common/octeontx2: add uplink message support
[dpdk.git] / drivers / common / octeontx2 / otx2_dev.c
index c5f7d50..0994385 100644 (file)
@@ -195,6 +195,57 @@ vf_pf_process_msgs(struct otx2_dev *dev, uint16_t vf)
        return i;
 }
 
+static int
+vf_pf_process_up_msgs(struct otx2_dev *dev, uint16_t vf)
+{
+       struct otx2_mbox *mbox = &dev->mbox_vfpf_up;
+       struct otx2_mbox_dev *mdev = &mbox->dev[vf];
+       struct mbox_hdr *req_hdr;
+       struct mbox_msghdr *msg;
+       int msgs_acked = 0;
+       int offset;
+       uint16_t i;
+
+       req_hdr = (struct mbox_hdr *)((uintptr_t)mdev->mbase + mbox->rx_start);
+       if (req_hdr->num_msgs == 0)
+               return 0;
+
+       offset = mbox->rx_start + RTE_ALIGN(sizeof(*req_hdr), MBOX_MSG_ALIGN);
+
+       for (i = 0; i < req_hdr->num_msgs; i++) {
+               msg = (struct mbox_msghdr *)((uintptr_t)mdev->mbase + offset);
+
+               msgs_acked++;
+               /* RVU_PF_FUNC_S */
+               msg->pcifunc = otx2_pfvf_func(dev->pf, vf);
+
+               switch (msg->id) {
+               case MBOX_MSG_CGX_LINK_EVENT:
+                       otx2_base_dbg("PF: Msg 0x%x (%s) fn:0x%x (pf:%d,vf:%d)",
+                                     msg->id, otx2_mbox_id2name(msg->id),
+                                     msg->pcifunc, otx2_get_pf(msg->pcifunc),
+                                     otx2_get_vf(msg->pcifunc));
+                       break;
+               case MBOX_MSG_CGX_PTP_RX_INFO:
+                       otx2_base_dbg("PF: Msg 0x%x (%s) fn:0x%x (pf:%d,vf:%d)",
+                                     msg->id, otx2_mbox_id2name(msg->id),
+                                     msg->pcifunc, otx2_get_pf(msg->pcifunc),
+                                     otx2_get_vf(msg->pcifunc));
+                       break;
+               default:
+                       otx2_err("Not handled UP msg 0x%x (%s) func:0x%x",
+                                msg->id, otx2_mbox_id2name(msg->id),
+                                msg->pcifunc);
+               }
+               offset = mbox->rx_start + msg->next_msgoff;
+       }
+       otx2_mbox_reset(mbox, vf);
+       mdev->msgs_acked = msgs_acked;
+       rte_wmb();
+
+       return i;
+}
+
 static void
 otx2_vf_pf_mbox_handle_msg(void *param)
 {
@@ -209,6 +260,8 @@ otx2_vf_pf_mbox_handle_msg(void *param)
                        otx2_base_dbg("Process vf:%d request (pf:%d, vf:%d)",
                                       vf, dev->pf, dev->vf);
                        vf_pf_process_msgs(dev, vf);
+                       /* UP messages */
+                       vf_pf_process_up_msgs(dev, vf);
                        dev->intr.bits[vf/max_bits] &= ~(BIT_ULL(vf%max_bits));
                }
        }
@@ -291,6 +344,185 @@ otx2_process_msgs(struct otx2_dev *dev, struct otx2_mbox *mbox)
        rte_wmb();
 }
 
+/* Copies the message received from AF and sends it to VF */
+static void
+pf_vf_mbox_send_up_msg(struct otx2_dev *dev, void *rec_msg)
+{
+       uint16_t max_bits = sizeof(dev->active_vfs[0]) * sizeof(uint64_t);
+       struct otx2_mbox *vf_mbox = &dev->mbox_vfpf_up;
+       struct msg_req *msg = rec_msg;
+       struct mbox_msghdr *vf_msg;
+       uint16_t vf;
+       size_t size;
+
+       size = RTE_ALIGN(otx2_mbox_id2size(msg->hdr.id), MBOX_MSG_ALIGN);
+       /* Send UP message to all VF's */
+       for (vf = 0; vf < vf_mbox->ndevs; vf++) {
+               /* VF active */
+               if (!(dev->active_vfs[vf / max_bits] & (BIT_ULL(vf))))
+                       continue;
+
+               otx2_base_dbg("(%s) size: %zx to VF: %d",
+                             otx2_mbox_id2name(msg->hdr.id), size, vf);
+
+               /* Reserve PF/VF mbox message */
+               vf_msg = otx2_mbox_alloc_msg(vf_mbox, vf, size);
+               if (!vf_msg) {
+                       otx2_err("Failed to alloc VF%d UP message", vf);
+                       continue;
+               }
+               otx2_mbox_req_init(msg->hdr.id, vf_msg);
+
+               /*
+                * Copy message from AF<->PF UP mbox
+                * to PF<->VF UP mbox
+                */
+               otx2_mbox_memcpy((uint8_t *)vf_msg +
+                                sizeof(struct mbox_msghdr), (uint8_t *)msg
+                                + sizeof(struct mbox_msghdr), size -
+                                sizeof(struct mbox_msghdr));
+
+               vf_msg->rc = msg->hdr.rc;
+               /* Set PF to be a sender */
+               vf_msg->pcifunc = dev->pf_func;
+
+               /* Send to VF */
+               otx2_mbox_msg_send(vf_mbox, vf);
+       }
+}
+
+static int
+otx2_mbox_up_handler_cgx_link_event(struct otx2_dev *dev,
+                                   struct cgx_link_info_msg *msg,
+                                   struct msg_rsp *rsp)
+{
+       struct cgx_link_user_info *linfo = &msg->link_info;
+
+       otx2_base_dbg("pf:%d/vf:%d NIC Link %s --> 0x%x (%s) from: pf:%d/vf:%d",
+                     otx2_get_pf(dev->pf_func), otx2_get_vf(dev->pf_func),
+                     linfo->link_up ? "UP" : "DOWN", msg->hdr.id,
+                     otx2_mbox_id2name(msg->hdr.id),
+                     otx2_get_pf(msg->hdr.pcifunc),
+                     otx2_get_vf(msg->hdr.pcifunc));
+
+       /* PF gets link notification from AF */
+       if (otx2_get_pf(msg->hdr.pcifunc) == 0) {
+               if (dev->ops && dev->ops->link_status_update)
+                       dev->ops->link_status_update(dev, linfo);
+
+               /* Forward the same message as received from AF to VF */
+               pf_vf_mbox_send_up_msg(dev, msg);
+       } else {
+               /* VF gets link up notification */
+               if (dev->ops && dev->ops->link_status_update)
+                       dev->ops->link_status_update(dev, linfo);
+       }
+
+       rsp->hdr.rc = 0;
+       return 0;
+}
+
+static int
+otx2_mbox_up_handler_cgx_ptp_rx_info(struct otx2_dev *dev,
+                                    struct cgx_ptp_rx_info_msg *msg,
+                                    struct msg_rsp *rsp)
+{
+       otx2_nix_dbg("pf:%d/vf:%d PTP mode %s --> 0x%x (%s) from: pf:%d/vf:%d",
+                otx2_get_pf(dev->pf_func),
+                otx2_get_vf(dev->pf_func),
+                msg->ptp_en ? "ENABLED" : "DISABLED",
+                msg->hdr.id, otx2_mbox_id2name(msg->hdr.id),
+                otx2_get_pf(msg->hdr.pcifunc),
+                otx2_get_vf(msg->hdr.pcifunc));
+
+       /* PF gets PTP notification from AF */
+       if (otx2_get_pf(msg->hdr.pcifunc) == 0) {
+               if (dev->ops && dev->ops->ptp_info_update)
+                       dev->ops->ptp_info_update(dev, msg->ptp_en);
+
+               /* Forward the same message as received from AF to VF */
+               pf_vf_mbox_send_up_msg(dev, msg);
+       } else {
+               /* VF gets PTP notification */
+               if (dev->ops && dev->ops->ptp_info_update)
+                       dev->ops->ptp_info_update(dev, msg->ptp_en);
+       }
+
+       rsp->hdr.rc = 0;
+       return 0;
+}
+
+static int
+mbox_process_msgs_up(struct otx2_dev *dev, struct mbox_msghdr *req)
+{
+       /* Check if valid, if not reply with a invalid msg */
+       if (req->sig != OTX2_MBOX_REQ_SIG)
+               return -EIO;
+
+       switch (req->id) {
+#define M(_name, _id, _fn_name, _req_type, _rsp_type)          \
+       case _id: {                                             \
+               struct _rsp_type *rsp;                          \
+               int err;                                        \
+                                                               \
+               rsp = (struct _rsp_type *)otx2_mbox_alloc_msg(  \
+                       &dev->mbox_up, 0,                       \
+                       sizeof(struct _rsp_type));              \
+               if (!rsp)                                       \
+                       return -ENOMEM;                         \
+                                                               \
+               rsp->hdr.id = _id;                              \
+               rsp->hdr.sig = OTX2_MBOX_RSP_SIG;               \
+               rsp->hdr.pcifunc = dev->pf_func;                \
+               rsp->hdr.rc = 0;                                \
+                                                               \
+               err = otx2_mbox_up_handler_ ## _fn_name(        \
+                       dev, (struct _req_type *)req, rsp);     \
+               return err;                                     \
+       }
+MBOX_UP_CGX_MESSAGES
+#undef M
+
+       default :
+               otx2_reply_invalid_msg(&dev->mbox_up, 0, 0, req->id);
+       }
+
+       return -ENODEV;
+}
+
+static void
+otx2_process_msgs_up(struct otx2_dev *dev, struct otx2_mbox *mbox)
+{
+       struct otx2_mbox_dev *mdev = &mbox->dev[0];
+       struct mbox_hdr *req_hdr;
+       struct mbox_msghdr *msg;
+       int i, err, offset;
+
+       req_hdr = (struct mbox_hdr *)((uintptr_t)mdev->mbase + mbox->rx_start);
+       if (req_hdr->num_msgs == 0)
+               return;
+
+       offset = mbox->rx_start + RTE_ALIGN(sizeof(*req_hdr), MBOX_MSG_ALIGN);
+       for (i = 0; i < req_hdr->num_msgs; i++) {
+               msg = (struct mbox_msghdr *)((uintptr_t)mdev->mbase + offset);
+
+               otx2_base_dbg("Message 0x%x (%s) pf:%d/vf:%d",
+                               msg->id, otx2_mbox_id2name(msg->id),
+                               otx2_get_pf(msg->pcifunc),
+                               otx2_get_vf(msg->pcifunc));
+               err = mbox_process_msgs_up(dev, msg);
+               if (err)
+                       otx2_err("Error %d handling 0x%x (%s)",
+                                err, msg->id, otx2_mbox_id2name(msg->id));
+               offset = mbox->rx_start + msg->next_msgoff;
+       }
+       /* Send mbox responses */
+       if (mdev->num_msgs) {
+               otx2_base_dbg("Reply num_msgs:%d", mdev->num_msgs);
+               otx2_mbox_msg_send(mbox, 0);
+       }
+}
+
 static void
 otx2_pf_vf_mbox_irq(void *param)
 {
@@ -303,10 +535,13 @@ otx2_pf_vf_mbox_irq(void *param)
 
        otx2_write64(intr, dev->bar2 + RVU_VF_INT);
        otx2_base_dbg("Irq 0x%" PRIx64 "(pf:%d,vf:%d)", intr, dev->pf, dev->vf);
-       if (intr)
+       if (intr) {
                /* First process all configuration messages */
                otx2_process_msgs(dev, dev->mbox);
 
+               /* Process Uplink messages */
+               otx2_process_msgs_up(dev, &dev->mbox_up);
+       }
 }
 
 static void
@@ -322,9 +557,13 @@ otx2_af_pf_mbox_irq(void *param)
        otx2_write64(intr, dev->bar2 + RVU_PF_INT);
 
        otx2_base_dbg("Irq 0x%" PRIx64 "(pf:%d,vf:%d)", intr, dev->pf, dev->vf);
-       if (intr)
+       if (intr) {
                /* First process all configuration messages */
                otx2_process_msgs(dev, dev->mbox);
+
+               /* Process Uplink messages */
+               otx2_process_msgs_up(dev, &dev->mbox_up);
+       }
 }
 
 static int