1. 03 Oct, 2012 2 commits
  2. 02 Oct, 2012 2 commits
    • Nicholas Bellinger's avatar
      iscsi-target: Add MaxXmitDataSegmentLength connection recovery check · 1c417f39
      Nicholas Bellinger authored
      
      
      The iSCSI TMR TASK_REASSIGN completion logic in iscsi_tmr_task_reassign()
      does an explict check for MRDSL across task reassignment, so go ahead and
      add an explict MaxXmitDataSegmentLength check here as well to be safe.
      
      Cc: Mike Christie <michaelc@cs.wisc.edu>
      Cc: Andy Grover <agrover@redhat.com>
      Cc: Hannes Reinecke <hare@suse.de>
      Cc: Roland Dreier <roland@purestorage.com>
      Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
      1c417f39
    • Nicholas Bellinger's avatar
      iscsi-target: Add base MaxXmitDataSegmentLength code · e004cb25
      Nicholas Bellinger authored
      
      
      This patch introduces a new per connection MaxXmitDataSegmentLength
      parameter value used to represent the outgoing MaxRecvDataSegmentLength
      that is actually sent over the wire during iSCSI login response back
      to the initiator side.
      
      It also adds a new MaxXmitDataSegmentLength configfs attribute to
      represent this value within the existing TPG parameter group under
      /sys/kernel/config/target/iscsi/$TARGETNAME/$TPGT/param/
      
      Cc: Mike Christie <michaelc@cs.wisc.edu>
      Cc: Andy Grover <agrover@redhat.com>
      Cc: Hannes Reinecke <hare@suse.de>
      Cc: Roland Dreier <roland@purestorage.com>
      Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
      e004cb25
  3. 21 Jul, 2012 1 commit
    • Al Viro's avatar
      iscsi-target: Drop bogus struct file usage for iSCSI/SCTP · bf6932f4
      Al Viro authored
      
      
      From Al Viro:
      
      	BTW, speaking of struct file treatment related to sockets -
              there's this piece of code in iscsi:
              /*
               * The SCTP stack needs struct socket->file.
               */
              if ((np->np_network_transport == ISCSI_SCTP_TCP) ||
                  (np->np_network_transport == ISCSI_SCTP_UDP)) {
                      if (!new_sock->file) {
                              new_sock->file = kzalloc(
                                              sizeof(struct file), GFP_KERNEL);
      
      For one thing, as far as I can see it'not true - sctp does *not* depend on
      socket->file being non-NULL; it does, in one place, check socket->file->f_flags
      for O_NONBLOCK, but there it treats NULL socket->file as "flag not set".
      Which is the case here anyway - the fake struct file created in
      __iscsi_target_login_thread() (and in iscsi_target_setup_login_socket(), with
      the same excuse) do *not* get that flag set.
      
      Moreover, it's a bloody serious violation of a bunch of asserts in VFS;
      all struct file instances should come from filp_cachep, via get_empty_filp()
      (or alloc_file(), which is a wrapper for it).  FWIW, I'm very tempted to
      do this and be done with the entire mess:
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      Cc: Andy Grover <agrover@redhat.com>
      Cc: Hannes Reinecke <hare@suse.de>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
      bf6932f4
  4. 17 Jul, 2012 1 commit
  5. 15 Apr, 2012 5 commits
  6. 10 Mar, 2012 1 commit
  7. 18 Jan, 2012 2 commits
  8. 06 Dec, 2011 2 commits
  9. 24 Oct, 2011 2 commits
  10. 26 Jul, 2011 1 commit
    • Nicholas Bellinger's avatar
      iscsi-target: Add iSCSI fabric support for target v4.1 · e48354ce
      Nicholas Bellinger authored
      The Linux-iSCSI.org target module is a full featured in-kernel
      software implementation of iSCSI target mode (RFC-3720) for the
      current WIP mainline target v4.1 infrastructure code for the v3.1
      kernel.  More information can be found here:
      
      http://linux-iscsi.org/wiki/ISCSI
      
      
      
      This includes support for:
      
         * RFC-3720 defined request / response state machines and support for
           all defined iSCSI operation codes from Section 10.2.1.2 using libiscsi
           include/scsi/iscsi_proto.h PDU definitions
         * Target v4.1 compatible control plane using the generic layout in
           target_core_fabric_configfs.c and fabric dependent attributes
           within /sys/kernel/config/target/iscsi/ subdirectories.
         * Target v4.1 compatible iSCSI statistics based on RFC-4544 (iSCSI MIBS)
         * Support for IPv6 and IPv4 network portals in M:N mapping to TPGs
         * iSCSI Error Recovery Hierarchy support
         * Per iSCSI connection RX/TX thread pair scheduling affinity
         * crc32c + crc32c_intel SSEv4 instruction offload support using libcrypto
         * CHAP Authentication support using libcrypto
         * Conversion to use internal SGl allocation with iscsit_alloc_buffs() ->
           transport_generic_map_mem_to_cmd()
      
      (nab: Fix iscsi_proto.h struct scsi_lun usage from linux-next in commit:
            iscsi: Use struct scsi_lun in iscsi structs instead of u8[8])
      (nab: Fix 32-bit compile warnings)
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarAndy Grover <agrover@redhat.com>
      Acked-by: default avatarRoland Dreier <roland@kernel.org>
      Signed-off-by: default avatarNicholas A. Bellinger <nab@linux-iscsi.org>
      e48354ce