEAD(&pasync_data_h->link);
+               pasync_data_h->pbuffer =
+                       (void *)((unsigned long)
+                       (pasync_ctx->async_data.va_base) +
+                       (p->defpdu_data_sz * index));
+
+               pasync_data_h->pa.u.a64.address =
+                   pasync_ctx->async_data.pa_base.u.a64.address +
+                   (p->defpdu_data_sz * index);
+
+               list_add_tail(&pasync_data_h->link,
+                             &pasync_ctx->async_data.free_list);
+               pasync_data_h++;
+               pasync_ctx->async_data.free_entries++;
+               pasync_ctx->async_data.writables++;
+
+               INIT_LIST_HEAD(&pasync_ctx->async_entry[index].data_busy_list);
+       }
+
+       pasync_ctx->async_header.host_write_ptr = 0;
+       pasync_ctx->async_header.ep_read_ptr = -1;
+       pasync_ctx->async_data.host_write_ptr = 0;
+       pasync_ctx->async_data.ep_read_ptr = -1;
+}
+
+static int
+be_sgl_create_contiguous(void *virtual_address,
+                        u64 physical_address, u32 length,
+                        struct be_dma_mem *sgl)
+{
+       WARN_ON(!virtual_address);
+       WARN_ON(!physical_address);
+       WARN_ON(!length > 0);
+       WARN_ON(!sgl);
+
+       sgl->va = virtual_address;
+       sgl->dma = physical_address;
+       sgl->size = length;
+
+       return 0;
+}
+
+static void be_sgl_destroy_contiguous(struct be_dma_mem *sgl)
+{
+       memset(sgl, 0, sizeof(*sgl));
+}
+
+static void
+hwi_build_be_sgl_arr(struct beiscsi_hba *phba,
+                    struct mem_array *pmem, struct be_dma_mem *sgl)
+{
+       if (sgl->va)
+               be_sgl_destroy_contiguous(sgl);
+
+       be_sgl_create_contiguous(pmem->virtual_address,
+                                pmem->bus_address.u.a64.address,
+                                pmem->size, sgl);
+}
+
+static void
+hwi_build_be_sgl_by_offset(struct beiscsi_hba *phba,
+                          struct mem_array *pmem, struct be_dma_mem *sgl)
+{
+       if (sgl->va)
+               be_sgl_destroy_contiguous(sgl);
+
+       be_sgl_create_contiguous((unsigned char *)pmem->virtual_address,
+                                pmem->bus_address.u.a64.address,
+                                pmem->size, sgl);
+}
+
+static int be_fill_queue(struct be_queue_info *q,
+               u16 len, u16 entry_size, void *vaddress)
+{
+       struct be_dma_mem *mem = &q->dma_mem;
+
+       memset(q, 0, sizeof(*q));
+       q->len = len;
+       q->entry_size = entry_size;
+       mem->size = len * entry_size;
+       mem->va = vaddress;
+       if (!mem->va)
+               return -ENOMEM;
+       memset(mem->va, 0, mem->size);
+       return 0;
+}
+
+static int beiscsi_create_eq(struct beiscsi_hba *phba,
+                            struct hwi_context_memory *phwi_context)
+{
+       unsigned int idx;
+       int ret;
+       struct be_queue_info *eq;
+       struct be_dma_mem *mem;
+       struct be_mem_descriptor *mem_descr;
+       void *eq_vaddress;
+
+       idx = 0;
+       eq = &phwi_context->be_eq.q;
+       mem = &eq->dma_mem;
+       mem_descr = phba->init_mem;
+       mem_descr += HWI_MEM_EQ;
+       eq_vaddress = mem_descr->mem_array[idx].virtual_address;
+
+       ret = be_fill_queue(eq, phba->params.num_eq_entries,
+                           sizeof(struct be_eq_entry), eq_vaddress);
+       if (ret) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "be_fill_queue Failed for EQ \n");
+               return ret;
+       }
+
+       mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address;
+
+       ret = beiscsi_cmd_eq_create(&phba->ctrl, eq,
+                                   phwi_context->be_eq.cur_eqd);
+       if (ret) {
+               shost_printk(KERN_ERR, phba->shost, "beiscsi_cmd_eq_create"
+                            "Failedfor EQ \n");
+               return ret;
+       }
+       SE_DEBUG(DBG_LVL_8, "eq id is %d\n", phwi_context->be_eq.q.id);
+       return 0;
+}
+
+static int beiscsi_create_cq(struct beiscsi_hba *phba,
+                            struct hwi_context_memory *phwi_context)
+{
+       unsigned int idx;
+       int ret;
+       struct be_queue_info *cq, *eq;
+       struct be_dma_mem *mem;
+       struct be_mem_descriptor *mem_descr;
+       void *cq_vaddress;
+
+       idx = 0;
+       cq = &phwi_context->be_cq;
+       eq = &phwi_context->be_eq.q;
+       mem = &cq->dma_mem;
+       mem_descr = phba->init_mem;
+       mem_descr += HWI_MEM_CQ;
+       cq_vaddress = mem_descr->mem_array[idx].virtual_address;
+       ret = be_fill_queue(cq, phba->params.icds_per_ctrl / 2,
+                           sizeof(struct sol_cqe), cq_vaddress);
+       if (ret) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "be_fill_queue Failed for ISCSI CQ \n");
+               return ret;
+       }
+
+       mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address;
+       ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false, false, 0);
+       if (ret) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "beiscsi_cmd_eq_create Failed for ISCSI CQ \n");
+               return ret;
+       }
+       SE_DEBUG(DBG_LVL_8, "iscsi cq id is %d\n", phwi_context->be_cq.id);
+       SE_DEBUG(DBG_LVL_8, "ISCSI CQ CREATED\n");
+       return 0;
+}
+
+static int
+beiscsi_create_def_hdr(struct beiscsi_hba *phba,
+                      struct hwi_context_memory *phwi_context,
+                      struct hwi_controller *phwi_ctrlr,
+                      unsigned int def_pdu_ring_sz)
+{
+       unsigned int idx;
+       int ret;
+       struct be_queue_info *dq, *cq;
+       struct be_dma_mem *mem;
+       struct be_mem_descriptor *mem_descr;
+       void *dq_vaddress;
+
+       idx = 0;
+       dq = &phwi_context->be_def_hdrq;
+       cq = &phwi_context->be_cq;
+       mem = &dq->dma_mem;
+       mem_descr = phba->init_mem;
+       mem_descr += HWI_MEM_ASYNC_HEADER_RING;
+       dq_vaddress = mem_descr->mem_array[idx].virtual_address;
+       ret = be_fill_queue(dq, mem_descr->mem_array[0].size /
+                           sizeof(struct phys_addr),
+                           sizeof(struct phys_addr), dq_vaddress);
+       if (ret) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "be_fill_queue Failed for DEF PDU HDR\n");
+               return ret;
+       }
+       mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address;
+       ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dq,
+                                             def_pdu_ring_sz,
+                                             phba->params.defpdu_hdr_sz);
+       if (ret) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "be_cmd_create_default_pdu_queue Failed DEFHDR\n");
+               return ret;
+       }
+       phwi_ctrlr->default_pdu_hdr.id = phwi_context->be_def_hdrq.id;
+       SE_DEBUG(DBG_LVL_8, "iscsi def pdu id is %d\n",
+                phwi_context->be_def_hdrq.id);
+       hwi_post_async_buffers(phba, 1);
+       return 0;
+}
+
+static int
+beiscsi_create_def_data(struct beiscsi_hba *phba,
+                       struct hwi_context_memory *phwi_context,
+                       struct hwi_controller *phwi_ctrlr,
+                       unsigned int def_pdu_ring_sz)
+{
+       unsigned int idx;
+       int ret;
+       struct be_queue_info *dataq, *cq;
+       struct be_dma_mem *mem;
+       struct be_mem_descriptor *mem_descr;
+       void *dq_vaddress;
+
+       idx = 0;
+       dataq = &phwi_context->be_def_dataq;
+       cq = &phwi_context->be_cq;
+       mem = &dataq->dma_mem;
+       mem_descr = phba->init_mem;
+       mem_descr += HWI_MEM_ASYNC_DATA_RING;
+       dq_vaddress = mem_descr->mem_array[idx].virtual_address;
+       ret = be_fill_queue(dataq, mem_descr->mem_array[0].size /
+                           sizeof(struct phys_addr),
+                           sizeof(struct phys_addr), dq_vaddress);
+       if (ret) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "be_fill_queue Failed for DEF PDU DATA\n");
+               return ret;
+       }
+       mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address;
+       ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dataq,
+                                             def_pdu_ring_sz,
+                                             phba->params.defpdu_data_sz);
+       if (ret) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "be_cmd_create_default_pdu_queue Failed"
+                            " for DEF PDU DATA\n");
+               return ret;
+       }
+       phwi_ctrlr->default_pdu_data.id = phwi_context->be_def_dataq.id;
+       SE_DEBUG(DBG_LVL_8, "iscsi def data id is %d\n",
+                phwi_context->be_def_dataq.id);
+       hwi_post_async_buffers(phba, 0);
+       SE_DEBUG(DBG_LVL_8, "DEFAULT PDU DATA RING CREATED \n");
+       return 0;
+}
+
+static int
+beiscsi_post_pages(struct beiscsi_hba *phba)
+{
+       struct be_mem_descriptor *mem_descr;
+       struct mem_array *pm_arr;
+       unsigned int page_offset, i;
+       struct be_dma_mem sgl;
+       int status;
+
+       mem_descr = phba->init_mem;
+       mem_descr += HWI_MEM_SGE;
+       pm_arr = mem_descr->mem_array;
+
+       page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io *
+                       phba->fw_config.iscsi_icd_start) / PAGE_SIZE;
+       for (i = 0; i < mem_descr->num_elements; i++) {
+               hwi_build_be_sgl_arr(phba, pm_arr, &sgl);
+               status = be_cmd_iscsi_post_sgl_pages(&phba->ctrl, &sgl,
+                                               page_offset,
+                                               (pm_arr->size / PAGE_SIZE));
+               page_offset += pm_arr->size / PAGE_SIZE;
+               if (status != 0) {
+                       shost_printk(KERN_ERR, phba->shost,
+                                    "post sgl failed.\n");
+                       return status;
+               }
+               pm_arr++;
+       }
+       SE_DEBUG(DBG_LVL_8, "POSTED PAGES \n");
+       return 0;
+}
+
+static int
+beiscsi_create_wrb_rings(struct beiscsi_hba *phba,
+                        struct hwi_context_memory *phwi_context,
+                        struct hwi_controller *phwi_ctrlr)
+{
+       unsigned int wrb_mem_index, offset, size, num_wrb_rings;
+       u64 pa_addr_lo;
+       unsigned int idx, num, i;
+       struct mem_array *pwrb_arr;
+       void *wrb_vaddr;
+       struct be_dma_mem sgl;
+       struct be_mem_descriptor *mem_descr;
+       int status;
+
+       idx = 0;
+       mem_descr = phba->init_mem;
+       mem_descr += HWI_MEM_WRB;
+       pwrb_arr = kmalloc(sizeof(*pwrb_arr) * phba->params.cxns_per_ctrl,
+                          GFP_KERNEL);
+       if (!pwrb_arr) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "Memory alloc failed in create wrb ring.\n");
+               return -ENOMEM;
+       }
+       wrb_vaddr = mem_descr->mem_array[idx].virtual_address;
+       pa_addr_lo = mem_descr->mem_array[idx].bus_address.u.a64.address;
+       num_wrb_rings = mem_descr->mem_array[idx].size /
+               (phba->params.wrbs_per_cxn * sizeof(struct iscsi_wrb));
+
+       for (num = 0; num < phba->params.cxns_per_ctrl; num++) {
+               if (num_wrb_rings) {
+                       pwrb_arr[num].virtual_address = wrb_vaddr;
+                       pwrb_arr[num].bus_address.u.a64.address = pa_addr_lo;
+                       pwrb_arr[num].size = phba->params.wrbs_per_cxn *
+                                           sizeof(struct iscsi_wrb);
+                       wrb_vaddr += pwrb_arr[num].size;
+                       pa_addr_lo += pwrb_arr[num].size;
+                       num_wrb_rings--;
+               } else {
+                       idx++;
+                       wrb_vaddr = mem_descr->mem_array[idx].virtual_address;
+                       pa_addr_lo = mem_descr->mem_array[idx].\
+                                       bus_address.u.a64.address;
+                       num_wrb_rings = mem_descr->mem_array[idx].size /
+                                       (phba->params.wrbs_per_cxn *
+                                       sizeof(struct iscsi_wrb));
+                       pwrb_arr[num].virtual_address = wrb_vaddr;
+                       pwrb_arr[num].bus_address.u.a64.address\
+                                               = pa_addr_lo;
+                       pwrb_arr[num].size = phba->params.wrbs_per_cxn *
+                                                sizeof(struct iscsi_wrb);
+                       wrb_vaddr += pwrb_arr[num].size;
+                       pa_addr_lo   += pwrb_arr[num].size;
+                       num_wrb_rings--;
+               }
+       }
+       for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
+               wrb_mem_index = 0;
+               offset = 0;
+               size = 0;
+
+               hwi_build_be_sgl_by_offset(phba, &pwrb_arr[i], &sgl);
+               status = be_cmd_wrbq_create(&phba->ctrl, &sgl,
+                                           &phwi_context->be_wrbq[i]);
+               if (status != 0) {
+                       shost_printk(KERN_ERR, phba->shost,
+                                    "wrbq create failed.");
+                       return status;
+               }
+               phwi_ctrlr->wrb_context[i].cid = phwi_context->be_wrbq[i].id;
+       }
+       kfree(pwrb_arr);
+       return 0;
+}
+
+static void free_wrb_handles(struct beiscsi_hba *phba)
+{
+       unsigned int index;
+       struct hwi_controller *phwi_ctrlr;
+       struct hwi_wrb_context *pwrb_context;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) {
+               pwrb_context = &phwi_ctrlr->wrb_context[index];
+               kfree(pwrb_context->pwrb_handle_base);
+               kfree(pwrb_context->pwrb_handle_basestd);
+       }
+}
+
+static void hwi_cleanup(struct beiscsi_hba *phba)
+{
+       struct be_queue_info *q;
+       struct be_ctrl_info *ctrl = &phba->ctrl;
+       struct hwi_controller *phwi_ctrlr;
+       struct hwi_context_memory *phwi_context;
+       int i;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       phwi_context = phwi_ctrlr->phwi_ctxt;
+       for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
+               q = &phwi_context->be_wrbq[i];
+               if (q->created)
+                       beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ);
+       }
+
+       free_wrb_handles(phba);
+
+       q = &phwi_context->be_def_hdrq;
+       if (q->created)
+               beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
+
+       q = &phwi_context->be_def_dataq;
+       if (q->created)
+               beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
+
+       beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
+
+       q = &phwi_context->be_cq;
+       if (q->created)
+               beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
+
+       q = &phwi_context->be_eq.q;
+       if (q->created)
+               beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ);
+}
+
+static int hwi_init_port(struct beiscsi_hba *phba)
+{
+       struct hwi_controller *phwi_ctrlr;
+       struct hwi_context_memory *phwi_context;
+       unsigned int def_pdu_ring_sz;
+       struct be_ctrl_info *ctrl = &phba->ctrl;
+       int status;
+
+       def_pdu_ring_sz =
+               phba->params.asyncpdus_per_ctrl * sizeof(struct phys_addr);
+       phwi_ctrlr = phba->phwi_ctrlr;
+
+       phwi_context = phwi_ctrlr->phwi_ctxt;
+       phwi_context->be_eq.max_eqd = 0;
+       phwi_context->be_eq.min_eqd = 0;
+       phwi_context->be_eq.cur_eqd = 64;
+       phwi_context->be_eq.enable_aic = false;
+       be_cmd_fw_initialize(&phba->ctrl);
+       status = beiscsi_create_eq(phba, phwi_context);
+       if (status != 0) {
+               shost_printk(KERN_ERR, phba->shost, "EQ not created \n");
+               goto error;
+       }
+
+       status = mgmt_check_supported_fw(ctrl);
+       if (status != 0) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "Unsupported fw version \n");
+               goto error;
+       }
+
+       status = mgmt_get_fw_config(ctrl, phba);
+       if (status != 0) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "Error getting fw config\n");
+               goto error;
+       }
+
+       status = beiscsi_create_cq(phba, phwi_context);
+       if (status != 0) {
+               shost_printk(KERN_ERR, phba->shost, "CQ not created\n");
+               goto error;
+       }
+
+       status = beiscsi_create_def_hdr(phba, phwi_context, phwi_ctrlr,
+                                       def_pdu_ring_sz);
+       if (status != 0) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "Default Header not created\n");
+               goto error;
+       }
+
+       status = beiscsi_create_def_data(phba, phwi_context,
+                                        phwi_ctrlr, def_pdu_ring_sz);
+       if (status != 0) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "Default Data not created\n");
+               goto error;
+       }
+
+       status = beiscsi_post_pages(phba);
+       if (status != 0) {
+               shost_printk(KERN_ERR, phba->shost, "Post SGL Pages Failed\n");
+               goto error;
+       }
+
+       status = beiscsi_create_wrb_rings(phba, phwi_context, phwi_ctrlr);
+       if (status != 0) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "WRB Rings not created\n");
+               goto error;
+       }
+
+       SE_DEBUG(DBG_LVL_8, "hwi_init_port success\n");
+       return 0;
+
+error:
+       shost_printk(KERN_ERR, phba->shost, "hwi_init_port failed");
+       hwi_cleanup(phba);
+       return -ENOMEM;
+}
+
+
+static int hwi_init_controller(struct beiscsi_hba *phba)
+{
+       struct hwi_controller *phwi_ctrlr;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       if (1 == phba->init_mem[HWI_MEM_ADDN_CONTEXT].num_elements) {
+               phwi_ctrlr->phwi_ctxt = (struct hwi_context_memory *)phba->
+                   init_mem[HWI_MEM_ADDN_CONTEXT].mem_array[0].virtual_address;
+               SE_DEBUG(DBG_LVL_8, " phwi_ctrlr->phwi_ctxt=%p \n",
+                        phwi_ctrlr->phwi_ctxt);
+       } else {
+               shost_printk(KERN_ERR, phba->shost,
+                            "HWI_MEM_ADDN_CONTEXT is more than one element."
+                            "Failing to load\n");
+               return -ENOMEM;
+       }
+
+       iscsi_init_global_templates(phba);
+       beiscsi_init_wrb_handle(phba);
+       hwi_init_async_pdu_ctx(phba);
+       if (hwi_init_port(phba) != 0) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "hwi_init_controller failed\n");
+               return -ENOMEM;
+       }
+       return 0;
+}
+
+static void beiscsi_free_mem(struct beiscsi_hba *phba)
+{
+       struct be_mem_descriptor *mem_descr;
+       int i, j;
+
+       mem_descr = phba->init_mem;
+       i = 0;
+       j = 0;
+       for (i = 0; i < SE_MEM_MAX; i++) {
+               for (j = mem_descr->num_elements; j > 0; j--) {
+                       pci_free_consistent(phba->pcidev,
+                         mem_descr->mem_array[j - 1].size,
+                         mem_descr->mem_array[j - 1].virtual_address,
+                         mem_descr->mem_array[j - 1].bus_address.
+                               u.a64.address);
+               }
+               kfree(mem_descr->mem_array);
+               mem_descr++;
+       }
+       kfree(phba->init_mem);
+       kfree(phba->phwi_ctrlr);
+}
+
+static int beiscsi_init_controller(struct beiscsi_hba *phba)
+{
+       int ret = -ENOMEM;
+
+       ret = beiscsi_get_memory(phba);
+       if (ret < 0) {
+               shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe -"
+                            "Failed in beiscsi_alloc_memory \n");
+               return ret;
+       }
+
+       ret = hwi_init_controller(phba);
+       if (ret)
+               goto free_init;
+       SE_DEBUG(DBG_LVL_8, "Return success from beiscsi_init_controller");
+       return 0;
+
+free_init:
+       beiscsi_free_mem(phba);
+       return -ENOMEM;
+}
+
+static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
+{
+       struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg;
+       struct sgl_handle *psgl_handle;
+       struct iscsi_sge *pfrag;
+       unsigned int arr_index, i, idx;
+
+       phba->io_sgl_hndl_avbl = 0;
+       phba->eh_sgl_hndl_avbl = 0;
+       mem_descr_sglh = phba->init_mem;
+       mem_descr_sglh += HWI_MEM_SGLH;
+       if (1 == mem_descr_sglh->num_elements) {
+               phba->io_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) *
+                                                phba->params.ios_per_ctrl,
+                                                GFP_KERNEL);
+               if (!phba->io_sgl_hndl_base) {
+                       shost_printk(KERN_ERR, phba->shost,
+                                    "Mem Alloc Failed. Failing to load\n");
+                       return -ENOMEM;
+               }
+               phba->eh_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) *
+                                                (phba->params.icds_per_ctrl -
+                                                phba->params.ios_per_ctrl),
+                                                GFP_KERNEL);
+               if (!phba->eh_sgl_hndl_base) {
+                       kfree(phba->io_sgl_hndl_base);
+                       shost_printk(KERN_ERR, phba->shost,
+                                    "Mem Alloc Failed. Failing to load\n");
+                       return -ENOMEM;
+               }
+       } else {
+               shost_printk(KERN_ERR, phba->shost,
+                            "HWI_MEM_SGLH is more than one element."
+                            "Failing to load\n");
+               return -ENOMEM;
+       }
+
+       arr_index = 0;
+       idx = 0;
+       while (idx < mem_descr_sglh->num_elements) {
+               psgl_handle = mem_descr_sglh->mem_array[idx].virtual_address;
+
+               for (i = 0; i < (mem_descr_sglh->mem_array[idx].size /
+                     sizeof(struct sgl_handle)); i++) {
+                       if (arr_index < phba->params.ios_per_ctrl) {
+                               phba->io_sgl_hndl_base[arr_index] = psgl_handle;
+                               phba->io_sgl_hndl_avbl++;
+                               arr_index++;
+                       } else {
+                               phba->eh_sgl_hndl_base[arr_index -
+                                       phba->params.ios_per_ctrl] =
+                                                               psgl_handle;
+                               arr_index++;
+                               phba->eh_sgl_hndl_avbl++;
+                       }
+                       psgl_handle++;
+               }
+               idx++;
+       }
+       SE_DEBUG(DBG_LVL_8,
+                "phba->io_sgl_hndl_avbl=%d"
+                "phba->eh_sgl_hndl_avbl=%d \n",
+                phba->io_sgl_hndl_avbl,
+                phba->eh_sgl_hndl_avbl);
+       mem_descr_sg = phba->init_mem;
+       mem_descr_sg += HWI_MEM_SGE;
+       SE_DEBUG(DBG_LVL_8, "\n mem_descr_sg->num_elements=%d \n",
+                mem_descr_sg->num_elements);
+       arr_index = 0;
+       idx = 0;
+       while (idx < mem_descr_sg->num_elements) {
+               pfrag = mem_descr_sg->mem_array[idx].virtual_address;
+
+               for (i = 0;
+                    i < (mem_descr_sg->mem_array[idx].size) /
+                    (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io);
+                    i++) {
+                       if (arr_index < phba->params.ios_per_ctrl)
+                               psgl_handle = phba->io_sgl_hndl_base[arr_index];
+                       else
+                               psgl_handle = phba->eh_sgl_hndl_base[arr_index -
+                                               phba->params.ios_per_ctrl];
+                       psgl_handle->pfrag = pfrag;
+                       AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, pfrag, 0);
+                       AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0);
+                       pfrag += phba->params.num_sge_per_io;
+                       psgl_handle->sgl_index =
+                               phba->fw_config.iscsi_cid_start + arr_index++;
+               }
+               idx++;
+       }
+       phba->io_sgl_free_index = 0;
+       phba->io_sgl_alloc_index = 0;
+       phba->eh_sgl_free_index = 0;
+       phba->eh_sgl_alloc_index = 0;
+       return 0;
+}
+
+static int hba_setup_cid_tbls(struct beiscsi_hba *phba)
+{
+       int i, new_cid;
+
+       phba->cid_array = kmalloc(sizeof(void *) * phba->params.cxns_per_ctrl,
+                                 GFP_KERNEL);
+       if (!phba->cid_array) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "Failed to allocate memory in "
+                            "hba_setup_cid_tbls\n");
+               return -ENOMEM;
+       }
+       phba->ep_array = kmalloc(sizeof(struct iscsi_endpoint *) *
+                                phba->params.cxns_per_ctrl * 2, GFP_KERNEL);
+       if (!phba->ep_array) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "Failed to allocate memory in "
+                            "hba_setup_cid_tbls \n");
+               kfree(phba->cid_array);
+               return -ENOMEM;
+       }
+       new_cid = phba->fw_config.iscsi_icd_start;
+       for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
+               phba->cid_array[i] = new_cid;
+               new_cid += 2;
+       }
+       phba->avlbl_cids = phba->params.cxns_per_ctrl;
+       return 0;
+}
+
+static unsigned char hwi_enable_intr(struct beiscsi_hba *phba)
+{
+       struct be_ctrl_info *ctrl = &phba->ctrl;
+       struct hwi_controller *phwi_ctrlr;
+       struct hwi_context_memory *phwi_context;
+       struct be_queue_info *eq;
+       u8 __iomem *addr;
+       u32 reg;
+       u32 enabled;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       phwi_context = phwi_ctrlr->phwi_ctxt;
+
+       eq = &phwi_context->be_eq.q;
+       addr = (u8 __iomem *) ((u8 __iomem *) ctrl->pcicfg +
+                       PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET);
+       reg = ioread32(addr);
+       SE_DEBUG(DBG_LVL_8, "reg =x%08x \n", reg);
+
+       enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
+       if (!enabled) {
+               reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
+               SE_DEBUG(DBG_LVL_8, "reg =x%08x addr=%p \n", reg, addr);
+               iowrite32(reg, addr);
+               SE_DEBUG(DBG_LVL_8, "eq->id=%d \n", eq->id);
+
+               hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1);
+       } else
+               shost_printk(KERN_WARNING, phba->shost,
+                            "In hwi_enable_intr, Not Enabled \n");
+       return true;
+}
+
+static void hwi_disable_intr(struct beiscsi_hba *phba)
+{
+       struct be_ctrl_info *ctrl = &phba->ctrl;
+
+       u8 __iomem *addr = ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
+       u32 reg = ioread32(addr);
+
+       u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
+       if (enabled) {
+               reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
+               iowrite32(reg, addr);
+       } else
+               shost_printk(KERN_WARNING, phba->shost,
+                            "In hwi_disable_intr, Already Disabled \n");
+}
+
+static int beiscsi_init_port(struct beiscsi_hba *phba)
+{
+       int ret;
+
+       ret = beiscsi_init_controller(phba);
+       if (ret < 0) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "beiscsi_dev_probe - Failed in"
+                            "beiscsi_init_controller \n");
+               return ret;
+       }
+       ret = beiscsi_init_sgl_handle(phba);
+       if (ret < 0) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "beiscsi_dev_probe - Failed in"
+                            "beiscsi_init_sgl_handle \n");
+               goto do_cleanup_ctrlr;
+       }
+
+       if (hba_setup_cid_tbls(phba)) {
+               shost_printk(KERN_ERR, phba->shost,
+                            "Failed in hba_setup_cid_tbls\n");
+               kfree(phba->io_sgl_hndl_base);
+               kfree(phba->eh_sgl_hndl_base);
+               goto do_cleanup_ctrlr;
+       }
+
+       return ret;
+
+do_cleanup_ctrlr:
+       hwi_cleanup(phba);
+       return ret;
+}
+
+static void hwi_purge_eq(struct beiscsi_hba *phba)
+{
+       struct hwi_controller *phwi_ctrlr;
+       struct hwi_context_memory *phwi_context;
+       struct be_queue_info *eq;
+       struct be_eq_entry *eqe = NULL;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       phwi_context = phwi_ctrlr->phwi_ctxt;
+       eq = &phwi_context->be_eq.q;
+       eqe = queue_tail_node(eq);
+
+       while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
+                                               & EQE_VALID_MASK) {
+               AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
+               queue_tail_inc(eq);
+               eqe = queue_tail_node(eq);
+       }
+}
+
+static void beiscsi_clean_port(struct beiscsi_hba *phba)
+{
+       unsigned char mgmt_status;
+
+       mgmt_status = mgmt_epfw_cleanup(phba, CMD_CONNECTION_CHUTE_0);
+       if (mgmt_status)
+               shost_printk(KERN_WARNING, phba->shost,
+                            "mgmt_epfw_cleanup FAILED \n");
+       hwi_cleanup(phba);
+       hwi_purge_eq(phba);
+       kfree(phba->io_sgl_hndl_base);
+       kfree(phba->eh_sgl_hndl_base);
+       kfree(phba->cid_array);
+       kfree(phba->ep_array);
+}
+
+void
+beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn,
+                          struct beiscsi_offload_params *params)
+{
+       struct wrb_handle *pwrb_handle;
+       struct iscsi_target_context_update_wrb *pwrb = NULL;
+       struct be_mem_descriptor *mem_descr;
+       struct beiscsi_hba *phba = beiscsi_conn->phba;
+       u32 doorbell = 0;
+
+       /*
+        * We can always use 0 here because it is reserved by libiscsi for
+        * login/startup related tasks.
+        */
+       pwrb_handle = alloc_wrb_handle(phba, beiscsi_conn->beiscsi_conn_cid, 0);
+       pwrb = (struct iscsi_target_context_update_wrb *)pwrb_handle->pwrb;
+       memset(pwrb, 0, sizeof(*pwrb));
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+                     max_burst_length, pwrb, params->dw[offsetof
+                     (struct amap_beiscsi_offload_params,
+                     max_burst_length) / 32]);
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+                     max_send_data_segment_length, pwrb,
+                     params->dw[offsetof(struct amap_beiscsi_offload_params,
+                     max_send_data_segment_length) / 32]);
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+                     first_burst_length,
+                     pwrb,
+                     params->dw[offsetof(struct amap_beiscsi_offload_params,
+                     first_burst_length) / 32]);
+
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, erl, pwrb,
+                     (params->dw[offsetof(struct amap_beiscsi_offload_params,
+                     erl) / 32] & OFFLD_PARAMS_ERL));
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, dde, pwrb,
+                     (params->dw[offsetof(struct amap_beiscsi_offload_params,
+                     dde) / 32] & OFFLD_PARAMS_DDE) >> 2);
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, hde, pwrb,
+                     (params->dw[offsetof(struct amap_beiscsi_offload_params,
+                     hde) / 32] & OFFLD_PARAMS_HDE) >> 3);
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ir2t, pwrb,
+                     (params->dw[offsetof(struct amap_beiscsi_offload_params,
+                     ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4);
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, imd, pwrb,
+                     (params->dw[offsetof(struct amap_beiscsi_offload_params,
+                      imd) / 32] & OFFLD_PARAMS_IMD) >> 5);
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, stat_sn,
+                     pwrb,
+                     (params->dw[offsetof(struct amap_beiscsi_offload_params,
+                     exp_statsn) / 32] + 1));
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, type, pwrb,
+                     0x7);
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, wrb_idx,
+                     pwrb, pwrb_handle->wrb_index);
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ptr2nextwrb,
+                     pwrb, pwrb_handle->nxt_wrb_index);
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+                       session_state, pwrb, 0);
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, compltonack,
+                     pwrb, 1);
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, notpredblq,
+                     pwrb, 0);
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, mode, pwrb,
+                     0);
+
+       mem_descr = phba->init_mem;
+       mem_descr += ISCSI_MEM_GLOBAL_HEADER;
+
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+                       pad_buffer_addr_hi, pwrb,
+                     mem_descr->mem_array[0].bus_address.u.a32.address_hi);
+       AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+                       pad_buffer_addr_lo, pwrb,
+                     mem_descr->mem_array[0].bus_address.u.a32.address_lo);
+
+       be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_target_context_update_wrb));
+
+       doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
+       doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK) <<
+                                       DB_DEF_PDU_WRB_INDEX_SHIFT;
+       doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
+
+       iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET);
+}
+
+static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt,
+                             int *index, int *age)
+{
+       *index = be32_to_cpu(itt) >> 16;
+       if (age)
+               *age = conn->session->age;
+}
+
+/**
+ * beiscsi_alloc_pdu - allocates pdu and related resources
+ * @task: libiscsi task
+ * @opcode: opcode of pdu for task
+ *
+ * This is called with the session lock held. It will allocate
+ * the wrb and sgl if needed for the command. And it will prep
+ * the pdu's itt. beiscsi_parse_pdu will later translate
+ * the pdu itt to the libiscsi task itt.
+ */
+static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
+{
+       struct beiscsi_io_task *io_task = task->dd_data;
+       struct iscsi_conn *conn = task->conn;
+       struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+       struct beiscsi_hba *phba = beiscsi_conn->phba;
+       struct hwi_wrb_context *pwrb_context;
+       struct hwi_controller *phwi_ctrlr;
+       itt_t itt;
+       struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess;
+       dma_addr_t paddr;
+
+       io_task->cmd_bhs = pci_pool_alloc(beiscsi_sess->bhs_pool,
+                                         GFP_KERNEL, &paddr);
+
+       if (!io_task->cmd_bhs)
+               return -ENOMEM;
+
+       io_task->bhs_pa.u.a64.address = paddr;
+       io_task->pwrb_handle = alloc_wrb_handle(phba,
+                                               beiscsi_conn->beiscsi_conn_cid,
+                                               task->itt);
+       io_task->pwrb_handle->pio_handle = task;
+       io_task->conn = beiscsi_conn;
+
+       task->hdr = (struct iscsi_hdr *)&io_task->cmd_bhs->iscsi_hdr;
+       task->hdr_max = sizeof(struct be_cmd_bhs);
+
+       if (task->sc) {
+               spin_lock(&phba->io_sgl_lock);
+               io_task->psgl_handle = alloc_io_sgl_handle(phba);
+               spin_unlock(&phba->io_sgl_lock);
+               if (!io_task->psgl_handle)
+                       goto free_hndls;
+
+       } else {
+               io_task->scsi_cmnd = NULL;
+               if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) {
+                       if (!beiscsi_conn->login_in_progress) {
+                               spin_lock(&phba->mgmt_sgl_lock);
+                               io_task->psgl_handle = (struct sgl_handle *)
+                                               alloc_mgmt_sgl_handle(phba);
+                               spin_unlock(&phba->mgmt_sgl_lock);
+                               if (!io_task->psgl_handle)
+                                       goto free_hndls;
+
+                               beiscsi_conn->login_in_progress = 1;
+                               beiscsi_conn->plogin_sgl_handle =
+                                                       io_task->psgl_handle;
+                       } else {
+                               io_task->psgl_handle =
+                                               beiscsi_conn->plogin_sgl_handle;
+                       }
+               } else {
+                       spin_lock(&phba->mgmt_sgl_lock);
+                       io_task->psgl_handle = alloc_mgmt_sgl_handle(phba);
+                       spin_unlock(&phba->mgmt_sgl_lock);
+                       if (!io_task->psgl_handle)
+                               goto free_hndls;
+               }
+       }
+       itt = (itt_t) cpu_to_be32(((unsigned int)task->itt << 16) |
+                       (unsigned int)(io_task->psgl_handle->sgl_index));
+       io_task->cmd_bhs->iscsi_hdr.itt = itt;
+       return 0;
+
+free_hndls:
+       phwi_ctrlr = phba->phwi_ctrlr;
+       pwrb_context = &phwi_ctrlr->wrb_context[beiscsi_conn->beiscsi_conn_cid];
+       free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle);
+       io_task->pwrb_handle = NULL;
+       pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs,
+                     io_task->bhs_pa.u.a64.address);
+       SE_DEBUG(DBG_LVL_1, "Alloc of SGL_ICD Failed \n");
+       return -ENOMEM;
+}
+
+static void beiscsi_cleanup_task(struct iscsi_task *task)
+{
+       struct beiscsi_io_task *io_task = task->dd_data;
+       struct iscsi_conn *conn = task->conn;
+       struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+       struct beiscsi_hba *phba = beiscsi_conn->phba;
+       struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess;
+       struct hwi_wrb_context *pwrb_context;
+       struct hwi_controller *phwi_ctrlr;
+
+       phwi_ctrlr = phba->phwi_ctrlr;
+       pwrb_context = &phwi_ctrlr->wrb_context[beiscsi_conn->beiscsi_conn_cid];
+       if (io_task->pwrb_handle) {
+               free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle);
+               io_task->pwrb_handle = NULL;
+       }
+
+       if (io_task->cmd_bhs) {
+               pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs,
+                             io_task->bhs_pa.u.a64.address);
+       }
+
+       if (task->sc) {
+               if (io_task->psgl_handle) {
+                       spin_lock(&phba->io_sgl_lock);
+                       free_io_sgl_handle(phba, io_task->psgl_handle);
+                       spin_unlock(&phba->io_sgl_lock);
+                       io_task->psgl_handle = NULL;
+               }
+       } else {
+               if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN)
+                       return;
+               if (io_task->psgl_handle) {
+                       spin_lock(&phba->mgmt_sgl_lock);
+                       free_mgmt_sgl_handle(phba, io_task->psgl_handle);
+                       spin_unlock(&phba->mgmt_sgl_lock);
+                       io_task->psgl_handle = NULL;
+               }
+       }
+}
+
+static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg,
+                         unsigned int num_sg, unsigned int xferlen,
+                         unsigned int writedir)
+{
+
+       struct beiscsi_io_task *io_task = task->dd_data;
+       struct iscsi_conn *conn = task->conn;
+       struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+       struct beiscsi_hba *phba = beiscsi_conn->phba;
+       struct iscsi_wrb *pwrb = NULL;
+       unsigned int doorbell = 0;
+
+       pwrb = io_task->pwrb_handle->pwrb;
+       io_task->cmd_bhs->iscsi_hdr.exp_statsn = 0;
+       io_task->bhs_len = sizeof(struct be_cmd_bhs);
+
+       if (writedir) {
+               SE_DEBUG(DBG_LVL_4, " WRITE Command \t");
+               memset(&io_task->cmd_bhs->iscsi_data_pdu, 0, 48);
+               AMAP_SET_BITS(struct amap_pdu_data_out, itt,
+                             &io_task->cmd_bhs->iscsi_data_pdu,
+                             (unsigned int)io_task->cmd_bhs->iscsi_hdr.itt);
+               AMAP_SET_BITS(struct amap_pdu_data_out, opcode,
+                             &io_task->cmd_bhs->iscsi_data_pdu,
+                             ISCSI_OPCODE_SCSI_DATA_OUT);
+               AMAP_SET_BITS(struct amap_pdu_data_out, final_bit,
+                             &io_task->cmd_bhs->iscsi_data_pdu, 1);
+               AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_WR_CMD);
+               AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1);
+       } else {
+               SE_DEBUG(DBG_LVL_4, "READ Command \t");
+               AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_RD_CMD);
+               AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
+       }
+       memcpy(&io_task->cmd_bhs->iscsi_data_pdu.
+              dw[offsetof(struct amap_pdu_data_out, lun) / 32],
+              io_task->cmd_bhs->iscsi_hdr.lun, sizeof(struct scsi_lun));
+
+       AMAP_SET_BITS(struct amap_iscsi_wrb, lun, pwrb,
+                     cpu_to_be16((unsigned short)io_task->cmd_bhs->iscsi_hdr.
+                                 lun[0]));
+       AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, xferlen);
+       AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb,
+                     io_task->pwrb_handle->wrb_index);
+       AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb,
+                     be32_to_cpu(task->cmdsn));
+       AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb,
+                     io_task->psgl_handle->sgl_index);
+
+       hwi_write_sgl(pwrb, sg, num_sg, io_task);
+
+       AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb,
+                     io_task->pwrb_handle->nxt_wrb_index);
+       be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb));
+
+       doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
+       doorbell |= (io_task->pwrb_handle->wrb_index &
+                    DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
+       doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
+
+       iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET);
+       return 0;
+}
+
+static int beiscsi_mtask(struct iscsi_task *task)
+{
+       struct beiscsi_io_task *aborted_io_task, *io_task = task->dd_data;
+       struct iscsi_conn *conn = task->conn;
+       struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+       struct beiscsi_hba *phba = beiscsi_conn->phba;
+       struct iscsi_wrb *pwrb = NULL;
+       unsigned int doorbell = 0;
+       struct iscsi_task *aborted_task;
+
+       pwrb = io_task->pwrb_handle->pwrb;
+       AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb,
+                     be32_to_cpu(task->cmdsn));
+       AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb,
+                     io_task->pwrb_handle->wrb_index);
+       AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb,
+                     io_task->psgl_handle->sgl_index);
+
+       switch (task->hdr->opcode & ISCSI_OPCODE_MASK) {
+       case ISCSI_OP_LOGIN:
+               AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, TGT_DM_CMD);
+               AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0);
+               AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 1);
+               hwi_write_buffer(pwrb, task);
+               break;
+       case ISCSI_OP_NOOP_OUT:
+               AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_RD_CMD);
+               hwi_write_buffer(pwrb, task);
+               break;
+       case ISCSI_OP_TEXT:
+               AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_WR_CMD);
+               AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1);
+               hwi_write_buffer(pwrb, task);
+               break;
+       case ISCSI_OP_SCSI_TMFUNC:
+               aborted_task = iscsi_itt_to_task(conn,
+                                       ((struct iscsi_tm *)task->hdr)->rtt);
+                if (!aborted_task)
+                       return 0;
+               aborted_io_task = aborted_task->dd_data;
+               if (!aborted_io_task->scsi_cmnd)
+                       return 0;
+
+               mgmt_invalidate_icds(phba,
+                                    aborted_io_task->psgl_handle->sgl_index,
+                                    beiscsi_conn->beiscsi_conn_cid);
+               AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_TMF_CMD);
+               AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0);
+               hwi_write_buffer(pwrb, task);
+               break;
+       case ISCSI_OP_LOGOUT:
+               AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0);
+               AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
+                               HWH_TYPE_LOGOUT);
+               hwi_write_buffer(pwrb, task);
+               break;
+
+       default:
+               SE_DEBUG(DBG_LVL_1, "opcode =%d Not supported \n",
+                        task->hdr->opcode & ISCSI_OPCODE_MASK);
+               return -EINVAL;
+       }
+
+       AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb,
+                     be32_to_cpu(task->data_count));
+       AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb,
+                     io_task->pwrb_handle->nxt_wrb_index);
+       be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb));
+
+       doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
+       doorbell |= (io_task->pwrb_handle->wrb_index &
+                    DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
+       doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
+       iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET);
+       return 0;
+}
+
+static int beiscsi_task_xmit(struct iscsi_task *task)
+{
+       struct iscsi_conn *conn = task->conn;
+       struct beiscsi_io_task *io_task = task->dd_data;
+       struct scsi_cmnd *sc = task->sc;
+       struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+       struct scatterlist *sg;
+       int num_sg;
+       unsigned int  writedir = 0, xferlen = 0;
+
+       SE_DEBUG(DBG_LVL_4, "\n cid=%d In beiscsi_task_xmit task=%p conn=%p \t"
+                "beiscsi_conn=%p \n", beiscsi_conn->beiscsi_conn_cid,
+                task, conn, beiscsi_conn);
+       if (!sc)
+               return beiscsi_mtask(task);
+
+       io_task->scsi_cmnd = sc;
+       num_sg = scsi_dma_map(sc);
+       if (num_sg < 0) {
+               SE_DEBUG(DBG_LVL_1, " scsi_dma_map Failed\n")
+               return num_sg;
+       }
+       SE_DEBUG(DBG_LVL_4, "xferlen=0x%08x scmd=%p num_sg=%d sernum=%lu\n",
+                 (scsi_bufflen(sc)), sc, num_sg, sc->serial_number);
+       xferlen = scsi_bufflen(sc);
+       sg = scsi_sglist(sc);
+       if (sc->sc_data_direction == DMA_TO_DEVICE) {
+               writedir = 1;
+               SE_DEBUG(DBG_LVL_4, "task->imm_count=0x%08x \n",
+                        task->imm_count);
+       } else
+               writedir = 0;
+       return beiscsi_iotask(task, sg, num_sg, xferlen, writedir);
+}
+
+static void beiscsi_remove(struct pci_dev *pcidev)
+{
+       struct beiscsi_hba *phba = NULL;
+
+       phba = (struct beiscsi_hba *)pci_get_drvdata(pcidev);
+       if (!phba) {
+               dev_err(&pcidev->dev, "beiscsi_remove called with no phba \n");
+               return;
+       }
+
+       hwi_disable_intr(phba);
+       if (phba->pcidev->irq)
+               free_irq(phba->pcidev->irq, phba);
+       destroy_workqueue(phba->wq);
+       if (blk_iopoll_enabled)
+               blk_iopoll_disable(&phba->iopoll);
+
+       beiscsi_clean_port(phba);
+       beiscsi_free_mem(phba);
+       beiscsi_unmap_pci_function(phba);
+       pci_free_consistent(phba->pcidev,
+                           phba->ctrl.mbox_mem_alloced.size,
+                           phba->ctrl.mbox_mem_alloced.va,
+                           phba->ctrl.mbox_mem_alloced.dma);
+       iscsi_host_remove(phba->shost);
+       pci_dev_put(phba->pcidev);
+       iscsi_host_free(phba->shost);
+}
+
+static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
+                               const struct pci_device_id *id)
+{
+       struct beiscsi_hba *phba = NULL;
+       int ret;
+
+       ret = beiscsi_enable_pci(pcidev);
+       if (ret < 0) {
+               shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
+                            "Failed to enable pci device \n");
+               return ret;
+       }
+
+       phba = beiscsi_hba_alloc(pcidev);
+       if (!phba) {
+               dev_err(&pcidev->dev, "beiscsi_dev_probe-"
+                       " Failed in beiscsi_hba_alloc \n");
+               goto disable_pci;
+       }
+
+       pci_set_drvdata(pcidev, phba);
+       ret = be_ctrl_init(phba, pcidev);
+       if (ret) {
+               shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
+                               "Failed in be_ctrl_init\n");
+               goto hba_free;
+       }
+
+       spin_lock_init(&phba->io_sgl_lock);
+       spin_lock_init(&phba->mgmt_sgl_lock);
+       spin_lock_init(&phba->isr_lock);
+       beiscsi_get_params(phba);
+       ret = beiscsi_init_port(phba);
+       if (ret < 0) {
+               shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
+                            "Failed in beiscsi_init_port\n");
+               goto free_port;
+       }
+
+       snprintf(phba->wq_name, sizeof(phba->wq_name), "beiscsi_q_irq%u",
+                phba->shost->host_no);
+       phba->wq = create_singlethread_workqueue(phba->wq_name);
+       if (!phba->wq) {
+               shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
+                               "Failed to allocate work queue\n");
+               goto free_twq;
+       }
+
+       INIT_WORK(&phba->work_cqs, beiscsi_process_all_cqs);
+
+       if (blk_iopoll_enabled) {
+               blk_iopoll_init(&phba->iopoll, be_iopoll_budget, be_iopoll);
+               blk_iopoll_enable(&phba->iopoll);
+       }
+
+       ret = beiscsi_init_irqs(phba);
+       if (ret < 0) {
+               shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
+                            "Failed to beiscsi_init_irqs\n");
+               goto free_blkenbld;
+       }
+       ret = hwi_enable_intr(phba);
+       if (ret < 0) {
+               shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
+                            "Failed to hwi_enable_intr\n");
+               goto free_ctrlr;
+       }
+
+       SE_DEBUG(DBG_LVL_8, "\n\n\n SUCCESS - DRIVER LOADED \n\n\n");
+       return 0;
+
+free_ctrlr:
+       if (phba->pcidev->irq)
+               free_irq(phba->pcidev->irq, phba);
+free_blkenbld:
+       destroy_workqueue(phba->wq);
+       if (blk_iopoll_enabled)
+               blk_iopoll_disable(&phba->iopoll);
+free_twq:
+       beiscsi_clean_port(phba);
+       beiscsi_free_mem(phba);
+free_port:
+       pci_free_consistent(phba->pcidev,
+                           phba->ctrl.mbox_mem_alloced.size,
+                           phba->ctrl.mbox_mem_alloced.va,
+                          phba->ctrl.mbox_mem_alloced.dma);
+       beiscsi_unmap_pci_function(phba);
+hba_free:
+       iscsi_host_remove(phba->shost);
+       pci_dev_put(phba->pcidev);
+       iscsi_host_free(phba->shost);
+disable_pci:
+       pci_disable_device(pcidev);
+       return ret;
+}
+
+struct iscsi_transport beiscsi_iscsi_transport = {
+       .owner = THIS_MODULE,
+       .name = DRV_NAME,
+       .caps = CAP_RECOVERY_L0 | CAP_HDRDGST |
+               CAP_MULTI_R2T | CAP_DATADGST | CAP_DATA_PATH_OFFLOAD,
+       .param_mask = ISCSI_MAX_RECV_DLENGTH |
+               ISCSI_MAX_XMIT_DLENGTH |
+               ISCSI_HDRDGST_EN |
+               ISCSI_DATADGST_EN |
+               ISCSI_INITIAL_R2T_EN |
+               ISCSI_MAX_R2T |
+               ISCSI_IMM_DATA_EN |
+               ISCSI_FIRST_BURST |
+               ISCSI_MAX_BURST |
+               ISCSI_PDU_INORDER_EN |
+               ISCSI_DATASEQ_INORDER_EN |
+               ISCSI_ERL |
+               ISCSI_CONN_PORT |
+               ISCSI_CONN_ADDRESS |
+               ISCSI_EXP_STATSN |
+               ISCSI_PERSISTENT_PORT |
+               ISCSI_PERSISTENT_ADDRESS |
+               ISCSI_TARGET_NAME | ISCSI_TPGT |
+               ISCSI_USERNAME | ISCSI_PASSWORD |
+               ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN |
+               ISCSI_FAST_ABORT | ISCSI_ABORT_TMO |
+               ISCSI_LU_RESET_TMO |
+               ISCSI_PING_TMO | ISCSI_RECV_TMO |
+               ISCSI_IFACE_NAME | ISCSI_INITIATOR_NAME,
+       .host_param_mask = ISCSI_HOST_HWADDRESS | ISCSI_HOST_IPADDRESS |
+                               ISCSI_HOST_INITIATOR_NAME,
+       .create_session = beiscsi_session_create,
+       .destroy_session = beiscsi_session_destroy,
+       .create_conn = beiscsi_conn_create,
+       .bind_conn = beiscsi_conn_bind,
+       .destroy_conn = iscsi_conn_teardown,
+       .set_param = beiscsi_set_param,
+       .get_conn_param = beiscsi_conn_get_param,
+       .get_session_param = iscsi_session_get_param,
+       .get_host_param = beiscsi_get_host_param,
+       .start_conn = beiscsi_conn_start,
+       .stop_conn = beiscsi_conn_stop,
+       .send_pdu = iscsi_conn_send_pdu,
+       .xmit_task = beiscsi_task_xmit,
+       .cleanup_task = beiscsi_cleanup_task,
+       .alloc_pdu = beiscsi_alloc_pdu,
+       .parse_pdu_itt = beiscsi_parse_pdu,
+       .get_stats = beiscsi_conn_get_stats,
+       .ep_connect = beiscsi_ep_connect,
+       .ep_poll = beiscsi_ep_poll,
+       .ep_disconnect = beiscsi_ep_disconnect,
+       .session_recovery_timedout = iscsi_session_recovery_timedout,
+};
+
+static struct pci_driver beiscsi_pci_driver = {
+       .name = DRV_NAME,
+       .probe = beiscsi_dev_probe,
+       .remove = beiscsi_remove,
+       .id_table = beiscsi_pci_id_table
+};
+
+static int __init beiscsi_module_init(void)
+{
+       int ret;
+
+       beiscsi_scsi_transport =
+                       iscsi_register_transport(&beiscsi_iscsi_transport);
+       if (!beiscsi_scsi_transport) {
+               SE_DEBUG(DBG_LVL_1,
+                        "beiscsi_module_init - Unable to  register beiscsi"
+                        "transport.\n");
+               ret = -ENOMEM;
+       }
+       SE_DEBUG(DBG_LVL_8, "In beiscsi_module_init, tt=%p \n",
+                &beiscsi_iscsi_transport);
+
+       ret = pci_register_driver(&beiscsi_pci_driver);
+       if (ret) {
+               SE_DEBUG(DBG_LVL_1,
+                        "beiscsi_module_init - Unable to  register"
+                        "beiscsi pci driver.\n");
+               goto unregister_iscsi_transport;
+       }
+       return 0;
+
+unregister_iscsi_transport:
+       iscsi_unregister_transport(&beiscsi_iscsi_transport);
+       return ret;
+}
+
+static void __exit beiscsi_module_exit(void)
+{
+       pci_unregister_driver(&beiscsi_pci_driver);
+       iscsi_unregister_transport(&beiscsi_iscsi_transport);
+}
+
+module_init(beiscsi_module_init);
+module_exit(beiscsi_module_exit);
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
new file mode 100644 (file)
index 0000000..53c9b70
--- /dev/null
@@ -0,0 +1,837 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Written by: Jayamohan Kallickal (jayamohank@serverengines.com)
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ *
+ */
+
+#ifndef _BEISCSI_MAIN_
+#define _BEISCSI_MAIN_
+
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/in.h>
+#include <linux/blk-iopoll.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/iscsi_proto.h>
+#include <scsi/libiscsi.h>
+#include <scsi/scsi_transport_iscsi.h>
+
+#include "be.h"
+
+
+
+#define DRV_NAME               "be2iscsi"
+#define BUILD_STR              "2.0.527.0"
+
+#define BE_NAME                        "ServerEngines BladeEngine2" \
+                               "Linux iSCSI Driver version" BUILD_STR
+#define DRV_DESC               BE_NAME " " "Driver"
+
+#define BE_VENDOR_ID           0x19A2
+#define BE_DEVICE_ID1          0x212
+#define OC_DEVICE_ID1          0x702
+#define OC_DEVICE_ID2          0x703
+
+#define BE2_MAX_SESSIONS       64
+#define BE2_CMDS_PER_CXN       128
+#define BE2_LOGOUTS            BE2_MAX_SESSIONS
+#define BE2_TMFS               16
+#define BE2_NOPOUT_REQ         16
+#define BE2_ASYNCPDUS          BE2_MAX_SESSIONS
+#define BE2_MAX_ICDS           2048
+#define BE2_SGE                        32
+#define BE2_DEFPDU_HDR_SZ      64
+#define BE2_DEFPDU_DATA_SZ     8192
+#define BE2_IO_DEPTH \
+       (BE2_MAX_ICDS / 2 - (BE2_LOGOUTS + BE2_TMFS + BE2_NOPOUT_REQ))
+
+#define BEISCSI_SGLIST_ELEMENTS        BE2_SGE
+
+#define BEISCSI_MAX_CMNDS      1024    /* Max IO's per Ctrlr sht->can_queue */
+#define BEISCSI_CMD_PER_LUN    128     /* scsi_host->cmd_per_lun */
+#define BEISCSI_MAX_SECTORS    2048    /* scsi_host->max_sectors */
+
+#define BEISCSI_MAX_CMD_LEN    16      /* scsi_host->max_cmd_len */
+#define BEISCSI_NUM_MAX_LUN    256     /* scsi_host->max_lun */
+#define BEISCSI_NUM_DEVICES_SUPPORTED  0x01
+#define BEISCSI_MAX_FRAGS_INIT 192
+#define BE_NUM_MSIX_ENTRIES    1
+#define MPU_EP_SEMAPHORE       0xac
+
+#define BE_SENSE_INFO_SIZE             258
+#define BE_ISCSI_PDU_HEADER_SIZE       64
+#define BE_MIN_MEM_SIZE                        16384
+
+#define IIOC_SCSI_DATA                  0x05   /* Write Operation */
+
+#define DBG_LVL                                0x00000001
+#define DBG_LVL_1                      0x00000001
+#define DBG_LVL_2                      0x00000002
+#define DBG_LVL_3                      0x00000004
+#define DBG_LVL_4                      0x00000008
+#define DBG_LVL_5                      0x00000010
+#define DBG_LVL_6                      0x00000020
+#define DBG_LVL_7                      0x00000040
+#define DBG_LVL_8                      0x00000080
+
+#define SE_DEBUG(debug_mask, fmt, args...)             \
+do {                                                   \
+       if (debug_mask & DBG_LVL) {                     \
+               printk(KERN_ERR "(%s():%d):", __func__, __LINE__);\
+               printk(fmt, ##args);                    \
+       }                                               \
+} while (0);
+
+/**
+ * hardware needs the async PDU buffers to be posted in multiples of 8
+ * So have atleast 8 of them by default
+ */
+
+#define HWI_GET_ASYNC_PDU_CTX(phwi)    (phwi->phwi_ctxt->pasync_ctx)
+
+/********* Memory BAR register ************/
+#define PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET     0xfc
+/**
+ * Host Interrupt Enable, if set interrupts are enabled although "PCI Interrupt
+ * Disable" may still globally block interrupts in addition to individual
+ * interrupt masks; a mechanism for the device driver to block all interrupts
+ * atomically without having to arbitrate for the PCI Interrupt Disable bit
+ * with the OS.
+ */
+#define MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK     (1 << 29)       /* bit 29 */
+
+/********* ISR0 Register offset **********/
+#define CEV_ISR0_OFFSET                        0xC18
+#define CEV_ISR_SIZE                           4
+
+/**
+ * Macros for reading/writing a protection domain or CSR registers
+ * in BladeEngine.
+ */
+
+#define DB_TXULP0_OFFSET 0x40
+#define DB_RXULP0_OFFSET 0xA0
+/********* Event Q door bell *************/
+#define DB_EQ_OFFSET                   DB_CQ_OFFSET
+#define DB_EQ_RING_ID_MASK             0x1FF   /* bits 0 - 8 */
+/* Clear the interrupt for this eq */
+#define DB_EQ_CLR_SHIFT                        (9)     /* bit 9 */
+/* Must be 1 */
+#define DB_EQ_EVNT_SHIFT               (10)    /* bit 10 */
+/* Number of event entries processed */
+#define DB_EQ_NUM_POPPED_SHIFT         (16)    /* bits 16 - 28 */
+/* Rearm bit */
+#define DB_EQ_REARM_SHIFT              (29)    /* bit 29 */
+
+/********* Compl Q door bell *************/
+#define DB_CQ_OFFSET                   0x120
+#define DB_CQ_RING_ID_MASK             0x3FF   /* bits 0 - 9 */
+/* Number of event entries processed */
+#define DB_CQ_NUM_POPPED_SHIFT         (16)    /* bits 16 - 28 */
+/* Rearm bit */
+#define DB_CQ_REARM_SHIFT              (29)    /* bit 29 */
+
+#define GET_HWI_CONTROLLER_WS(pc)      (pc->phwi_ctrlr)
+#define HWI_GET_DEF_BUFQ_ID(pc) (((struct hwi_controller *)\
+               (GET_HWI_CONTROLLER_WS(pc)))->default_pdu_data.id)
+#define HWI_GET_DEF_HDRQ_ID(pc) (((struct hwi_controller *)\
+               (GET_HWI_CONTROLLER_WS(pc)))->default_pdu_hdr.id)
+
+#define PAGES_REQUIRED(x) \
+       ((x < PAGE_SIZE) ? 1 :  ((x + PAGE_SIZE - 1) / PAGE_SIZE))
+
+enum be_mem_enum {
+       HWI_MEM_ADDN_CONTEXT,
+       HWI_MEM_CQ,
+       HWI_MEM_EQ,
+       HWI_MEM_WRB,
+       HWI_MEM_WRBH,
+       HWI_MEM_SGLH,   /* 5 */
+       HWI_MEM_SGE,
+       HWI_MEM_ASYNC_HEADER_BUF,
+       HWI_MEM_ASYNC_DATA_BUF,
+       HWI_MEM_ASYNC_HEADER_RING,
+       HWI_MEM_ASYNC_DATA_RING,        /* 10 */
+       HWI_MEM_ASYNC_HEADER_HANDLE,
+       HWI_MEM_ASYNC_DATA_HANDLE,
+       HWI_MEM_ASYNC_PDU_CONTEXT,
+       ISCSI_MEM_GLOBAL_HEADER,
+       SE_MEM_MAX      /* 15 */
+};
+
+struct be_bus_address32 {
+       unsigned int address_lo;
+       unsigned int address_hi;
+};
+
+struct be_bus_address64 {
+       unsigned long long address;
+};
+
+struct be_bus_address {
+       union {
+               struct be_bus_address32 a32;
+               struct be_bus_address64 a64;
+       } u;
+};
+
+struct mem_array {
+       struct be_bus_address bus_address;      /* Bus address of location */
+       void *virtual_address;          /* virtual address to the location */
+       unsigned int size;              /* Size required by memory block */
+};
+
+struct be_mem_descriptor {
+       unsigned int index;     /* Index of this memory parameter */
+       unsigned int category;  /* type indicates cached/non-cached */
+       unsigned int num_elements;      /* number of elements in this
+                                        * descriptor
+                                        */
+       unsigned int alignment_mask;    /* Alignment mask for this block */
+       unsigned int size_in_bytes;     /* Size required by memory block */
+       struct mem_array *mem_array;
+};
+
+struct sgl_handle {
+       unsigned int sgl_index;
+       struct iscsi_sge *pfrag;
+};
+
+struct hba_parameters {
+       unsigned int ios_per_ctrl;
+       unsigned int cxns_per_ctrl;
+       unsigned int asyncpdus_per_ctrl;
+       unsigned int icds_per_ctrl;
+       unsigned int num_sge_per_io;
+       unsigned int defpdu_hdr_sz;
+       unsigned int defpdu_data_sz;
+       unsigned int num_cq_entries;
+       unsigned int num_eq_entries;
+       unsigned int wrbs_per_cxn;
+       unsigned int crashmode;
+       unsigned int hba_num;
+
+       unsigned int mgmt_ws_sz;
+       unsigned int hwi_ws_sz;
+
+       unsigned int eto;
+       unsigned int ldto;
+
+       unsigned int dbg_flags;
+       unsigned int num_cxn;
+
+       unsigned int eq_timer;
+       /**
+        * These are calculated from other params. They're here
+        * for debug purposes
+        */
+       unsigned int num_mcc_pages;
+       unsigned int num_mcc_cq_pages;
+       unsigned int num_cq_pages;
+       unsigned int num_eq_pages;
+
+       unsigned int num_async_pdu_buf_pages;
+       unsigned int num_async_pdu_buf_sgl_pages;
+       unsigned int num_async_pdu_buf_cq_pages;
+
+       unsigned int num_async_pdu_hdr_pages;
+       unsigned int num_async_pdu_hdr_sgl_pages;
+       unsigned int num_async_pdu_hdr_cq_pages;
+
+       unsigned int num_sge;
+};
+
+struct beiscsi_hba {
+       struct hba_parameters params;
+       struct hwi_controller *phwi_ctrlr;
+       unsigned int mem_req[SE_MEM_MAX];
+       /* PCI BAR mapped addresses */
+       u8 __iomem *csr_va;     /* CSR */
+       u8 __iomem *db_va;      /* Door  Bell  */
+       u8 __iomem *pci_va;     /* PCI Config */
+       struct be_bus_address csr_pa;   /* CSR */
+       struct be_bus_address db_pa;    /* CSR */
+       struct be_bus_address pci_pa;   /* CSR */
+       /* PCI representation of our HBA */
+       struct pci_dev *pcidev;
+       unsigned int state;
+       unsigned short asic_revision;
+       struct blk_iopoll       iopoll;
+       struct be_mem_descriptor *init_mem;
+
+       unsigned short io_sgl_alloc_index;
+       unsigned short io_sgl_free_index;
+       unsigned short io_sgl_hndl_avbl;
+       struct sgl_handle **io_sgl_hndl_base;
+
+       unsigned short eh_sgl_alloc_index;
+       unsigned short eh_sgl_free_index;
+       unsigned short eh_sgl_hndl_avbl;
+       struct sgl_handle **eh_sgl_hndl_base;
+       spinlock_t io_sgl_lock;
+       spinlock_t mgmt_sgl_lock;
+       spinlock_t isr_lock;
+       unsigned int age;
+       unsigned short avlbl_cids;
+       unsigned short cid_alloc;
+       unsigned short cid_free;
+       struct beiscsi_conn *conn_table[BE2_MAX_SESSIONS * 2];
+       struct list_head hba_queue;
+       unsigned short *cid_array;
+       struct iscsi_endpoint **ep_array;
+       struct Scsi_Host *shost;
+       struct {
+               /**
+                * group together since they are used most frequently
+                * for cid to cri conversion
+                */
+               unsigned int iscsi_cid_start;
+        &