-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2014-2015 Broadcom Corporation.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Broadcom Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2014-2018 Broadcom
+ * All rights reserved.
*/
#include <inttypes.h>
+#include <rte_cycles.h>
#include <rte_malloc.h>
#include "bnxt.h"
-#include "bnxt_cpr.h"
#include "bnxt_irq.h"
#include "bnxt_ring.h"
#include "hsi_struct_def_dpdk.h"
* Interrupts
*/
-static void bnxt_int_handler(void *param)
+void bnxt_int_handler(void *param)
{
struct rte_eth_dev *eth_dev = (struct rte_eth_dev *)param;
- struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
- struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
+ struct bnxt *bp = eth_dev->data->dev_private;
+ struct bnxt_cp_ring_info *cpr = bp->async_cp_ring;
struct cmpl_base *cmp;
uint32_t raw_cons;
uint32_t cons;
return;
raw_cons = cpr->cp_raw_cons;
+ pthread_mutex_lock(&bp->def_cp_lock);
while (1) {
- if (!cpr || !cpr->cp_ring_struct)
+ if (!cpr || !cpr->cp_ring_struct || !cpr->cp_db.doorbell) {
+ pthread_mutex_unlock(&bp->def_cp_lock);
return;
+ }
cons = RING_CMP(cpr->cp_ring_struct, raw_cons);
cmp = &cpr->cp_desc_ring[cons];
if (!CMP_VALID(cmp, raw_cons, cpr->cp_ring_struct))
break;
- switch (CMP_TYPE(cmp)) {
- case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
- /* Handle any async event */
- bnxt_handle_async_event(bp, cmp);
- break;
- case CMPL_BASE_TYPE_HWRM_FWD_REQ:
- /* Handle HWRM forwarded responses */
- bnxt_handle_fwd_req(bp, cmp);
- break;
- default:
- /* Ignore any other events */
- if (cmp->type & rte_cpu_to_le_16(0x01)) {
- if (!CMP_VALID(cmp, raw_cons,
- cpr->cp_ring_struct))
- goto no_more;
- }
- RTE_LOG(INFO, PMD,
- "Ignoring %02x completion\n", CMP_TYPE(cmp));
- break;
- }
+ bnxt_event_hwrm_resp_handler(bp, cmp);
raw_cons = NEXT_RAW_CMP(raw_cons);
+ }
- };
-no_more:
cpr->cp_raw_cons = raw_cons;
- B_CP_DB_REARM(cpr, cpr->cp_raw_cons);
+ if (BNXT_HAS_NQ(bp))
+ bnxt_db_nq_arm(cpr);
+ else
+ B_CP_DB_REARM(cpr, cpr->cp_raw_cons);
+
+ pthread_mutex_unlock(&bp->def_cp_lock);
}
-void bnxt_free_int(struct bnxt *bp)
+int bnxt_free_int(struct bnxt *bp)
{
- struct bnxt_irq *irq;
-
- irq = bp->irq_tbl;
- if (irq) {
- if (irq->requested) {
- rte_intr_disable(&bp->pdev->intr_handle);
- rte_intr_callback_unregister(&bp->pdev->intr_handle,
- irq->handler,
- (void *)bp->eth_dev);
- irq->requested = 0;
+ struct rte_intr_handle *intr_handle = &bp->pdev->intr_handle;
+ struct bnxt_irq *irq = bp->irq_tbl;
+ int rc = 0;
+
+ if (!irq)
+ return 0;
+
+ if (irq->requested) {
+ int count = 0;
+
+ /*
+ * Callback deregistration will fail with rc -EAGAIN if the
+ * callback is currently active. Retry every 50 ms until
+ * successful or 500 ms has elapsed.
+ */
+ do {
+ rc = rte_intr_callback_unregister(intr_handle,
+ irq->handler,
+ bp->eth_dev);
+ if (rc >= 0) {
+ irq->requested = 0;
+ break;
+ }
+ rte_delay_ms(50);
+ } while (count++ < 10);
+
+ if (rc < 0) {
+ PMD_DRV_LOG(ERR, "irq cb unregister failed rc: %d\n",
+ rc);
+ return rc;
}
- rte_free((void *)bp->irq_tbl);
- bp->irq_tbl = NULL;
}
+
+ rte_free(bp->irq_tbl);
+ bp->irq_tbl = NULL;
+
+ return 0;
}
void bnxt_disable_int(struct bnxt *bp)
{
- struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
+ struct bnxt_cp_ring_info *cpr = bp->async_cp_ring;
+
+ if (BNXT_NUM_ASYNC_CPR(bp) == 0)
+ return;
+
+ if (!cpr || !cpr->cp_db.doorbell)
+ return;
/* Only the default completion ring */
- if (cpr != NULL && cpr->cp_doorbell != NULL)
+ if (BNXT_HAS_NQ(bp))
+ bnxt_db_nq(cpr);
+ else
B_CP_DB_DISARM(cpr);
}
void bnxt_enable_int(struct bnxt *bp)
{
- struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
+ struct bnxt_cp_ring_info *cpr = bp->async_cp_ring;
+
+ if (BNXT_NUM_ASYNC_CPR(bp) == 0)
+ return;
+
+ if (!cpr || !cpr->cp_db.doorbell)
+ return;
- B_CP_DB_ARM(cpr);
+ /* Only the default completion ring */
+ if (BNXT_HAS_NQ(bp))
+ bnxt_db_nq_arm(cpr);
+ else
+ B_CP_DB_ARM(cpr);
}
int bnxt_setup_int(struct bnxt *bp)
{
uint16_t total_vecs;
const int len = sizeof(bp->irq_tbl[0].name);
- int i, rc = 0;
+ int i;
/* DPDK host only supports 1 MSI-X vector */
total_vecs = 1;
bp->irq_tbl[i].handler = bnxt_int_handler;
}
} else {
- rc = -ENOMEM;
- goto setup_exit;
+ PMD_DRV_LOG(ERR, "bnxt_irq_tbl setup failed\n");
+ return -ENOMEM;
}
- return 0;
-setup_exit:
- RTE_LOG(ERR, PMD, "bnxt_irq_tbl setup failed\n");
- return rc;
+ return 0;
}
int bnxt_request_int(struct bnxt *bp)
{
+ struct rte_intr_handle *intr_handle = &bp->pdev->intr_handle;
+ struct bnxt_irq *irq = bp->irq_tbl;
int rc = 0;
- struct bnxt_irq *irq = bp->irq_tbl;
+ if (!irq)
+ return 0;
- rte_intr_callback_register(&bp->pdev->intr_handle, irq->handler,
- (void *)bp->eth_dev);
- rte_intr_enable(&bp->pdev->intr_handle);
+ if (!irq->requested) {
+ rc = rte_intr_callback_register(intr_handle,
+ irq->handler,
+ bp->eth_dev);
+ if (!rc)
+ irq->requested = 1;
+ }
- irq->requested = 1;
return rc;
}
git.droids-corp.org / dpdk.git / blobdiff