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Fix assumptions of only one device per SES slot.

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It is typical to have one, but no longer true for multi-actuator HDDs
with separate LUN for each actuator.

MFC after:	4 days
Sponsored by:	iXsystems, Inc.
This commit is contained in:
Alexander Motin 2019-09-11 03:25:30 +00:00
parent 5b7145c6d4
commit 07f7e4c8b0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=352201
2 changed files with 21 additions and 15 deletions
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4
sys/cam/cam_periph.c
View File

@ -402,7 +402,9 @@ cam_periph_list(struct cam_path *path, struct sbuf *sb)
}
xpt_unlock_buses();
sbuf_finish(&local_sb);
sbuf_cpy(sb, sbuf_data(&local_sb));
if (sbuf_len(sb) != 0)
sbuf_cat(sb, ",");
sbuf_cat(sb, sbuf_data(&local_sb));
sbuf_delete(&local_sb);
return (count);
}

32
sys/cam/scsi/scsi_enc_ses.c
View File

@ -883,6 +883,7 @@ ses_path_iter_devid_callback(enc_softc_t *enc, enc_element_t *elem,
struct device_match_result *device_match;
struct device_match_pattern *device_pattern;
ses_path_iter_args_t *args;
struct cam_path *path;
args = (ses_path_iter_args_t *)arg;
match_pattern.type = DEV_MATCH_DEVICE;
@ -908,23 +909,26 @@ ses_path_iter_devid_callback(enc_softc_t *enc, enc_element_t *elem,
cdm.match_buf_len = sizeof(match_result);
cdm.matches = &match_result;
xpt_action((union ccb *)&cdm);
xpt_free_path(cdm.ccb_h.path);
do {
xpt_action((union ccb *)&cdm);
if ((cdm.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP
|| (cdm.status != CAM_DEV_MATCH_LAST
&& cdm.status != CAM_DEV_MATCH_MORE)
|| cdm.num_matches == 0)
return;
if ((cdm.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP ||
(cdm.status != CAM_DEV_MATCH_LAST &&
cdm.status != CAM_DEV_MATCH_MORE) ||
cdm.num_matches == 0)
break;
device_match = &match_result.result.device_result;
if (xpt_create_path(&cdm.ccb_h.path, /*periph*/NULL,
device_match->path_id,
device_match->target_id,
device_match->target_lun) != CAM_REQ_CMP)
return;
device_match = &match_result.result.device_result;
if (xpt_create_path(&path, /*periph*/NULL,
device_match->path_id,
device_match->target_id,
device_match->target_lun) == CAM_REQ_CMP) {
args->callback(enc, elem, cdm.ccb_h.path, args->callback_arg);
args->callback(enc, elem, path, args->callback_arg);
xpt_free_path(path);
}
} while (cdm.status == CAM_DEV_MATCH_MORE);
xpt_free_path(cdm.ccb_h.path);
}