cnic: Fix L2CTX_STATUSB_NUM offset in context memory.

The BNX2_L2CTX_STATUSB_NUM definition needs to be changed to match
the recent firmware update:

commit 078b0735881c7969aaf21469f3577831cddd9f8c
bnx2: Update firmware to 5.0.0.j3.

Without the fix, bnx2 can crash intermittently in bnx2_rx_int() when
iSCSI is enabled.

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

2 files changed, 9 insertions, 6 deletions

diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h
index 6c7f795d12de..a4d83409f205 100644
--- a/drivers/net/bnx2.h
+++ b/drivers/net/bnx2.h
@@ -361,9 +361,12 @@ struct l2_fhdr {
 #define BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE        (1<<28)
 
 #define BNX2_L2CTX_HOST_BDIDX                           0x00000004
-#define BNX2_L2CTX_STATUSB_NUM_SHIFT                     16
-#define BNX2_L2CTX_STATUSB_NUM(sb_id)                    \
-        (((sb_id) > 0) ? (((sb_id) + 7) << BNX2_L2CTX_STATUSB_NUM_SHIFT) : 0)
+#define BNX2_L2CTX_L5_STATUSB_NUM_SHIFT                  16
+#define BNX2_L2CTX_L2_STATUSB_NUM_SHIFT                  24
+#define BNX2_L2CTX_L5_STATUSB_NUM(sb_id)                \
+        (((sb_id) > 0) ? (((sb_id) + 7) << BNX2_L2CTX_L5_STATUSB_NUM_SHIFT) : 0)
+#define BNX2_L2CTX_L2_STATUSB_NUM(sb_id)                \
+        (((sb_id) > 0) ? (((sb_id) + 7) << BNX2_L2CTX_L2_STATUSB_NUM_SHIFT) : 0)
 #define BNX2_L2CTX_HOST_BSEQ                            0x00000008
 #define BNX2_L2CTX_NX_BSEQ                              0x0000000c
 #define BNX2_L2CTX_NX_BDHADDR_HI                        0x00000010
diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c
index 46c87ec7960c..3bf1b04f2cab 100644
--- a/drivers/net/cnic.c
+++ b/drivers/net/cnic.c
@@ -2264,9 +2264,9 @@ static void cnic_init_bnx2_rx_ring(struct cnic_dev *dev)
         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_CTX_TYPE, val);
 
         if (sb_id == 0)
-                val = 2 << BNX2_L2CTX_STATUSB_NUM_SHIFT;
+                val = 2 << BNX2_L2CTX_L2_STATUSB_NUM_SHIFT;
         else
-                val = BNX2_L2CTX_STATUSB_NUM(sb_id);
+                val = BNX2_L2CTX_L2_STATUSB_NUM(sb_id);
         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_HOST_BDIDX, val);
 
         rxbd = (struct rx_bd *) (cp->l2_ring + BCM_PAGE_SIZE);
@@ -2423,7 +2423,7 @@ static int cnic_start_bnx2_hw(struct cnic_dev *dev)
         cp->int_num = 0;
         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
                 u32 sb_id = cp->status_blk_num;
-                u32 sb = BNX2_L2CTX_STATUSB_NUM(sb_id);
+                u32 sb = BNX2_L2CTX_L5_STATUSB_NUM(sb_id);
 
                 cp->int_num = sb_id << BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT;
                 cnic_ctx_wr(dev, cp->kwq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);