qed: iWARP CM add active side connect
This patch implements the active side connect. Offload a connection, process MPA reply and send RTR. In some of the common passive/active functions, the active side will work in blocking mode. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>zero-colors
Kalderon, Michal
David S. Miller
parent
456a584947
commit
4b0fdd7c8b
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@ -611,7 +611,10 @@ qed_iwarp_tcp_offload(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
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memset(&init_data, 0, sizeof(init_data));
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init_data.cid = ep->tcp_cid;
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init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
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init_data.comp_mode = QED_SPQ_MODE_CB;
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if (ep->connect_mode == TCP_CONNECT_PASSIVE)
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init_data.comp_mode = QED_SPQ_MODE_CB;
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else
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init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
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rc = qed_sp_init_request(p_hwfn, &p_ent,
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IWARP_RAMROD_CMD_ID_TCP_OFFLOAD,
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@ -711,7 +714,7 @@ qed_iwarp_mpa_received(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
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DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
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"private_data_len=%x handshake_mode=%x private_data=(%x)\n",
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async_data->mpa_request.ulp_data_len,
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mpa_rev, *((u32 *)((u8 *)ep->ep_buffer_virt->in_pdata)));
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mpa_rev, *((u32 *)(ep->ep_buffer_virt->in_pdata)));
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if (mpa_rev == MPA_NEGOTIATION_TYPE_ENHANCED) {
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/* Read ord/ird values from private data buffer */
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@ -801,7 +804,10 @@ qed_iwarp_mpa_offload(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
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init_data.cid = reject ? ep->tcp_cid : qp->icid;
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init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
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init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
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if (ep->connect_mode == TCP_CONNECT_ACTIVE)
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init_data.comp_mode = QED_SPQ_MODE_CB;
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else
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init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
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rc = qed_sp_init_request(p_hwfn, &p_ent,
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IWARP_RAMROD_CMD_ID_MPA_OFFLOAD,
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@ -890,6 +896,59 @@ qed_iwarp_return_ep(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
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spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
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}
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void
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qed_iwarp_parse_private_data(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
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{
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struct mpa_v2_hdr *mpa_v2_params;
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union async_output *async_data;
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u16 mpa_ird, mpa_ord;
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u8 mpa_data_size = 0;
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if (MPA_REV2(p_hwfn->p_rdma_info->iwarp.mpa_rev)) {
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mpa_v2_params =
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(struct mpa_v2_hdr *)(ep->ep_buffer_virt->in_pdata);
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mpa_data_size = sizeof(*mpa_v2_params);
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mpa_ird = ntohs(mpa_v2_params->ird);
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mpa_ord = ntohs(mpa_v2_params->ord);
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ep->cm_info.ird = (u8)(mpa_ord & MPA_V2_IRD_ORD_MASK);
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ep->cm_info.ord = (u8)(mpa_ird & MPA_V2_IRD_ORD_MASK);
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}
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async_data = &ep->ep_buffer_virt->async_output;
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ep->cm_info.private_data = ep->ep_buffer_virt->in_pdata + mpa_data_size;
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ep->cm_info.private_data_len = async_data->mpa_response.ulp_data_len -
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mpa_data_size;
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}
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void
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qed_iwarp_mpa_reply_arrived(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
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{
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struct qed_iwarp_cm_event_params params;
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if (ep->connect_mode == TCP_CONNECT_PASSIVE) {
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DP_NOTICE(p_hwfn,
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"MPA reply event not expected on passive side!\n");
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return;
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}
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params.event = QED_IWARP_EVENT_ACTIVE_MPA_REPLY;
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qed_iwarp_parse_private_data(p_hwfn, ep);
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DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
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"MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x\n",
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ep->mpa_rev, ep->cm_info.ord, ep->cm_info.ird);
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params.cm_info = &ep->cm_info;
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params.ep_context = ep;
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params.status = 0;
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ep->mpa_reply_processed = true;
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ep->event_cb(ep->cb_context, ¶ms);
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}
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#define QED_IWARP_CONNECT_MODE_STRING(ep) \
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((ep)->connect_mode == TCP_CONNECT_PASSIVE) ? "Passive" : "Active"
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@ -902,7 +961,13 @@ qed_iwarp_mpa_complete(struct qed_hwfn *p_hwfn,
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{
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struct qed_iwarp_cm_event_params params;
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params.event = QED_IWARP_EVENT_PASSIVE_COMPLETE;
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if (ep->connect_mode == TCP_CONNECT_ACTIVE)
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params.event = QED_IWARP_EVENT_ACTIVE_COMPLETE;
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else
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params.event = QED_IWARP_EVENT_PASSIVE_COMPLETE;
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if (ep->connect_mode == TCP_CONNECT_ACTIVE && !ep->mpa_reply_processed)
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qed_iwarp_parse_private_data(p_hwfn, ep);
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DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
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"MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x\n",
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@ -977,6 +1042,102 @@ qed_iwarp_mpa_v2_set_private(struct qed_hwfn *p_hwfn,
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}
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}
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int qed_iwarp_connect(void *rdma_cxt,
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struct qed_iwarp_connect_in *iparams,
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struct qed_iwarp_connect_out *oparams)
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{
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struct qed_hwfn *p_hwfn = rdma_cxt;
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struct qed_iwarp_info *iwarp_info;
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struct qed_iwarp_ep *ep;
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u8 mpa_data_size = 0;
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u8 ts_hdr_size = 0;
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u32 cid;
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int rc;
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if ((iparams->cm_info.ord > QED_IWARP_ORD_DEFAULT) ||
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(iparams->cm_info.ird > QED_IWARP_IRD_DEFAULT)) {
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DP_NOTICE(p_hwfn,
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"QP(0x%x) ERROR: Invalid ord(0x%x)/ird(0x%x)\n",
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iparams->qp->icid, iparams->cm_info.ord,
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iparams->cm_info.ird);
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return -EINVAL;
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}
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iwarp_info = &p_hwfn->p_rdma_info->iwarp;
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/* Allocate ep object */
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rc = qed_iwarp_alloc_cid(p_hwfn, &cid);
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if (rc)
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return rc;
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rc = qed_iwarp_create_ep(p_hwfn, &ep);
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if (rc)
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goto err;
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ep->tcp_cid = cid;
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spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
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list_add_tail(&ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_list);
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spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
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ep->qp = iparams->qp;
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ep->qp->ep = ep;
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ether_addr_copy(ep->remote_mac_addr, iparams->remote_mac_addr);
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ether_addr_copy(ep->local_mac_addr, iparams->local_mac_addr);
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memcpy(&ep->cm_info, &iparams->cm_info, sizeof(ep->cm_info));
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ep->cm_info.ord = iparams->cm_info.ord;
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ep->cm_info.ird = iparams->cm_info.ird;
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ep->rtr_type = iwarp_info->rtr_type;
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if (!iwarp_info->peer2peer)
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ep->rtr_type = MPA_RTR_TYPE_NONE;
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if ((ep->rtr_type & MPA_RTR_TYPE_ZERO_READ) && (ep->cm_info.ord == 0))
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ep->cm_info.ord = 1;
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ep->mpa_rev = iwarp_info->mpa_rev;
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qed_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size);
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ep->cm_info.private_data = ep->ep_buffer_virt->out_pdata;
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ep->cm_info.private_data_len = iparams->cm_info.private_data_len +
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mpa_data_size;
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memcpy((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size,
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iparams->cm_info.private_data,
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iparams->cm_info.private_data_len);
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if (p_hwfn->p_rdma_info->iwarp.tcp_flags & QED_IWARP_TS_EN)
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ts_hdr_size = TIMESTAMP_HEADER_SIZE;
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ep->mss = iparams->mss - ts_hdr_size;
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ep->mss = min_t(u16, QED_IWARP_MAX_FW_MSS, ep->mss);
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ep->event_cb = iparams->event_cb;
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ep->cb_context = iparams->cb_context;
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ep->connect_mode = TCP_CONNECT_ACTIVE;
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oparams->ep_context = ep;
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rc = qed_iwarp_tcp_offload(p_hwfn, ep);
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DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) EP(0x%x) rc = %d\n",
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iparams->qp->icid, ep->tcp_cid, rc);
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if (rc) {
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qed_iwarp_destroy_ep(p_hwfn, ep, true);
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goto err;
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}
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return rc;
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err:
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qed_iwarp_cid_cleaned(p_hwfn, cid);
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return rc;
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}
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static struct qed_iwarp_ep *qed_iwarp_get_free_ep(struct qed_hwfn *p_hwfn)
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{
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struct qed_iwarp_ep *ep = NULL;
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@ -1174,12 +1335,12 @@ void qed_iwarp_resc_free(struct qed_hwfn *p_hwfn)
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int qed_iwarp_accept(void *rdma_cxt, struct qed_iwarp_accept_in *iparams)
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{
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struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
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struct qed_hwfn *p_hwfn = rdma_cxt;
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struct qed_iwarp_ep *ep;
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u8 mpa_data_size = 0;
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int rc;
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ep = (struct qed_iwarp_ep *)iparams->ep_context;
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ep = iparams->ep_context;
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if (!ep) {
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DP_ERR(p_hwfn, "Ep Context receive in accept is NULL\n");
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return -EINVAL;
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@ -1799,13 +1960,19 @@ void
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qed_iwarp_connect_complete(struct qed_hwfn *p_hwfn,
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struct qed_iwarp_ep *ep, u8 fw_return_code)
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{
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/* Done with the SYN packet, post back to ll2 rx */
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qed_iwarp_ll2_post_rx(p_hwfn, ep->syn,
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p_hwfn->p_rdma_info->iwarp.ll2_syn_handle);
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ep->syn = NULL;
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u8 ll2_syn_handle = p_hwfn->p_rdma_info->iwarp.ll2_syn_handle;
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/* If connect failed - upper layer doesn't know about it */
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qed_iwarp_mpa_received(p_hwfn, ep);
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if (ep->connect_mode == TCP_CONNECT_PASSIVE) {
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/* Done with the SYN packet, post back to ll2 rx */
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qed_iwarp_ll2_post_rx(p_hwfn, ep->syn, ll2_syn_handle);
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ep->syn = NULL;
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/* If connect failed - upper layer doesn't know about it */
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qed_iwarp_mpa_received(p_hwfn, ep);
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} else {
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qed_iwarp_mpa_offload(p_hwfn, ep);
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}
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}
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static inline bool
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@ -1842,6 +2009,16 @@ static int qed_iwarp_async_event(struct qed_hwfn *p_hwfn,
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ep->tcp_cid, fw_return_code);
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qed_iwarp_connect_complete(p_hwfn, ep, fw_return_code);
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break;
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/* Async event for active side only */
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case IWARP_EVENT_TYPE_ASYNC_ENHANCED_MPA_REPLY_ARRIVED:
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if (!qed_iwarp_check_ep_ok(p_hwfn, ep))
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return -EINVAL;
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DP_VERBOSE(p_hwfn,
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QED_MSG_RDMA,
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"QP(0x%x) IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_MPA_REPLY_ARRIVED fw_ret_code=%d\n",
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ep->cid, fw_return_code);
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qed_iwarp_mpa_reply_arrived(p_hwfn, ep);
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break;
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case IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE:
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if (!qed_iwarp_check_ep_ok(p_hwfn, ep))
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return -EINVAL;
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@ -1918,6 +2095,45 @@ int qed_iwarp_destroy_listen(void *rdma_cxt, void *handle)
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return 0;
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}
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int qed_iwarp_send_rtr(void *rdma_cxt, struct qed_iwarp_send_rtr_in *iparams)
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{
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struct qed_hwfn *p_hwfn = rdma_cxt;
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struct qed_sp_init_data init_data;
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struct qed_spq_entry *p_ent;
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struct qed_iwarp_ep *ep;
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struct qed_rdma_qp *qp;
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int rc;
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ep = iparams->ep_context;
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if (!ep) {
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DP_ERR(p_hwfn, "Ep Context receive in send_rtr is NULL\n");
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return -EINVAL;
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}
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qp = ep->qp;
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DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) EP(0x%x)\n",
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qp->icid, ep->tcp_cid);
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memset(&init_data, 0, sizeof(init_data));
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init_data.cid = qp->icid;
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init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
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init_data.comp_mode = QED_SPQ_MODE_CB;
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rc = qed_sp_init_request(p_hwfn, &p_ent,
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IWARP_RAMROD_CMD_ID_MPA_OFFLOAD_SEND_RTR,
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PROTOCOLID_IWARP, &init_data);
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if (rc)
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return rc;
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rc = qed_spq_post(p_hwfn, p_ent, NULL);
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DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = 0x%x\n", rc);
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return rc;
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}
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void
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qed_iwarp_query_qp(struct qed_rdma_qp *qp,
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struct qed_rdma_query_qp_out_params *out_params)
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@ -169,6 +169,11 @@ int qed_iwarp_fw_destroy(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp);
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void qed_iwarp_query_qp(struct qed_rdma_qp *qp,
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struct qed_rdma_query_qp_out_params *out_params);
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int
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qed_iwarp_connect(void *rdma_cxt,
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struct qed_iwarp_connect_in *iparams,
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struct qed_iwarp_connect_out *oparams);
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int
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qed_iwarp_create_listen(void *rdma_cxt,
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struct qed_iwarp_listen_in *iparams,
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@ -179,4 +184,6 @@ int qed_iwarp_accept(void *rdma_cxt, struct qed_iwarp_accept_in *iparams);
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int qed_iwarp_reject(void *rdma_cxt, struct qed_iwarp_reject_in *iparams);
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int qed_iwarp_destroy_listen(void *rdma_cxt, void *handle);
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int qed_iwarp_send_rtr(void *rdma_cxt, struct qed_iwarp_send_rtr_in *iparams);
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#endif
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@ -1772,8 +1772,12 @@ static const struct qed_rdma_ops qed_rdma_ops_pass = {
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.ll2_set_fragment_of_tx_packet = &qed_ll2_set_fragment_of_tx_packet,
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.ll2_set_mac_filter = &qed_roce_ll2_set_mac_filter,
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.ll2_get_stats = &qed_ll2_get_stats,
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.iwarp_connect = &qed_iwarp_connect,
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.iwarp_create_listen = &qed_iwarp_create_listen,
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.iwarp_destroy_listen = &qed_iwarp_destroy_listen,
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.iwarp_accept = &qed_iwarp_accept,
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.iwarp_reject = &qed_iwarp_reject,
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.iwarp_send_rtr = &qed_iwarp_send_rtr,
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};
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const struct qed_rdma_ops *qed_get_rdma_ops(void)
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@ -473,6 +473,8 @@ struct qed_rdma_counters_out_params {
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enum qed_iwarp_event_type {
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QED_IWARP_EVENT_MPA_REQUEST, /* Passive side request received */
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QED_IWARP_EVENT_PASSIVE_COMPLETE, /* ack on mpa response */
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QED_IWARP_EVENT_ACTIVE_COMPLETE, /* Active side reply received */
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QED_IWARP_EVENT_ACTIVE_MPA_REPLY,
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};
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enum qed_tcp_ip_version {
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@ -503,6 +505,20 @@ struct qed_iwarp_cm_event_params {
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typedef int (*iwarp_event_handler) (void *context,
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struct qed_iwarp_cm_event_params *event);
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struct qed_iwarp_connect_in {
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iwarp_event_handler event_cb;
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void *cb_context;
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struct qed_rdma_qp *qp;
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struct qed_iwarp_cm_info cm_info;
|
||||
u16 mss;
|
||||
u8 remote_mac_addr[ETH_ALEN];
|
||||
u8 local_mac_addr[ETH_ALEN];
|
||||
};
|
||||
|
||||
struct qed_iwarp_connect_out {
|
||||
void *ep_context;
|
||||
};
|
||||
|
||||
struct qed_iwarp_listen_in {
|
||||
iwarp_event_handler event_cb;
|
||||
void *cb_context; /* passed to event_cb */
|
||||
|
|
@ -534,6 +550,10 @@ struct qed_iwarp_reject_in {
|
|||
u16 private_data_len;
|
||||
};
|
||||
|
||||
struct qed_iwarp_send_rtr_in {
|
||||
void *ep_context;
|
||||
};
|
||||
|
||||
struct qed_roce_ll2_header {
|
||||
void *vaddr;
|
||||
dma_addr_t baddr;
|
||||
|
|
@ -640,6 +660,10 @@ struct qed_rdma_ops {
|
|||
int (*ll2_set_mac_filter)(struct qed_dev *cdev,
|
||||
u8 *old_mac_address, u8 *new_mac_address);
|
||||
|
||||
int (*iwarp_connect)(void *rdma_cxt,
|
||||
struct qed_iwarp_connect_in *iparams,
|
||||
struct qed_iwarp_connect_out *oparams);
|
||||
|
||||
int (*iwarp_create_listen)(void *rdma_cxt,
|
||||
struct qed_iwarp_listen_in *iparams,
|
||||
struct qed_iwarp_listen_out *oparams);
|
||||
|
|
@ -652,6 +676,8 @@ struct qed_rdma_ops {
|
|||
|
||||
int (*iwarp_destroy_listen)(void *rdma_cxt, void *handle);
|
||||
|
||||
int (*iwarp_send_rtr)(void *rdma_cxt,
|
||||
struct qed_iwarp_send_rtr_in *iparams);
|
||||
};
|
||||
|
||||
const struct qed_rdma_ops *qed_get_rdma_ops(void);
|
||||
|
|
|
|||
Loading…
Reference in New Issue