| // SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB |
| /* Copyright (c) 2015 - 2021 Intel Corporation */ |
| #include "osdep.h" |
| #include "status.h" |
| #include "hmc.h" |
| #include "defs.h" |
| #include "type.h" |
| #include "protos.h" |
| #include "puda.h" |
| #include "ws.h" |
| |
| static void irdma_ieq_receive(struct irdma_sc_vsi *vsi, |
| struct irdma_puda_buf *buf); |
| static void irdma_ieq_tx_compl(struct irdma_sc_vsi *vsi, void *sqwrid); |
| static void irdma_ilq_putback_rcvbuf(struct irdma_sc_qp *qp, |
| struct irdma_puda_buf *buf, u32 wqe_idx); |
| /** |
| * irdma_puda_get_listbuf - get buffer from puda list |
| * @list: list to use for buffers (ILQ or IEQ) |
| */ |
| static struct irdma_puda_buf *irdma_puda_get_listbuf(struct list_head *list) |
| { |
| struct irdma_puda_buf *buf = NULL; |
| |
| if (!list_empty(list)) { |
| buf = (struct irdma_puda_buf *)list->next; |
| list_del((struct list_head *)&buf->list); |
| } |
| |
| return buf; |
| } |
| |
| /** |
| * irdma_puda_get_bufpool - return buffer from resource |
| * @rsrc: resource to use for buffer |
| */ |
| struct irdma_puda_buf *irdma_puda_get_bufpool(struct irdma_puda_rsrc *rsrc) |
| { |
| struct irdma_puda_buf *buf = NULL; |
| struct list_head *list = &rsrc->bufpool; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&rsrc->bufpool_lock, flags); |
| buf = irdma_puda_get_listbuf(list); |
| if (buf) { |
| rsrc->avail_buf_count--; |
| buf->vsi = rsrc->vsi; |
| } else { |
| rsrc->stats_buf_alloc_fail++; |
| } |
| spin_unlock_irqrestore(&rsrc->bufpool_lock, flags); |
| |
| return buf; |
| } |
| |
| /** |
| * irdma_puda_ret_bufpool - return buffer to rsrc list |
| * @rsrc: resource to use for buffer |
| * @buf: buffer to return to resource |
| */ |
| void irdma_puda_ret_bufpool(struct irdma_puda_rsrc *rsrc, |
| struct irdma_puda_buf *buf) |
| { |
| unsigned long flags; |
| |
| buf->do_lpb = false; |
| spin_lock_irqsave(&rsrc->bufpool_lock, flags); |
| list_add(&buf->list, &rsrc->bufpool); |
| spin_unlock_irqrestore(&rsrc->bufpool_lock, flags); |
| rsrc->avail_buf_count++; |
| } |
| |
| /** |
| * irdma_puda_post_recvbuf - set wqe for rcv buffer |
| * @rsrc: resource ptr |
| * @wqe_idx: wqe index to use |
| * @buf: puda buffer for rcv q |
| * @initial: flag if during init time |
| */ |
| static void irdma_puda_post_recvbuf(struct irdma_puda_rsrc *rsrc, u32 wqe_idx, |
| struct irdma_puda_buf *buf, bool initial) |
| { |
| __le64 *wqe; |
| struct irdma_sc_qp *qp = &rsrc->qp; |
| u64 offset24 = 0; |
| |
| /* Synch buffer for use by device */ |
| dma_sync_single_for_device(rsrc->dev->hw->device, buf->mem.pa, |
| buf->mem.size, DMA_BIDIRECTIONAL); |
| qp->qp_uk.rq_wrid_array[wqe_idx] = (uintptr_t)buf; |
| wqe = qp->qp_uk.rq_base[wqe_idx].elem; |
| if (!initial) |
| get_64bit_val(wqe, 24, &offset24); |
| |
| offset24 = (offset24) ? 0 : FIELD_PREP(IRDMAQPSQ_VALID, 1); |
| |
| set_64bit_val(wqe, 16, 0); |
| set_64bit_val(wqe, 0, buf->mem.pa); |
| if (qp->qp_uk.uk_attrs->hw_rev == IRDMA_GEN_1) { |
| set_64bit_val(wqe, 8, |
| FIELD_PREP(IRDMAQPSQ_GEN1_FRAG_LEN, buf->mem.size)); |
| } else { |
| set_64bit_val(wqe, 8, |
| FIELD_PREP(IRDMAQPSQ_FRAG_LEN, buf->mem.size) | |
| offset24); |
| } |
| dma_wmb(); /* make sure WQE is written before valid bit is set */ |
| |
| set_64bit_val(wqe, 24, offset24); |
| } |
| |
| /** |
| * irdma_puda_replenish_rq - post rcv buffers |
| * @rsrc: resource to use for buffer |
| * @initial: flag if during init time |
| */ |
| static enum irdma_status_code |
| irdma_puda_replenish_rq(struct irdma_puda_rsrc *rsrc, bool initial) |
| { |
| u32 i; |
| u32 invalid_cnt = rsrc->rxq_invalid_cnt; |
| struct irdma_puda_buf *buf = NULL; |
| |
| for (i = 0; i < invalid_cnt; i++) { |
| buf = irdma_puda_get_bufpool(rsrc); |
| if (!buf) |
| return IRDMA_ERR_list_empty; |
| irdma_puda_post_recvbuf(rsrc, rsrc->rx_wqe_idx, buf, initial); |
| rsrc->rx_wqe_idx = ((rsrc->rx_wqe_idx + 1) % rsrc->rq_size); |
| rsrc->rxq_invalid_cnt--; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * irdma_puda_alloc_buf - allocate mem for buffer |
| * @dev: iwarp device |
| * @len: length of buffer |
| */ |
| static struct irdma_puda_buf *irdma_puda_alloc_buf(struct irdma_sc_dev *dev, |
| u32 len) |
| { |
| struct irdma_puda_buf *buf; |
| struct irdma_virt_mem buf_mem; |
| |
| buf_mem.size = sizeof(struct irdma_puda_buf); |
| buf_mem.va = kzalloc(buf_mem.size, GFP_KERNEL); |
| if (!buf_mem.va) |
| return NULL; |
| |
| buf = buf_mem.va; |
| buf->mem.size = len; |
| buf->mem.va = kzalloc(buf->mem.size, GFP_KERNEL); |
| if (!buf->mem.va) |
| goto free_virt; |
| buf->mem.pa = dma_map_single(dev->hw->device, buf->mem.va, |
| buf->mem.size, DMA_BIDIRECTIONAL); |
| if (dma_mapping_error(dev->hw->device, buf->mem.pa)) { |
| kfree(buf->mem.va); |
| goto free_virt; |
| } |
| |
| buf->buf_mem.va = buf_mem.va; |
| buf->buf_mem.size = buf_mem.size; |
| |
| return buf; |
| |
| free_virt: |
| kfree(buf_mem.va); |
| return NULL; |
| } |
| |
| /** |
| * irdma_puda_dele_buf - delete buffer back to system |
| * @dev: iwarp device |
| * @buf: buffer to free |
| */ |
| static void irdma_puda_dele_buf(struct irdma_sc_dev *dev, |
| struct irdma_puda_buf *buf) |
| { |
| dma_unmap_single(dev->hw->device, buf->mem.pa, buf->mem.size, |
| DMA_BIDIRECTIONAL); |
| kfree(buf->mem.va); |
| kfree(buf->buf_mem.va); |
| } |
| |
| /** |
| * irdma_puda_get_next_send_wqe - return next wqe for processing |
| * @qp: puda qp for wqe |
| * @wqe_idx: wqe index for caller |
| */ |
| static __le64 *irdma_puda_get_next_send_wqe(struct irdma_qp_uk *qp, |
| u32 *wqe_idx) |
| { |
| __le64 *wqe = NULL; |
| enum irdma_status_code ret_code = 0; |
| |
| *wqe_idx = IRDMA_RING_CURRENT_HEAD(qp->sq_ring); |
| if (!*wqe_idx) |
| qp->swqe_polarity = !qp->swqe_polarity; |
| IRDMA_RING_MOVE_HEAD(qp->sq_ring, ret_code); |
| if (ret_code) |
| return wqe; |
| |
| wqe = qp->sq_base[*wqe_idx].elem; |
| |
| return wqe; |
| } |
| |
| /** |
| * irdma_puda_poll_info - poll cq for completion |
| * @cq: cq for poll |
| * @info: info return for successful completion |
| */ |
| static enum irdma_status_code |
| irdma_puda_poll_info(struct irdma_sc_cq *cq, struct irdma_puda_cmpl_info *info) |
| { |
| struct irdma_cq_uk *cq_uk = &cq->cq_uk; |
| u64 qword0, qword2, qword3, qword6; |
| __le64 *cqe; |
| __le64 *ext_cqe = NULL; |
| u64 qword7 = 0; |
| u64 comp_ctx; |
| bool valid_bit; |
| bool ext_valid = 0; |
| u32 major_err, minor_err; |
| u32 peek_head; |
| bool error; |
| u8 polarity; |
| |
| cqe = IRDMA_GET_CURRENT_CQ_ELEM(&cq->cq_uk); |
| get_64bit_val(cqe, 24, &qword3); |
| valid_bit = (bool)FIELD_GET(IRDMA_CQ_VALID, qword3); |
| if (valid_bit != cq_uk->polarity) |
| return IRDMA_ERR_Q_EMPTY; |
| |
| if (cq->dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) |
| ext_valid = (bool)FIELD_GET(IRDMA_CQ_EXTCQE, qword3); |
| |
| if (ext_valid) { |
| peek_head = (cq_uk->cq_ring.head + 1) % cq_uk->cq_ring.size; |
| ext_cqe = cq_uk->cq_base[peek_head].buf; |
| get_64bit_val(ext_cqe, 24, &qword7); |
| polarity = (u8)FIELD_GET(IRDMA_CQ_VALID, qword7); |
| if (!peek_head) |
| polarity ^= 1; |
| if (polarity != cq_uk->polarity) |
| return IRDMA_ERR_Q_EMPTY; |
| |
| IRDMA_RING_MOVE_HEAD_NOCHECK(cq_uk->cq_ring); |
| if (!IRDMA_RING_CURRENT_HEAD(cq_uk->cq_ring)) |
| cq_uk->polarity = !cq_uk->polarity; |
| /* update cq tail in cq shadow memory also */ |
| IRDMA_RING_MOVE_TAIL(cq_uk->cq_ring); |
| } |
| |
| print_hex_dump_debug("PUDA: PUDA CQE", DUMP_PREFIX_OFFSET, 16, 8, cqe, |
| 32, false); |
| if (ext_valid) |
| print_hex_dump_debug("PUDA: PUDA EXT-CQE", DUMP_PREFIX_OFFSET, |
| 16, 8, ext_cqe, 32, false); |
| |
| error = (bool)FIELD_GET(IRDMA_CQ_ERROR, qword3); |
| if (error) { |
| ibdev_dbg(to_ibdev(cq->dev), "PUDA: receive error\n"); |
| major_err = (u32)(FIELD_GET(IRDMA_CQ_MAJERR, qword3)); |
| minor_err = (u32)(FIELD_GET(IRDMA_CQ_MINERR, qword3)); |
| info->compl_error = major_err << 16 | minor_err; |
| return IRDMA_ERR_CQ_COMPL_ERROR; |
| } |
| |
| get_64bit_val(cqe, 0, &qword0); |
| get_64bit_val(cqe, 16, &qword2); |
| |
| info->q_type = (u8)FIELD_GET(IRDMA_CQ_SQ, qword3); |
| info->qp_id = (u32)FIELD_GET(IRDMACQ_QPID, qword2); |
| if (cq->dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) |
| info->ipv4 = (bool)FIELD_GET(IRDMACQ_IPV4, qword3); |
| |
| get_64bit_val(cqe, 8, &comp_ctx); |
| info->qp = (struct irdma_qp_uk *)(unsigned long)comp_ctx; |
| info->wqe_idx = (u32)FIELD_GET(IRDMA_CQ_WQEIDX, qword3); |
| |
| if (info->q_type == IRDMA_CQE_QTYPE_RQ) { |
| if (ext_valid) { |
| info->vlan_valid = (bool)FIELD_GET(IRDMA_CQ_UDVLANVALID, qword7); |
| if (info->vlan_valid) { |
| get_64bit_val(ext_cqe, 16, &qword6); |
| info->vlan = (u16)FIELD_GET(IRDMA_CQ_UDVLAN, qword6); |
| } |
| info->smac_valid = (bool)FIELD_GET(IRDMA_CQ_UDSMACVALID, qword7); |
| if (info->smac_valid) { |
| get_64bit_val(ext_cqe, 16, &qword6); |
| info->smac[0] = (u8)((qword6 >> 40) & 0xFF); |
| info->smac[1] = (u8)((qword6 >> 32) & 0xFF); |
| info->smac[2] = (u8)((qword6 >> 24) & 0xFF); |
| info->smac[3] = (u8)((qword6 >> 16) & 0xFF); |
| info->smac[4] = (u8)((qword6 >> 8) & 0xFF); |
| info->smac[5] = (u8)(qword6 & 0xFF); |
| } |
| } |
| |
| if (cq->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1) { |
| info->vlan_valid = (bool)FIELD_GET(IRDMA_VLAN_TAG_VALID, qword3); |
| info->l4proto = (u8)FIELD_GET(IRDMA_UDA_L4PROTO, qword2); |
| info->l3proto = (u8)FIELD_GET(IRDMA_UDA_L3PROTO, qword2); |
| } |
| |
| info->payload_len = (u32)FIELD_GET(IRDMACQ_PAYLDLEN, qword0); |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * irdma_puda_poll_cmpl - processes completion for cq |
| * @dev: iwarp device |
| * @cq: cq getting interrupt |
| * @compl_err: return any completion err |
| */ |
| enum irdma_status_code irdma_puda_poll_cmpl(struct irdma_sc_dev *dev, |
| struct irdma_sc_cq *cq, |
| u32 *compl_err) |
| { |
| struct irdma_qp_uk *qp; |
| struct irdma_cq_uk *cq_uk = &cq->cq_uk; |
| struct irdma_puda_cmpl_info info = {}; |
| enum irdma_status_code ret = 0; |
| struct irdma_puda_buf *buf; |
| struct irdma_puda_rsrc *rsrc; |
| u8 cq_type = cq->cq_type; |
| unsigned long flags; |
| |
| if (cq_type == IRDMA_CQ_TYPE_ILQ || cq_type == IRDMA_CQ_TYPE_IEQ) { |
| rsrc = (cq_type == IRDMA_CQ_TYPE_ILQ) ? cq->vsi->ilq : |
| cq->vsi->ieq; |
| } else { |
| ibdev_dbg(to_ibdev(dev), "PUDA: qp_type error\n"); |
| return IRDMA_ERR_BAD_PTR; |
| } |
| |
| ret = irdma_puda_poll_info(cq, &info); |
| *compl_err = info.compl_error; |
| if (ret == IRDMA_ERR_Q_EMPTY) |
| return ret; |
| if (ret) |
| goto done; |
| |
| qp = info.qp; |
| if (!qp || !rsrc) { |
| ret = IRDMA_ERR_BAD_PTR; |
| goto done; |
| } |
| |
| if (qp->qp_id != rsrc->qp_id) { |
| ret = IRDMA_ERR_BAD_PTR; |
| goto done; |
| } |
| |
| if (info.q_type == IRDMA_CQE_QTYPE_RQ) { |
| buf = (struct irdma_puda_buf *)(uintptr_t) |
| qp->rq_wrid_array[info.wqe_idx]; |
| |
| /* reusing so synch the buffer for CPU use */ |
| dma_sync_single_for_cpu(dev->hw->device, buf->mem.pa, |
| buf->mem.size, DMA_BIDIRECTIONAL); |
| /* Get all the tcpip information in the buf header */ |
| ret = irdma_puda_get_tcpip_info(&info, buf); |
| if (ret) { |
| rsrc->stats_rcvd_pkt_err++; |
| if (cq_type == IRDMA_CQ_TYPE_ILQ) { |
| irdma_ilq_putback_rcvbuf(&rsrc->qp, buf, |
| info.wqe_idx); |
| } else { |
| irdma_puda_ret_bufpool(rsrc, buf); |
| irdma_puda_replenish_rq(rsrc, false); |
| } |
| goto done; |
| } |
| |
| rsrc->stats_pkt_rcvd++; |
| rsrc->compl_rxwqe_idx = info.wqe_idx; |
| ibdev_dbg(to_ibdev(dev), "PUDA: RQ completion\n"); |
| rsrc->receive(rsrc->vsi, buf); |
| if (cq_type == IRDMA_CQ_TYPE_ILQ) |
| irdma_ilq_putback_rcvbuf(&rsrc->qp, buf, info.wqe_idx); |
| else |
| irdma_puda_replenish_rq(rsrc, false); |
| |
| } else { |
| ibdev_dbg(to_ibdev(dev), "PUDA: SQ completion\n"); |
| buf = (struct irdma_puda_buf *)(uintptr_t) |
| qp->sq_wrtrk_array[info.wqe_idx].wrid; |
| |
| /* reusing so synch the buffer for CPU use */ |
| dma_sync_single_for_cpu(dev->hw->device, buf->mem.pa, |
| buf->mem.size, DMA_BIDIRECTIONAL); |
| IRDMA_RING_SET_TAIL(qp->sq_ring, info.wqe_idx); |
| rsrc->xmit_complete(rsrc->vsi, buf); |
| spin_lock_irqsave(&rsrc->bufpool_lock, flags); |
| rsrc->tx_wqe_avail_cnt++; |
| spin_unlock_irqrestore(&rsrc->bufpool_lock, flags); |
| if (!list_empty(&rsrc->txpend)) |
| irdma_puda_send_buf(rsrc, NULL); |
| } |
| |
| done: |
| IRDMA_RING_MOVE_HEAD_NOCHECK(cq_uk->cq_ring); |
| if (!IRDMA_RING_CURRENT_HEAD(cq_uk->cq_ring)) |
| cq_uk->polarity = !cq_uk->polarity; |
| /* update cq tail in cq shadow memory also */ |
| IRDMA_RING_MOVE_TAIL(cq_uk->cq_ring); |
| set_64bit_val(cq_uk->shadow_area, 0, |
| IRDMA_RING_CURRENT_HEAD(cq_uk->cq_ring)); |
| |
| return ret; |
| } |
| |
| /** |
| * irdma_puda_send - complete send wqe for transmit |
| * @qp: puda qp for send |
| * @info: buffer information for transmit |
| */ |
| enum irdma_status_code irdma_puda_send(struct irdma_sc_qp *qp, |
| struct irdma_puda_send_info *info) |
| { |
| __le64 *wqe; |
| u32 iplen, l4len; |
| u64 hdr[2]; |
| u32 wqe_idx; |
| u8 iipt; |
| |
| /* number of 32 bits DWORDS in header */ |
| l4len = info->tcplen >> 2; |
| if (info->ipv4) { |
| iipt = 3; |
| iplen = 5; |
| } else { |
| iipt = 1; |
| iplen = 10; |
| } |
| |
| wqe = irdma_puda_get_next_send_wqe(&qp->qp_uk, &wqe_idx); |
| if (!wqe) |
| return IRDMA_ERR_QP_TOOMANY_WRS_POSTED; |
| |
| qp->qp_uk.sq_wrtrk_array[wqe_idx].wrid = (uintptr_t)info->scratch; |
| /* Third line of WQE descriptor */ |
| /* maclen is in words */ |
| |
| if (qp->dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) { |
| hdr[0] = 0; /* Dest_QPN and Dest_QKey only for UD */ |
| hdr[1] = FIELD_PREP(IRDMA_UDA_QPSQ_OPCODE, IRDMA_OP_TYPE_SEND) | |
| FIELD_PREP(IRDMA_UDA_QPSQ_L4LEN, l4len) | |
| FIELD_PREP(IRDMAQPSQ_AHID, info->ah_id) | |
| FIELD_PREP(IRDMA_UDA_QPSQ_SIGCOMPL, 1) | |
| FIELD_PREP(IRDMA_UDA_QPSQ_VALID, |
| qp->qp_uk.swqe_polarity); |
| |
| /* Forth line of WQE descriptor */ |
| |
| set_64bit_val(wqe, 0, info->paddr); |
| set_64bit_val(wqe, 8, |
| FIELD_PREP(IRDMAQPSQ_FRAG_LEN, info->len) | |
| FIELD_PREP(IRDMA_UDA_QPSQ_VALID, qp->qp_uk.swqe_polarity)); |
| } else { |
| hdr[0] = FIELD_PREP(IRDMA_UDA_QPSQ_MACLEN, info->maclen >> 1) | |
| FIELD_PREP(IRDMA_UDA_QPSQ_IPLEN, iplen) | |
| FIELD_PREP(IRDMA_UDA_QPSQ_L4T, 1) | |
| FIELD_PREP(IRDMA_UDA_QPSQ_IIPT, iipt) | |
| FIELD_PREP(IRDMA_GEN1_UDA_QPSQ_L4LEN, l4len); |
| |
| hdr[1] = FIELD_PREP(IRDMA_UDA_QPSQ_OPCODE, IRDMA_OP_TYPE_SEND) | |
| FIELD_PREP(IRDMA_UDA_QPSQ_SIGCOMPL, 1) | |
| FIELD_PREP(IRDMA_UDA_QPSQ_DOLOOPBACK, info->do_lpb) | |
| FIELD_PREP(IRDMA_UDA_QPSQ_VALID, qp->qp_uk.swqe_polarity); |
| |
| /* Forth line of WQE descriptor */ |
| |
| set_64bit_val(wqe, 0, info->paddr); |
| set_64bit_val(wqe, 8, |
| FIELD_PREP(IRDMAQPSQ_GEN1_FRAG_LEN, info->len)); |
| } |
| |
| set_64bit_val(wqe, 16, hdr[0]); |
| dma_wmb(); /* make sure WQE is written before valid bit is set */ |
| |
| set_64bit_val(wqe, 24, hdr[1]); |
| |
| print_hex_dump_debug("PUDA: PUDA SEND WQE", DUMP_PREFIX_OFFSET, 16, 8, |
| wqe, 32, false); |
| irdma_uk_qp_post_wr(&qp->qp_uk); |
| return 0; |
| } |
| |
| /** |
| * irdma_puda_send_buf - transmit puda buffer |
| * @rsrc: resource to use for buffer |
| * @buf: puda buffer to transmit |
| */ |
| void irdma_puda_send_buf(struct irdma_puda_rsrc *rsrc, |
| struct irdma_puda_buf *buf) |
| { |
| struct irdma_puda_send_info info; |
| enum irdma_status_code ret = 0; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&rsrc->bufpool_lock, flags); |
| /* if no wqe available or not from a completion and we have |
| * pending buffers, we must queue new buffer |
| */ |
| if (!rsrc->tx_wqe_avail_cnt || (buf && !list_empty(&rsrc->txpend))) { |
| list_add_tail(&buf->list, &rsrc->txpend); |
| spin_unlock_irqrestore(&rsrc->bufpool_lock, flags); |
| rsrc->stats_sent_pkt_q++; |
| if (rsrc->type == IRDMA_PUDA_RSRC_TYPE_ILQ) |
| ibdev_dbg(to_ibdev(rsrc->dev), |
| "PUDA: adding to txpend\n"); |
| return; |
| } |
| rsrc->tx_wqe_avail_cnt--; |
| /* if we are coming from a completion and have pending buffers |
| * then Get one from pending list |
| */ |
| if (!buf) { |
| buf = irdma_puda_get_listbuf(&rsrc->txpend); |
| if (!buf) |
| goto done; |
| } |
| |
| info.scratch = buf; |
| info.paddr = buf->mem.pa; |
| info.len = buf->totallen; |
| info.tcplen = buf->tcphlen; |
| info.ipv4 = buf->ipv4; |
| |
| if (rsrc->dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) { |
| info.ah_id = buf->ah_id; |
| } else { |
| info.maclen = buf->maclen; |
| info.do_lpb = buf->do_lpb; |
| } |
| |
| /* Synch buffer for use by device */ |
| dma_sync_single_for_cpu(rsrc->dev->hw->device, buf->mem.pa, |
| buf->mem.size, DMA_BIDIRECTIONAL); |
| ret = irdma_puda_send(&rsrc->qp, &info); |
| if (ret) { |
| rsrc->tx_wqe_avail_cnt++; |
| rsrc->stats_sent_pkt_q++; |
| list_add(&buf->list, &rsrc->txpend); |
| if (rsrc->type == IRDMA_PUDA_RSRC_TYPE_ILQ) |
| ibdev_dbg(to_ibdev(rsrc->dev), |
| "PUDA: adding to puda_send\n"); |
| } else { |
| rsrc->stats_pkt_sent++; |
| } |
| done: |
| spin_unlock_irqrestore(&rsrc->bufpool_lock, flags); |
| } |
| |
| /** |
| * irdma_puda_qp_setctx - during init, set qp's context |
| * @rsrc: qp's resource |
| */ |
| static void irdma_puda_qp_setctx(struct irdma_puda_rsrc *rsrc) |
| { |
| struct irdma_sc_qp *qp = &rsrc->qp; |
| __le64 *qp_ctx = qp->hw_host_ctx; |
| |
| set_64bit_val(qp_ctx, 8, qp->sq_pa); |
| set_64bit_val(qp_ctx, 16, qp->rq_pa); |
| set_64bit_val(qp_ctx, 24, |
| FIELD_PREP(IRDMAQPC_RQSIZE, qp->hw_rq_size) | |
| FIELD_PREP(IRDMAQPC_SQSIZE, qp->hw_sq_size)); |
| set_64bit_val(qp_ctx, 48, |
| FIELD_PREP(IRDMAQPC_SNDMSS, rsrc->buf_size)); |
| set_64bit_val(qp_ctx, 56, 0); |
| if (qp->dev->hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1) |
| set_64bit_val(qp_ctx, 64, 1); |
| set_64bit_val(qp_ctx, 136, |
| FIELD_PREP(IRDMAQPC_TXCQNUM, rsrc->cq_id) | |
| FIELD_PREP(IRDMAQPC_RXCQNUM, rsrc->cq_id)); |
| set_64bit_val(qp_ctx, 144, |
| FIELD_PREP(IRDMAQPC_STAT_INDEX, rsrc->stats_idx)); |
| set_64bit_val(qp_ctx, 160, |
| FIELD_PREP(IRDMAQPC_PRIVEN, 1) | |
| FIELD_PREP(IRDMAQPC_USESTATSINSTANCE, rsrc->stats_idx_valid)); |
| set_64bit_val(qp_ctx, 168, |
| FIELD_PREP(IRDMAQPC_QPCOMPCTX, (uintptr_t)qp)); |
| set_64bit_val(qp_ctx, 176, |
| FIELD_PREP(IRDMAQPC_SQTPHVAL, qp->sq_tph_val) | |
| FIELD_PREP(IRDMAQPC_RQTPHVAL, qp->rq_tph_val) | |
| FIELD_PREP(IRDMAQPC_QSHANDLE, qp->qs_handle)); |
| |
| print_hex_dump_debug("PUDA: PUDA QP CONTEXT", DUMP_PREFIX_OFFSET, 16, |
| 8, qp_ctx, IRDMA_QP_CTX_SIZE, false); |
| } |
| |
| /** |
| * irdma_puda_qp_wqe - setup wqe for qp create |
| * @dev: Device |
| * @qp: Resource qp |
| */ |
| static enum irdma_status_code irdma_puda_qp_wqe(struct irdma_sc_dev *dev, |
| struct irdma_sc_qp *qp) |
| { |
| struct irdma_sc_cqp *cqp; |
| __le64 *wqe; |
| u64 hdr; |
| struct irdma_ccq_cqe_info compl_info; |
| enum irdma_status_code status = 0; |
| |
| cqp = dev->cqp; |
| wqe = irdma_sc_cqp_get_next_send_wqe(cqp, 0); |
| if (!wqe) |
| return IRDMA_ERR_RING_FULL; |
| |
| set_64bit_val(wqe, 16, qp->hw_host_ctx_pa); |
| set_64bit_val(wqe, 40, qp->shadow_area_pa); |
| |
| hdr = qp->qp_uk.qp_id | |
| FIELD_PREP(IRDMA_CQPSQ_OPCODE, IRDMA_CQP_OP_CREATE_QP) | |
| FIELD_PREP(IRDMA_CQPSQ_QP_QPTYPE, IRDMA_QP_TYPE_UDA) | |
| FIELD_PREP(IRDMA_CQPSQ_QP_CQNUMVALID, 1) | |
| FIELD_PREP(IRDMA_CQPSQ_QP_NEXTIWSTATE, 2) | |
| FIELD_PREP(IRDMA_CQPSQ_WQEVALID, cqp->polarity); |
| dma_wmb(); /* make sure WQE is written before valid bit is set */ |
| |
| set_64bit_val(wqe, 24, hdr); |
| |
| print_hex_dump_debug("PUDA: PUDA QP CREATE", DUMP_PREFIX_OFFSET, 16, |
| 8, wqe, 40, false); |
| irdma_sc_cqp_post_sq(cqp); |
| status = irdma_sc_poll_for_cqp_op_done(dev->cqp, IRDMA_CQP_OP_CREATE_QP, |
| &compl_info); |
| |
| return status; |
| } |
| |
| /** |
| * irdma_puda_qp_create - create qp for resource |
| * @rsrc: resource to use for buffer |
| */ |
| static enum irdma_status_code irdma_puda_qp_create(struct irdma_puda_rsrc *rsrc) |
| { |
| struct irdma_sc_qp *qp = &rsrc->qp; |
| struct irdma_qp_uk *ukqp = &qp->qp_uk; |
| enum irdma_status_code ret = 0; |
| u32 sq_size, rq_size; |
| struct irdma_dma_mem *mem; |
| |
| sq_size = rsrc->sq_size * IRDMA_QP_WQE_MIN_SIZE; |
| rq_size = rsrc->rq_size * IRDMA_QP_WQE_MIN_SIZE; |
| rsrc->qpmem.size = ALIGN((sq_size + rq_size + (IRDMA_SHADOW_AREA_SIZE << 3) + IRDMA_QP_CTX_SIZE), |
| IRDMA_HW_PAGE_SIZE); |
| rsrc->qpmem.va = dma_alloc_coherent(rsrc->dev->hw->device, |
| rsrc->qpmem.size, &rsrc->qpmem.pa, |
| GFP_KERNEL); |
| if (!rsrc->qpmem.va) |
| return IRDMA_ERR_NO_MEMORY; |
| |
| mem = &rsrc->qpmem; |
| memset(mem->va, 0, rsrc->qpmem.size); |
| qp->hw_sq_size = irdma_get_encoded_wqe_size(rsrc->sq_size, IRDMA_QUEUE_TYPE_SQ_RQ); |
| qp->hw_rq_size = irdma_get_encoded_wqe_size(rsrc->rq_size, IRDMA_QUEUE_TYPE_SQ_RQ); |
| qp->pd = &rsrc->sc_pd; |
| qp->qp_uk.qp_type = IRDMA_QP_TYPE_UDA; |
| qp->dev = rsrc->dev; |
| qp->qp_uk.back_qp = rsrc; |
| qp->sq_pa = mem->pa; |
| qp->rq_pa = qp->sq_pa + sq_size; |
| qp->vsi = rsrc->vsi; |
| ukqp->sq_base = mem->va; |
| ukqp->rq_base = &ukqp->sq_base[rsrc->sq_size]; |
| ukqp->shadow_area = ukqp->rq_base[rsrc->rq_size].elem; |
| ukqp->uk_attrs = &qp->dev->hw_attrs.uk_attrs; |
| qp->shadow_area_pa = qp->rq_pa + rq_size; |
| qp->hw_host_ctx = ukqp->shadow_area + IRDMA_SHADOW_AREA_SIZE; |
| qp->hw_host_ctx_pa = qp->shadow_area_pa + (IRDMA_SHADOW_AREA_SIZE << 3); |
| qp->push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX; |
| ukqp->qp_id = rsrc->qp_id; |
| ukqp->sq_wrtrk_array = rsrc->sq_wrtrk_array; |
| ukqp->rq_wrid_array = rsrc->rq_wrid_array; |
| ukqp->sq_size = rsrc->sq_size; |
| ukqp->rq_size = rsrc->rq_size; |
| |
| IRDMA_RING_INIT(ukqp->sq_ring, ukqp->sq_size); |
| IRDMA_RING_INIT(ukqp->initial_ring, ukqp->sq_size); |
| IRDMA_RING_INIT(ukqp->rq_ring, ukqp->rq_size); |
| ukqp->wqe_alloc_db = qp->pd->dev->wqe_alloc_db; |
| |
| ret = rsrc->dev->ws_add(qp->vsi, qp->user_pri); |
| if (ret) { |
| dma_free_coherent(rsrc->dev->hw->device, rsrc->qpmem.size, |
| rsrc->qpmem.va, rsrc->qpmem.pa); |
| rsrc->qpmem.va = NULL; |
| return ret; |
| } |
| |
| irdma_qp_add_qos(qp); |
| irdma_puda_qp_setctx(rsrc); |
| |
| if (rsrc->dev->ceq_valid) |
| ret = irdma_cqp_qp_create_cmd(rsrc->dev, qp); |
| else |
| ret = irdma_puda_qp_wqe(rsrc->dev, qp); |
| if (ret) { |
| irdma_qp_rem_qos(qp); |
| rsrc->dev->ws_remove(qp->vsi, qp->user_pri); |
| dma_free_coherent(rsrc->dev->hw->device, rsrc->qpmem.size, |
| rsrc->qpmem.va, rsrc->qpmem.pa); |
| rsrc->qpmem.va = NULL; |
| } |
| |
| return ret; |
| } |
| |
| /** |
| * irdma_puda_cq_wqe - setup wqe for CQ create |
| * @dev: Device |
| * @cq: resource for cq |
| */ |
| static enum irdma_status_code irdma_puda_cq_wqe(struct irdma_sc_dev *dev, |
| struct irdma_sc_cq *cq) |
| { |
| __le64 *wqe; |
| struct irdma_sc_cqp *cqp; |
| u64 hdr; |
| struct irdma_ccq_cqe_info compl_info; |
| enum irdma_status_code status = 0; |
| |
| cqp = dev->cqp; |
| wqe = irdma_sc_cqp_get_next_send_wqe(cqp, 0); |
| if (!wqe) |
| return IRDMA_ERR_RING_FULL; |
| |
| set_64bit_val(wqe, 0, cq->cq_uk.cq_size); |
| set_64bit_val(wqe, 8, (uintptr_t)cq >> 1); |
| set_64bit_val(wqe, 16, |
| FIELD_PREP(IRDMA_CQPSQ_CQ_SHADOW_READ_THRESHOLD, cq->shadow_read_threshold)); |
| set_64bit_val(wqe, 32, cq->cq_pa); |
| set_64bit_val(wqe, 40, cq->shadow_area_pa); |
| set_64bit_val(wqe, 56, |
| FIELD_PREP(IRDMA_CQPSQ_TPHVAL, cq->tph_val) | |
| FIELD_PREP(IRDMA_CQPSQ_VSIIDX, cq->vsi->vsi_idx)); |
| |
| hdr = cq->cq_uk.cq_id | |
| FIELD_PREP(IRDMA_CQPSQ_OPCODE, IRDMA_CQP_OP_CREATE_CQ) | |
| FIELD_PREP(IRDMA_CQPSQ_CQ_CHKOVERFLOW, 1) | |
| FIELD_PREP(IRDMA_CQPSQ_CQ_ENCEQEMASK, 1) | |
| FIELD_PREP(IRDMA_CQPSQ_CQ_CEQIDVALID, 1) | |
| FIELD_PREP(IRDMA_CQPSQ_WQEVALID, cqp->polarity); |
| dma_wmb(); /* make sure WQE is written before valid bit is set */ |
| |
| set_64bit_val(wqe, 24, hdr); |
| |
| print_hex_dump_debug("PUDA: PUDA CREATE CQ", DUMP_PREFIX_OFFSET, 16, |
| 8, wqe, IRDMA_CQP_WQE_SIZE * 8, false); |
| irdma_sc_cqp_post_sq(dev->cqp); |
| status = irdma_sc_poll_for_cqp_op_done(dev->cqp, IRDMA_CQP_OP_CREATE_CQ, |
| &compl_info); |
| if (!status) { |
| struct irdma_sc_ceq *ceq = dev->ceq[0]; |
| |
| if (ceq && ceq->reg_cq) |
| status = irdma_sc_add_cq_ctx(ceq, cq); |
| } |
| |
| return status; |
| } |
| |
| /** |
| * irdma_puda_cq_create - create cq for resource |
| * @rsrc: resource for which cq to create |
| */ |
| static enum irdma_status_code irdma_puda_cq_create(struct irdma_puda_rsrc *rsrc) |
| { |
| struct irdma_sc_dev *dev = rsrc->dev; |
| struct irdma_sc_cq *cq = &rsrc->cq; |
| enum irdma_status_code ret = 0; |
| u32 cqsize; |
| struct irdma_dma_mem *mem; |
| struct irdma_cq_init_info info = {}; |
| struct irdma_cq_uk_init_info *init_info = &info.cq_uk_init_info; |
| |
| cq->vsi = rsrc->vsi; |
| cqsize = rsrc->cq_size * (sizeof(struct irdma_cqe)); |
| rsrc->cqmem.size = ALIGN(cqsize + sizeof(struct irdma_cq_shadow_area), |
| IRDMA_CQ0_ALIGNMENT); |
| rsrc->cqmem.va = dma_alloc_coherent(dev->hw->device, rsrc->cqmem.size, |
| &rsrc->cqmem.pa, GFP_KERNEL); |
| if (!rsrc->cqmem.va) |
| return IRDMA_ERR_NO_MEMORY; |
| |
| mem = &rsrc->cqmem; |
| info.dev = dev; |
| info.type = (rsrc->type == IRDMA_PUDA_RSRC_TYPE_ILQ) ? |
| IRDMA_CQ_TYPE_ILQ : IRDMA_CQ_TYPE_IEQ; |
| info.shadow_read_threshold = rsrc->cq_size >> 2; |
| info.cq_base_pa = mem->pa; |
| info.shadow_area_pa = mem->pa + cqsize; |
| init_info->cq_base = mem->va; |
| init_info->shadow_area = (__le64 *)((u8 *)mem->va + cqsize); |
| init_info->cq_size = rsrc->cq_size; |
| init_info->cq_id = rsrc->cq_id; |
| info.ceqe_mask = true; |
| info.ceq_id_valid = true; |
| info.vsi = rsrc->vsi; |
| |
| ret = irdma_sc_cq_init(cq, &info); |
| if (ret) |
| goto error; |
| |
| if (rsrc->dev->ceq_valid) |
| ret = irdma_cqp_cq_create_cmd(dev, cq); |
| else |
| ret = irdma_puda_cq_wqe(dev, cq); |
| error: |
| if (ret) { |
| dma_free_coherent(dev->hw->device, rsrc->cqmem.size, |
| rsrc->cqmem.va, rsrc->cqmem.pa); |
| rsrc->cqmem.va = NULL; |
| } |
| |
| return ret; |
| } |
| |
| /** |
| * irdma_puda_free_qp - free qp for resource |
| * @rsrc: resource for which qp to free |
| */ |
| static void irdma_puda_free_qp(struct irdma_puda_rsrc *rsrc) |
| { |
| enum irdma_status_code ret; |
| struct irdma_ccq_cqe_info compl_info; |
| struct irdma_sc_dev *dev = rsrc->dev; |
| |
| if (rsrc->dev->ceq_valid) { |
| irdma_cqp_qp_destroy_cmd(dev, &rsrc->qp); |
| rsrc->dev->ws_remove(rsrc->qp.vsi, rsrc->qp.user_pri); |
| return; |
| } |
| |
| ret = irdma_sc_qp_destroy(&rsrc->qp, 0, false, true, true); |
| if (ret) |
| ibdev_dbg(to_ibdev(dev), |
| "PUDA: error puda qp destroy wqe, status = %d\n", |
| ret); |
| if (!ret) { |
| ret = irdma_sc_poll_for_cqp_op_done(dev->cqp, IRDMA_CQP_OP_DESTROY_QP, |
| &compl_info); |
| if (ret) |
| ibdev_dbg(to_ibdev(dev), |
| "PUDA: error puda qp destroy failed, status = %d\n", |
| ret); |
| } |
| rsrc->dev->ws_remove(rsrc->qp.vsi, rsrc->qp.user_pri); |
| } |
| |
| /** |
| * irdma_puda_free_cq - free cq for resource |
| * @rsrc: resource for which cq to free |
| */ |
| static void irdma_puda_free_cq(struct irdma_puda_rsrc *rsrc) |
| { |
| enum irdma_status_code ret; |
| struct irdma_ccq_cqe_info compl_info; |
| struct irdma_sc_dev *dev = rsrc->dev; |
| |
| if (rsrc->dev->ceq_valid) { |
| irdma_cqp_cq_destroy_cmd(dev, &rsrc->cq); |
| return; |
| } |
| |
| ret = irdma_sc_cq_destroy(&rsrc->cq, 0, true); |
| if (ret) |
| ibdev_dbg(to_ibdev(dev), "PUDA: error ieq cq destroy\n"); |
| if (!ret) { |
| ret = irdma_sc_poll_for_cqp_op_done(dev->cqp, IRDMA_CQP_OP_DESTROY_CQ, |
| &compl_info); |
| if (ret) |
| ibdev_dbg(to_ibdev(dev), |
| "PUDA: error ieq qp destroy done\n"); |
| } |
| } |
| |
| /** |
| * irdma_puda_dele_rsrc - delete all resources during close |
| * @vsi: VSI structure of device |
| * @type: type of resource to dele |
| * @reset: true if reset chip |
| */ |
| void irdma_puda_dele_rsrc(struct irdma_sc_vsi *vsi, enum puda_rsrc_type type, |
| bool reset) |
| { |
| struct irdma_sc_dev *dev = vsi->dev; |
| struct irdma_puda_rsrc *rsrc; |
| struct irdma_puda_buf *buf = NULL; |
| struct irdma_puda_buf *nextbuf = NULL; |
| struct irdma_virt_mem *vmem; |
| struct irdma_sc_ceq *ceq; |
| |
| ceq = vsi->dev->ceq[0]; |
| switch (type) { |
| case IRDMA_PUDA_RSRC_TYPE_ILQ: |
| rsrc = vsi->ilq; |
| vmem = &vsi->ilq_mem; |
| vsi->ilq = NULL; |
| if (ceq && ceq->reg_cq) |
| irdma_sc_remove_cq_ctx(ceq, &rsrc->cq); |
| break; |
| case IRDMA_PUDA_RSRC_TYPE_IEQ: |
| rsrc = vsi->ieq; |
| vmem = &vsi->ieq_mem; |
| vsi->ieq = NULL; |
| if (ceq && ceq->reg_cq) |
| irdma_sc_remove_cq_ctx(ceq, &rsrc->cq); |
| break; |
| default: |
| ibdev_dbg(to_ibdev(dev), "PUDA: error resource type = 0x%x\n", |
| type); |
| return; |
| } |
| |
| switch (rsrc->cmpl) { |
| case PUDA_HASH_CRC_COMPLETE: |
| irdma_free_hash_desc(rsrc->hash_desc); |
| fallthrough; |
| case PUDA_QP_CREATED: |
| irdma_qp_rem_qos(&rsrc->qp); |
| |
| if (!reset) |
| irdma_puda_free_qp(rsrc); |
| |
| dma_free_coherent(dev->hw->device, rsrc->qpmem.size, |
| rsrc->qpmem.va, rsrc->qpmem.pa); |
| rsrc->qpmem.va = NULL; |
| fallthrough; |
| case PUDA_CQ_CREATED: |
| if (!reset) |
| irdma_puda_free_cq(rsrc); |
| |
| dma_free_coherent(dev->hw->device, rsrc->cqmem.size, |
| rsrc->cqmem.va, rsrc->cqmem.pa); |
| rsrc->cqmem.va = NULL; |
| break; |
| default: |
| ibdev_dbg(to_ibdev(rsrc->dev), "PUDA: error no resources\n"); |
| break; |
| } |
| /* Free all allocated puda buffers for both tx and rx */ |
| buf = rsrc->alloclist; |
| while (buf) { |
| nextbuf = buf->next; |
| irdma_puda_dele_buf(dev, buf); |
| buf = nextbuf; |
| rsrc->alloc_buf_count--; |
| } |
| |
| kfree(vmem->va); |
| } |
| |
| /** |
| * irdma_puda_allocbufs - allocate buffers for resource |
| * @rsrc: resource for buffer allocation |
| * @count: number of buffers to create |
| */ |
| static enum irdma_status_code irdma_puda_allocbufs(struct irdma_puda_rsrc *rsrc, |
| u32 count) |
| { |
| u32 i; |
| struct irdma_puda_buf *buf; |
| struct irdma_puda_buf *nextbuf; |
| |
| for (i = 0; i < count; i++) { |
| buf = irdma_puda_alloc_buf(rsrc->dev, rsrc->buf_size); |
| if (!buf) { |
| rsrc->stats_buf_alloc_fail++; |
| return IRDMA_ERR_NO_MEMORY; |
| } |
| irdma_puda_ret_bufpool(rsrc, buf); |
| rsrc->alloc_buf_count++; |
| if (!rsrc->alloclist) { |
| rsrc->alloclist = buf; |
| } else { |
| nextbuf = rsrc->alloclist; |
| rsrc->alloclist = buf; |
| buf->next = nextbuf; |
| } |
| } |
| |
| rsrc->avail_buf_count = rsrc->alloc_buf_count; |
| |
| return 0; |
| } |
| |
| /** |
| * irdma_puda_create_rsrc - create resource (ilq or ieq) |
| * @vsi: sc VSI struct |
| * @info: resource information |
| */ |
| enum irdma_status_code irdma_puda_create_rsrc(struct irdma_sc_vsi *vsi, |
| struct irdma_puda_rsrc_info *info) |
| { |
| struct irdma_sc_dev *dev = vsi->dev; |
| enum irdma_status_code ret = 0; |
| struct irdma_puda_rsrc *rsrc; |
| u32 pudasize; |
| u32 sqwridsize, rqwridsize; |
| struct irdma_virt_mem *vmem; |
| |
| info->count = 1; |
| pudasize = sizeof(struct irdma_puda_rsrc); |
| sqwridsize = info->sq_size * sizeof(struct irdma_sq_uk_wr_trk_info); |
| rqwridsize = info->rq_size * 8; |
| switch (info->type) { |
| case IRDMA_PUDA_RSRC_TYPE_ILQ: |
| vmem = &vsi->ilq_mem; |
| break; |
| case IRDMA_PUDA_RSRC_TYPE_IEQ: |
| vmem = &vsi->ieq_mem; |
| break; |
| default: |
| return IRDMA_NOT_SUPPORTED; |
| } |
| vmem->size = pudasize + sqwridsize + rqwridsize; |
| vmem->va = kzalloc(vmem->size, GFP_KERNEL); |
| if (!vmem->va) |
| return IRDMA_ERR_NO_MEMORY; |
| |
| rsrc = vmem->va; |
| spin_lock_init(&rsrc->bufpool_lock); |
| switch (info->type) { |
| case IRDMA_PUDA_RSRC_TYPE_ILQ: |
| vsi->ilq = vmem->va; |
| vsi->ilq_count = info->count; |
| rsrc->receive = info->receive; |
| rsrc->xmit_complete = info->xmit_complete; |
| break; |
| case IRDMA_PUDA_RSRC_TYPE_IEQ: |
| vsi->ieq_count = info->count; |
| vsi->ieq = vmem->va; |
| rsrc->receive = irdma_ieq_receive; |
| rsrc->xmit_complete = irdma_ieq_tx_compl; |
| break; |
| default: |
| return IRDMA_NOT_SUPPORTED; |
| } |
| |
| rsrc->type = info->type; |
| rsrc->sq_wrtrk_array = (struct irdma_sq_uk_wr_trk_info *) |
| ((u8 *)vmem->va + pudasize); |
| rsrc->rq_wrid_array = (u64 *)((u8 *)vmem->va + pudasize + sqwridsize); |
| /* Initialize all ieq lists */ |
| INIT_LIST_HEAD(&rsrc->bufpool); |
| INIT_LIST_HEAD(&rsrc->txpend); |
| |
| rsrc->tx_wqe_avail_cnt = info->sq_size - 1; |
| irdma_sc_pd_init(dev, &rsrc->sc_pd, info->pd_id, info->abi_ver); |
| rsrc->qp_id = info->qp_id; |
| rsrc->cq_id = info->cq_id; |
| rsrc->sq_size = info->sq_size; |
| rsrc->rq_size = info->rq_size; |
| rsrc->cq_size = info->rq_size + info->sq_size; |
| if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) { |
| if (rsrc->type == IRDMA_PUDA_RSRC_TYPE_ILQ) |
| rsrc->cq_size += info->rq_size; |
| } |
| rsrc->buf_size = info->buf_size; |
| rsrc->dev = dev; |
| rsrc->vsi = vsi; |
| rsrc->stats_idx = info->stats_idx; |
| rsrc->stats_idx_valid = info->stats_idx_valid; |
| |
| ret = irdma_puda_cq_create(rsrc); |
| if (!ret) { |
| rsrc->cmpl = PUDA_CQ_CREATED; |
| ret = irdma_puda_qp_create(rsrc); |
| } |
| if (ret) { |
| ibdev_dbg(to_ibdev(dev), |
| "PUDA: error qp_create type=%d, status=%d\n", |
| rsrc->type, ret); |
| goto error; |
| } |
| rsrc->cmpl = PUDA_QP_CREATED; |
| |
| ret = irdma_puda_allocbufs(rsrc, info->tx_buf_cnt + info->rq_size); |
| if (ret) { |
| ibdev_dbg(to_ibdev(dev), "PUDA: error alloc_buf\n"); |
| goto error; |
| } |
| |
| rsrc->rxq_invalid_cnt = info->rq_size; |
| ret = irdma_puda_replenish_rq(rsrc, true); |
| if (ret) |
| goto error; |
| |
| if (info->type == IRDMA_PUDA_RSRC_TYPE_IEQ) { |
| if (!irdma_init_hash_desc(&rsrc->hash_desc)) { |
| rsrc->check_crc = true; |
| rsrc->cmpl = PUDA_HASH_CRC_COMPLETE; |
| ret = 0; |
| } |
| } |
| |
| irdma_sc_ccq_arm(&rsrc->cq); |
| return ret; |
| |
| error: |
| irdma_puda_dele_rsrc(vsi, info->type, false); |
| |
| return ret; |
| } |
| |
| /** |
| * irdma_ilq_putback_rcvbuf - ilq buffer to put back on rq |
| * @qp: ilq's qp resource |
| * @buf: puda buffer for rcv q |
| * @wqe_idx: wqe index of completed rcvbuf |
| */ |
| static void irdma_ilq_putback_rcvbuf(struct irdma_sc_qp *qp, |
| struct irdma_puda_buf *buf, u32 wqe_idx) |
| { |
| __le64 *wqe; |
| u64 offset8, offset24; |
| |
| /* Synch buffer for use by device */ |
| dma_sync_single_for_device(qp->dev->hw->device, buf->mem.pa, |
| buf->mem.size, DMA_BIDIRECTIONAL); |
| wqe = qp->qp_uk.rq_base[wqe_idx].elem; |
| get_64bit_val(wqe, 24, &offset24); |
| if (qp->dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) { |
| get_64bit_val(wqe, 8, &offset8); |
| if (offset24) |
| offset8 &= ~FIELD_PREP(IRDMAQPSQ_VALID, 1); |
| else |
| offset8 |= FIELD_PREP(IRDMAQPSQ_VALID, 1); |
| set_64bit_val(wqe, 8, offset8); |
| dma_wmb(); /* make sure WQE is written before valid bit is set */ |
| } |
| if (offset24) |
| offset24 = 0; |
| else |
| offset24 = FIELD_PREP(IRDMAQPSQ_VALID, 1); |
| |
| set_64bit_val(wqe, 24, offset24); |
| } |
| |
| /** |
| * irdma_ieq_get_fpdu_len - get length of fpdu with or without marker |
| * @pfpdu: pointer to fpdu |
| * @datap: pointer to data in the buffer |
| * @rcv_seq: seqnum of the data buffer |
| */ |
| static u16 irdma_ieq_get_fpdu_len(struct irdma_pfpdu *pfpdu, u8 *datap, |
| u32 rcv_seq) |
| { |
| u32 marker_seq, end_seq, blk_start; |
| u8 marker_len = pfpdu->marker_len; |
| u16 total_len = 0; |
| u16 fpdu_len; |
| |
| blk_start = (pfpdu->rcv_start_seq - rcv_seq) & (IRDMA_MRK_BLK_SZ - 1); |
| if (!blk_start) { |
| total_len = marker_len; |
| marker_seq = rcv_seq + IRDMA_MRK_BLK_SZ; |
| if (marker_len && *(u32 *)datap) |
| return 0; |
| } else { |
| marker_seq = rcv_seq + blk_start; |
| } |
| |
| datap += total_len; |
| fpdu_len = ntohs(*(__be16 *)datap); |
| fpdu_len += IRDMA_IEQ_MPA_FRAMING; |
| fpdu_len = (fpdu_len + 3) & 0xfffc; |
| |
| if (fpdu_len > pfpdu->max_fpdu_data) |
| return 0; |
| |
| total_len += fpdu_len; |
| end_seq = rcv_seq + total_len; |
| while ((int)(marker_seq - end_seq) < 0) { |
| total_len += marker_len; |
| end_seq += marker_len; |
| marker_seq += IRDMA_MRK_BLK_SZ; |
| } |
| |
| return total_len; |
| } |
| |
| /** |
| * irdma_ieq_copy_to_txbuf - copydata from rcv buf to tx buf |
| * @buf: rcv buffer with partial |
| * @txbuf: tx buffer for sending back |
| * @buf_offset: rcv buffer offset to copy from |
| * @txbuf_offset: at offset in tx buf to copy |
| * @len: length of data to copy |
| */ |
| static void irdma_ieq_copy_to_txbuf(struct irdma_puda_buf *buf, |
| struct irdma_puda_buf *txbuf, |
| u16 buf_offset, u32 txbuf_offset, u32 len) |
| { |
| void *mem1 = (u8 *)buf->mem.va + buf_offset; |
| void *mem2 = (u8 *)txbuf->mem.va + txbuf_offset; |
| |
| memcpy(mem2, mem1, len); |
| } |
| |
| /** |
| * irdma_ieq_setup_tx_buf - setup tx buffer for partial handling |
| * @buf: reeive buffer with partial |
| * @txbuf: buffer to prepare |
| */ |
| static void irdma_ieq_setup_tx_buf(struct irdma_puda_buf *buf, |
| struct irdma_puda_buf *txbuf) |
| { |
| txbuf->tcphlen = buf->tcphlen; |
| txbuf->ipv4 = buf->ipv4; |
| |
| if (buf->vsi->dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) { |
| txbuf->hdrlen = txbuf->tcphlen; |
| irdma_ieq_copy_to_txbuf(buf, txbuf, IRDMA_TCP_OFFSET, 0, |
| txbuf->hdrlen); |
| } else { |
| txbuf->maclen = buf->maclen; |
| txbuf->hdrlen = buf->hdrlen; |
| irdma_ieq_copy_to_txbuf(buf, txbuf, 0, 0, buf->hdrlen); |
| } |
| } |
| |
| /** |
| * irdma_ieq_check_first_buf - check if rcv buffer's seq is in range |
| * @buf: receive exception buffer |
| * @fps: first partial sequence number |
| */ |
| static void irdma_ieq_check_first_buf(struct irdma_puda_buf *buf, u32 fps) |
| { |
| u32 offset; |
| |
| if (buf->seqnum < fps) { |
| offset = fps - buf->seqnum; |
| if (offset > buf->datalen) |
| return; |
| buf->data += offset; |
| buf->datalen -= (u16)offset; |
| buf->seqnum = fps; |
| } |
| } |
| |
| /** |
| * irdma_ieq_compl_pfpdu - write txbuf with full fpdu |
| * @ieq: ieq resource |
| * @rxlist: ieq's received buffer list |
| * @pbufl: temporary list for buffers for fpddu |
| * @txbuf: tx buffer for fpdu |
| * @fpdu_len: total length of fpdu |
| */ |
| static void irdma_ieq_compl_pfpdu(struct irdma_puda_rsrc *ieq, |
| struct list_head *rxlist, |
| struct list_head *pbufl, |
| struct irdma_puda_buf *txbuf, u16 fpdu_len) |
| { |
| struct irdma_puda_buf *buf; |
| u32 nextseqnum; |
| u16 txoffset, bufoffset; |
| |
| buf = irdma_puda_get_listbuf(pbufl); |
| if (!buf) |
| return; |
| |
| nextseqnum = buf->seqnum + fpdu_len; |
| irdma_ieq_setup_tx_buf(buf, txbuf); |
| if (buf->vsi->dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) { |
| txoffset = txbuf->hdrlen; |
| txbuf->totallen = txbuf->hdrlen + fpdu_len; |
| txbuf->data = (u8 *)txbuf->mem.va + txoffset; |
| } else { |
| txoffset = buf->hdrlen; |
| txbuf->totallen = buf->hdrlen + fpdu_len; |
| txbuf->data = (u8 *)txbuf->mem.va + buf->hdrlen; |
| } |
| bufoffset = (u16)(buf->data - (u8 *)buf->mem.va); |
| |
| do { |
| if (buf->datalen >= fpdu_len) { |
| /* copied full fpdu */ |
| irdma_ieq_copy_to_txbuf(buf, txbuf, bufoffset, txoffset, |
| fpdu_len); |
| buf->datalen -= fpdu_len; |
| buf->data += fpdu_len; |
| buf->seqnum = nextseqnum; |
| break; |
| } |
| /* copy partial fpdu */ |
| irdma_ieq_copy_to_txbuf(buf, txbuf, bufoffset, txoffset, |
| buf->datalen); |
| txoffset += buf->datalen; |
| fpdu_len -= buf->datalen; |
| irdma_puda_ret_bufpool(ieq, buf); |
| buf = irdma_puda_get_listbuf(pbufl); |
| if (!buf) |
| return; |
| |
| bufoffset = (u16)(buf->data - (u8 *)buf->mem.va); |
| } while (1); |
| |
| /* last buffer on the list*/ |
| if (buf->datalen) |
| list_add(&buf->list, rxlist); |
| else |
| irdma_puda_ret_bufpool(ieq, buf); |
| } |
| |
| /** |
| * irdma_ieq_create_pbufl - create buffer list for single fpdu |
| * @pfpdu: pointer to fpdu |
| * @rxlist: resource list for receive ieq buffes |
| * @pbufl: temp. list for buffers for fpddu |
| * @buf: first receive buffer |
| * @fpdu_len: total length of fpdu |
| */ |
| static enum irdma_status_code |
| irdma_ieq_create_pbufl(struct irdma_pfpdu *pfpdu, struct list_head *rxlist, |
| struct list_head *pbufl, struct irdma_puda_buf *buf, |
| u16 fpdu_len) |
| { |
| enum irdma_status_code status = 0; |
| struct irdma_puda_buf *nextbuf; |
| u32 nextseqnum; |
| u16 plen = fpdu_len - buf->datalen; |
| bool done = false; |
| |
| nextseqnum = buf->seqnum + buf->datalen; |
| do { |
| nextbuf = irdma_puda_get_listbuf(rxlist); |
| if (!nextbuf) { |
| status = IRDMA_ERR_list_empty; |
| break; |
| } |
| list_add_tail(&nextbuf->list, pbufl); |
| if (nextbuf->seqnum != nextseqnum) { |
| pfpdu->bad_seq_num++; |
| status = IRDMA_ERR_SEQ_NUM; |
| break; |
| } |
| if (nextbuf->datalen >= plen) { |
| done = true; |
| } else { |
| plen -= nextbuf->datalen; |
| nextseqnum = nextbuf->seqnum + nextbuf->datalen; |
| } |
| |
| } while (!done); |
| |
| return status; |
| } |
| |
| /** |
| * irdma_ieq_handle_partial - process partial fpdu buffer |
| * @ieq: ieq resource |
| * @pfpdu: partial management per user qp |
| * @buf: receive buffer |
| * @fpdu_len: fpdu len in the buffer |
| */ |
| static enum irdma_status_code |
| irdma_ieq_handle_partial(struct irdma_puda_rsrc *ieq, struct irdma_pfpdu *pfpdu, |
| struct irdma_puda_buf *buf, u16 fpdu_len) |
| { |
| enum irdma_status_code status = 0; |
| u8 *crcptr; |
| u32 mpacrc; |
| u32 seqnum = buf->seqnum; |
| struct list_head pbufl; /* partial buffer list */ |
| struct irdma_puda_buf *txbuf = NULL; |
| struct list_head *rxlist = &pfpdu->rxlist; |
| |
| ieq->partials_handled++; |
| |
| INIT_LIST_HEAD(&pbufl); |
| list_add(&buf->list, &pbufl); |
| |
| status = irdma_ieq_create_pbufl(pfpdu, rxlist, &pbufl, buf, fpdu_len); |
| if (status) |
| goto error; |
| |
| txbuf = irdma_puda_get_bufpool(ieq); |
| if (!txbuf) { |
| pfpdu->no_tx_bufs++; |
| status = IRDMA_ERR_NO_TXBUFS; |
| goto error; |
| } |
| |
| irdma_ieq_compl_pfpdu(ieq, rxlist, &pbufl, txbuf, fpdu_len); |
| irdma_ieq_update_tcpip_info(txbuf, fpdu_len, seqnum); |
| |
| crcptr = txbuf->data + fpdu_len - 4; |
| mpacrc = *(u32 *)crcptr; |
| if (ieq->check_crc) { |
| status = irdma_ieq_check_mpacrc(ieq->hash_desc, txbuf->data, |
| (fpdu_len - 4), mpacrc); |
| if (status) { |
| ibdev_dbg(to_ibdev(ieq->dev), "IEQ: error bad crc\n"); |
| goto error; |
| } |
| } |
| |
| print_hex_dump_debug("IEQ: IEQ TX BUFFER", DUMP_PREFIX_OFFSET, 16, 8, |
| txbuf->mem.va, txbuf->totallen, false); |
| if (ieq->dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) |
| txbuf->ah_id = pfpdu->ah->ah_info.ah_idx; |
| txbuf->do_lpb = true; |
| irdma_puda_send_buf(ieq, txbuf); |
| pfpdu->rcv_nxt = seqnum + fpdu_len; |
| return status; |
| |
| error: |
| while (!list_empty(&pbufl)) { |
| buf = list_last_entry(&pbufl, struct irdma_puda_buf, list); |
| list_move(&buf->list, rxlist); |
| } |
| if (txbuf) |
| irdma_puda_ret_bufpool(ieq, txbuf); |
| |
| return status; |
| } |
| |
| /** |
| * irdma_ieq_process_buf - process buffer rcvd for ieq |
| * @ieq: ieq resource |
| * @pfpdu: partial management per user qp |
| * @buf: receive buffer |
| */ |
| static enum irdma_status_code irdma_ieq_process_buf(struct irdma_puda_rsrc *ieq, |
| struct irdma_pfpdu *pfpdu, |
| struct irdma_puda_buf *buf) |
| { |
| u16 fpdu_len = 0; |
| u16 datalen = buf->datalen; |
| u8 *datap = buf->data; |
| u8 *crcptr; |
| u16 ioffset = 0; |
| u32 mpacrc; |
| u32 seqnum = buf->seqnum; |
| u16 len = 0; |
| u16 full = 0; |
| bool partial = false; |
| struct irdma_puda_buf *txbuf; |
| struct list_head *rxlist = &pfpdu->rxlist; |
| enum irdma_status_code ret = 0; |
| |
| ioffset = (u16)(buf->data - (u8 *)buf->mem.va); |
| while (datalen) { |
| fpdu_len = irdma_ieq_get_fpdu_len(pfpdu, datap, buf->seqnum); |
| if (!fpdu_len) { |
| ibdev_dbg(to_ibdev(ieq->dev), |
| "IEQ: error bad fpdu len\n"); |
| list_add(&buf->list, rxlist); |
| return IRDMA_ERR_MPA_CRC; |
| } |
| |
| if (datalen < fpdu_len) { |
| partial = true; |
| break; |
| } |
| crcptr = datap + fpdu_len - 4; |
| mpacrc = *(u32 *)crcptr; |
| if (ieq->check_crc) |
| ret = irdma_ieq_check_mpacrc(ieq->hash_desc, datap, |
| fpdu_len - 4, mpacrc); |
| if (ret) { |
| list_add(&buf->list, rxlist); |
| ibdev_dbg(to_ibdev(ieq->dev), |
| "ERR: IRDMA_ERR_MPA_CRC\n"); |
| return IRDMA_ERR_MPA_CRC; |
| } |
| full++; |
| pfpdu->fpdu_processed++; |
| ieq->fpdu_processed++; |
| datap += fpdu_len; |
| len += fpdu_len; |
| datalen -= fpdu_len; |
| } |
| if (full) { |
| /* copy full pdu's in the txbuf and send them out */ |
| txbuf = irdma_puda_get_bufpool(ieq); |
| if (!txbuf) { |
| pfpdu->no_tx_bufs++; |
| list_add(&buf->list, rxlist); |
| return IRDMA_ERR_NO_TXBUFS; |
| } |
| /* modify txbuf's buffer header */ |
| irdma_ieq_setup_tx_buf(buf, txbuf); |
| /* copy full fpdu's to new buffer */ |
| if (ieq->dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) { |
| irdma_ieq_copy_to_txbuf(buf, txbuf, ioffset, |
| txbuf->hdrlen, len); |
| txbuf->totallen = txbuf->hdrlen + len; |
| txbuf->ah_id = pfpdu->ah->ah_info.ah_idx; |
| } else { |
| irdma_ieq_copy_to_txbuf(buf, txbuf, ioffset, |
| buf->hdrlen, len); |
| txbuf->totallen = buf->hdrlen + len; |
| } |
| irdma_ieq_update_tcpip_info(txbuf, len, buf->seqnum); |
| print_hex_dump_debug("IEQ: IEQ TX BUFFER", DUMP_PREFIX_OFFSET, |
| 16, 8, txbuf->mem.va, txbuf->totallen, |
| false); |
| txbuf->do_lpb = true; |
| irdma_puda_send_buf(ieq, txbuf); |
| |
| if (!datalen) { |
| pfpdu->rcv_nxt = buf->seqnum + len; |
| irdma_puda_ret_bufpool(ieq, buf); |
| return 0; |
| } |
| buf->data = datap; |
| buf->seqnum = seqnum + len; |
| buf->datalen = datalen; |
| pfpdu->rcv_nxt = buf->seqnum; |
| } |
| if (partial) |
| return irdma_ieq_handle_partial(ieq, pfpdu, buf, fpdu_len); |
| |
| return 0; |
| } |
| |
| /** |
| * irdma_ieq_process_fpdus - process fpdu's buffers on its list |
| * @qp: qp for which partial fpdus |
| * @ieq: ieq resource |
| */ |
| void irdma_ieq_process_fpdus(struct irdma_sc_qp *qp, |
| struct irdma_puda_rsrc *ieq) |
| { |
| struct irdma_pfpdu *pfpdu = &qp->pfpdu; |
| struct list_head *rxlist = &pfpdu->rxlist; |
| struct irdma_puda_buf *buf; |
| enum irdma_status_code status; |
| |
| do { |
| if (list_empty(rxlist)) |
| break; |
| buf = irdma_puda_get_listbuf(rxlist); |
| if (!buf) { |
| ibdev_dbg(to_ibdev(ieq->dev), "IEQ: error no buf\n"); |
| break; |
| } |
| if (buf->seqnum != pfpdu->rcv_nxt) { |
| /* This could be out of order or missing packet */ |
| pfpdu->out_of_order++; |
| list_add(&buf->list, rxlist); |
| break; |
| } |
| /* keep processing buffers from the head of the list */ |
| status = irdma_ieq_process_buf(ieq, pfpdu, buf); |
| if (status == IRDMA_ERR_MPA_CRC) { |
| pfpdu->mpa_crc_err = true; |
| while (!list_empty(rxlist)) { |
| buf = irdma_puda_get_listbuf(rxlist); |
| irdma_puda_ret_bufpool(ieq, buf); |
| pfpdu->crc_err++; |
| ieq->crc_err++; |
| } |
| /* create CQP for AE */ |
| irdma_ieq_mpa_crc_ae(ieq->dev, qp); |
| } |
| } while (!status); |
| } |
| |
| /** |
| * irdma_ieq_create_ah - create an address handle for IEQ |
| * @qp: qp pointer |
| * @buf: buf received on IEQ used to create AH |
| */ |
| static enum irdma_status_code irdma_ieq_create_ah(struct irdma_sc_qp *qp, |
| struct irdma_puda_buf *buf) |
| { |
| struct irdma_ah_info ah_info = {}; |
| |
| qp->pfpdu.ah_buf = buf; |
| irdma_puda_ieq_get_ah_info(qp, &ah_info); |
| return irdma_puda_create_ah(qp->vsi->dev, &ah_info, false, |
| IRDMA_PUDA_RSRC_TYPE_IEQ, qp, |
| &qp->pfpdu.ah); |
| } |
| |
| /** |
| * irdma_ieq_handle_exception - handle qp's exception |
| * @ieq: ieq resource |
| * @qp: qp receiving excpetion |
| * @buf: receive buffer |
| */ |
| static void irdma_ieq_handle_exception(struct irdma_puda_rsrc *ieq, |
| struct irdma_sc_qp *qp, |
| struct irdma_puda_buf *buf) |
| { |
| struct irdma_pfpdu *pfpdu = &qp->pfpdu; |
| u32 *hw_host_ctx = (u32 *)qp->hw_host_ctx; |
| u32 rcv_wnd = hw_host_ctx[23]; |
| /* first partial seq # in q2 */ |
| u32 fps = *(u32 *)(qp->q2_buf + Q2_FPSN_OFFSET); |
| struct list_head *rxlist = &pfpdu->rxlist; |
| unsigned long flags = 0; |
| u8 hw_rev = qp->dev->hw_attrs.uk_attrs.hw_rev; |
| |
| print_hex_dump_debug("IEQ: IEQ RX BUFFER", DUMP_PREFIX_OFFSET, 16, 8, |
| buf->mem.va, buf->totallen, false); |
| |
| spin_lock_irqsave(&pfpdu->lock, flags); |
| pfpdu->total_ieq_bufs++; |
| if (pfpdu->mpa_crc_err) { |
| pfpdu->crc_err++; |
| goto error; |
| } |
| if (pfpdu->mode && fps != pfpdu->fps) { |
| /* clean up qp as it is new partial sequence */ |
| irdma_ieq_cleanup_qp(ieq, qp); |
| ibdev_dbg(to_ibdev(ieq->dev), "IEQ: restarting new partial\n"); |
| pfpdu->mode = false; |
| } |
| |
| if (!pfpdu->mode) { |
| print_hex_dump_debug("IEQ: Q2 BUFFER", DUMP_PREFIX_OFFSET, 16, |
| 8, (u64 *)qp->q2_buf, 128, false); |
| /* First_Partial_Sequence_Number check */ |
| pfpdu->rcv_nxt = fps; |
| pfpdu->fps = fps; |
| pfpdu->mode = true; |
| pfpdu->max_fpdu_data = (buf->ipv4) ? |
| (ieq->vsi->mtu - IRDMA_MTU_TO_MSS_IPV4) : |
| (ieq->vsi->mtu - IRDMA_MTU_TO_MSS_IPV6); |
| pfpdu->pmode_count++; |
| ieq->pmode_count++; |
| INIT_LIST_HEAD(rxlist); |
| irdma_ieq_check_first_buf(buf, fps); |
| } |
| |
| if (!(rcv_wnd >= (buf->seqnum - pfpdu->rcv_nxt))) { |
| pfpdu->bad_seq_num++; |
| ieq->bad_seq_num++; |
| goto error; |
| } |
| |
| if (!list_empty(rxlist)) { |
| if (buf->seqnum != pfpdu->nextseqnum) { |
| irdma_send_ieq_ack(qp); |
| /* throw away out-of-order, duplicates*/ |
| goto error; |
| } |
| } |
| /* Insert buf before head */ |
| list_add_tail(&buf->list, rxlist); |
| pfpdu->nextseqnum = buf->seqnum + buf->datalen; |
| pfpdu->lastrcv_buf = buf; |
| if (hw_rev >= IRDMA_GEN_2 && !pfpdu->ah) { |
| irdma_ieq_create_ah(qp, buf); |
| if (!pfpdu->ah) |
| goto error; |
| goto exit; |
| } |
| if (hw_rev == IRDMA_GEN_1) |
| irdma_ieq_process_fpdus(qp, ieq); |
| else if (pfpdu->ah && pfpdu->ah->ah_info.ah_valid) |
| irdma_ieq_process_fpdus(qp, ieq); |
| exit: |
| spin_unlock_irqrestore(&pfpdu->lock, flags); |
| |
| return; |
| |
| error: |
| irdma_puda_ret_bufpool(ieq, buf); |
| spin_unlock_irqrestore(&pfpdu->lock, flags); |
| } |
| |
| /** |
| * irdma_ieq_receive - received exception buffer |
| * @vsi: VSI of device |
| * @buf: exception buffer received |
| */ |
| static void irdma_ieq_receive(struct irdma_sc_vsi *vsi, |
| struct irdma_puda_buf *buf) |
| { |
| struct irdma_puda_rsrc *ieq = vsi->ieq; |
| struct irdma_sc_qp *qp = NULL; |
| u32 wqe_idx = ieq->compl_rxwqe_idx; |
| |
| qp = irdma_ieq_get_qp(vsi->dev, buf); |
| if (!qp) { |
| ieq->stats_bad_qp_id++; |
| irdma_puda_ret_bufpool(ieq, buf); |
| } else { |
| irdma_ieq_handle_exception(ieq, qp, buf); |
| } |
| /* |
| * ieq->rx_wqe_idx is used by irdma_puda_replenish_rq() |
| * on which wqe_idx to start replenish rq |
| */ |
| if (!ieq->rxq_invalid_cnt) |
| ieq->rx_wqe_idx = wqe_idx; |
| ieq->rxq_invalid_cnt++; |
| } |
| |
| /** |
| * irdma_ieq_tx_compl - put back after sending completed exception buffer |
| * @vsi: sc VSI struct |
| * @sqwrid: pointer to puda buffer |
| */ |
| static void irdma_ieq_tx_compl(struct irdma_sc_vsi *vsi, void *sqwrid) |
| { |
| struct irdma_puda_rsrc *ieq = vsi->ieq; |
| struct irdma_puda_buf *buf = sqwrid; |
| |
| irdma_puda_ret_bufpool(ieq, buf); |
| } |
| |
| /** |
| * irdma_ieq_cleanup_qp - qp is being destroyed |
| * @ieq: ieq resource |
| * @qp: all pending fpdu buffers |
| */ |
| void irdma_ieq_cleanup_qp(struct irdma_puda_rsrc *ieq, struct irdma_sc_qp *qp) |
| { |
| struct irdma_puda_buf *buf; |
| struct irdma_pfpdu *pfpdu = &qp->pfpdu; |
| struct list_head *rxlist = &pfpdu->rxlist; |
| |
| if (qp->pfpdu.ah) { |
| irdma_puda_free_ah(ieq->dev, qp->pfpdu.ah); |
| qp->pfpdu.ah = NULL; |
| qp->pfpdu.ah_buf = NULL; |
| } |
| |
| if (!pfpdu->mode) |
| return; |
| |
| while (!list_empty(rxlist)) { |
| buf = irdma_puda_get_listbuf(rxlist); |
| irdma_puda_ret_bufpool(ieq, buf); |
| } |
| } |