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Code Issues Releases Activity

Remove mps_request_polled(), it's redundant to mps_wait_command()

Browse Source 
Obtained from:	Netflix, Inc.
This commit is contained in:
Scott Long 2015-08-10 09:02:34 +00:00
parent 44f2b87692
commit ac7d1ed24c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=286568
3 changed files with 14 additions and 60 deletions
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61
sys/dev/mps/mps.c
View File

@ -2084,7 +2084,7 @@ mps_update_events(struct mps_softc *sc, struct mps_event_handle *handle,
cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
cm->cm_data = NULL;
error = mps_request_polled(sc, cm);
error = mps_wait_command(sc, cm, 60, 0);
reply = (MPI2_EVENT_NOTIFICATION_REPLY *)cm->cm_reply;
if ((reply == NULL) ||
(reply->IOCStatus & MPI2_IOCSTATUS_MASK) != MPI2_IOCSTATUS_SUCCESS)
@ -2508,18 +2508,21 @@ mps_wait_command(struct mps_softc *sc, struct mps_command *cm, int timeout,
return EBUSY;
cm->cm_complete = NULL;
cm->cm_flags |= (MPS_CM_FLAGS_WAKEUP + MPS_CM_FLAGS_POLLED);
cm->cm_flags |= MPS_CM_FLAGS_POLLED;
error = mps_map_command(sc, cm);
if ((error != 0) && (error != EINPROGRESS))
return (error);
// Check for context and wait for 50 mSec at a time until time has
// expired or the command has finished. If msleep can't be used, need
// to poll.
/*
* Check for context and wait for 50 mSec at a time until time has
* expired or the command has finished. If msleep can't be used, need
* to poll.
*/
if (curthread->td_no_sleeping != 0)
sleep_flag = NO_SLEEP;
getmicrotime(&start_time);
if (mtx_owned(&sc->mps_mtx) && sleep_flag == CAN_SLEEP) {
cm->cm_flags |= MPS_CM_FLAGS_WAKEUP;
error = msleep(cm, &sc->mps_mtx, 0, "mpswait", timeout*hz);
} else {
while ((cm->cm_flags & MPS_CM_FLAGS_COMPLETE) == 0) {
@ -2547,54 +2550,6 @@ mps_wait_command(struct mps_softc *sc, struct mps_command *cm, int timeout,
return (error);
}
/*
* This is the routine to enqueue a command synchonously and poll for
* completion. Its use should be rare.
*/
int
mps_request_polled(struct mps_softc *sc, struct mps_command *cm)
{
int error, timeout = 0, rc;
struct timeval cur_time, start_time;
error = 0;
cm->cm_flags |= MPS_CM_FLAGS_POLLED;
cm->cm_complete = NULL;
mps_map_command(sc, cm);
getmicrotime(&start_time);
while ((cm->cm_flags & MPS_CM_FLAGS_COMPLETE) == 0) {
mps_intr_locked(sc);
if (mtx_owned(&sc->mps_mtx))
msleep(&sc->msleep_fake_chan, &sc->mps_mtx, 0,
"mpspoll", hz/20);
else
pause("mpsdiag", hz/20);
/*
* Check for real-time timeout and fail if more than 60 seconds.
*/
getmicrotime(&cur_time);
timeout = cur_time.tv_sec - start_time.tv_sec;
if (timeout > 60) {
mps_dprint(sc, MPS_FAULT, "polling failed\n");
error = ETIMEDOUT;
break;
}
}
if (error) {
mps_dprint(sc, MPS_FAULT, "Calling Reinit from %s\n", __func__);
rc = mps_reinit(sc);
mps_dprint(sc, MPS_FAULT, "Reinit %s\n", (rc == 0) ? "success" :
"failed");
}
return (error);
}
/*
* The MPT driver had a verbose interface for config pages. In this driver,
* reduce it to much simplier terms, similar to the Linux driver.

12
sys/dev/mps/mps_config.c
View File

@ -230,7 +230,7 @@ mps_config_get_man_pg10(struct mps_softc *sc, Mpi2ConfigReply_t *mpi_reply)
* This page must be polled because the IOC isn't ready yet when this
* page is needed.
*/
error = mps_request_polled(sc, cm);
error = mps_wait_command(sc, cm, 60, 0);
reply = (MPI2_CONFIG_REPLY *)cm->cm_reply;
if (error || (reply == NULL)) {
/* FIXME */
@ -286,7 +286,7 @@ mps_config_get_man_pg10(struct mps_softc *sc, Mpi2ConfigReply_t *mpi_reply)
* This page must be polled because the IOC isn't ready yet when this
* page is needed.
*/
error = mps_request_polled(sc, cm);
error = mps_wait_command(sc, cm, 60, 0);
reply = (MPI2_CONFIG_REPLY *)cm->cm_reply;
if (error || (reply == NULL)) {
/* FIXME */
@ -1123,7 +1123,7 @@ mps_config_get_raid_volume_pg0(struct mps_softc *sc, Mpi2ConfigReply_t
* This page must be polled because the IOC isn't ready yet when this
* page is needed.
*/
error = mps_request_polled(sc, cm);
error = mps_wait_command(sc, cm, 60, 0);
reply = (MPI2_CONFIG_REPLY *)cm->cm_reply;
if (error || (reply == NULL)) {
/* FIXME */
@ -1180,7 +1180,7 @@ mps_config_get_raid_volume_pg0(struct mps_softc *sc, Mpi2ConfigReply_t
* This page must be polled because the IOC isn't ready yet when this
* page is needed.
*/
error = mps_request_polled(sc, cm);
error = mps_wait_command(sc, cm, 60, 0);
reply = (MPI2_CONFIG_REPLY *)cm->cm_reply;
if (error || (reply == NULL)) {
/* FIXME */
@ -1409,7 +1409,7 @@ mps_config_get_raid_pd_pg0(struct mps_softc *sc, Mpi2ConfigReply_t *mpi_reply,
* This page must be polled because the IOC isn't ready yet when this
* page is needed.
*/
error = mps_request_polled(sc, cm);
error = mps_wait_command(sc, cm, 60, 0);
reply = (MPI2_CONFIG_REPLY *)cm->cm_reply;
if (error || (reply == NULL)) {
/* FIXME */
@ -1466,7 +1466,7 @@ mps_config_get_raid_pd_pg0(struct mps_softc *sc, Mpi2ConfigReply_t *mpi_reply,
* This page must be polled because the IOC isn't ready yet when this
* page is needed.
*/
error = mps_request_polled(sc, cm);
error = mps_wait_command(sc, cm, 60, 0);
reply = (MPI2_CONFIG_REPLY *)cm->cm_reply;
if (error || (reply == NULL)) {
/* FIXME */

1
sys/dev/mps/mpsvar.h
View File

@ -712,7 +712,6 @@ void mpssas_record_event(struct mps_softc *sc,
int mps_map_command(struct mps_softc *sc, struct mps_command *cm);
int mps_wait_command(struct mps_softc *sc, struct mps_command *cm, int timeout,
int sleep_flag);
int mps_request_polled(struct mps_softc *sc, struct mps_command *cm);
int mps_config_get_bios_pg3(struct mps_softc *sc, Mpi2ConfigReply_t
*mpi_reply, Mpi2BiosPage3_t *config_page);