diff options
| -rw-r--r-- | Documentation/ABI/stable/sysfs-driver-ib_srp | 2 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/srp/ib_srp.c | 10 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/srp/ib_srp.h | 1 |
3 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-ib_srp b/Documentation/ABI/stable/sysfs-driver-ib_srp index 7049a2b50359..84972a57caae 100644 --- a/Documentation/ABI/stable/sysfs-driver-ib_srp +++ b/Documentation/ABI/stable/sysfs-driver-ib_srp @@ -67,6 +67,8 @@ Description: Interface for making ib_srp connect to a new target. initiator is allowed to queue per SCSI host. The default value for this parameter is 62. The lowest supported value is 2. + * max_it_iu_size, a decimal number specifying the maximum + initiator to target information unit length. What: /sys/class/infiniband_srp/srp-<hca>-<port_number>/ibdev Date: January 2, 2006 diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 6fddd14b6bd9..c46d2799d192 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -3414,6 +3414,7 @@ enum { SRP_OPT_IP_SRC = 1 << 15, SRP_OPT_IP_DEST = 1 << 16, SRP_OPT_TARGET_CAN_QUEUE= 1 << 17, + SRP_OPT_MAX_IT_IU_SIZE = 1 << 18, }; static unsigned int srp_opt_mandatory[] = { @@ -3446,6 +3447,7 @@ static const match_table_t srp_opt_tokens = { { SRP_OPT_QUEUE_SIZE, "queue_size=%d" }, { SRP_OPT_IP_SRC, "src=%s" }, { SRP_OPT_IP_DEST, "dest=%s" }, + { SRP_OPT_MAX_IT_IU_SIZE, "max_it_iu_size=%d" }, { SRP_OPT_ERR, NULL } }; @@ -3739,6 +3741,14 @@ static int srp_parse_options(struct net *net, const char *buf, target->tl_retry_count = token; break; + case SRP_OPT_MAX_IT_IU_SIZE: + if (match_int(args, &token) || token < 0) { + pr_warn("bad maximum initiator to target IU size '%s'\n", p); + goto out; + } + target->max_it_iu_size = token; + break; + default: pr_warn("unknown parameter or missing value '%s' in target creation request\n", p); diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h index f38fbb00d0e8..5359ece561ca 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.h +++ b/drivers/infiniband/ulp/srp/ib_srp.h @@ -210,6 +210,7 @@ struct srp_target_port { u32 ch_count; u32 lkey; enum srp_target_state state; + uint32_t max_it_iu_size; unsigned int cmd_sg_cnt; unsigned int indirect_size; bool allow_ext_sg; |