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Diffstat (limited to 'drivers/infiniband/ulp/srpt/ib_srpt.c')
-rw-r--r--drivers/infiniband/ulp/srpt/ib_srpt.c142
1 files changed, 84 insertions, 58 deletions
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index d21ba9d857c3..7e314c2f2071 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -500,6 +500,7 @@ static int srpt_refresh_port(struct srpt_port *sport)
struct ib_mad_reg_req reg_req;
struct ib_port_modify port_modify;
struct ib_port_attr port_attr;
+ __be16 *guid;
int ret;
memset(&port_modify, 0, sizeof(port_modify));
@@ -522,10 +523,17 @@ static int srpt_refresh_port(struct srpt_port *sport)
if (ret)
goto err_query_port;
+ sport->port_guid_wwn.priv = sport;
+ guid = (__be16 *)&sport->gid.global.interface_id;
snprintf(sport->port_guid, sizeof(sport->port_guid),
- "0x%016llx%016llx",
- be64_to_cpu(sport->gid.global.subnet_prefix),
- be64_to_cpu(sport->gid.global.interface_id));
+ "%04x:%04x:%04x:%04x",
+ be16_to_cpu(guid[0]), be16_to_cpu(guid[1]),
+ be16_to_cpu(guid[2]), be16_to_cpu(guid[3]));
+ sport->port_gid_wwn.priv = sport;
+ snprintf(sport->port_gid, sizeof(sport->port_gid),
+ "0x%016llx%016llx",
+ be64_to_cpu(sport->gid.global.subnet_prefix),
+ be64_to_cpu(sport->gid.global.interface_id));
if (!sport->mad_agent) {
memset(&reg_req, 0, sizeof(reg_req));
@@ -1838,6 +1846,7 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
struct srp_login_rej *rej;
struct ib_cm_rep_param *rep_param;
struct srpt_rdma_ch *ch, *tmp_ch;
+ __be16 *guid;
u32 it_iu_len;
int i, ret = 0;
@@ -1983,26 +1992,30 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
goto destroy_ib;
}
- /*
- * Use the initator port identifier as the session name, when
- * checking against se_node_acl->initiatorname[] this can be
- * with or without preceeding '0x'.
- */
+ guid = (__be16 *)&param->primary_path->sgid.global.interface_id;
+ snprintf(ch->ini_guid, sizeof(ch->ini_guid), "%04x:%04x:%04x:%04x",
+ be16_to_cpu(guid[0]), be16_to_cpu(guid[1]),
+ be16_to_cpu(guid[2]), be16_to_cpu(guid[3]));
snprintf(ch->sess_name, sizeof(ch->sess_name), "0x%016llx%016llx",
be64_to_cpu(*(__be64 *)ch->i_port_id),
be64_to_cpu(*(__be64 *)(ch->i_port_id + 8)));
pr_debug("registering session %s\n", ch->sess_name);
- ch->sess = target_alloc_session(&sport->port_tpg_1, 0, 0,
+ if (sport->port_guid_tpg.se_tpg_wwn)
+ ch->sess = target_alloc_session(&sport->port_guid_tpg, 0, 0,
+ TARGET_PROT_NORMAL,
+ ch->ini_guid, ch, NULL);
+ if (sport->port_gid_tpg.se_tpg_wwn && IS_ERR_OR_NULL(ch->sess))
+ ch->sess = target_alloc_session(&sport->port_gid_tpg, 0, 0,
TARGET_PROT_NORMAL, ch->sess_name, ch,
NULL);
/* Retry without leading "0x" */
- if (IS_ERR(ch->sess))
- ch->sess = target_alloc_session(&sport->port_tpg_1, 0, 0,
+ if (sport->port_gid_tpg.se_tpg_wwn && IS_ERR_OR_NULL(ch->sess))
+ ch->sess = target_alloc_session(&sport->port_gid_tpg, 0, 0,
TARGET_PROT_NORMAL,
ch->sess_name + 2, ch, NULL);
- if (IS_ERR(ch->sess)) {
+ if (IS_ERR_OR_NULL(ch->sess)) {
pr_info("Rejected login because no ACL has been configured yet for initiator %s.\n",
ch->sess_name);
rej->reason = cpu_to_be32((PTR_ERR(ch->sess) == -ENOMEM) ?
@@ -2420,7 +2433,7 @@ static int srpt_release_sdev(struct srpt_device *sdev)
return 0;
}
-static struct srpt_port *__srpt_lookup_port(const char *name)
+static struct se_wwn *__srpt_lookup_wwn(const char *name)
{
struct ib_device *dev;
struct srpt_device *sdev;
@@ -2435,23 +2448,25 @@ static struct srpt_port *__srpt_lookup_port(const char *name)
for (i = 0; i < dev->phys_port_cnt; i++) {
sport = &sdev->port[i];
- if (!strcmp(sport->port_guid, name))
- return sport;
+ if (strcmp(sport->port_guid, name) == 0)
+ return &sport->port_guid_wwn;
+ if (strcmp(sport->port_gid, name) == 0)
+ return &sport->port_gid_wwn;
}
}
return NULL;
}
-static struct srpt_port *srpt_lookup_port(const char *name)
+static struct se_wwn *srpt_lookup_wwn(const char *name)
{
- struct srpt_port *sport;
+ struct se_wwn *wwn;
spin_lock(&srpt_dev_lock);
- sport = __srpt_lookup_port(name);
+ wwn = __srpt_lookup_wwn(name);
spin_unlock(&srpt_dev_lock);
- return sport;
+ return wwn;
}
/**
@@ -2464,8 +2479,7 @@ static void srpt_add_one(struct ib_device *device)
struct ib_srq_init_attr srq_attr;
int i;
- pr_debug("device = %p, device->dma_ops = %p\n", device,
- device->dma_ops);
+ pr_debug("device = %p\n", device);
sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
if (!sdev)
@@ -2643,11 +2657,19 @@ static char *srpt_get_fabric_name(void)
return "srpt";
}
+static struct srpt_port *srpt_tpg_to_sport(struct se_portal_group *tpg)
+{
+ return tpg->se_tpg_wwn->priv;
+}
+
static char *srpt_get_fabric_wwn(struct se_portal_group *tpg)
{
- struct srpt_port *sport = container_of(tpg, struct srpt_port, port_tpg_1);
+ struct srpt_port *sport = srpt_tpg_to_sport(tpg);
- return sport->port_guid;
+ WARN_ON_ONCE(tpg != &sport->port_guid_tpg &&
+ tpg != &sport->port_gid_tpg);
+ return tpg == &sport->port_guid_tpg ? sport->port_guid :
+ sport->port_gid;
}
static u16 srpt_get_tag(struct se_portal_group *tpg)
@@ -2737,6 +2759,19 @@ static int srpt_get_tcm_cmd_state(struct se_cmd *se_cmd)
return srpt_get_cmd_state(ioctx);
}
+static int srpt_parse_guid(u64 *guid, const char *name)
+{
+ u16 w[4];
+ int ret = -EINVAL;
+
+ if (sscanf(name, "%hx:%hx:%hx:%hx", &w[0], &w[1], &w[2], &w[3]) != 4)
+ goto out;
+ *guid = get_unaligned_be64(w);
+ ret = 0;
+out:
+ return ret;
+}
+
/**
* srpt_parse_i_port_id() - Parse an initiator port ID.
* @name: ASCII representation of a 128-bit initiator port ID.
@@ -2772,20 +2807,23 @@ out:
*/
static int srpt_init_nodeacl(struct se_node_acl *se_nacl, const char *name)
{
+ u64 guid;
u8 i_port_id[16];
+ int ret;
- if (srpt_parse_i_port_id(i_port_id, name) < 0) {
+ ret = srpt_parse_guid(&guid, name);
+ if (ret < 0)
+ ret = srpt_parse_i_port_id(i_port_id, name);
+ if (ret < 0)
pr_err("invalid initiator port ID %s\n", name);
- return -EINVAL;
- }
- return 0;
+ return ret;
}
static ssize_t srpt_tpg_attrib_srp_max_rdma_size_show(struct config_item *item,
char *page)
{
struct se_portal_group *se_tpg = attrib_to_tpg(item);
- struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1);
+ struct srpt_port *sport = srpt_tpg_to_sport(se_tpg);
return sprintf(page, "%u\n", sport->port_attrib.srp_max_rdma_size);
}
@@ -2794,7 +2832,7 @@ static ssize_t srpt_tpg_attrib_srp_max_rdma_size_store(struct config_item *item,
const char *page, size_t count)
{
struct se_portal_group *se_tpg = attrib_to_tpg(item);
- struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1);
+ struct srpt_port *sport = srpt_tpg_to_sport(se_tpg);
unsigned long val;
int ret;
@@ -2822,7 +2860,7 @@ static ssize_t srpt_tpg_attrib_srp_max_rsp_size_show(struct config_item *item,
char *page)
{
struct se_portal_group *se_tpg = attrib_to_tpg(item);
- struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1);
+ struct srpt_port *sport = srpt_tpg_to_sport(se_tpg);
return sprintf(page, "%u\n", sport->port_attrib.srp_max_rsp_size);
}
@@ -2831,7 +2869,7 @@ static ssize_t srpt_tpg_attrib_srp_max_rsp_size_store(struct config_item *item,
const char *page, size_t count)
{
struct se_portal_group *se_tpg = attrib_to_tpg(item);
- struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1);
+ struct srpt_port *sport = srpt_tpg_to_sport(se_tpg);
unsigned long val;
int ret;
@@ -2859,7 +2897,7 @@ static ssize_t srpt_tpg_attrib_srp_sq_size_show(struct config_item *item,
char *page)
{
struct se_portal_group *se_tpg = attrib_to_tpg(item);
- struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1);
+ struct srpt_port *sport = srpt_tpg_to_sport(se_tpg);
return sprintf(page, "%u\n", sport->port_attrib.srp_sq_size);
}
@@ -2868,7 +2906,7 @@ static ssize_t srpt_tpg_attrib_srp_sq_size_store(struct config_item *item,
const char *page, size_t count)
{
struct se_portal_group *se_tpg = attrib_to_tpg(item);
- struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1);
+ struct srpt_port *sport = srpt_tpg_to_sport(se_tpg);
unsigned long val;
int ret;
@@ -2906,7 +2944,7 @@ static struct configfs_attribute *srpt_tpg_attrib_attrs[] = {
static ssize_t srpt_tpg_enable_show(struct config_item *item, char *page)
{
struct se_portal_group *se_tpg = to_tpg(item);
- struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1);
+ struct srpt_port *sport = srpt_tpg_to_sport(se_tpg);
return snprintf(page, PAGE_SIZE, "%d\n", (sport->enabled) ? 1: 0);
}
@@ -2915,7 +2953,7 @@ static ssize_t srpt_tpg_enable_store(struct config_item *item,
const char *page, size_t count)
{
struct se_portal_group *se_tpg = to_tpg(item);
- struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1);
+ struct srpt_port *sport = srpt_tpg_to_sport(se_tpg);
struct srpt_device *sdev = sport->sdev;
struct srpt_rdma_ch *ch;
unsigned long tmp;
@@ -2967,15 +3005,19 @@ static struct se_portal_group *srpt_make_tpg(struct se_wwn *wwn,
struct config_group *group,
const char *name)
{
- struct srpt_port *sport = container_of(wwn, struct srpt_port, port_wwn);
+ struct srpt_port *sport = wwn->priv;
+ static struct se_portal_group *tpg;
int res;
- /* Initialize sport->port_wwn and sport->port_tpg_1 */
- res = core_tpg_register(&sport->port_wwn, &sport->port_tpg_1, SCSI_PROTOCOL_SRP);
+ WARN_ON_ONCE(wwn != &sport->port_guid_wwn &&
+ wwn != &sport->port_gid_wwn);
+ tpg = wwn == &sport->port_guid_wwn ? &sport->port_guid_tpg :
+ &sport->port_gid_tpg;
+ res = core_tpg_register(wwn, tpg, SCSI_PROTOCOL_SRP);
if (res)
return ERR_PTR(res);
- return &sport->port_tpg_1;
+ return tpg;
}
/**
@@ -2984,11 +3026,10 @@ static struct se_portal_group *srpt_make_tpg(struct se_wwn *wwn,
*/
static void srpt_drop_tpg(struct se_portal_group *tpg)
{
- struct srpt_port *sport = container_of(tpg,
- struct srpt_port, port_tpg_1);
+ struct srpt_port *sport = srpt_tpg_to_sport(tpg);
sport->enabled = false;
- core_tpg_deregister(&sport->port_tpg_1);
+ core_tpg_deregister(tpg);
}
/**
@@ -2999,19 +3040,7 @@ static struct se_wwn *srpt_make_tport(struct target_fabric_configfs *tf,
struct config_group *group,
const char *name)
{
- struct srpt_port *sport;
- int ret;
-
- sport = srpt_lookup_port(name);
- pr_debug("make_tport(%s)\n", name);
- ret = -EINVAL;
- if (!sport)
- goto err;
-
- return &sport->port_wwn;
-
-err:
- return ERR_PTR(ret);
+ return srpt_lookup_wwn(name) ? : ERR_PTR(-EINVAL);
}
/**
@@ -3020,9 +3049,6 @@ err:
*/
static void srpt_drop_tport(struct se_wwn *wwn)
{
- struct srpt_port *sport = container_of(wwn, struct srpt_port, port_wwn);
-
- pr_debug("drop_tport(%s\n", config_item_name(&sport->port_wwn.wwn_group.cg_item));
}
static ssize_t srpt_wwn_version_show(struct config_item *item, char *buf)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.