svn commit: r268363 - in head: sys/cam/ctl usr.sbin/ctladm
Alexander Motin
mav at FreeBSD.org
Mon Jul 7 11:05:06 UTC 2014
Author: mav
Date: Mon Jul 7 11:05:04 2014
New Revision: 268363
URL: http://svnweb.freebsd.org/changeset/base/268363
Log:
Add support for READ FULL STATUS action of PERSISTENT RESERVE IN command.
Modified:
head/sys/cam/ctl/ctl.c
head/sys/cam/ctl/ctl.h
head/sys/cam/ctl/ctl_cmd_table.c
head/sys/cam/ctl/scsi_ctl.c
head/usr.sbin/ctladm/ctladm.c
Modified: head/sys/cam/ctl/ctl.c
==============================================================================
--- head/sys/cam/ctl/ctl.c Mon Jul 7 09:37:22 2014 (r268362)
+++ head/sys/cam/ctl/ctl.c Mon Jul 7 11:05:04 2014 (r268363)
@@ -1499,6 +1499,61 @@ take:
}
static int
+ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf)
+{
+ int len;
+
+ switch (port->port_type) {
+ case CTL_PORT_FC:
+ {
+ struct scsi_transportid_fcp *id =
+ (struct scsi_transportid_fcp *)buf;
+ if (port->wwpn_iid[iid].wwpn == 0)
+ return (0);
+ memset(id, 0, sizeof(*id));
+ id->format_protocol = SCSI_PROTO_FC;
+ scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name);
+ return (sizeof(*id));
+ }
+ case CTL_PORT_ISCSI:
+ {
+ struct scsi_transportid_iscsi_port *id =
+ (struct scsi_transportid_iscsi_port *)buf;
+ if (port->wwpn_iid[iid].name == NULL)
+ return (0);
+ memset(id, 0, 256);
+ id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT |
+ SCSI_PROTO_ISCSI;
+ len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1;
+ len = roundup2(min(len, 252), 4);
+ scsi_ulto2b(len, id->additional_length);
+ return (sizeof(*id) + len);
+ }
+ case CTL_PORT_SAS:
+ {
+ struct scsi_transportid_sas *id =
+ (struct scsi_transportid_sas *)buf;
+ if (port->wwpn_iid[iid].wwpn == 0)
+ return (0);
+ memset(id, 0, sizeof(*id));
+ id->format_protocol = SCSI_PROTO_SAS;
+ scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address);
+ return (sizeof(*id));
+ }
+ default:
+ {
+ struct scsi_transportid_spi *id =
+ (struct scsi_transportid_spi *)buf;
+ memset(id, 0, sizeof(*id));
+ id->format_protocol = SCSI_PROTO_SPI;
+ scsi_ulto2b(iid, id->scsi_addr);
+ scsi_ulto2b(port->targ_port, id->rel_trgt_port_id);
+ return (sizeof(*id));
+ }
+ }
+}
+
+static int
ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id)
{
return (0);
@@ -7619,6 +7674,11 @@ retry:
case SPRI_RC: /* report capabilities */
total_len = sizeof(struct scsi_per_res_cap);
break;
+ case SPRI_RS: /* read full status */
+ total_len = sizeof(struct scsi_per_res_in_header) +
+ (sizeof(struct scsi_per_res_in_full_desc) + 256) *
+ lun->pr_key_count;
+ break;
default:
panic("Invalid PR type %x", cdb->action);
}
@@ -7775,7 +7835,62 @@ retry:
scsi_ulto2b(type_mask, res_cap->type_mask);
break;
}
- case SPRI_RS: //read full status
+ case SPRI_RS: { // read full status
+ struct scsi_per_res_in_full *res_status;
+ struct scsi_per_res_in_full_desc *res_desc;
+ struct ctl_port *port;
+ int i, len;
+
+ res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr;
+
+ /*
+ * We had to drop the lock to allocate our buffer, which
+ * leaves time for someone to come in with another
+ * persistent reservation. (That is unlikely, though,
+ * since this should be the only persistent reservation
+ * command active right now.)
+ */
+ if (total_len < (sizeof(struct scsi_per_res_in_header) +
+ (sizeof(struct scsi_per_res_in_full_desc) + 256) *
+ lun->pr_key_count)){
+ mtx_unlock(&lun->lun_lock);
+ free(ctsio->kern_data_ptr, M_CTL);
+ printf("%s: reservation length changed, retrying\n",
+ __func__);
+ goto retry;
+ }
+
+ scsi_ulto4b(lun->PRGeneration, res_status->header.generation);
+
+ res_desc = &res_status->desc[0];
+ for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) {
+ if (!lun->per_res[i].registered)
+ continue;
+
+ memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key,
+ sizeof(res_desc->res_key));
+ if ((lun->flags & CTL_LUN_PR_RESERVED) &&
+ (lun->pr_res_idx == i ||
+ lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) {
+ res_desc->flags = SPRI_FULL_R_HOLDER;
+ res_desc->scopetype = lun->res_type;
+ }
+ scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT,
+ res_desc->rel_trgt_port_id);
+ len = 0;
+ port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT];
+ if (port != NULL)
+ len = ctl_create_iid(port,
+ i % CTL_MAX_INIT_PER_PORT,
+ res_desc->transport_id);
+ scsi_ulto4b(len, res_desc->additional_length);
+ res_desc = (struct scsi_per_res_in_full_desc *)
+ &res_desc->transport_id[len];
+ }
+ scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0],
+ res_status->header.length);
+ break;
+ }
default:
/*
* This is a bug, because we just checked for this above,
Modified: head/sys/cam/ctl/ctl.h
==============================================================================
--- head/sys/cam/ctl/ctl.h Mon Jul 7 09:37:22 2014 (r268362)
+++ head/sys/cam/ctl/ctl.h Mon Jul 7 11:05:04 2014 (r268363)
@@ -53,6 +53,7 @@ typedef enum {
CTL_PORT_IOCTL = 0x04,
CTL_PORT_INTERNAL = 0x08,
CTL_PORT_ISCSI = 0x10,
+ CTL_PORT_SAS = 0x20,
CTL_PORT_ALL = 0xff,
CTL_PORT_ISC = 0x100 // FC port for inter-shelf communication
} ctl_port_type;
Modified: head/sys/cam/ctl/ctl_cmd_table.c
==============================================================================
--- head/sys/cam/ctl/ctl_cmd_table.c Mon Jul 7 09:37:22 2014 (r268362)
+++ head/sys/cam/ctl/ctl_cmd_table.c Mon Jul 7 11:05:04 2014 (r268363)
@@ -99,7 +99,15 @@ const struct ctl_cmd_entry ctl_cmd_table
10, { 0x02, 0, 0, 0, 0, 0, 0xff, 0xff, 0x07}},
/* 03 READ FULL STATUS */
-{NULL, CTL_SERIDX_INVLD, CTL_CMD_FLAG_NONE, CTL_LUN_PAT_NONE},
+{ctl_persistent_reserve_in, CTL_SERIDX_INQ, CTL_CMD_FLAG_ALLOW_ON_RESV |
+ CTL_CMD_FLAG_OK_ON_BOTH |
+ CTL_CMD_FLAG_OK_ON_STOPPED |
+ CTL_CMD_FLAG_OK_ON_INOPERABLE |
+ CTL_CMD_FLAG_OK_ON_SECONDARY |
+ CTL_FLAG_DATA_IN |
+ CTL_CMD_FLAG_ALLOW_ON_PR_RESV,
+ CTL_LUN_PAT_NONE,
+ 10, { 0x03, 0, 0, 0, 0, 0, 0xff, 0xff, 0x07}},
/* 04-1f */
};
Modified: head/sys/cam/ctl/scsi_ctl.c
==============================================================================
--- head/sys/cam/ctl/scsi_ctl.c Mon Jul 7 09:37:22 2014 (r268362)
+++ head/sys/cam/ctl/scsi_ctl.c Mon Jul 7 11:05:04 2014 (r268363)
@@ -372,6 +372,8 @@ ctlfeasync(void *callback_arg, uint32_t
*/
if (cpi->transport == XPORT_FC)
port->port_type = CTL_PORT_FC;
+ else if (cpi->transport == XPORT_SAS)
+ port->port_type = CTL_PORT_SAS;
else
port->port_type = CTL_PORT_SCSI;
Modified: head/usr.sbin/ctladm/ctladm.c
==============================================================================
--- head/usr.sbin/ctladm/ctladm.c Mon Jul 7 09:37:22 2014 (r268362)
+++ head/usr.sbin/ctladm/ctladm.c Mon Jul 7 11:05:04 2014 (r268363)
@@ -500,6 +500,9 @@ retry:
case CTL_PORT_ISCSI:
type = "ISCSI";
break;
+ case CTL_PORT_SAS:
+ type = "SAS";
+ break;
default:
type = "UNKNOWN";
break;
@@ -590,6 +593,7 @@ static struct ctladm_opts cctl_fe_table[
{"scsi", CTL_PORT_SCSI, CTLADM_ARG_NONE, NULL},
{"internal", CTL_PORT_INTERNAL, CTLADM_ARG_NONE, NULL},
{"iscsi", CTL_PORT_ISCSI, CTLADM_ARG_NONE, NULL},
+ {"sas", CTL_PORT_SAS, CTLADM_ARG_NONE, NULL},
{"all", CTL_PORT_ALL, CTLADM_ARG_NONE, NULL},
{NULL, 0, 0, NULL}
};
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