net/qede/base: support coalescing for VF
authorRasesh Mody <rasesh.mody@cavium.com>
Wed, 29 Mar 2017 20:36:44 +0000 (13:36 -0700)
committerFerruh Yigit <ferruh.yigit@intel.com>
Tue, 4 Apr 2017 17:02:53 +0000 (19:02 +0200)
Add coalescing support for VFs.

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>
drivers/net/qede/base/ecore_dev.c
drivers/net/qede/base/ecore_dev_api.h
drivers/net/qede/base/ecore_sriov.c
drivers/net/qede/base/ecore_vf.c
drivers/net/qede/base/ecore_vf.h
drivers/net/qede/base/ecore_vfpf_if.h

index 29dd292..7a876bc 100644 (file)
@@ -30,6 +30,7 @@
 #include "nvm_cfg.h"
 #include "ecore_dev_api.h"
 #include "ecore_dcbx.h"
+#include "ecore_l2.h"
 
 /* TODO - there's a bug in DCBx re-configuration flows in MF, as the QM
  * registers involved are not split and thus configuration is a race where
@@ -4198,11 +4199,6 @@ static enum _ecore_status_t ecore_set_coalesce(struct ecore_hwfn *p_hwfn,
 {
        struct coalescing_timeset *p_coal_timeset;
 
-       if (IS_VF(p_hwfn->p_dev)) {
-               DP_NOTICE(p_hwfn, true, "VF coalescing config not supported\n");
-               return ECORE_INVAL;
-       }
-
        if (p_hwfn->p_dev->int_coalescing_mode != ECORE_COAL_MODE_ENABLE) {
                DP_NOTICE(p_hwfn, true,
                          "Coalescing configuration not enabled\n");
@@ -4218,13 +4214,53 @@ static enum _ecore_status_t ecore_set_coalesce(struct ecore_hwfn *p_hwfn,
        return ECORE_SUCCESS;
 }
 
+enum _ecore_status_t ecore_set_queue_coalesce(struct ecore_hwfn *p_hwfn,
+                                             u16 rx_coal, u16 tx_coal,
+                                             void *p_handle)
+{
+       struct ecore_queue_cid *p_cid = (struct ecore_queue_cid *)p_handle;
+       enum _ecore_status_t rc = ECORE_SUCCESS;
+       struct ecore_ptt *p_ptt;
+
+       /* TODO - Configuring a single queue's coalescing but
+        * claiming all queues are abiding same configuration
+        * for PF and VF both.
+        */
+
+       if (IS_VF(p_hwfn->p_dev))
+               return ecore_vf_pf_set_coalesce(p_hwfn, rx_coal,
+                                               tx_coal, p_cid);
+
+       p_ptt = ecore_ptt_acquire(p_hwfn);
+       if (!p_ptt)
+               return ECORE_AGAIN;
+
+       if (rx_coal) {
+               rc = ecore_set_rxq_coalesce(p_hwfn, p_ptt, rx_coal, p_cid);
+               if (rc)
+                       goto out;
+               p_hwfn->p_dev->rx_coalesce_usecs = rx_coal;
+       }
+
+       if (tx_coal) {
+               rc = ecore_set_txq_coalesce(p_hwfn, p_ptt, tx_coal, p_cid);
+               if (rc)
+                       goto out;
+               p_hwfn->p_dev->tx_coalesce_usecs = tx_coal;
+       }
+out:
+       ecore_ptt_release(p_hwfn, p_ptt);
+
+       return rc;
+}
+
 enum _ecore_status_t ecore_set_rxq_coalesce(struct ecore_hwfn *p_hwfn,
                                            struct ecore_ptt *p_ptt,
-                                           u16 coalesce, u16 qid, u16 sb_id)
+                                           u16 coalesce,
+                                           struct ecore_queue_cid *p_cid)
 {
        struct ustorm_eth_queue_zone eth_qzone;
        u8 timeset, timer_res;
-       u16 fw_qid = 0;
        u32 address;
        enum _ecore_status_t rc;
 
@@ -4241,33 +4277,30 @@ enum _ecore_status_t ecore_set_rxq_coalesce(struct ecore_hwfn *p_hwfn,
        }
        timeset = (u8)(coalesce >> timer_res);
 
-       rc = ecore_fw_l2_queue(p_hwfn, qid, &fw_qid);
-       if (rc != ECORE_SUCCESS)
-               return rc;
-
-       rc = ecore_int_set_timer_res(p_hwfn, p_ptt, timer_res, sb_id, false);
+       rc = ecore_int_set_timer_res(p_hwfn, p_ptt, timer_res,
+                                    p_cid->abs.sb_idx, false);
        if (rc != ECORE_SUCCESS)
                goto out;
 
-       address = BAR0_MAP_REG_USDM_RAM + USTORM_ETH_QUEUE_ZONE_OFFSET(fw_qid);
+       address = BAR0_MAP_REG_USDM_RAM +
+                 USTORM_ETH_QUEUE_ZONE_OFFSET(p_cid->abs.queue_id);
 
        rc = ecore_set_coalesce(p_hwfn, p_ptt, address, &eth_qzone,
                                sizeof(struct ustorm_eth_queue_zone), timeset);
        if (rc != ECORE_SUCCESS)
                goto out;
 
-       p_hwfn->p_dev->rx_coalesce_usecs = coalesce;
-out:
+ out:
        return rc;
 }
 
 enum _ecore_status_t ecore_set_txq_coalesce(struct ecore_hwfn *p_hwfn,
                                            struct ecore_ptt *p_ptt,
-                                           u16 coalesce, u16 qid, u16 sb_id)
+                                           u16 coalesce,
+                                           struct ecore_queue_cid *p_cid)
 {
        struct xstorm_eth_queue_zone eth_qzone;
        u8 timeset, timer_res;
-       u16 fw_qid = 0;
        u32 address;
        enum _ecore_status_t rc;
 
@@ -4285,23 +4318,17 @@ enum _ecore_status_t ecore_set_txq_coalesce(struct ecore_hwfn *p_hwfn,
 
        timeset = (u8)(coalesce >> timer_res);
 
-       rc = ecore_fw_l2_queue(p_hwfn, qid, &fw_qid);
-       if (rc != ECORE_SUCCESS)
-               return rc;
-
-       rc = ecore_int_set_timer_res(p_hwfn, p_ptt, timer_res, sb_id, true);
+       rc = ecore_int_set_timer_res(p_hwfn, p_ptt, timer_res,
+                                    p_cid->abs.sb_idx, true);
        if (rc != ECORE_SUCCESS)
                goto out;
 
-       address = BAR0_MAP_REG_XSDM_RAM + XSTORM_ETH_QUEUE_ZONE_OFFSET(fw_qid);
+       address = BAR0_MAP_REG_XSDM_RAM +
+                 XSTORM_ETH_QUEUE_ZONE_OFFSET(p_cid->abs.queue_id);
 
        rc = ecore_set_coalesce(p_hwfn, p_ptt, address, &eth_qzone,
                                sizeof(struct xstorm_eth_queue_zone), timeset);
-       if (rc != ECORE_SUCCESS)
-               goto out;
-
-       p_hwfn->p_dev->tx_coalesce_usecs = coalesce;
-out:
+ out:
        return rc;
 }
 
index 7e90778..ce764d2 100644 (file)
@@ -570,41 +570,24 @@ enum _ecore_status_t ecore_final_cleanup(struct ecore_hwfn        *p_hwfn,
                                         struct ecore_ptt       *p_ptt,
                                         u16                    id,
                                         bool                   is_vf);
-
-/**
- * @brief ecore_set_rxq_coalesce - Configure coalesce parameters for an Rx queue
- *    The fact that we can configure coalescing to up to 511, but on varying
- *    accuracy [the bigger the value the less accurate] up to a mistake of 3usec
- *    for the highest values.
- *
- * @param p_hwfn
- * @param p_ptt
- * @param coalesce - Coalesce value in micro seconds.
- * @param qid - Queue index.
- * @param qid - SB Id
- *
- * @return enum _ecore_status_t
- */
-enum _ecore_status_t ecore_set_rxq_coalesce(struct ecore_hwfn *p_hwfn,
-                                           struct ecore_ptt *p_ptt,
-                                           u16 coalesce, u16 qid, u16 sb_id);
-
 /**
- * @brief ecore_set_txq_coalesce - Configure coalesce parameters for a Tx queue
- *    While the API allows setting coalescing per-qid, all tx queues sharing a
- *    SB should be in same range [i.e., either 0-0x7f, 0x80-0xff or 0x100-0x1ff]
+ * @brief ecore_set_queue_coalesce - Configure coalesce parameters for Rx and
+ *    Tx queue. The fact that we can configure coalescing to up to 511, but on
+ *    varying accuracy [the bigger the value the less accurate] up to a mistake
+ *    of 3usec for the highest values.
+ *    While the API allows setting coalescing per-qid, all queues sharing a SB
+ *    should be in same range [i.e., either 0-0x7f, 0x80-0xff or 0x100-0x1ff]
  *    otherwise configuration would break.
  *
  * @param p_hwfn
- * @param p_ptt
- * @param coalesce - Coalesce value in micro seconds.
- * @param qid - Queue index.
- * @param qid - SB Id
+ * @param rx_coal - Rx Coalesce value in micro seconds.
+ * @param tx_coal - TX Coalesce value in micro seconds.
+ * @param p_handle
  *
  * @return enum _ecore_status_t
- */
-enum _ecore_status_t ecore_set_txq_coalesce(struct ecore_hwfn *p_hwfn,
-                                           struct ecore_ptt *p_ptt,
-                                           u16 coalesce, u16 qid, u16 sb_id);
+ **/
+enum _ecore_status_t
+ecore_set_queue_coalesce(struct ecore_hwfn *p_hwfn, u16 rx_coal,
+                        u16 tx_coal, void *p_handle);
 
 #endif
index 703c1e8..4ffa8d0 100644 (file)
@@ -52,6 +52,7 @@ const char *ecore_channel_tlvs_string[] = {
        "CHANNEL_TLV_VPORT_UPDATE_ACCEPT_ANY_VLAN",
        "CHANNEL_TLV_VPORT_UPDATE_SGE_TPA",
        "CHANNEL_TLV_UPDATE_TUNN_PARAM",
+       "CHANNEL_TLV_COALESCE_UPDATE",
        "CHANNEL_TLV_MAX"
 };
 
@@ -1939,6 +1940,8 @@ static void ecore_iov_vf_mbx_start_vport(struct ecore_hwfn *p_hwfn,
        vf->state = VF_ENABLED;
        start = &mbx->req_virt->start_vport;
 
+       ecore_iov_enable_vf_traffic(p_hwfn, p_ptt, vf);
+
        /* Initialize Status block in CAU */
        for (sb_id = 0; sb_id < vf->num_sbs; sb_id++) {
                if (!start->sb_addr[sb_id]) {
@@ -1953,7 +1956,6 @@ static void ecore_iov_vf_mbx_start_vport(struct ecore_hwfn *p_hwfn,
                                      vf->igu_sbs[sb_id],
                                      vf->abs_vf_id, 1);
        }
-       ecore_iov_enable_vf_traffic(p_hwfn, p_ptt, vf);
 
        vf->mtu = start->mtu;
        vf->shadow_config.inner_vlan_removal = start->inner_vlan_removal;
@@ -3226,6 +3228,65 @@ static void ecore_iov_vf_mbx_release(struct ecore_hwfn *p_hwfn,
                               length, status);
 }
 
+static void ecore_iov_vf_pf_set_coalesce(struct ecore_hwfn *p_hwfn,
+                                        struct ecore_ptt *p_ptt,
+                                        struct ecore_vf_info *vf)
+{
+       struct ecore_iov_vf_mbx *mbx = &vf->vf_mbx;
+       enum _ecore_status_t rc = ECORE_SUCCESS;
+       struct vfpf_update_coalesce *req;
+       u8 status = PFVF_STATUS_FAILURE;
+       struct ecore_queue_cid *p_cid;
+       u16 rx_coal, tx_coal;
+       u16  qid;
+
+       req = &mbx->req_virt->update_coalesce;
+
+       rx_coal = req->rx_coal;
+       tx_coal = req->tx_coal;
+       qid = req->qid;
+       p_cid = vf->vf_queues[qid].p_rx_cid;
+
+       if (!ecore_iov_validate_rxq(p_hwfn, vf, qid)) {
+               DP_ERR(p_hwfn, "VF[%d]: Invalid Rx queue_id = %d\n",
+                      vf->abs_vf_id, qid);
+               goto out;
+       }
+
+       if (!ecore_iov_validate_txq(p_hwfn, vf, qid)) {
+               DP_ERR(p_hwfn, "VF[%d]: Invalid Tx queue_id = %d\n",
+                      vf->abs_vf_id, qid);
+               goto out;
+       }
+
+       DP_VERBOSE(p_hwfn, ECORE_MSG_IOV,
+                  "VF[%d]: Setting coalesce for VF rx_coal = %d, tx_coal = %d at queue = %d\n",
+                  vf->abs_vf_id, rx_coal, tx_coal, qid);
+       if (rx_coal) {
+               rc = ecore_set_rxq_coalesce(p_hwfn, p_ptt, rx_coal, p_cid);
+               if (rc != ECORE_SUCCESS) {
+                       DP_VERBOSE(p_hwfn, ECORE_MSG_IOV,
+                                  "VF[%d]: Unable to set rx queue = %d coalesce\n",
+                                  vf->abs_vf_id, vf->vf_queues[qid].fw_rx_qid);
+                       goto out;
+               }
+       }
+       if (tx_coal) {
+               rc =  ecore_set_txq_coalesce(p_hwfn, p_ptt, tx_coal, p_cid);
+               if (rc != ECORE_SUCCESS) {
+                       DP_VERBOSE(p_hwfn, ECORE_MSG_IOV,
+                                  "VF[%d]: Unable to set tx queue = %d coalesce\n",
+                                  vf->abs_vf_id, vf->vf_queues[qid].fw_tx_qid);
+                       goto out;
+               }
+       }
+
+       status = PFVF_STATUS_SUCCESS;
+out:
+       ecore_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_COALESCE_UPDATE,
+                              sizeof(struct pfvf_def_resp_tlv), status);
+}
+
 static enum _ecore_status_t
 ecore_iov_vf_flr_poll_dorq(struct ecore_hwfn *p_hwfn,
                           struct ecore_vf_info *p_vf, struct ecore_ptt *p_ptt)
@@ -3579,6 +3640,9 @@ void ecore_iov_process_mbx_req(struct ecore_hwfn *p_hwfn,
                case CHANNEL_TLV_UPDATE_TUNN_PARAM:
                        ecore_iov_vf_mbx_update_tunn_param(p_hwfn, p_ptt, p_vf);
                        break;
+               case CHANNEL_TLV_COALESCE_UPDATE:
+                       ecore_iov_vf_pf_set_coalesce(p_hwfn, p_ptt, p_vf);
+                       break;
                }
        } else if (ecore_iov_tlv_supported(mbx->first_tlv.tl.type)) {
                /* If we've received a message from a VF we consider malicious
index a072a81..bf516cc 100644 (file)
@@ -1424,6 +1424,48 @@ exit:
        return rc;
 }
 
+enum _ecore_status_t
+ecore_vf_pf_set_coalesce(struct ecore_hwfn *p_hwfn, u16 rx_coal, u16 tx_coal,
+                        struct ecore_queue_cid     *p_cid)
+{
+       struct ecore_vf_iov *p_iov = p_hwfn->vf_iov_info;
+       struct vfpf_update_coalesce *req;
+       struct pfvf_def_resp_tlv *resp;
+       enum _ecore_status_t rc;
+
+       /* clear mailbox and prep header tlv */
+       req = ecore_vf_pf_prep(p_hwfn, CHANNEL_TLV_COALESCE_UPDATE,
+                              sizeof(*req));
+
+       req->rx_coal = rx_coal;
+       req->tx_coal = tx_coal;
+       req->qid = p_cid->rel.queue_id;
+
+       DP_VERBOSE(p_hwfn, ECORE_MSG_IOV,
+                  "Setting coalesce rx_coal = %d, tx_coal = %d at queue = %d\n",
+                  rx_coal, tx_coal, req->qid);
+
+       /* add list termination tlv */
+       ecore_add_tlv(p_hwfn, &p_iov->offset, CHANNEL_TLV_LIST_END,
+                     sizeof(struct channel_list_end_tlv));
+
+       resp = &p_iov->pf2vf_reply->default_resp;
+       rc = ecore_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
+
+       if (rc != ECORE_SUCCESS)
+               goto exit;
+
+       if (resp->hdr.status != PFVF_STATUS_SUCCESS)
+               goto exit;
+
+       p_hwfn->p_dev->rx_coalesce_usecs = rx_coal;
+       p_hwfn->p_dev->tx_coalesce_usecs = tx_coal;
+
+exit:
+       ecore_vf_pf_req_end(p_hwfn, rc);
+       return rc;
+}
+
 u16 ecore_vf_get_igu_sb_id(struct ecore_hwfn *p_hwfn,
                           u16               sb_id)
 {
index 0d67054..228bbf0 100644 (file)
@@ -49,6 +49,20 @@ struct ecore_vf_iov {
  */
 enum _ecore_status_t ecore_vf_hw_prepare(struct ecore_hwfn *p_hwfn);
 
+/**
+ * @brief VF - Set Rx/Tx coalesce per VF's relative queue.
+ *     Coalesce value '0' will omit the configuration.
+ *
+ *     @param p_hwfn
+ *     @param rx_coal - coalesce value in micro second for rx queue
+ *     @param tx_coal - coalesce value in micro second for tx queue
+ *     @param qid
+ *
+ **/
+enum _ecore_status_t ecore_vf_pf_set_coalesce(struct ecore_hwfn *p_hwfn,
+                                             u16 rx_coal, u16 tx_coal,
+                                             struct ecore_queue_cid *p_cid);
+
 /**
  * @brief VF - start the RX Queue by sending a message to the PF
  *
@@ -263,5 +277,15 @@ ecore_vf_pf_tunnel_param_update(struct ecore_hwfn *p_hwfn,
                                struct ecore_tunnel_info *p_tunn);
 
 void ecore_vf_set_vf_start_tunn_update_param(struct ecore_tunnel_info *p_tun);
+
+enum _ecore_status_t ecore_set_rxq_coalesce(struct ecore_hwfn *p_hwfn,
+                                           struct ecore_ptt *p_ptt,
+                                           u16 coalesce,
+                                           struct ecore_queue_cid *p_cid);
+
+enum _ecore_status_t ecore_set_txq_coalesce(struct ecore_hwfn *p_hwfn,
+                                           struct ecore_ptt *p_ptt,
+                                           u16 coalesce,
+                                           struct ecore_queue_cid *p_cid);
 #endif
 #endif /* __ECORE_VF_H__ */
index 82ed4f5..e0b63bf 100644 (file)
@@ -457,6 +457,14 @@ struct tlv_buffer_size {
        u8 tlv_buffer[TLV_BUFFER_SIZE];
 };
 
+struct vfpf_update_coalesce {
+       struct vfpf_first_tlv first_tlv;
+       u16 rx_coal;
+       u16 tx_coal;
+       u16 qid;
+       u8 padding[2];
+};
+
 union vfpf_tlvs {
        struct vfpf_first_tlv                   first_tlv;
        struct vfpf_acquire_tlv                 acquire;
@@ -469,6 +477,7 @@ union vfpf_tlvs {
        struct vfpf_vport_update_tlv            vport_update;
        struct vfpf_ucast_filter_tlv            ucast_filter;
        struct vfpf_update_tunn_param_tlv       tunn_param_update;
+       struct vfpf_update_coalesce             update_coalesce;
        struct tlv_buffer_size                  tlv_buf_size;
 };
 
@@ -592,6 +601,7 @@ enum {
        CHANNEL_TLV_VPORT_UPDATE_ACCEPT_ANY_VLAN,
        CHANNEL_TLV_VPORT_UPDATE_SGE_TPA,
        CHANNEL_TLV_UPDATE_TUNN_PARAM,
+       CHANNEL_TLV_COALESCE_UPDATE,
        CHANNEL_TLV_MAX,
 
        /* Required for iterating over vport-update tlvs.