diff options
| author | Eilon Greenstein | 2009-01-14 07:43:56 +0100 |
|---|---|---|
| committer | David S. Miller | 2009-01-20 01:20:09 +0100 |
| commit | b4661739c67acd15a02f8e112f8cc52d24b609ed (patch) | |
| tree | f9cc188bc66fe5b92d64b7be3dfcc2768edc8731 /drivers/net/bnx2x_main.c | |
| parent | bnx2x: Handling probe failures (diff) | |
| download | kernel-qcow2-linux-b4661739c67acd15a02f8e112f8cc52d24b609ed.tar.gz kernel-qcow2-linux-b4661739c67acd15a02f8e112f8cc52d24b609ed.tar.xz kernel-qcow2-linux-b4661739c67acd15a02f8e112f8cc52d24b609ed.zip | |
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>
Diffstat (limited to 'drivers/net/bnx2x_main.c')
| -rw-r--r-- | drivers/net/bnx2x_main.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c index 911067586a4a..70fc61033ddf 100644 --- a/drivers/net/bnx2x_main.c +++ b/drivers/net/bnx2x_main.c @@ -6874,10 +6874,6 @@ static void __devinit bnx2x_undi_unload(struct bnx2x *bp) */ 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 @@ static void __devinit bnx2x_undi_unload(struct bnx2x *bp) 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 @@ static void __devinit bnx2x_undi_unload(struct bnx2x *bp) 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 @@ static void __devinit bnx2x_undi_unload(struct bnx2x *bp) 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); } } |