From 778de368964c5b7e8100cde9f549992d521e9c89 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Fri, 14 Jun 2013 16:07:47 -0700 Subject: 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 --- drivers/infiniband/ulp/isert/ib_isert.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) (limited to 'drivers/infiniband/ulp') diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c index 41712f096515..c48c9481025c 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.c +++ b/drivers/infiniband/ulp/isert/ib_isert.c @@ -1000,6 +1000,25 @@ isert_handle_iscsi_dataout(struct isert_conn *isert_conn, return 0; } +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, @@ -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, -- cgit v1.2.2