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net/sfc/base: let caller know that queue is already flushed

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Tx/Rx queue may be already flushed due to Tx/Rx error on the queue or
MC reboot. Caller needs to know that the queue is already flushed to
avoid waiting for flush done event.

Signed-off-by: Andy Moreton <amoreton@solarflare.com>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
This commit is contained in:
Andy Moreton 2017-05-27 08:55:31 +01:00 committed by Ferruh Yigit
parent 7236d2bfe0
commit af39bcc612
3 changed files with 36 additions and 7 deletions
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7
drivers/net/sfc/base/ef10_ev.c
View File

@ -431,7 +431,12 @@ efx_mcdi_fini_evq(
return (0);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
/*
* EALREADY is not an error, but indicates that the MC has rebooted and
* that the EVQ has already been destroyed.
*/
if (rc != EALREADY)
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}

18
drivers/net/sfc/base/ef10_rx.c
View File

@ -137,7 +137,7 @@ efx_mcdi_fini_rxq(
efx_mcdi_execute_quiet(enp, &req);
if ((req.emr_rc != 0) && (req.emr_rc != EALREADY)) {
if (req.emr_rc != 0) {
rc = req.emr_rc;
goto fail1;
}
@ -145,7 +145,12 @@ efx_mcdi_fini_rxq(
return (0);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
/*
* EALREADY is not an error, but indicates that the MC has rebooted and
* that the RXQ has already been destroyed.
*/
if (rc != EALREADY)
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
@ -802,7 +807,14 @@ ef10_rx_qflush(
return (0);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
/*
* EALREADY is not an error, but indicates that the MC has rebooted and
* that the RXQ has already been destroyed. Callers need to know that
* the RXQ flush has completed to avoid waiting until timeout for a
* flush done event that will not be delivered.
*/
if (rc != EALREADY)
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}

18
drivers/net/sfc/base/ef10_tx.c
View File

@ -148,7 +148,7 @@ efx_mcdi_fini_txq(
efx_mcdi_execute_quiet(enp, &req);
if ((req.emr_rc != 0) && (req.emr_rc != EALREADY)) {
if (req.emr_rc != 0) {
rc = req.emr_rc;
goto fail1;
}
@ -156,7 +156,12 @@ efx_mcdi_fini_txq(
return (0);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
/*
* EALREADY is not an error, but indicates that the MC has rebooted and
* that the TXQ has already been destroyed.
*/
if (rc != EALREADY)
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
@ -675,7 +680,14 @@ ef10_tx_qflush(
return (0);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
/*
* EALREADY is not an error, but indicates that the MC has rebooted and
* that the TXQ has already been destroyed. Callers need to know that
* the TXQ flush has completed to avoid waiting until timeout for a
* flush done event that will not be delivered.
*/
if (rc != EALREADY)
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}