1104 lines
31 KiB
C
1104 lines
31 KiB
C
/*-
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* Copyright (c) 2017 Broadcom. All rights reserved.
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* The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/**
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* @file
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* FC transport API
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*
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*/
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#include "ocs.h"
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#include "ocs_device.h"
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static void ocs_xport_link_stats_cb(int32_t status, uint32_t num_counters, ocs_hw_link_stat_counts_t *counters, void *arg);
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static void ocs_xport_host_stats_cb(int32_t status, uint32_t num_counters, ocs_hw_host_stat_counts_t *counters, void *arg);
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/**
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* @brief Post node event callback argument.
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*/
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typedef struct {
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ocs_sem_t sem;
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ocs_node_t *node;
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ocs_sm_event_t evt;
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void *context;
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} ocs_xport_post_node_event_t;
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/**
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* @brief Allocate a transport object.
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*
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* @par Description
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* A transport object is allocated, and associated with a device instance.
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*
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* @param ocs Pointer to device instance.
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*
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* @return Returns the pointer to the allocated transport object, or NULL if failed.
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*/
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ocs_xport_t *
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ocs_xport_alloc(ocs_t *ocs)
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{
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ocs_xport_t *xport;
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ocs_assert(ocs, NULL);
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xport = ocs_malloc(ocs, sizeof(*xport), OCS_M_ZERO);
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if (xport != NULL) {
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xport->ocs = ocs;
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}
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return xport;
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}
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/**
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* @brief Create the RQ threads and the circular buffers used to pass sequences.
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*
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* @par Description
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* Creates the circular buffers and the servicing threads for RQ processing.
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*
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* @param xport Pointer to transport object
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*
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* @return Returns 0 on success, or a non-zero value on failure.
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*/
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static void
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ocs_xport_rq_threads_teardown(ocs_xport_t *xport)
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{
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ocs_t *ocs = xport->ocs;
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uint32_t i;
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if (xport->num_rq_threads == 0 ||
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xport->rq_thread_info == NULL) {
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return;
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}
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/* Abort any threads */
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for (i = 0; i < xport->num_rq_threads; i++) {
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if (xport->rq_thread_info[i].thread_started) {
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ocs_thread_terminate(&xport->rq_thread_info[i].thread);
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/* wait for the thread to exit */
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ocs_log_debug(ocs, "wait for thread %d to exit\n", i);
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while (xport->rq_thread_info[i].thread_started) {
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ocs_udelay(10000);
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}
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ocs_log_debug(ocs, "thread %d to exited\n", i);
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}
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if (xport->rq_thread_info[i].seq_cbuf != NULL) {
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ocs_cbuf_free(xport->rq_thread_info[i].seq_cbuf);
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xport->rq_thread_info[i].seq_cbuf = NULL;
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}
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}
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}
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/**
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* @brief Create the RQ threads and the circular buffers used to pass sequences.
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*
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* @par Description
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* Creates the circular buffers and the servicing threads for RQ processing.
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*
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* @param xport Pointer to transport object.
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* @param num_rq_threads Number of RQ processing threads that the
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* driver creates.
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*
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* @return Returns 0 on success, or a non-zero value on failure.
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*/
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static int32_t
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ocs_xport_rq_threads_create(ocs_xport_t *xport, uint32_t num_rq_threads)
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{
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ocs_t *ocs = xport->ocs;
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int32_t rc = 0;
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uint32_t i;
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xport->num_rq_threads = num_rq_threads;
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ocs_log_debug(ocs, "number of RQ threads %d\n", num_rq_threads);
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if (num_rq_threads == 0) {
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return 0;
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}
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/* Allocate the space for the thread objects */
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xport->rq_thread_info = ocs_malloc(ocs, sizeof(ocs_xport_rq_thread_info_t) * num_rq_threads, OCS_M_ZERO);
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if (xport->rq_thread_info == NULL) {
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ocs_log_err(ocs, "memory allocation failure\n");
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return -1;
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}
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/* Create the circular buffers and threads. */
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for (i = 0; i < num_rq_threads; i++) {
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xport->rq_thread_info[i].ocs = ocs;
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xport->rq_thread_info[i].seq_cbuf = ocs_cbuf_alloc(ocs, OCS_HW_RQ_NUM_HDR);
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if (xport->rq_thread_info[i].seq_cbuf == NULL) {
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goto ocs_xport_rq_threads_create_error;
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}
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ocs_snprintf(xport->rq_thread_info[i].thread_name,
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sizeof(xport->rq_thread_info[i].thread_name),
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"ocs_unsol_rq:%d:%d", ocs->instance_index, i);
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rc = ocs_thread_create(ocs, &xport->rq_thread_info[i].thread, ocs_unsol_rq_thread,
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xport->rq_thread_info[i].thread_name,
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&xport->rq_thread_info[i], OCS_THREAD_RUN);
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if (rc) {
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ocs_log_err(ocs, "ocs_thread_create failed: %d\n", rc);
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goto ocs_xport_rq_threads_create_error;
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}
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xport->rq_thread_info[i].thread_started = TRUE;
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}
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return 0;
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ocs_xport_rq_threads_create_error:
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ocs_xport_rq_threads_teardown(xport);
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return -1;
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}
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/**
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* @brief Do as much allocation as possible, but do not initialization the device.
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*
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* @par Description
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* Performs the functions required to get a device ready to run.
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*
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* @param xport Pointer to transport object.
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*
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* @return Returns 0 on success, or a non-zero value on failure.
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*/
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int32_t
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ocs_xport_attach(ocs_xport_t *xport)
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{
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ocs_t *ocs = xport->ocs;
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int32_t rc;
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uint32_t max_sgl;
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uint32_t n_sgl;
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uint32_t i;
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uint32_t value;
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uint32_t max_remote_nodes;
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/* booleans used for cleanup if initialization fails */
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uint8_t io_pool_created = FALSE;
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uint8_t node_pool_created = FALSE;
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uint8_t rq_threads_created = FALSE;
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ocs_list_init(&ocs->domain_list, ocs_domain_t, link);
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for (i = 0; i < SLI4_MAX_FCFI; i++) {
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xport->fcfi[i].hold_frames = 1;
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ocs_lock_init(ocs, &xport->fcfi[i].pend_frames_lock, "xport pend_frames[%d]", i);
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ocs_list_init(&xport->fcfi[i].pend_frames, ocs_hw_sequence_t, link);
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}
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rc = ocs_hw_set_ptr(&ocs->hw, OCS_HW_WAR_VERSION, ocs->hw_war_version);
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if (rc) {
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ocs_log_test(ocs, "can't set OCS_HW_WAR_VERSION\n");
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return -1;
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}
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rc = ocs_hw_setup(&ocs->hw, ocs, SLI4_PORT_TYPE_FC);
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if (rc) {
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ocs_log_err(ocs, "%s: Can't setup hardware\n", ocs->desc);
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return -1;
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} else if (ocs->ctrlmask & OCS_CTRLMASK_CRASH_RESET) {
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ocs_log_debug(ocs, "stopping after ocs_hw_setup\n");
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return -1;
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}
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ocs_hw_set(&ocs->hw, OCS_HW_BOUNCE, ocs->hw_bounce);
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ocs_log_debug(ocs, "HW bounce: %d\n", ocs->hw_bounce);
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ocs_hw_set(&ocs->hw, OCS_HW_RQ_SELECTION_POLICY, ocs->rq_selection_policy);
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ocs_hw_set(&ocs->hw, OCS_HW_RR_QUANTA, ocs->rr_quanta);
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ocs_hw_get(&ocs->hw, OCS_HW_RQ_SELECTION_POLICY, &value);
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ocs_log_debug(ocs, "RQ Selection Policy: %d\n", value);
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ocs_hw_set_ptr(&ocs->hw, OCS_HW_FILTER_DEF, (void*) ocs->filter_def);
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ocs_hw_get(&ocs->hw, OCS_HW_MAX_SGL, &max_sgl);
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max_sgl -= SLI4_SGE_MAX_RESERVED;
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n_sgl = MIN(OCS_FC_MAX_SGL, max_sgl);
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/* EVT: For chained SGL testing */
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if (ocs->ctrlmask & OCS_CTRLMASK_TEST_CHAINED_SGLS) {
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n_sgl = 4;
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}
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/* Note: number of SGLs must be set for ocs_node_create_pool */
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if (ocs_hw_set(&ocs->hw, OCS_HW_N_SGL, n_sgl) != OCS_HW_RTN_SUCCESS) {
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ocs_log_err(ocs, "%s: Can't set number of SGLs\n", ocs->desc);
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return -1;
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} else {
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ocs_log_debug(ocs, "%s: Configured for %d SGLs\n", ocs->desc, n_sgl);
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}
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ocs_hw_get(&ocs->hw, OCS_HW_MAX_NODES, &max_remote_nodes);
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if (!ocs->max_remote_nodes)
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ocs->max_remote_nodes = max_remote_nodes;
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rc = ocs_node_create_pool(ocs, ocs->max_remote_nodes);
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if (rc) {
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ocs_log_err(ocs, "Can't allocate node pool\n");
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goto ocs_xport_attach_cleanup;
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} else {
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node_pool_created = TRUE;
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}
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/* EVT: if testing chained SGLs allocate OCS_FC_MAX_SGL SGE's in the IO */
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xport->io_pool = ocs_io_pool_create(ocs, ocs->num_scsi_ios,
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(ocs->ctrlmask & OCS_CTRLMASK_TEST_CHAINED_SGLS) ? OCS_FC_MAX_SGL : n_sgl);
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if (xport->io_pool == NULL) {
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ocs_log_err(ocs, "Can't allocate IO pool\n");
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goto ocs_xport_attach_cleanup;
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} else {
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io_pool_created = TRUE;
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}
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/*
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* setup the RQ processing threads
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*/
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if (ocs_xport_rq_threads_create(xport, ocs->rq_threads) != 0) {
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ocs_log_err(ocs, "failure creating RQ threads\n");
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goto ocs_xport_attach_cleanup;
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}
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rq_threads_created = TRUE;
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return 0;
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ocs_xport_attach_cleanup:
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if (io_pool_created) {
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ocs_io_pool_free(xport->io_pool);
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}
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if (node_pool_created) {
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ocs_node_free_pool(ocs);
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}
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return -1;
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}
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/**
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* @brief Determines how to setup auto Xfer ready.
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*
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* @par Description
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* @param xport Pointer to transport object.
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*
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* @return Returns 0 on success or a non-zero value on failure.
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*/
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static int32_t
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ocs_xport_initialize_auto_xfer_ready(ocs_xport_t *xport)
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{
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ocs_t *ocs = xport->ocs;
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uint32_t auto_xfer_rdy;
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char prop_buf[32];
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uint32_t ramdisc_blocksize = 512;
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uint8_t p_type = 0;
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ocs_hw_get(&ocs->hw, OCS_HW_AUTO_XFER_RDY_CAPABLE, &auto_xfer_rdy);
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if (!auto_xfer_rdy) {
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ocs->auto_xfer_rdy_size = 0;
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ocs_log_test(ocs, "Cannot enable auto xfer rdy for this port\n");
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return 0;
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}
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if (ocs_hw_set(&ocs->hw, OCS_HW_AUTO_XFER_RDY_SIZE, ocs->auto_xfer_rdy_size)) {
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ocs_log_test(ocs, "%s: Can't set auto xfer rdy mode\n", ocs->desc);
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return -1;
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}
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/*
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* Determine if we are doing protection in the backend. We are looking
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* at the modules parameters here. The backend cannot allow a format
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* command to change the protection mode when using this feature,
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* otherwise the firmware will not do the proper thing.
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*/
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if (ocs_get_property("p_type", prop_buf, sizeof(prop_buf)) == 0) {
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p_type = ocs_strtoul(prop_buf, 0, 0);
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}
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if (ocs_get_property("ramdisc_blocksize", prop_buf, sizeof(prop_buf)) == 0) {
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ramdisc_blocksize = ocs_strtoul(prop_buf, 0, 0);
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}
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if (ocs_get_property("external_dif", prop_buf, sizeof(prop_buf)) == 0) {
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if(ocs_strlen(prop_buf)) {
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if (p_type == 0) {
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p_type = 1;
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}
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}
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}
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if (p_type != 0) {
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if (ocs_hw_set(&ocs->hw, OCS_HW_AUTO_XFER_RDY_T10_ENABLE, TRUE)) {
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ocs_log_test(ocs, "%s: Can't set auto xfer rdy mode\n", ocs->desc);
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return -1;
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}
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if (ocs_hw_set(&ocs->hw, OCS_HW_AUTO_XFER_RDY_BLK_SIZE, ramdisc_blocksize)) {
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ocs_log_test(ocs, "%s: Can't set auto xfer rdy blk size\n", ocs->desc);
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return -1;
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}
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if (ocs_hw_set(&ocs->hw, OCS_HW_AUTO_XFER_RDY_P_TYPE, p_type)) {
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ocs_log_test(ocs, "%s: Can't set auto xfer rdy mode\n", ocs->desc);
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return -1;
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}
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if (ocs_hw_set(&ocs->hw, OCS_HW_AUTO_XFER_RDY_REF_TAG_IS_LBA, TRUE)) {
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ocs_log_test(ocs, "%s: Can't set auto xfer rdy ref tag\n", ocs->desc);
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return -1;
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}
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if (ocs_hw_set(&ocs->hw, OCS_HW_AUTO_XFER_RDY_APP_TAG_VALID, FALSE)) {
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ocs_log_test(ocs, "%s: Can't set auto xfer rdy app tag valid\n", ocs->desc);
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return -1;
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}
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}
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ocs_log_debug(ocs, "Auto xfer rdy is enabled, p_type=%d, blksize=%d\n",
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p_type, ramdisc_blocksize);
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return 0;
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}
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/**
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* @brief Initializes the device.
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*
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* @par Description
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* Performs the functions required to make a device functional.
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*
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* @param xport Pointer to transport object.
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*
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* @return Returns 0 on success, or a non-zero value on failure.
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*/
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int32_t
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ocs_xport_initialize(ocs_xport_t *xport)
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{
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ocs_t *ocs = xport->ocs;
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int32_t rc;
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uint32_t i;
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uint32_t max_hw_io;
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uint32_t max_sgl;
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uint32_t hlm;
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uint32_t rq_limit;
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uint32_t dif_capable;
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uint8_t dif_separate = 0;
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char prop_buf[32];
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/* booleans used for cleanup if initialization fails */
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uint8_t ini_device_set = FALSE;
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uint8_t tgt_device_set = FALSE;
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uint8_t hw_initialized = FALSE;
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ocs_hw_get(&ocs->hw, OCS_HW_MAX_IO, &max_hw_io);
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if (ocs_hw_set(&ocs->hw, OCS_HW_N_IO, max_hw_io) != OCS_HW_RTN_SUCCESS) {
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ocs_log_err(ocs, "%s: Can't set number of IOs\n", ocs->desc);
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return -1;
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}
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ocs_hw_get(&ocs->hw, OCS_HW_MAX_SGL, &max_sgl);
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max_sgl -= SLI4_SGE_MAX_RESERVED;
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if (ocs->enable_hlm) {
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ocs_hw_get(&ocs->hw, OCS_HW_HIGH_LOGIN_MODE, &hlm);
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if (!hlm) {
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ocs->enable_hlm = FALSE;
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ocs_log_err(ocs, "Cannot enable high login mode for this port\n");
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} else {
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ocs_log_debug(ocs, "High login mode is enabled\n");
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if (ocs_hw_set(&ocs->hw, OCS_HW_HIGH_LOGIN_MODE, TRUE)) {
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ocs_log_err(ocs, "%s: Can't set high login mode\n", ocs->desc);
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return -1;
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}
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}
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}
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/* validate the auto xfer_rdy size */
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if (ocs->auto_xfer_rdy_size > 0 &&
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(ocs->auto_xfer_rdy_size < 2048 ||
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ocs->auto_xfer_rdy_size > 65536)) {
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ocs_log_err(ocs, "Auto XFER_RDY size is out of range (2K-64K)\n");
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return -1;
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}
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ocs_hw_get(&ocs->hw, OCS_HW_MAX_IO, &max_hw_io);
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if (ocs->auto_xfer_rdy_size > 0) {
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if (ocs_xport_initialize_auto_xfer_ready(xport)) {
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ocs_log_err(ocs, "%s: Failed auto xfer ready setup\n", ocs->desc);
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return -1;
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}
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if (ocs->esoc){
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ocs_hw_set(&ocs->hw, OCS_ESOC, TRUE);
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}
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}
|
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if (ocs->explicit_buffer_list) {
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/* Are pre-registered SGL's required? */
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ocs_hw_get(&ocs->hw, OCS_HW_PREREGISTER_SGL, &i);
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if (i == TRUE) {
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ocs_log_err(ocs, "Explicit Buffer List not supported on this device, not enabled\n");
|
|
} else {
|
|
ocs_hw_set(&ocs->hw, OCS_HW_PREREGISTER_SGL, FALSE);
|
|
}
|
|
}
|
|
|
|
if (ocs_hw_set(&ocs->hw, OCS_HW_TOPOLOGY, ocs->topology) != OCS_HW_RTN_SUCCESS) {
|
|
ocs_log_err(ocs, "%s: Can't set the toplogy\n", ocs->desc);
|
|
return -1;
|
|
}
|
|
ocs_hw_set(&ocs->hw, OCS_HW_RQ_DEFAULT_BUFFER_SIZE, OCS_FC_RQ_SIZE_DEFAULT);
|
|
|
|
if (ocs_hw_set(&ocs->hw, OCS_HW_LINK_SPEED, ocs->speed) != OCS_HW_RTN_SUCCESS) {
|
|
ocs_log_err(ocs, "%s: Can't set the link speed\n", ocs->desc);
|
|
return -1;
|
|
}
|
|
|
|
if (ocs_hw_set(&ocs->hw, OCS_HW_ETH_LICENSE, ocs->ethernet_license) != OCS_HW_RTN_SUCCESS) {
|
|
ocs_log_err(ocs, "%s: Can't set the ethernet license\n", ocs->desc);
|
|
return -1;
|
|
}
|
|
|
|
/* currently only lancer support setting the CRC seed value */
|
|
if (ocs->hw.sli.asic_type == SLI4_ASIC_TYPE_LANCER) {
|
|
if (ocs_hw_set(&ocs->hw, OCS_HW_DIF_SEED, OCS_FC_DIF_SEED) != OCS_HW_RTN_SUCCESS) {
|
|
ocs_log_err(ocs, "%s: Can't set the DIF seed\n", ocs->desc);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/* Set the Dif mode */
|
|
if (0 == ocs_hw_get(&ocs->hw, OCS_HW_DIF_CAPABLE, &dif_capable)) {
|
|
if (dif_capable) {
|
|
if (ocs_get_property("dif_separate", prop_buf, sizeof(prop_buf)) == 0) {
|
|
dif_separate = ocs_strtoul(prop_buf, 0, 0);
|
|
}
|
|
|
|
if ((rc = ocs_hw_set(&ocs->hw, OCS_HW_DIF_MODE,
|
|
(dif_separate == 0 ? OCS_HW_DIF_MODE_INLINE : OCS_HW_DIF_MODE_SEPARATE)))) {
|
|
ocs_log_err(ocs, "Requested DIF MODE not supported\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ocs->target_io_timer_sec) {
|
|
ocs_log_debug(ocs, "setting target io timer=%d\n", ocs->target_io_timer_sec);
|
|
ocs_hw_set(&ocs->hw, OCS_HW_EMULATE_TARGET_WQE_TIMEOUT, TRUE);
|
|
}
|
|
|
|
ocs_hw_callback(&ocs->hw, OCS_HW_CB_DOMAIN, ocs_domain_cb, ocs);
|
|
ocs_hw_callback(&ocs->hw, OCS_HW_CB_REMOTE_NODE, ocs_remote_node_cb, ocs);
|
|
ocs_hw_callback(&ocs->hw, OCS_HW_CB_UNSOLICITED, ocs_unsolicited_cb, ocs);
|
|
ocs_hw_callback(&ocs->hw, OCS_HW_CB_PORT, ocs_port_cb, ocs);
|
|
|
|
ocs->fw_version = (const char*) ocs_hw_get_ptr(&ocs->hw, OCS_HW_FW_REV);
|
|
|
|
/* Initialize vport list */
|
|
ocs_list_init(&xport->vport_list, ocs_vport_spec_t, link);
|
|
ocs_lock_init(ocs, &xport->io_pending_lock, "io_pending_lock[%d]", ocs->instance_index);
|
|
ocs_list_init(&xport->io_pending_list, ocs_io_t, io_pending_link);
|
|
ocs_atomic_init(&xport->io_active_count, 0);
|
|
ocs_atomic_init(&xport->io_pending_count, 0);
|
|
ocs_atomic_init(&xport->io_total_free, 0);
|
|
ocs_atomic_init(&xport->io_total_pending, 0);
|
|
ocs_atomic_init(&xport->io_alloc_failed_count, 0);
|
|
ocs_atomic_init(&xport->io_pending_recursing, 0);
|
|
ocs_lock_init(ocs, &ocs->hw.watchdog_lock, " Watchdog Lock[%d]", ocs_instance(ocs));
|
|
rc = ocs_hw_init(&ocs->hw);
|
|
if (rc) {
|
|
ocs_log_err(ocs, "ocs_hw_init failure\n");
|
|
goto ocs_xport_init_cleanup;
|
|
} else {
|
|
hw_initialized = TRUE;
|
|
}
|
|
|
|
rq_limit = max_hw_io/2;
|
|
if (ocs_hw_set(&ocs->hw, OCS_HW_RQ_PROCESS_LIMIT, rq_limit) != OCS_HW_RTN_SUCCESS) {
|
|
ocs_log_err(ocs, "%s: Can't set the RQ process limit\n", ocs->desc);
|
|
}
|
|
|
|
if (ocs->config_tgt) {
|
|
rc = ocs_scsi_tgt_new_device(ocs);
|
|
if (rc) {
|
|
ocs_log_err(ocs, "failed to initialize target\n");
|
|
goto ocs_xport_init_cleanup;
|
|
} else {
|
|
tgt_device_set = TRUE;
|
|
}
|
|
}
|
|
|
|
if (ocs->enable_ini) {
|
|
rc = ocs_scsi_ini_new_device(ocs);
|
|
if (rc) {
|
|
ocs_log_err(ocs, "failed to initialize initiator\n");
|
|
goto ocs_xport_init_cleanup;
|
|
} else {
|
|
ini_device_set = TRUE;
|
|
}
|
|
|
|
}
|
|
|
|
/* Add vports */
|
|
if (ocs->num_vports != 0) {
|
|
|
|
uint32_t max_vports;
|
|
ocs_hw_get(&ocs->hw, OCS_HW_MAX_VPORTS, &max_vports);
|
|
|
|
if (ocs->num_vports < max_vports) {
|
|
ocs_log_debug(ocs, "Provisioning %d vports\n", ocs->num_vports);
|
|
for (i = 0; i < ocs->num_vports; i++) {
|
|
ocs_vport_create_spec(ocs, 0, 0, UINT32_MAX, ocs->enable_ini, ocs->enable_tgt, NULL, NULL);
|
|
}
|
|
} else {
|
|
ocs_log_err(ocs, "failed to create vports. num_vports range should be (1-%d) \n", max_vports-1);
|
|
goto ocs_xport_init_cleanup;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
ocs_xport_init_cleanup:
|
|
if (ini_device_set) {
|
|
ocs_scsi_ini_del_device(ocs);
|
|
}
|
|
|
|
if (tgt_device_set) {
|
|
ocs_scsi_tgt_del_device(ocs);
|
|
}
|
|
|
|
if (hw_initialized) {
|
|
/* ocs_hw_teardown can only execute after ocs_hw_init */
|
|
ocs_hw_teardown(&ocs->hw);
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* @brief Detaches the transport from the device.
|
|
*
|
|
* @par Description
|
|
* Performs the functions required to shut down a device.
|
|
*
|
|
* @param xport Pointer to transport object.
|
|
*
|
|
* @return Returns 0 on success or a non-zero value on failure.
|
|
*/
|
|
int32_t
|
|
ocs_xport_detach(ocs_xport_t *xport)
|
|
{
|
|
ocs_t *ocs = xport->ocs;
|
|
|
|
/* free resources associated with target-server and initiator-client */
|
|
if (ocs->config_tgt)
|
|
ocs_scsi_tgt_del_device(ocs);
|
|
|
|
if (ocs->enable_ini) {
|
|
ocs_scsi_ini_del_device(ocs);
|
|
|
|
/*Shutdown FC Statistics timer*/
|
|
if (ocs_timer_pending(&ocs->xport->stats_timer))
|
|
ocs_del_timer(&ocs->xport->stats_timer);
|
|
}
|
|
|
|
ocs_hw_teardown(&ocs->hw);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @brief domain list empty callback
|
|
*
|
|
* @par Description
|
|
* Function is invoked when the device domain list goes empty. By convention
|
|
* @c arg points to an ocs_sem_t instance, that is incremented.
|
|
*
|
|
* @param ocs Pointer to device object.
|
|
* @param arg Pointer to semaphore instance.
|
|
*
|
|
* @return None.
|
|
*/
|
|
|
|
static void
|
|
ocs_xport_domain_list_empty_cb(ocs_t *ocs, void *arg)
|
|
{
|
|
ocs_sem_t *sem = arg;
|
|
|
|
ocs_assert(ocs);
|
|
ocs_assert(sem);
|
|
|
|
ocs_sem_v(sem);
|
|
}
|
|
|
|
/**
|
|
* @brief post node event callback
|
|
*
|
|
* @par Description
|
|
* This function is called from the mailbox completion interrupt context to post an
|
|
* event to a node object. By doing this in the interrupt context, it has
|
|
* the benefit of only posting events in the interrupt context, deferring the need to
|
|
* create a per event node lock.
|
|
*
|
|
* @param hw Pointer to HW structure.
|
|
* @param status Completion status for mailbox command.
|
|
* @param mqe Mailbox queue completion entry.
|
|
* @param arg Callback argument.
|
|
*
|
|
* @return Returns 0 on success, a negative error code value on failure.
|
|
*/
|
|
|
|
static int32_t
|
|
ocs_xport_post_node_event_cb(ocs_hw_t *hw, int32_t status, uint8_t *mqe, void *arg)
|
|
{
|
|
ocs_xport_post_node_event_t *payload = arg;
|
|
|
|
if (payload != NULL) {
|
|
ocs_node_post_event(payload->node, payload->evt, payload->context);
|
|
ocs_sem_v(&payload->sem);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @brief Initiate force free.
|
|
*
|
|
* @par Description
|
|
* Perform force free of OCS.
|
|
*
|
|
* @param xport Pointer to transport object.
|
|
*
|
|
* @return None.
|
|
*/
|
|
|
|
static void
|
|
ocs_xport_force_free(ocs_xport_t *xport)
|
|
{
|
|
ocs_t *ocs = xport->ocs;
|
|
ocs_domain_t *domain;
|
|
ocs_domain_t *next;
|
|
|
|
ocs_log_debug(ocs, "reset required, do force shutdown\n");
|
|
ocs_device_lock(ocs);
|
|
ocs_list_foreach_safe(&ocs->domain_list, domain, next) {
|
|
ocs_domain_force_free(domain);
|
|
}
|
|
ocs_device_unlock(ocs);
|
|
}
|
|
|
|
/**
|
|
* @brief Perform transport attach function.
|
|
*
|
|
* @par Description
|
|
* Perform the attach function, which for the FC transport makes a HW call
|
|
* to bring up the link.
|
|
*
|
|
* @param xport pointer to transport object.
|
|
* @param cmd command to execute.
|
|
*
|
|
* ocs_xport_control(ocs_xport_t *xport, OCS_XPORT_PORT_ONLINE)
|
|
* ocs_xport_control(ocs_xport_t *xport, OCS_XPORT_PORT_OFFLINE)
|
|
* ocs_xport_control(ocs_xport_t *xport, OCS_XPORT_PORT_SHUTDOWN)
|
|
* ocs_xport_control(ocs_xport_t *xport, OCS_XPORT_POST_NODE_EVENT, ocs_node_t *node, ocs_sm_event_t, void *context)
|
|
*
|
|
* @return Returns 0 on success, or a negative error code value on failure.
|
|
*/
|
|
|
|
int32_t
|
|
ocs_xport_control(ocs_xport_t *xport, ocs_xport_ctrl_e cmd, ...)
|
|
{
|
|
uint32_t rc = 0;
|
|
ocs_t *ocs = NULL;
|
|
va_list argp;
|
|
|
|
ocs_assert(xport, -1);
|
|
ocs_assert(xport->ocs, -1);
|
|
ocs = xport->ocs;
|
|
|
|
switch (cmd) {
|
|
case OCS_XPORT_PORT_ONLINE: {
|
|
/* Bring the port on-line */
|
|
rc = ocs_hw_port_control(&ocs->hw, OCS_HW_PORT_INIT, 0, NULL, NULL);
|
|
if (rc) {
|
|
ocs_log_err(ocs, "%s: Can't init port\n", ocs->desc);
|
|
} else {
|
|
xport->configured_link_state = cmd;
|
|
}
|
|
break;
|
|
}
|
|
case OCS_XPORT_PORT_OFFLINE: {
|
|
if (ocs_hw_port_control(&ocs->hw, OCS_HW_PORT_SHUTDOWN, 0, NULL, NULL)) {
|
|
ocs_log_err(ocs, "port shutdown failed\n");
|
|
} else {
|
|
xport->configured_link_state = cmd;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case OCS_XPORT_SHUTDOWN: {
|
|
ocs_sem_t sem;
|
|
uint32_t reset_required;
|
|
|
|
/* if a PHYSDEV reset was performed (e.g. hw dump), will affect
|
|
* all PCI functions; orderly shutdown won't work, just force free
|
|
*/
|
|
/* TODO: need to poll this regularly... */
|
|
if (ocs_hw_get(&ocs->hw, OCS_HW_RESET_REQUIRED, &reset_required) != OCS_HW_RTN_SUCCESS) {
|
|
reset_required = 0;
|
|
}
|
|
|
|
if (reset_required) {
|
|
ocs_log_debug(ocs, "reset required, do force shutdown\n");
|
|
ocs_xport_force_free(xport);
|
|
break;
|
|
}
|
|
ocs_sem_init(&sem, 0, "domain_list_sem");
|
|
ocs_register_domain_list_empty_cb(ocs, ocs_xport_domain_list_empty_cb, &sem);
|
|
|
|
if (ocs_hw_port_control(&ocs->hw, OCS_HW_PORT_SHUTDOWN, 0, NULL, NULL)) {
|
|
ocs_log_debug(ocs, "port shutdown failed, do force shutdown\n");
|
|
ocs_xport_force_free(xport);
|
|
} else {
|
|
ocs_log_debug(ocs, "Waiting %d seconds for domain shutdown.\n", (OCS_FC_DOMAIN_SHUTDOWN_TIMEOUT_USEC/1000000));
|
|
|
|
rc = ocs_sem_p(&sem, OCS_FC_DOMAIN_SHUTDOWN_TIMEOUT_USEC);
|
|
if (rc) {
|
|
ocs_log_debug(ocs, "Note: Domain shutdown timed out\n");
|
|
ocs_xport_force_free(xport);
|
|
}
|
|
}
|
|
|
|
ocs_register_domain_list_empty_cb(ocs, NULL, NULL);
|
|
|
|
/* Free up any saved virtual ports */
|
|
ocs_vport_del_all(ocs);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* POST_NODE_EVENT: post an event to a node object
|
|
*
|
|
* This transport function is used to post an event to a node object. It does
|
|
* this by submitting a NOP mailbox command to defer execution to the
|
|
* interrupt context (thereby enforcing the serialized execution of event posting
|
|
* to the node state machine instances)
|
|
*
|
|
* A counting semaphore is used to make the call synchronous (we wait until
|
|
* the callback increments the semaphore before returning (or times out)
|
|
*/
|
|
case OCS_XPORT_POST_NODE_EVENT: {
|
|
ocs_node_t *node;
|
|
ocs_sm_event_t evt;
|
|
void *context;
|
|
ocs_xport_post_node_event_t payload;
|
|
ocs_t *ocs;
|
|
ocs_hw_t *hw;
|
|
|
|
/* Retrieve arguments */
|
|
va_start(argp, cmd);
|
|
node = va_arg(argp, ocs_node_t*);
|
|
evt = va_arg(argp, ocs_sm_event_t);
|
|
context = va_arg(argp, void *);
|
|
va_end(argp);
|
|
|
|
ocs_assert(node, -1);
|
|
ocs_assert(node->ocs, -1);
|
|
|
|
ocs = node->ocs;
|
|
hw = &ocs->hw;
|
|
|
|
/* if node's state machine is disabled, don't bother continuing */
|
|
if (!node->sm.current_state) {
|
|
ocs_log_test(ocs, "node %p state machine disabled\n", node);
|
|
return -1;
|
|
}
|
|
|
|
/* Setup payload */
|
|
ocs_memset(&payload, 0, sizeof(payload));
|
|
ocs_sem_init(&payload.sem, 0, "xport_post_node_Event");
|
|
payload.node = node;
|
|
payload.evt = evt;
|
|
payload.context = context;
|
|
|
|
if (ocs_hw_async_call(hw, ocs_xport_post_node_event_cb, &payload)) {
|
|
ocs_log_test(ocs, "ocs_hw_async_call failed\n");
|
|
rc = -1;
|
|
break;
|
|
}
|
|
|
|
/* Wait for completion */
|
|
if (ocs_sem_p(&payload.sem, OCS_SEM_FOREVER)) {
|
|
ocs_log_test(ocs, "POST_NODE_EVENT: sem wait failed\n");
|
|
rc = -1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
/*
|
|
* Set wwnn for the port. This will be used instead of the default provided by FW.
|
|
*/
|
|
case OCS_XPORT_WWNN_SET: {
|
|
uint64_t wwnn;
|
|
|
|
/* Retrieve arguments */
|
|
va_start(argp, cmd);
|
|
wwnn = va_arg(argp, uint64_t);
|
|
va_end(argp);
|
|
|
|
ocs_log_debug(ocs, " WWNN %016" PRIx64 "\n", wwnn);
|
|
xport->req_wwnn = wwnn;
|
|
|
|
break;
|
|
}
|
|
/*
|
|
* Set wwpn for the port. This will be used instead of the default provided by FW.
|
|
*/
|
|
case OCS_XPORT_WWPN_SET: {
|
|
uint64_t wwpn;
|
|
|
|
/* Retrieve arguments */
|
|
va_start(argp, cmd);
|
|
wwpn = va_arg(argp, uint64_t);
|
|
va_end(argp);
|
|
|
|
ocs_log_debug(ocs, " WWPN %016" PRIx64 "\n", wwpn);
|
|
xport->req_wwpn = wwpn;
|
|
|
|
break;
|
|
}
|
|
|
|
|
|
default:
|
|
break;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* @brief Return status on a link.
|
|
*
|
|
* @par Description
|
|
* Returns status information about a link.
|
|
*
|
|
* @param xport Pointer to transport object.
|
|
* @param cmd Command to execute.
|
|
* @param result Pointer to result value.
|
|
*
|
|
* ocs_xport_status(ocs_xport_t *xport, OCS_XPORT_PORT_STATUS)
|
|
* ocs_xport_status(ocs_xport_t *xport, OCS_XPORT_LINK_SPEED, ocs_xport_stats_t *result)
|
|
* return link speed in MB/sec
|
|
* ocs_xport_status(ocs_xport_t *xport, OCS_XPORT_IS_SUPPORTED_LINK_SPEED, ocs_xport_stats_t *result)
|
|
* [in] *result is speed to check in MB/s
|
|
* returns 1 if supported, 0 if not
|
|
* ocs_xport_status(ocs_xport_t *xport, OCS_XPORT_LINK_STATISTICS, ocs_xport_stats_t *result)
|
|
* return link/host port stats
|
|
* ocs_xport_status(ocs_xport_t *xport, OCS_XPORT_LINK_STAT_RESET, ocs_xport_stats_t *result)
|
|
* resets link/host stats
|
|
*
|
|
*
|
|
* @return Returns 0 on success, or a negative error code value on failure.
|
|
*/
|
|
|
|
int32_t
|
|
ocs_xport_status(ocs_xport_t *xport, ocs_xport_status_e cmd, ocs_xport_stats_t *result)
|
|
{
|
|
uint32_t rc = 0;
|
|
ocs_t *ocs = NULL;
|
|
ocs_xport_stats_t value;
|
|
ocs_hw_rtn_e hw_rc;
|
|
|
|
ocs_assert(xport, -1);
|
|
ocs_assert(xport->ocs, -1);
|
|
|
|
ocs = xport->ocs;
|
|
|
|
switch (cmd) {
|
|
case OCS_XPORT_CONFIG_PORT_STATUS:
|
|
ocs_assert(result, -1);
|
|
if (xport->configured_link_state == 0) {
|
|
/* Initial state is offline. configured_link_state is */
|
|
/* set to online explicitly when port is brought online. */
|
|
xport->configured_link_state = OCS_XPORT_PORT_OFFLINE;
|
|
}
|
|
result->value = xport->configured_link_state;
|
|
break;
|
|
|
|
case OCS_XPORT_PORT_STATUS:
|
|
ocs_assert(result, -1);
|
|
/* Determine port status based on link speed. */
|
|
hw_rc = ocs_hw_get(&(ocs->hw), OCS_HW_LINK_SPEED, &value.value);
|
|
if (hw_rc == OCS_HW_RTN_SUCCESS) {
|
|
if (value.value == 0) {
|
|
result->value = 0;
|
|
} else {
|
|
result->value = 1;
|
|
}
|
|
rc = 0;
|
|
} else {
|
|
rc = -1;
|
|
}
|
|
break;
|
|
|
|
case OCS_XPORT_LINK_SPEED: {
|
|
uint32_t speed;
|
|
|
|
ocs_assert(result, -1);
|
|
result->value = 0;
|
|
|
|
rc = ocs_hw_get(&ocs->hw, OCS_HW_LINK_SPEED, &speed);
|
|
if (rc == 0) {
|
|
result->value = speed;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case OCS_XPORT_IS_SUPPORTED_LINK_SPEED: {
|
|
uint32_t speed;
|
|
uint32_t link_module_type;
|
|
|
|
ocs_assert(result, -1);
|
|
speed = result->value;
|
|
|
|
rc = ocs_hw_get(&ocs->hw, OCS_HW_LINK_MODULE_TYPE, &link_module_type);
|
|
if (rc == 0) {
|
|
switch(speed) {
|
|
case 1000: rc = (link_module_type & OCS_HW_LINK_MODULE_TYPE_1GB) != 0; break;
|
|
case 2000: rc = (link_module_type & OCS_HW_LINK_MODULE_TYPE_2GB) != 0; break;
|
|
case 4000: rc = (link_module_type & OCS_HW_LINK_MODULE_TYPE_4GB) != 0; break;
|
|
case 8000: rc = (link_module_type & OCS_HW_LINK_MODULE_TYPE_8GB) != 0; break;
|
|
case 10000: rc = (link_module_type & OCS_HW_LINK_MODULE_TYPE_10GB) != 0; break;
|
|
case 16000: rc = (link_module_type & OCS_HW_LINK_MODULE_TYPE_16GB) != 0; break;
|
|
case 32000: rc = (link_module_type & OCS_HW_LINK_MODULE_TYPE_32GB) != 0; break;
|
|
default: rc = 0; break;
|
|
}
|
|
} else {
|
|
rc = 0;
|
|
}
|
|
break;
|
|
}
|
|
case OCS_XPORT_LINK_STATISTICS:
|
|
ocs_device_lock(ocs);
|
|
ocs_memcpy((void *)result, &ocs->xport->fc_xport_stats, sizeof(ocs_xport_stats_t));
|
|
ocs_device_unlock(ocs);
|
|
break;
|
|
case OCS_XPORT_LINK_STAT_RESET: {
|
|
/* Create a semaphore to synchronize the stat reset process. */
|
|
ocs_sem_init(&(result->stats.semaphore), 0, "fc_stats_reset");
|
|
|
|
/* First reset the link stats */
|
|
if ((rc = ocs_hw_get_link_stats(&ocs->hw, 0, 1, 1, ocs_xport_link_stats_cb, result)) != 0) {
|
|
ocs_log_err(ocs, "%s: Failed to reset link statistics\n", __func__);
|
|
break;
|
|
}
|
|
|
|
/* Wait for semaphore to be signaled when the command completes */
|
|
/* TODO: Should there be a timeout on this? If so, how long? */
|
|
if (ocs_sem_p(&(result->stats.semaphore), OCS_SEM_FOREVER) != 0) {
|
|
/* Undefined failure */
|
|
ocs_log_test(ocs, "ocs_sem_p failed\n");
|
|
rc = -ENXIO;
|
|
break;
|
|
}
|
|
|
|
/* Next reset the host stats */
|
|
if ((rc = ocs_hw_get_host_stats(&ocs->hw, 1, ocs_xport_host_stats_cb, result)) != 0) {
|
|
ocs_log_err(ocs, "%s: Failed to reset host statistics\n", __func__);
|
|
break;
|
|
}
|
|
|
|
/* Wait for semaphore to be signaled when the command completes */
|
|
if (ocs_sem_p(&(result->stats.semaphore), OCS_SEM_FOREVER) != 0) {
|
|
/* Undefined failure */
|
|
ocs_log_test(ocs, "ocs_sem_p failed\n");
|
|
rc = -ENXIO;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
case OCS_XPORT_IS_QUIESCED:
|
|
ocs_device_lock(ocs);
|
|
result->value = ocs_list_empty(&ocs->domain_list);
|
|
ocs_device_unlock(ocs);
|
|
break;
|
|
default:
|
|
rc = -1;
|
|
break;
|
|
}
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
static void
|
|
ocs_xport_link_stats_cb(int32_t status, uint32_t num_counters, ocs_hw_link_stat_counts_t *counters, void *arg)
|
|
{
|
|
ocs_xport_stats_t *result = arg;
|
|
|
|
result->stats.link_stats.link_failure_error_count = counters[OCS_HW_LINK_STAT_LINK_FAILURE_COUNT].counter;
|
|
result->stats.link_stats.loss_of_sync_error_count = counters[OCS_HW_LINK_STAT_LOSS_OF_SYNC_COUNT].counter;
|
|
result->stats.link_stats.primitive_sequence_error_count = counters[OCS_HW_LINK_STAT_PRIMITIVE_SEQ_COUNT].counter;
|
|
result->stats.link_stats.invalid_transmission_word_error_count = counters[OCS_HW_LINK_STAT_INVALID_XMIT_WORD_COUNT].counter;
|
|
result->stats.link_stats.crc_error_count = counters[OCS_HW_LINK_STAT_CRC_COUNT].counter;
|
|
|
|
ocs_sem_v(&(result->stats.semaphore));
|
|
}
|
|
|
|
|
|
static void
|
|
ocs_xport_host_stats_cb(int32_t status, uint32_t num_counters, ocs_hw_host_stat_counts_t *counters, void *arg)
|
|
{
|
|
ocs_xport_stats_t *result = arg;
|
|
|
|
result->stats.host_stats.transmit_kbyte_count = counters[OCS_HW_HOST_STAT_TX_KBYTE_COUNT].counter;
|
|
result->stats.host_stats.receive_kbyte_count = counters[OCS_HW_HOST_STAT_RX_KBYTE_COUNT].counter;
|
|
result->stats.host_stats.transmit_frame_count = counters[OCS_HW_HOST_STAT_TX_FRAME_COUNT].counter;
|
|
result->stats.host_stats.receive_frame_count = counters[OCS_HW_HOST_STAT_RX_FRAME_COUNT].counter;
|
|
|
|
ocs_sem_v(&(result->stats.semaphore));
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief Free a transport object.
|
|
*
|
|
* @par Description
|
|
* The transport object is freed.
|
|
*
|
|
* @param xport Pointer to transport object.
|
|
*
|
|
* @return None.
|
|
*/
|
|
|
|
void
|
|
ocs_xport_free(ocs_xport_t *xport)
|
|
{
|
|
ocs_t *ocs;
|
|
uint32_t i;
|
|
|
|
if (xport) {
|
|
ocs = xport->ocs;
|
|
ocs_io_pool_free(xport->io_pool);
|
|
ocs_node_free_pool(ocs);
|
|
if(mtx_initialized(&xport->io_pending_lock.lock))
|
|
ocs_lock_free(&xport->io_pending_lock);
|
|
|
|
for (i = 0; i < SLI4_MAX_FCFI; i++) {
|
|
ocs_lock_free(&xport->fcfi[i].pend_frames_lock);
|
|
}
|
|
|
|
ocs_xport_rq_threads_teardown(xport);
|
|
|
|
ocs_free(ocs, xport, sizeof(*xport));
|
|
}
|
|
}
|