Imported Upstream version 16.07-rc1
[deb_dpdk.git] / drivers / net / bnxt / bnxt_cpr.c
diff --git a/drivers/net/bnxt/bnxt_cpr.c b/drivers/net/bnxt/bnxt_cpr.c
new file mode 100644 (file)
index 0000000..60c277a
--- /dev/null
@@ -0,0 +1,159 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) Broadcom Limited.
+ *   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.
+ */
+
+#include <rte_malloc.h>
+
+#include "bnxt.h"
+#include "bnxt_cpr.h"
+#include "bnxt_hwrm.h"
+#include "bnxt_ring.h"
+#include "hsi_struct_def_dpdk.h"
+
+/*
+ * Async event handling
+ */
+void bnxt_handle_async_event(struct bnxt *bp __rte_unused,
+                            struct cmpl_base *cmp)
+{
+       struct hwrm_async_event_cmpl *async_cmp =
+                               (struct hwrm_async_event_cmpl *)cmp;
+
+       /* TODO: HWRM async events are not defined yet */
+       /* Needs to handle: link events, error events, etc. */
+       switch (async_cmp->event_id) {
+       case 0:
+               /* Assume LINK_CHANGE == 0 */
+               RTE_LOG(INFO, PMD, "Link change event\n");
+
+               /* Can just prompt the update_op routine to do a qcfg
+                * instead of doing the actual qcfg
+                */
+               break;
+       case 1:
+               break;
+       default:
+               RTE_LOG(ERR, PMD, "handle_async_event id = 0x%x\n",
+                       async_cmp->event_id);
+               break;
+       }
+}
+
+void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmpl)
+{
+       struct hwrm_fwd_req_cmpl *fwd_cmpl = (struct hwrm_fwd_req_cmpl *)cmpl;
+       struct input *fwd_cmd;
+       uint16_t logical_vf_id, error_code;
+
+       /* Qualify the fwd request */
+       if (fwd_cmpl->source_id < bp->pf.first_vf_id) {
+               RTE_LOG(ERR, PMD,
+                       "FWD req's source_id 0x%x > first_vf_id 0x%x\n",
+                       fwd_cmpl->source_id, bp->pf.first_vf_id);
+               error_code = HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED;
+               goto reject;
+       } else if (fwd_cmpl->req_len_type >> HWRM_FWD_REQ_CMPL_REQ_LEN_SFT >
+                  128 - sizeof(struct input)) {
+               RTE_LOG(ERR, PMD,
+                   "FWD req's cmd len 0x%x > 108 bytes allowed\n",
+                   fwd_cmpl->req_len_type >> HWRM_FWD_REQ_CMPL_REQ_LEN_SFT);
+               error_code = HWRM_ERR_CODE_INVALID_PARAMS;
+               goto reject;
+       }
+
+       /* Locate VF's forwarded command */
+       logical_vf_id = fwd_cmpl->source_id - bp->pf.first_vf_id;
+       fwd_cmd = (struct input *)((uint8_t *)bp->pf.vf_req_buf +
+                  (logical_vf_id * 128));
+
+       /* Provision the request */
+       switch (fwd_cmd->req_type) {
+       case HWRM_CFA_L2_FILTER_ALLOC:
+       case HWRM_CFA_L2_FILTER_FREE:
+       case HWRM_CFA_L2_FILTER_CFG:
+       case HWRM_CFA_L2_SET_RX_MASK:
+               break;
+       default:
+               error_code = HWRM_ERR_CODE_INVALID_PARAMS;
+               goto reject;
+       }
+
+       /* Forward */
+       fwd_cmd->target_id = fwd_cmpl->source_id;
+       bnxt_hwrm_exec_fwd_resp(bp, fwd_cmd);
+       return;
+
+reject:
+       /* TODO: Encap the reject error resp into the hwrm_err_iput? */
+       /* Use the error_code for the reject cmd */
+       RTE_LOG(ERR, PMD,
+               "Error 0x%x found in the forward request\n", error_code);
+}
+
+/* For the default completion ring only */
+void bnxt_free_def_cp_ring(struct bnxt *bp)
+{
+       struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
+
+       bnxt_free_ring(cpr->cp_ring_struct);
+       rte_free(cpr->cp_ring_struct);
+       rte_free(cpr);
+}
+
+/* For the default completion ring only */
+int bnxt_init_def_ring_struct(struct bnxt *bp, unsigned int socket_id)
+{
+       struct bnxt_cp_ring_info *cpr;
+       struct bnxt_ring *ring;
+
+       cpr = rte_zmalloc_socket("cpr",
+                                sizeof(struct bnxt_cp_ring_info),
+                                RTE_CACHE_LINE_SIZE, socket_id);
+       if (cpr == NULL)
+               return -ENOMEM;
+       bp->def_cp_ring = cpr;
+
+       ring = rte_zmalloc_socket("bnxt_cp_ring_struct",
+                                 sizeof(struct bnxt_ring),
+                                 RTE_CACHE_LINE_SIZE, socket_id);
+       if (ring == NULL)
+               return -ENOMEM;
+       cpr->cp_ring_struct = ring;
+       ring->bd = (void *)cpr->cp_desc_ring;
+       ring->bd_dma = cpr->cp_desc_mapping;
+       ring->ring_size = rte_align32pow2(DEFAULT_CP_RING_SIZE);
+       ring->ring_mask = ring->ring_size - 1;
+       ring->vmem_size = 0;
+       ring->vmem = NULL;
+
+       return 0;
+}