diff options
Diffstat (limited to 'Documentation/ABI/stable/sysfs-driver-ib_srp')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-driver-ib_srp | 41 |
1 files changed, 35 insertions, 6 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-ib_srp b/Documentation/ABI/stable/sysfs-driver-ib_srp index 5c53d28f775c..bada15a329f7 100644 --- a/Documentation/ABI/stable/sysfs-driver-ib_srp +++ b/Documentation/ABI/stable/sysfs-driver-ib_srp @@ -6,6 +6,7 @@ Description: Interface for making ib_srp connect to a new target. One can request ib_srp to connect to a new target by writing a comma-separated list of login parameters to this sysfs attribute. The supported parameters are: + * id_ext, a 16-digit hexadecimal number specifying the eight byte identifier extension in the 16-byte SRP target port identifier. The target port identifier is sent by ib_srp @@ -55,12 +56,20 @@ Description: Interface for making ib_srp connect to a new target. only safe with partial memory descriptor list support enabled (allow_ext_sg=1). * comp_vector, a number in the range 0..n-1 specifying the - MSI-X completion vector. Some HCA's allocate multiple (n) - MSI-X vectors per HCA port. If the IRQ affinity masks of - these interrupts have been configured such that each MSI-X - interrupt is handled by a different CPU then the comp_vector - parameter can be used to spread the SRP completion workload - over multiple CPU's. + MSI-X completion vector of the first RDMA channel. Some + HCA's allocate multiple (n) MSI-X vectors per HCA port. If + the IRQ affinity masks of these interrupts have been + configured such that each MSI-X interrupt is handled by a + different CPU then the comp_vector parameter can be used to + spread the SRP completion workload over multiple CPU's. + * tl_retry_count, a number in the range 2..7 specifying the + IB RC retry count. + * queue_size, the maximum number of commands that the + 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 @@ -82,6 +91,13 @@ Description: Whether ib_srp is allowed to include a partial memory descriptor list in an SRP_CMD when communicating with an SRP target. +What: /sys/class/scsi_host/host<n>/ch_count +Date: April 1, 2015 +KernelVersion: 3.19 +Contact: linux-rdma@vger.kernel.org +Description: Number of RDMA channels used for communication with the SRP + target. + What: /sys/class/scsi_host/host<n>/cmd_sg_entries Date: May 19, 2011 KernelVersion: 2.6.39 @@ -89,6 +105,12 @@ Contact: linux-rdma@vger.kernel.org Description: Maximum number of data buffer descriptors that may be sent to the target in a single SRP_CMD request. +What: /sys/class/scsi_host/host<n>/comp_vector +Date: September 2, 2013 +KernelVersion: 3.11 +Contact: linux-rdma@vger.kernel.org +Description: Completion vector used for the first RDMA channel. + What: /sys/class/scsi_host/host<n>/dgid Date: June 17, 2006 KernelVersion: 2.6.17 @@ -153,6 +175,13 @@ Contact: linux-rdma@vger.kernel.org Description: InfiniBand service ID used for establishing communication with the SRP target. +What: /sys/class/scsi_host/host<n>/sgid +Date: February 1, 2014 +KernelVersion: 3.13 +Contact: linux-rdma@vger.kernel.org +Description: InfiniBand GID of the source port used for communication with + the SRP target. + What: /sys/class/scsi_host/host<n>/zero_req_lim Date: September 20, 2006 KernelVersion: 2.6.18 |