bnx2x: Potential race after iSCSI boot
The lock was release too soon. Make sure the HW is marked as locked until the
boot driver was unloaded from FW perspective
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index 9110675..70fc610 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -6874,10 +6874,6 @@
*/
bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_UNDI);
val = REG_RD(bp, DORQ_REG_NORM_CID_OFST);
- if (val == 0x7)
- REG_WR(bp, DORQ_REG_NORM_CID_OFST, 0);
- bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_UNDI);
-
if (val == 0x7) {
u32 reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS;
/* save our func */
@@ -6885,6 +6881,9 @@
u32 swap_en;
u32 swap_val;
+ /* clear the UNDI indication */
+ REG_WR(bp, DORQ_REG_NORM_CID_OFST, 0);
+
BNX2X_DEV_INFO("UNDI is active! reset device\n");
/* try unload UNDI on port 0 */
@@ -6910,6 +6909,9 @@
bnx2x_fw_command(bp, reset_code);
}
+ /* now it's safe to release the lock */
+ bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_UNDI);
+
REG_WR(bp, (BP_PORT(bp) ? HC_REG_CONFIG_1 :
HC_REG_CONFIG_0), 0x1000);
@@ -6954,7 +6956,9 @@
bp->fw_seq =
(SHMEM_RD(bp, func_mb[bp->func].drv_mb_header) &
DRV_MSG_SEQ_NUMBER_MASK);
- }
+
+ } else
+ bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_UNDI);
}
}