Author: arybchik Date: Fri Nov 23 07:50:56 2018 New Revision: 340800 URL: https://svnweb.freebsd.org/changeset/base/340800
Log: sfxge(4): let caller know that queue is already flushed 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. Submitted by: Andy Moreton <amoreton at solarflare.com> Sponsored by: Solarflare Communications, Inc. MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D18070 Modified: head/sys/dev/sfxge/common/ef10_ev.c head/sys/dev/sfxge/common/ef10_rx.c head/sys/dev/sfxge/common/ef10_tx.c Modified: head/sys/dev/sfxge/common/ef10_ev.c ============================================================================== --- head/sys/dev/sfxge/common/ef10_ev.c Fri Nov 23 07:50:45 2018 (r340799) +++ head/sys/dev/sfxge/common/ef10_ev.c Fri Nov 23 07:50:56 2018 (r340800) @@ -434,7 +434,12 @@ 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); } Modified: head/sys/dev/sfxge/common/ef10_rx.c ============================================================================== --- head/sys/dev/sfxge/common/ef10_rx.c Fri Nov 23 07:50:45 2018 (r340799) +++ head/sys/dev/sfxge/common/ef10_rx.c Fri Nov 23 07:50:56 2018 (r340800) @@ -140,7 +140,7 @@ 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; } @@ -148,7 +148,12 @@ 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); } @@ -819,7 +824,14 @@ 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); } Modified: head/sys/dev/sfxge/common/ef10_tx.c ============================================================================== --- head/sys/dev/sfxge/common/ef10_tx.c Fri Nov 23 07:50:45 2018 (r340799) +++ head/sys/dev/sfxge/common/ef10_tx.c Fri Nov 23 07:50:56 2018 (r340800) @@ -151,7 +151,7 @@ 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; } @@ -159,7 +159,12 @@ 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); } @@ -690,7 +695,14 @@ ef10_tx_qpace( 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); } _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
