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iser-target: Updates for login negotiation multi-plexing support
This patch updates iser-target code to support login negotiation multi-plexing. This includes only using isert_conn->conn_login_comp for the first login request PDU, pushing the subsequent processing to iscsi_conn->login_work -> iscsi_target_do_login_rx(), and turning isert_get_login_rx() into a NOP. v3 changes: - Drop unnecessary LOGIN_FLAGS_READ_ACTIVE bit set in isert_rx_login_req() Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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@ -869,7 +869,11 @@ isert_rx_login_req(struct iser_rx_desc *rx_desc, int rx_buflen,
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size, rx_buflen, MAX_KEY_VALUE_PAIRS);
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memcpy(login->req_buf, &rx_desc->data[0], size);
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complete(&isert_conn->conn_login_comp);
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if (login->first_request) {
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complete(&isert_conn->conn_login_comp);
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return;
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}
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schedule_delayed_work(&conn->login_work, 0);
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}
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static void
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@ -2224,6 +2228,14 @@ isert_get_login_rx(struct iscsi_conn *conn, struct iscsi_login *login)
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int ret;
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pr_debug("isert_get_login_rx before conn_login_comp conn: %p\n", conn);
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/*
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* For login requests after the first PDU, isert_rx_login_req() will
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* kick schedule_delayed_work(&conn->login_work) as the packet is
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* received, which turns this callback from iscsi_target_do_login_rx()
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* into a NOP.
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*/
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if (!login->first_request)
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return 0;
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ret = wait_for_completion_interruptible(&isert_conn->conn_login_comp);
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if (ret)
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