--- /dev/null
+/*
+ * BSD LICENSE
+ *
+ * Copyright (C) Cavium networks Ltd. 2016.
+ *
+ * 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 Cavium networks 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 <assert.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "nicvf_plat.h"
+
+#define NICVF_MBOX_PF_RESPONSE_DELAY_US (1000)
+
+static const char *mbox_message[NIC_MBOX_MSG_MAX] = {
+ [NIC_MBOX_MSG_INVALID] = "NIC_MBOX_MSG_INVALID",
+ [NIC_MBOX_MSG_READY] = "NIC_MBOX_MSG_READY",
+ [NIC_MBOX_MSG_ACK] = "NIC_MBOX_MSG_ACK",
+ [NIC_MBOX_MSG_NACK] = "NIC_MBOX_MSG_ACK",
+ [NIC_MBOX_MSG_QS_CFG] = "NIC_MBOX_MSG_QS_CFG",
+ [NIC_MBOX_MSG_RQ_CFG] = "NIC_MBOX_MSG_RQ_CFG",
+ [NIC_MBOX_MSG_SQ_CFG] = "NIC_MBOX_MSG_SQ_CFG",
+ [NIC_MBOX_MSG_RQ_DROP_CFG] = "NIC_MBOX_MSG_RQ_DROP_CFG",
+ [NIC_MBOX_MSG_SET_MAC] = "NIC_MBOX_MSG_SET_MAC",
+ [NIC_MBOX_MSG_SET_MAX_FRS] = "NIC_MBOX_MSG_SET_MAX_FRS",
+ [NIC_MBOX_MSG_CPI_CFG] = "NIC_MBOX_MSG_CPI_CFG",
+ [NIC_MBOX_MSG_RSS_SIZE] = "NIC_MBOX_MSG_RSS_SIZE",
+ [NIC_MBOX_MSG_RSS_CFG] = "NIC_MBOX_MSG_RSS_CFG",
+ [NIC_MBOX_MSG_RSS_CFG_CONT] = "NIC_MBOX_MSG_RSS_CFG_CONT",
+ [NIC_MBOX_MSG_RQ_BP_CFG] = "NIC_MBOX_MSG_RQ_BP_CFG",
+ [NIC_MBOX_MSG_RQ_SW_SYNC] = "NIC_MBOX_MSG_RQ_SW_SYNC",
+ [NIC_MBOX_MSG_BGX_LINK_CHANGE] = "NIC_MBOX_MSG_BGX_LINK_CHANGE",
+ [NIC_MBOX_MSG_ALLOC_SQS] = "NIC_MBOX_MSG_ALLOC_SQS",
+ [NIC_MBOX_MSG_LOOPBACK] = "NIC_MBOX_MSG_LOOPBACK",
+ [NIC_MBOX_MSG_RESET_STAT_COUNTER] = "NIC_MBOX_MSG_RESET_STAT_COUNTER",
+ [NIC_MBOX_MSG_CFG_DONE] = "NIC_MBOX_MSG_CFG_DONE",
+ [NIC_MBOX_MSG_SHUTDOWN] = "NIC_MBOX_MSG_SHUTDOWN",
+};
+
+static inline const char * __attribute__((unused))
+nicvf_mbox_msg_str(int msg)
+{
+ assert(msg >= 0 && msg < NIC_MBOX_MSG_MAX);
+ /* undefined messages */
+ if (mbox_message[msg] == NULL)
+ msg = 0;
+ return mbox_message[msg];
+}
+
+static inline void
+nicvf_mbox_send_msg_to_pf_raw(struct nicvf *nic, struct nic_mbx *mbx)
+{
+ uint64_t *mbx_data;
+ uint64_t mbx_addr;
+ int i;
+
+ mbx_addr = NIC_VF_PF_MAILBOX_0_1;
+ mbx_data = (uint64_t *)mbx;
+ for (i = 0; i < NIC_PF_VF_MAILBOX_SIZE; i++) {
+ nicvf_reg_write(nic, mbx_addr, *mbx_data);
+ mbx_data++;
+ mbx_addr += sizeof(uint64_t);
+ }
+ nicvf_mbox_log("msg sent %s (VF%d)",
+ nicvf_mbox_msg_str(mbx->msg.msg), nic->vf_id);
+}
+
+static inline void
+nicvf_mbox_send_async_msg_to_pf(struct nicvf *nic, struct nic_mbx *mbx)
+{
+ nicvf_mbox_send_msg_to_pf_raw(nic, mbx);
+ /* Messages without ack are racy!*/
+ nicvf_delay_us(NICVF_MBOX_PF_RESPONSE_DELAY_US);
+}
+
+static inline int
+nicvf_mbox_send_msg_to_pf(struct nicvf *nic, struct nic_mbx *mbx)
+{
+ long timeout;
+ long sleep = 10;
+ int i, retry = 5;
+
+ for (i = 0; i < retry; i++) {
+ nic->pf_acked = false;
+ nic->pf_nacked = false;
+ nicvf_smp_wmb();
+
+ nicvf_mbox_send_msg_to_pf_raw(nic, mbx);
+ /* Give some time to get PF response */
+ nicvf_delay_us(NICVF_MBOX_PF_RESPONSE_DELAY_US);
+ timeout = NIC_MBOX_MSG_TIMEOUT;
+ while (timeout > 0) {
+ /* Periodic poll happens from nicvf_interrupt() */
+ nicvf_smp_rmb();
+
+ if (nic->pf_nacked)
+ return -EINVAL;
+ if (nic->pf_acked)
+ return 0;
+
+ nicvf_delay_us(NICVF_MBOX_PF_RESPONSE_DELAY_US);
+ timeout -= sleep;
+ }
+ nicvf_log_error("PF didn't ack to msg 0x%02x %s VF%d (%d/%d)",
+ mbx->msg.msg, nicvf_mbox_msg_str(mbx->msg.msg),
+ nic->vf_id, i, retry);
+ }
+ return -EBUSY;
+}
+
+
+int
+nicvf_handle_mbx_intr(struct nicvf *nic)
+{
+ struct nic_mbx mbx;
+ uint64_t *mbx_data = (uint64_t *)&mbx;
+ uint64_t mbx_addr = NIC_VF_PF_MAILBOX_0_1;
+ size_t i;
+
+ for (i = 0; i < NIC_PF_VF_MAILBOX_SIZE; i++) {
+ *mbx_data = nicvf_reg_read(nic, mbx_addr);
+ mbx_data++;
+ mbx_addr += sizeof(uint64_t);
+ }
+
+ /* Overwrite the message so we won't receive it again */
+ nicvf_reg_write(nic, NIC_VF_PF_MAILBOX_0_1, 0x0);
+
+ nicvf_mbox_log("msg received id=0x%hhx %s (VF%d)", mbx.msg.msg,
+ nicvf_mbox_msg_str(mbx.msg.msg), nic->vf_id);
+
+ switch (mbx.msg.msg) {
+ case NIC_MBOX_MSG_READY:
+ nic->vf_id = mbx.nic_cfg.vf_id & 0x7F;
+ nic->tns_mode = mbx.nic_cfg.tns_mode & 0x7F;
+ nic->node = mbx.nic_cfg.node_id;
+ nic->sqs_mode = mbx.nic_cfg.sqs_mode;
+ nic->loopback_supported = mbx.nic_cfg.loopback_supported;
+ ether_addr_copy((struct ether_addr *)mbx.nic_cfg.mac_addr,
+ (struct ether_addr *)nic->mac_addr);
+ nic->pf_acked = true;
+ break;
+ case NIC_MBOX_MSG_ACK:
+ nic->pf_acked = true;
+ break;
+ case NIC_MBOX_MSG_NACK:
+ nic->pf_nacked = true;
+ break;
+ case NIC_MBOX_MSG_RSS_SIZE:
+ nic->rss_info.rss_size = mbx.rss_size.ind_tbl_size;
+ nic->pf_acked = true;
+ break;
+ case NIC_MBOX_MSG_BGX_LINK_CHANGE:
+ nic->link_up = mbx.link_status.link_up;
+ nic->duplex = mbx.link_status.duplex;
+ nic->speed = mbx.link_status.speed;
+ nic->pf_acked = true;
+ break;
+ default:
+ nicvf_log_error("Invalid message from PF, msg_id=0x%hhx %s",
+ mbx.msg.msg, nicvf_mbox_msg_str(mbx.msg.msg));
+ break;
+ }
+ nicvf_smp_wmb();
+
+ return mbx.msg.msg;
+}
+
+/*
+ * Checks if VF is able to communicate with PF
+ * and also gets the VNIC number this VF is associated to.
+ */
+int
+nicvf_mbox_check_pf_ready(struct nicvf *nic)
+{
+ struct nic_mbx mbx = { .msg = {.msg = NIC_MBOX_MSG_READY} };
+
+ return nicvf_mbox_send_msg_to_pf(nic, &mbx);
+}
+
+int
+nicvf_mbox_set_mac_addr(struct nicvf *nic,
+ const uint8_t mac[NICVF_MAC_ADDR_SIZE])
+{
+ struct nic_mbx mbx = { .msg = {0} };
+ int i;
+
+ mbx.msg.msg = NIC_MBOX_MSG_SET_MAC;
+ mbx.mac.vf_id = nic->vf_id;
+ for (i = 0; i < 6; i++)
+ mbx.mac.mac_addr[i] = mac[i];
+
+ return nicvf_mbox_send_msg_to_pf(nic, &mbx);
+}
+
+int
+nicvf_mbox_config_cpi(struct nicvf *nic, uint32_t qcnt)
+{
+ struct nic_mbx mbx = { .msg = { 0 } };
+
+ mbx.msg.msg = NIC_MBOX_MSG_CPI_CFG;
+ mbx.cpi_cfg.vf_id = nic->vf_id;
+ mbx.cpi_cfg.cpi_alg = nic->cpi_alg;
+ mbx.cpi_cfg.rq_cnt = qcnt;
+
+ return nicvf_mbox_send_msg_to_pf(nic, &mbx);
+}
+
+int
+nicvf_mbox_get_rss_size(struct nicvf *nic)
+{
+ struct nic_mbx mbx = { .msg = { 0 } };
+
+ mbx.msg.msg = NIC_MBOX_MSG_RSS_SIZE;
+ mbx.rss_size.vf_id = nic->vf_id;
+
+ /* Result will be stored in nic->rss_info.rss_size */
+ return nicvf_mbox_send_msg_to_pf(nic, &mbx);
+}
+
+int
+nicvf_mbox_config_rss(struct nicvf *nic)
+{
+ struct nic_mbx mbx = { .msg = { 0 } };
+ struct nicvf_rss_reta_info *rss = &nic->rss_info;
+ size_t tot_len = rss->rss_size;
+ size_t cur_len;
+ size_t cur_idx = 0;
+ size_t i;
+
+ mbx.rss_cfg.vf_id = nic->vf_id;
+ mbx.rss_cfg.hash_bits = rss->hash_bits;
+ mbx.rss_cfg.tbl_len = 0;
+ mbx.rss_cfg.tbl_offset = 0;
+
+ while (cur_idx < tot_len) {
+ cur_len = nicvf_min(tot_len - cur_idx,
+ (size_t)RSS_IND_TBL_LEN_PER_MBX_MSG);
+ mbx.msg.msg = (cur_idx > 0) ?
+ NIC_MBOX_MSG_RSS_CFG_CONT : NIC_MBOX_MSG_RSS_CFG;
+ mbx.rss_cfg.tbl_offset = cur_idx;
+ mbx.rss_cfg.tbl_len = cur_len;
+ for (i = 0; i < cur_len; i++)
+ mbx.rss_cfg.ind_tbl[i] = rss->ind_tbl[cur_idx++];
+
+ if (nicvf_mbox_send_msg_to_pf(nic, &mbx))
+ return NICVF_ERR_RSS_TBL_UPDATE;
+ }
+
+ return 0;
+}
+
+int
+nicvf_mbox_rq_config(struct nicvf *nic, uint16_t qidx,
+ struct pf_rq_cfg *pf_rq_cfg)
+{
+ struct nic_mbx mbx = { .msg = { 0 } };
+
+ mbx.msg.msg = NIC_MBOX_MSG_RQ_CFG;
+ mbx.rq.qs_num = nic->vf_id;
+ mbx.rq.rq_num = qidx;
+ mbx.rq.cfg = pf_rq_cfg->value;
+ return nicvf_mbox_send_msg_to_pf(nic, &mbx);
+}
+
+int
+nicvf_mbox_sq_config(struct nicvf *nic, uint16_t qidx)
+{
+ struct nic_mbx mbx = { .msg = { 0 } };
+
+ mbx.msg.msg = NIC_MBOX_MSG_SQ_CFG;
+ mbx.sq.qs_num = nic->vf_id;
+ mbx.sq.sq_num = qidx;
+ mbx.sq.sqs_mode = nic->sqs_mode;
+ mbx.sq.cfg = (nic->vf_id << 3) | qidx;
+ return nicvf_mbox_send_msg_to_pf(nic, &mbx);
+}
+
+int
+nicvf_mbox_qset_config(struct nicvf *nic, struct pf_qs_cfg *qs_cfg)
+{
+ struct nic_mbx mbx = { .msg = { 0 } };
+
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+ qs_cfg->be = 1;
+#endif
+ /* Send a mailbox msg to PF to config Qset */
+ mbx.msg.msg = NIC_MBOX_MSG_QS_CFG;
+ mbx.qs.num = nic->vf_id;
+ mbx.qs.cfg = qs_cfg->value;
+ return nicvf_mbox_send_msg_to_pf(nic, &mbx);
+}
+
+int
+nicvf_mbox_rq_drop_config(struct nicvf *nic, uint16_t qidx, bool enable)
+{
+ struct nic_mbx mbx = { .msg = { 0 } };
+ struct pf_rq_drop_cfg *drop_cfg;
+
+ /* Enable CQ drop to reserve sufficient CQEs for all tx packets */
+ mbx.msg.msg = NIC_MBOX_MSG_RQ_DROP_CFG;
+ mbx.rq.qs_num = nic->vf_id;
+ mbx.rq.rq_num = qidx;
+ drop_cfg = (struct pf_rq_drop_cfg *)&mbx.rq.cfg;
+ drop_cfg->value = 0;
+ if (enable) {
+ drop_cfg->cq_red = 1;
+ drop_cfg->cq_drop = 2;
+ }
+ return nicvf_mbox_send_msg_to_pf(nic, &mbx);
+}
+
+int
+nicvf_mbox_update_hw_max_frs(struct nicvf *nic, uint16_t mtu)
+{
+ struct nic_mbx mbx = { .msg = { 0 } };
+
+ mbx.msg.msg = NIC_MBOX_MSG_SET_MAX_FRS;
+ mbx.frs.max_frs = mtu;
+ mbx.frs.vf_id = nic->vf_id;
+ return nicvf_mbox_send_msg_to_pf(nic, &mbx);
+}
+
+int
+nicvf_mbox_rq_sync(struct nicvf *nic)
+{
+ struct nic_mbx mbx = { .msg = { 0 } };
+
+ /* Make sure all packets in the pipeline are written back into mem */
+ mbx.msg.msg = NIC_MBOX_MSG_RQ_SW_SYNC;
+ mbx.rq.cfg = 0;
+ return nicvf_mbox_send_msg_to_pf(nic, &mbx);
+}
+
+int
+nicvf_mbox_rq_bp_config(struct nicvf *nic, uint16_t qidx, bool enable)
+{
+ struct nic_mbx mbx = { .msg = { 0 } };
+
+ mbx.msg.msg = NIC_MBOX_MSG_RQ_BP_CFG;
+ mbx.rq.qs_num = nic->vf_id;
+ mbx.rq.rq_num = qidx;
+ mbx.rq.cfg = 0;
+ if (enable)
+ mbx.rq.cfg = (1ULL << 63) | (1ULL << 62) | (nic->vf_id << 0);
+ return nicvf_mbox_send_msg_to_pf(nic, &mbx);
+}
+
+int
+nicvf_mbox_loopback_config(struct nicvf *nic, bool enable)
+{
+ struct nic_mbx mbx = { .msg = { 0 } };
+
+ mbx.lbk.msg = NIC_MBOX_MSG_LOOPBACK;
+ mbx.lbk.vf_id = nic->vf_id;
+ mbx.lbk.enable = enable;
+ return nicvf_mbox_send_msg_to_pf(nic, &mbx);
+}
+
+int
+nicvf_mbox_reset_stat_counters(struct nicvf *nic, uint16_t rx_stat_mask,
+ uint8_t tx_stat_mask, uint16_t rq_stat_mask,
+ uint16_t sq_stat_mask)
+{
+ struct nic_mbx mbx = { .msg = { 0 } };
+
+ mbx.reset_stat.msg = NIC_MBOX_MSG_RESET_STAT_COUNTER;
+ mbx.reset_stat.rx_stat_mask = rx_stat_mask;
+ mbx.reset_stat.tx_stat_mask = tx_stat_mask;
+ mbx.reset_stat.rq_stat_mask = rq_stat_mask;
+ mbx.reset_stat.sq_stat_mask = sq_stat_mask;
+ return nicvf_mbox_send_msg_to_pf(nic, &mbx);
+}
+
+void
+nicvf_mbox_shutdown(struct nicvf *nic)
+{
+ struct nic_mbx mbx = { .msg = { 0 } };
+
+ mbx.msg.msg = NIC_MBOX_MSG_SHUTDOWN;
+ nicvf_mbox_send_msg_to_pf(nic, &mbx);
+}
+
+void
+nicvf_mbox_cfg_done(struct nicvf *nic)
+{
+ struct nic_mbx mbx = { .msg = { 0 } };
+
+ mbx.msg.msg = NIC_MBOX_MSG_CFG_DONE;
+ nicvf_mbox_send_async_msg_to_pf(nic, &mbx);
+}
Code Review / deb_dpdk.git / blobdiff