From: Bart Van Assche Date: Fri, 9 Aug 2019 03:01:54 +0000 (-0700) Subject: scsi: qla2xxx: Complain if waiting for pending commands times out X-Git-Tag: v5.4-rc1~89^2~155 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=fcef08932db7770cc176555ac2f08574b1e43af6;p=linux.git scsi: qla2xxx: Complain if waiting for pending commands times out Such a timeout is a severe issue. Hence complain if waiting for pending commands times out. This patch fixes a small bug: it modifies qla82xx_chip_reset_cleanup() such that the "Done waiting" message is reported if qla82xx_chip_reset_cleanup() succeeded instead of if that function failed. Cc: Himanshu Madhani Signed-off-by: Bart Van Assche Tested-by: Himanshu Madhani Reviewed-by: Himanshu Madhani Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 1fd9a086748e..2d9a379fd8fb 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -6634,7 +6634,8 @@ qla2x00_quiesce_io(scsi_qla_host_t *vha) LOOP_DOWN_TIME); } /* Wait for pending cmds to complete */ - qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST); + WARN_ON_ONCE(qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) + != QLA_SUCCESS); } void diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c index c1c832271ccb..a91d426add75 100644 --- a/drivers/scsi/qla2xxx/qla_nx.c +++ b/drivers/scsi/qla2xxx/qla_nx.c @@ -3710,10 +3710,12 @@ qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha) /* Wait for pending cmds (physical and virtual) to complete */ if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, - WAIT_HOST)) { + WAIT_HOST) == QLA_SUCCESS) { ql_dbg(ql_dbg_init, vha, 0x00b3, "Done wait for " "pending commands.\n"); + } else { + WARN_ON_ONCE(true); } } } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 2ba06a84c501..e91681cbd75d 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1059,8 +1059,8 @@ qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd, * cmd = Scsi Command to wait on. * * Return: - * Not Found : 0 - * Found : 1 + * Completed in time : QLA_SUCCESS + * Did not complete in time : QLA_FUNCTION_FAILED */ static int qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd) @@ -1372,6 +1372,9 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd) return ret; } +/* + * Returns: QLA_SUCCESS or QLA_FUNCTION_FAILED. + */ int qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t, uint64_t l, enum nexus_wait_type type)