diff options
| author |   Andy Gospodarek <gospo@broadcom.com> | 2016-11-22 13:14:08 -0500 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-11-24 15:39:21 -0500 |
| commit | 867d1212bf3c53dc057f7bca72155048cc51d18c (patch) | |
| tree | 81799be8dfc1d0731cc40ddb822ca1b64a63d981 /drivers | |
| parent | udplite: call proper backlog handlers (diff) | |
| download | linux-dev-867d1212bf3c53dc057f7bca72155048cc51d18c.tar.xz linux-dev-867d1212bf3c53dc057f7bca72155048cc51d18c.zip | |
bnxt: do not busy-poll when link is down
When busy polling while a link is down (during a link-flap test), TX
timeouts were observed as well as the following messages in the ring
buffer:
bnxt_en 0008:01:00.2 enP8p1s0f2d2: Resp cmpl intr err msg: 0x51
bnxt_en 0008:01:00.2 enP8p1s0f2d2: hwrm_ring_free tx failed. rc:-1
bnxt_en 0008:01:00.2 enP8p1s0f2d2: Resp cmpl intr err msg: 0x51
bnxt_en 0008:01:00.2 enP8p1s0f2d2: hwrm_ring_free rx failed. rc:-1
These were resolved by checking for link status and returning if link
was not up.
Signed-off-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Tested-by: Rob Miller <rob.miller@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index e41d8bd094ae..ee1a803aa11a 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -1811,6 +1811,9 @@ static int bnxt_busy_poll(struct napi_struct *napi) if (atomic_read(&bp->intr_sem) != 0) return LL_FLUSH_FAILED; + if (!bp->link_info.link_up) + return LL_FLUSH_FAILED; + if (!bnxt_lock_poll(bnapi)) return LL_FLUSH_BUSY; |