[SCSI] bnx2i: Fix context mapping issue for architectures with PAGE_SIZE != 4096
Anil Veerabhadrappa [Fri, 11 Sep 2009 17:38:26 +0000 (10:38 -0700)]
5706/5708/5709 devices allow driver/user to set page size. By default it is
set to 4096.  Current drivers do not program this register based on
architecture type (e.g. x86 = 4K, IA64 = 16K) and by choice lets device use
the defaults. So while mapping connection context memory (doorebll registers),
driver has to match page size used by the device. Included change fixes the
issue we uncovered during IA64 testing

Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

drivers/scsi/bnx2i/bnx2i.h
drivers/scsi/bnx2i/bnx2i_hwi.c

index d7576f2..5edde1a 100644 (file)
 #define CTX_OFFSET                     0x10000
 #define MAX_CID_CNT                    0x4000
 
+#define BNX2I_570X_PAGE_SIZE_DEFAULT   4096
+
 /* 5709 context registers */
 #define BNX2_MQ_CONFIG2                        0x00003d00
 #define BNX2_MQ_CONFIG2_CONT_SZ                (0x7L<<4)
index 41e1b0e..5c8d763 100644 (file)
@@ -2386,7 +2386,7 @@ int bnx2i_map_ep_dbell_regs(struct bnx2i_endpoint *ep)
                ctx_sz = (config2 & BNX2_MQ_CONFIG2_CONT_SZ) >> 3;
                if (ctx_sz)
                        reg_off = CTX_OFFSET + MAX_CID_CNT * MB_KERNEL_CTX_SIZE
-                                 + PAGE_SIZE *
+                                 + BNX2I_570X_PAGE_SIZE_DEFAULT *
                                  (((cid_num - first_l4l5) / ctx_sz) + 256);
                else
                        reg_off = CTX_OFFSET + (MB_KERNEL_CTX_SIZE * cid_num);