cnic: Add kcq2 support on 57712
Michael Chan [Thu, 23 Dec 2010 07:43:03 +0000 (07:43 +0000)]
The kcq2 (2nd kernel work queue) is used by FCoE on 57712 devices.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/cnic.c
drivers/net/cnic.h

index 36c1578..6ce7398 100644 (file)
@@ -843,6 +843,7 @@ static void cnic_free_resc(struct cnic_dev *dev)
        cnic_free_dma(dev, &cp->conn_buf_info);
        cnic_free_dma(dev, &cp->kwq_info);
        cnic_free_dma(dev, &cp->kwq_16_data_info);
+       cnic_free_dma(dev, &cp->kcq2.dma);
        cnic_free_dma(dev, &cp->kcq1.dma);
        kfree(cp->iscsi_tbl);
        cp->iscsi_tbl = NULL;
@@ -1183,6 +1184,12 @@ static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev)
        if (ret)
                goto error;
 
+       if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
+               ret = cnic_alloc_kcq(dev, &cp->kcq2);
+               if (ret)
+                       goto error;
+       }
+
        pages = PAGE_ALIGN(BNX2X_ISCSI_NUM_CONNECTIONS *
                           BNX2X_ISCSI_CONN_BUF_SIZE) / PAGE_SIZE;
        ret = cnic_alloc_dma(dev, &cp->conn_buf_info, pages, 1);
@@ -2493,12 +2500,19 @@ static void cnic_service_bnx2x_bh(unsigned long data)
        status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq1);
 
        CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx + MAX_KCQ_IDX);
-       if (BNX2X_CHIP_IS_E2(cp->chip_id))
+
+       if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
+               status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq2);
+
+               CNIC_WR16(dev, cp->kcq2.io_addr, cp->kcq2.sw_prod_idx +
+                         MAX_KCQ_IDX);
+
                cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF,
                                status_idx, IGU_INT_ENABLE, 1);
-       else
+       } else {
                cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, USTORM_ID,
                                   status_idx, IGU_INT_ENABLE, 1);
+       }
 }
 
 static int cnic_service_bnx2x(void *data, void *status_blk)
@@ -4381,6 +4395,44 @@ static void cnic_get_bnx2x_iscsi_info(struct cnic_dev *dev)
                dev->max_iscsi_conn = 0;
 }
 
+static void cnic_init_bnx2x_kcq(struct cnic_dev *dev)
+{
+       struct cnic_local *cp = dev->cnic_priv;
+       u32 pfid = cp->pfid;
+
+       cp->kcq1.io_addr = BAR_CSTRORM_INTMEM +
+                          CSTORM_ISCSI_EQ_PROD_OFFSET(pfid, 0);
+       cp->kcq1.sw_prod_idx = 0;
+
+       if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
+               struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
+
+               cp->kcq1.hw_prod_idx_ptr =
+                       &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
+               cp->kcq1.status_idx_ptr =
+                       &sb->sb.running_index[SM_RX_ID];
+       } else {
+               struct host_hc_status_block_e1x *sb = cp->status_blk.gen;
+
+               cp->kcq1.hw_prod_idx_ptr =
+                       &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
+               cp->kcq1.status_idx_ptr =
+                       &sb->sb.running_index[SM_RX_ID];
+       }
+
+       if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
+               struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
+
+               cp->kcq2.io_addr = BAR_USTRORM_INTMEM +
+                                       USTORM_FCOE_EQ_PROD_OFFSET(pfid);
+               cp->kcq2.sw_prod_idx = 0;
+               cp->kcq2.hw_prod_idx_ptr =
+                       &sb->sb.index_values[HC_INDEX_FCOE_EQ_CONS];
+               cp->kcq2.status_idx_ptr =
+                       &sb->sb.running_index[SM_RX_ID];
+       }
+}
+
 static int cnic_start_bnx2x_hw(struct cnic_dev *dev)
 {
        struct cnic_local *cp = dev->cnic_priv;
@@ -4413,25 +4465,7 @@ static int cnic_start_bnx2x_hw(struct cnic_dev *dev)
 
        cp->bnx2x_igu_sb_id = ethdev->irq_arr[0].status_blk_num2;
 
-       cp->kcq1.io_addr = BAR_CSTRORM_INTMEM +
-                         CSTORM_ISCSI_EQ_PROD_OFFSET(pfid, 0);
-       cp->kcq1.sw_prod_idx = 0;
-
-       if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
-               struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
-
-               cp->kcq1.hw_prod_idx_ptr =
-                       &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
-               cp->kcq1.status_idx_ptr =
-                       &sb->sb.running_index[SM_RX_ID];
-       } else {
-               struct host_hc_status_block_e1x *sb = cp->status_blk.gen;
-
-               cp->kcq1.hw_prod_idx_ptr =
-                       &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
-               cp->kcq1.status_idx_ptr =
-                       &sb->sb.running_index[SM_RX_ID];
-       }
+       cnic_init_bnx2x_kcq(dev);
 
        cnic_get_bnx2x_iscsi_info(dev);
 
index fb3b753..e46b4c1 100644 (file)
@@ -258,6 +258,7 @@ struct cnic_local {
        u16             kwq_con_idx;
 
        struct kcq_info kcq1;
+       struct kcq_info kcq2;
 
        union {
                void                            *gen;