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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-06-14 23:07:47 (GMT) |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-06-25 05:35:51 (GMT) |
| commit | 778de368964c5b7e8100cde9f549992d521e9c89 (patch) | |
| tree | 5925e16a0fa2e29925f3ee44a0f00fc11d2afb4d /drivers/infiniband | |
| parent | 08234e3adc7a299c9213bcfa0b5e97c359129670 (diff) | |
| download | linux-fsl-qoriq-778de368964c5b7e8100cde9f549992d521e9c89.tar.xz | |
iscsi/isert-target: Refactor ISCSI_OP_NOOP RX handling
This patch refactors ISCSI_OP_NOOP handling within iscsi-target in
order to handle iscsi_nopout payloads in a transport specific manner.
This includes splitting existing iscsit_handle_nop_out() into
iscsit_setup_nop_out() and iscsit_process_nop_out() calls, and
makes iscsit_handle_nop_out() be only used internally by traditional
iscsi socket calls.
Next update iser-target code to use new callers and add FIXME for
the handling iscsi_nopout payloads. Also fix reject response handling
in iscsit_setup_nop_out() to use proper iscsit_add_reject_from_cmd().
v2: Fix uninitialized iscsit_handle_nop_out() payload_length usage (Fengguang)
v3: Remove left-over dead code in iscsit_setup_nop_out() (DanC)
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/ulp/isert/ib_isert.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c index 41712f0..c48c948 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.c +++ b/drivers/infiniband/ulp/isert/ib_isert.c @@ -1001,6 +1001,25 @@ isert_handle_iscsi_dataout(struct isert_conn *isert_conn, } static int +isert_handle_nop_out(struct isert_conn *isert_conn, struct isert_cmd *isert_cmd, + struct iser_rx_desc *rx_desc, unsigned char *buf) +{ + struct iscsi_cmd *cmd = &isert_cmd->iscsi_cmd; + struct iscsi_conn *conn = isert_conn->conn; + struct iscsi_nopout *hdr = (struct iscsi_nopout *)buf; + int rc; + + rc = iscsit_setup_nop_out(conn, cmd, hdr); + if (rc < 0) + return rc; + /* + * FIXME: Add support for NOPOUT payload using unsolicited RDMA payload + */ + + return iscsit_process_nop_out(conn, cmd, hdr); +} + +static int isert_rx_opcode(struct isert_conn *isert_conn, struct iser_rx_desc *rx_desc, uint32_t read_stag, uint64_t read_va, uint32_t write_stag, uint64_t write_va) @@ -1032,7 +1051,9 @@ isert_rx_opcode(struct isert_conn *isert_conn, struct iser_rx_desc *rx_desc, if (!cmd) break; - ret = iscsit_handle_nop_out(conn, cmd, (unsigned char *)hdr); + isert_cmd = container_of(cmd, struct isert_cmd, iscsi_cmd); + ret = isert_handle_nop_out(isert_conn, isert_cmd, + rx_desc, (unsigned char *)hdr); break; case ISCSI_OP_SCSI_DATA_OUT: ret = isert_handle_iscsi_dataout(isert_conn, rx_desc, |