RDMA/qedr: Rename the qedr_cm file as a preparation for iWARP support

The main differences between iWARP and RoCE lay in the communication
 management functions. These will be placed in separate files.

Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

1 files changed, 0 insertions, 744 deletions

diff --git a/drivers/infiniband/hw/qedr/qedr_cm.c b/drivers/infiniband/hw/qedr/qedr_cm.c
deleted file mode 100644
index 4689e802b332..000000000000
--- a/drivers/infiniband/hw/qedr/qedr_cm.c
+++ /dev/null
@@ -1,744 +0,0 @@
-/* QLogic qedr NIC Driver
- * Copyright (c) 2015-2016  QLogic Corporation
- *
- * This software is available to you under a choice of one of two
- * licenses.  You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- *     Redistribution and use in source and binary forms, with or
- *     without modification, are permitted provided that the following
- *     conditions are met:
- *
- *      - Redistributions of source code must retain the above
- *        copyright notice, this list of conditions and the following
- *        disclaimer.
- *
- *      - Redistributions in binary form must reproduce the above
- *        copyright notice, this list of conditions and the following
- *        disclaimer in the documentation and /or other materials
- *        provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-#include <linux/dma-mapping.h>
-#include <linux/crc32.h>
-#include <linux/iommu.h>
-#include <net/ip.h>
-#include <net/ipv6.h>
-#include <net/udp.h>
-
-#include <rdma/ib_verbs.h>
-#include <rdma/ib_user_verbs.h>
-#include <rdma/iw_cm.h>
-#include <rdma/ib_umem.h>
-#include <rdma/ib_addr.h>
-#include <rdma/ib_cache.h>
-
-#include <linux/qed/qed_if.h>
-#include <linux/qed/qed_rdma_if.h>
-#include "qedr.h"
-#include "verbs.h"
-#include <rdma/qedr-abi.h>
-#include "qedr_cm.h"
-
-void qedr_inc_sw_gsi_cons(struct qedr_qp_hwq_info *info)
-{
-	info->gsi_cons = (info->gsi_cons + 1) % info->max_wr;
-}
-
-void qedr_store_gsi_qp_cq(struct qedr_dev *dev, struct qedr_qp *qp,
-			  struct ib_qp_init_attr *attrs)
-{
-	dev->gsi_qp_created = 1;
-	dev->gsi_sqcq = get_qedr_cq(attrs->send_cq);
-	dev->gsi_rqcq = get_qedr_cq(attrs->recv_cq);
-	dev->gsi_qp = qp;
-}
-
-void qedr_ll2_complete_tx_packet(void *cxt,
-				 u8 connection_handle,
-				 void *cookie,
-				 dma_addr_t first_frag_addr,
-				 bool b_last_fragment, bool b_last_packet)
-{
-	struct qedr_dev *dev = (struct qedr_dev *)cxt;
-	struct qed_roce_ll2_packet *pkt = cookie;
-	struct qedr_cq *cq = dev->gsi_sqcq;
-	struct qedr_qp *qp = dev->gsi_qp;
-	unsigned long flags;
-
-	DP_DEBUG(dev, QEDR_MSG_GSI,
-		 "LL2 TX CB: gsi_sqcq=%p, gsi_rqcq=%p, gsi_cons=%d, ibcq_comp=%s\n",
-		 dev->gsi_sqcq, dev->gsi_rqcq, qp->sq.gsi_cons,
-		 cq->ibcq.comp_handler ? "Yes" : "No");
-
-	dma_free_coherent(&dev->pdev->dev, pkt->header.len, pkt->header.vaddr,
-			  pkt->header.baddr);
-	kfree(pkt);
-
-	spin_lock_irqsave(&qp->q_lock, flags);
-	qedr_inc_sw_gsi_cons(&qp->sq);
-	spin_unlock_irqrestore(&qp->q_lock, flags);
-
-	if (cq->ibcq.comp_handler)
-		(*cq->ibcq.comp_handler) (&cq->ibcq, cq->ibcq.cq_context);
-}
-
-void qedr_ll2_complete_rx_packet(void *cxt,
-				 struct qed_ll2_comp_rx_data *data)
-{
-	struct qedr_dev *dev = (struct qedr_dev *)cxt;
-	struct qedr_cq *cq = dev->gsi_rqcq;
-	struct qedr_qp *qp = dev->gsi_qp;
-	unsigned long flags;
-
-	spin_lock_irqsave(&qp->q_lock, flags);
-
-	qp->rqe_wr_id[qp->rq.gsi_cons].rc = data->u.data_length_error ?
-		-EINVAL : 0;
-	qp->rqe_wr_id[qp->rq.gsi_cons].vlan_id = data->vlan;
-	/* note: length stands for data length i.e. GRH is excluded */
-	qp->rqe_wr_id[qp->rq.gsi_cons].sg_list[0].length =
-		data->length.data_length;
-	*((u32 *)&qp->rqe_wr_id[qp->rq.gsi_cons].smac[0]) =
-		ntohl(data->opaque_data_0);
-	*((u16 *)&qp->rqe_wr_id[qp->rq.gsi_cons].smac[4]) =
-		ntohs((u16)data->opaque_data_1);
-
-	qedr_inc_sw_gsi_cons(&qp->rq);
-
-	spin_unlock_irqrestore(&qp->q_lock, flags);
-
-	if (cq->ibcq.comp_handler)
-		(*cq->ibcq.comp_handler) (&cq->ibcq, cq->ibcq.cq_context);
-}
-
-void qedr_ll2_release_rx_packet(void *cxt,
-				u8 connection_handle,
-				void *cookie,
-				dma_addr_t rx_buf_addr, bool b_last_packet)
-{
-	/* Do nothing... */
-}
-
-static void qedr_destroy_gsi_cq(struct qedr_dev *dev,
-				struct ib_qp_init_attr *attrs)
-{
-	struct qed_rdma_destroy_cq_in_params iparams;
-	struct qed_rdma_destroy_cq_out_params oparams;
-	struct qedr_cq *cq;
-
-	cq = get_qedr_cq(attrs->send_cq);
-	iparams.icid = cq->icid;
-	dev->ops->rdma_destroy_cq(dev->rdma_ctx, &iparams, &oparams);
-	dev->ops->common->chain_free(dev->cdev, &cq->pbl);
-
-	cq = get_qedr_cq(attrs->recv_cq);
-	/* if a dedicated recv_cq was used, delete it too */
-	if (iparams.icid != cq->icid) {
-		iparams.icid = cq->icid;
-		dev->ops->rdma_destroy_cq(dev->rdma_ctx, &iparams, &oparams);
-		dev->ops->common->chain_free(dev->cdev, &cq->pbl);
-	}
-}
-
-static inline int qedr_check_gsi_qp_attrs(struct qedr_dev *dev,
-					  struct ib_qp_init_attr *attrs)
-{
-	if (attrs->cap.max_recv_sge > QEDR_GSI_MAX_RECV_SGE) {
-		DP_ERR(dev,
-		       " create gsi qp: failed. max_recv_sge is larger the max %d>%d\n",
-		       attrs->cap.max_recv_sge, QEDR_GSI_MAX_RECV_SGE);
-		return -EINVAL;
-	}
-
-	if (attrs->cap.max_recv_wr > QEDR_GSI_MAX_RECV_WR) {
-		DP_ERR(dev,
-		       " create gsi qp: failed. max_recv_wr is too large %d>%d\n",
-		       attrs->cap.max_recv_wr, QEDR_GSI_MAX_RECV_WR);
-		return -EINVAL;
-	}
-
-	if (attrs->cap.max_send_wr > QEDR_GSI_MAX_SEND_WR) {
-		DP_ERR(dev,
-		       " create gsi qp: failed. max_send_wr is too large %d>%d\n",
-		       attrs->cap.max_send_wr, QEDR_GSI_MAX_SEND_WR);
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int qedr_ll2_post_tx(struct qedr_dev *dev,
-			    struct qed_roce_ll2_packet *pkt)
-{
-	enum qed_ll2_roce_flavor_type roce_flavor;
-	struct qed_ll2_tx_pkt_info ll2_tx_pkt;
-	int rc;
-	int i;
-
-	memset(&ll2_tx_pkt, 0, sizeof(ll2_tx_pkt));
-
-	roce_flavor = (pkt->roce_mode == ROCE_V1) ?
-	    QED_LL2_ROCE : QED_LL2_RROCE;
-
-	if (pkt->roce_mode == ROCE_V2_IPV4)
-		ll2_tx_pkt.enable_ip_cksum = 1;
-
-	ll2_tx_pkt.num_of_bds = 1 /* hdr */  + pkt->n_seg;
-	ll2_tx_pkt.vlan = 0;
-	ll2_tx_pkt.tx_dest = pkt->tx_dest;
-	ll2_tx_pkt.qed_roce_flavor = roce_flavor;
-	ll2_tx_pkt.first_frag = pkt->header.baddr;
-	ll2_tx_pkt.first_frag_len = pkt->header.len;
-	ll2_tx_pkt.cookie = pkt;
-
-	/* tx header */
-	rc = dev->ops->ll2_prepare_tx_packet(dev->rdma_ctx,
-					     dev->gsi_ll2_handle,
-					     &ll2_tx_pkt, 1);
-	if (rc) {
-		/* TX failed while posting header - release resources */
-		dma_free_coherent(&dev->pdev->dev, pkt->header.len,
-				  pkt->header.vaddr, pkt->header.baddr);
-		kfree(pkt);
-
-		DP_ERR(dev, "roce ll2 tx: header failed (rc=%d)\n", rc);
-		return rc;
-	}
-
-	/* tx payload */
-	for (i = 0; i < pkt->n_seg; i++) {
-		rc = dev->ops->ll2_set_fragment_of_tx_packet(
-			dev->rdma_ctx,
-			dev->gsi_ll2_handle,
-			pkt->payload[i].baddr,
-			pkt->payload[i].len);
-
-		if (rc) {
-			/* if failed not much to do here, partial packet has
-			 * been posted we can't free memory, will need to wait
-			 * for completion
-			 */
-			DP_ERR(dev, "ll2 tx: payload failed (rc=%d)\n", rc);
-			return rc;
-		}
-	}
-
-	return 0;
-}
-
-int qedr_ll2_stop(struct qedr_dev *dev)
-{
-	int rc;
-
-	if (dev->gsi_ll2_handle == QED_LL2_UNUSED_HANDLE)
-		return 0;
-
-	/* remove LL2 MAC address filter */
-	rc = dev->ops->ll2_set_mac_filter(dev->cdev,
-					  dev->gsi_ll2_mac_address, NULL);
-
-	rc = dev->ops->ll2_terminate_connection(dev->rdma_ctx,
-						dev->gsi_ll2_handle);
-	if (rc)
-		DP_ERR(dev, "Failed to terminate LL2 connection (rc=%d)\n", rc);
-
-	dev->ops->ll2_release_connection(dev->rdma_ctx, dev->gsi_ll2_handle);
-
-	dev->gsi_ll2_handle = QED_LL2_UNUSED_HANDLE;
-
-	return rc;
-}
-
-int qedr_ll2_start(struct qedr_dev *dev,
-		   struct ib_qp_init_attr *attrs, struct qedr_qp *qp)
-{
-	struct qed_ll2_acquire_data data;
-	struct qed_ll2_cbs cbs;
-	int rc;
-
-	/* configure and start LL2 */
-	cbs.rx_comp_cb = qedr_ll2_complete_rx_packet;
-	cbs.tx_comp_cb = qedr_ll2_complete_tx_packet;
-	cbs.rx_release_cb = qedr_ll2_release_rx_packet;
-	cbs.tx_release_cb = qedr_ll2_complete_tx_packet;
-	cbs.cookie = dev;
-
-	memset(&data, 0, sizeof(data));
-	data.input.conn_type = QED_LL2_TYPE_ROCE;
-	data.input.mtu = dev->ndev->mtu;
-	data.input.rx_num_desc = attrs->cap.max_recv_wr;
-	data.input.rx_drop_ttl0_flg = true;
-	data.input.rx_vlan_removal_en = false;
-	data.input.tx_num_desc = attrs->cap.max_send_wr;
-	data.input.tx_tc = 0;
-	data.input.tx_dest = QED_LL2_TX_DEST_NW;
-	data.input.ai_err_packet_too_big = QED_LL2_DROP_PACKET;
-	data.input.ai_err_no_buf = QED_LL2_DROP_PACKET;
-	data.input.gsi_enable = 1;
-	data.p_connection_handle = &dev->gsi_ll2_handle;
-	data.cbs = &cbs;
-
-	rc = dev->ops->ll2_acquire_connection(dev->rdma_ctx, &data);
-	if (rc) {
-		DP_ERR(dev,
-		       "ll2 start: failed to acquire LL2 connection (rc=%d)\n",
-		       rc);
-		return rc;
-	}
-
-	rc = dev->ops->ll2_establish_connection(dev->rdma_ctx,
-						dev->gsi_ll2_handle);
-	if (rc) {
-		DP_ERR(dev,
-		       "ll2 start: failed to establish LL2 connection (rc=%d)\n",
-		       rc);
-		goto err1;
-	}
-
-	rc = dev->ops->ll2_set_mac_filter(dev->cdev, NULL, dev->ndev->dev_addr);
-	if (rc)
-		goto err2;
-
-	return 0;
-
-err2:
-	dev->ops->ll2_terminate_connection(dev->rdma_ctx, dev->gsi_ll2_handle);
-err1:
-	dev->ops->ll2_release_connection(dev->rdma_ctx, dev->gsi_ll2_handle);
-
-	return rc;
-}
-
-struct ib_qp *qedr_create_gsi_qp(struct qedr_dev *dev,
-				 struct ib_qp_init_attr *attrs,
-				 struct qedr_qp *qp)
-{
-	int rc;
-
-	rc = qedr_check_gsi_qp_attrs(dev, attrs);
-	if (rc)
-		return ERR_PTR(rc);
-
-	rc = qedr_ll2_start(dev, attrs, qp);
-	if (rc) {
-		DP_ERR(dev, "create gsi qp: failed on ll2 start. rc=%d\n", rc);
-		return ERR_PTR(rc);
-	}
-
-	/* create QP */
-	qp->ibqp.qp_num = 1;
-	qp->rq.max_wr = attrs->cap.max_recv_wr;
-	qp->sq.max_wr = attrs->cap.max_send_wr;
-
-	qp->rqe_wr_id = kcalloc(qp->rq.max_wr, sizeof(*qp->rqe_wr_id),
-				GFP_KERNEL);
-	if (!qp->rqe_wr_id)
-		goto err;
-	qp->wqe_wr_id = kcalloc(qp->sq.max_wr, sizeof(*qp->wqe_wr_id),
-				GFP_KERNEL);
-	if (!qp->wqe_wr_id)
-		goto err;
-
-	qedr_store_gsi_qp_cq(dev, qp, attrs);
-	ether_addr_copy(dev->gsi_ll2_mac_address, dev->ndev->dev_addr);
-
-	/* the GSI CQ is handled by the driver so remove it from the FW */
-	qedr_destroy_gsi_cq(dev, attrs);
-	dev->gsi_rqcq->cq_type = QEDR_CQ_TYPE_GSI;
-	dev->gsi_rqcq->cq_type = QEDR_CQ_TYPE_GSI;
-
-	DP_DEBUG(dev, QEDR_MSG_GSI, "created GSI QP %p\n", qp);
-
-	return &qp->ibqp;
-
-err:
-	kfree(qp->rqe_wr_id);
-
-	rc = qedr_ll2_stop(dev);
-	if (rc)
-		DP_ERR(dev, "create gsi qp: failed destroy on create\n");
-
-	return ERR_PTR(-ENOMEM);
-}
-
-int qedr_destroy_gsi_qp(struct qedr_dev *dev)
-{
-	return qedr_ll2_stop(dev);
-}
-
-#define QEDR_MAX_UD_HEADER_SIZE	(100)
-#define QEDR_GSI_QPN		(1)
-static inline int qedr_gsi_build_header(struct qedr_dev *dev,
-					struct qedr_qp *qp,
-					struct ib_send_wr *swr,
-					struct ib_ud_header *udh,
-					int *roce_mode)
-{
-	bool has_vlan = false, has_grh_ipv6 = true;
-	struct rdma_ah_attr *ah_attr = &get_qedr_ah(ud_wr(swr)->ah)->attr;
-	const struct ib_global_route *grh = rdma_ah_read_grh(ah_attr);
-	union ib_gid sgid;
-	int send_size = 0;
-	u16 vlan_id = 0;
-	u16 ether_type;
-	struct ib_gid_attr sgid_attr;
-	int rc;
-	int ip_ver = 0;
-
-	bool has_udp = false;
-	int i;
-
-	send_size = 0;
-	for (i = 0; i < swr->num_sge; ++i)
-		send_size += swr->sg_list[i].length;
-
-	rc = ib_get_cached_gid(qp->ibqp.device, rdma_ah_get_port_num(ah_attr),
-			       grh->sgid_index, &sgid, &sgid_attr);
-	if (rc) {
-		DP_ERR(dev,
-		       "gsi post send: failed to get cached GID (port=%d, ix=%d)\n",
-		       rdma_ah_get_port_num(ah_attr),
-		       grh->sgid_index);
-		return rc;
-	}
-
-	if (sgid_attr.ndev) {
-		vlan_id = rdma_vlan_dev_vlan_id(sgid_attr.ndev);
-		if (vlan_id < VLAN_CFI_MASK)
-			has_vlan = true;
-
-		dev_put(sgid_attr.ndev);
-	}
-
-	if (!memcmp(&sgid, &zgid, sizeof(sgid))) {
-		DP_ERR(dev, "gsi post send: GID not found GID index %d\n",
-		       grh->sgid_index);
-		return -ENOENT;
-	}
-
-	has_udp = (sgid_attr.gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP);
-	if (!has_udp) {
-		/* RoCE v1 */
-		ether_type = ETH_P_IBOE;
-		*roce_mode = ROCE_V1;
-	} else if (ipv6_addr_v4mapped((struct in6_addr *)&sgid)) {
-		/* RoCE v2 IPv4 */
-		ip_ver = 4;
-		ether_type = ETH_P_IP;
-		has_grh_ipv6 = false;
-		*roce_mode = ROCE_V2_IPV4;
-	} else {
-		/* RoCE v2 IPv6 */
-		ip_ver = 6;
-		ether_type = ETH_P_IPV6;
-		*roce_mode = ROCE_V2_IPV6;
-	}
-
-	rc = ib_ud_header_init(send_size, false, true, has_vlan,
-			       has_grh_ipv6, ip_ver, has_udp, 0, udh);
-	if (rc) {
-		DP_ERR(dev, "gsi post send: failed to init header\n");
-		return rc;
-	}
-
-	/* ENET + VLAN headers */
-	ether_addr_copy(udh->eth.dmac_h, ah_attr->roce.dmac);
-	ether_addr_copy(udh->eth.smac_h, dev->ndev->dev_addr);
-	if (has_vlan) {
-		udh->eth.type = htons(ETH_P_8021Q);
-		udh->vlan.tag = htons(vlan_id);
-		udh->vlan.type = htons(ether_type);
-	} else {
-		udh->eth.type = htons(ether_type);
-	}
-
-	/* BTH */
-	udh->bth.solicited_event = !!(swr->send_flags & IB_SEND_SOLICITED);
-	udh->bth.pkey = QEDR_ROCE_PKEY_DEFAULT;
-	udh->bth.destination_qpn = htonl(ud_wr(swr)->remote_qpn);
-	udh->bth.psn = htonl((qp->sq_psn++) & ((1 << 24) - 1));
-	udh->bth.opcode = IB_OPCODE_UD_SEND_ONLY;
-
-	/* DETH */
-	udh->deth.qkey = htonl(0x80010000);
-	udh->deth.source_qpn = htonl(QEDR_GSI_QPN);
-
-	if (has_grh_ipv6) {
-		/* GRH / IPv6 header */
-		udh->grh.traffic_class = grh->traffic_class;
-		udh->grh.flow_label = grh->flow_label;
-		udh->grh.hop_limit = grh->hop_limit;
-		udh->grh.destination_gid = grh->dgid;
-		memcpy(&udh->grh.source_gid.raw, &sgid.raw,
-		       sizeof(udh->grh.source_gid.raw));
-	} else {
-		/* IPv4 header */
-		u32 ipv4_addr;
-
-		udh->ip4.protocol = IPPROTO_UDP;
-		udh->ip4.tos = htonl(grh->flow_label);
-		udh->ip4.frag_off = htons(IP_DF);
-		udh->ip4.ttl = grh->hop_limit;
-
-		ipv4_addr = qedr_get_ipv4_from_gid(sgid.raw);
-		udh->ip4.saddr = ipv4_addr;
-		ipv4_addr = qedr_get_ipv4_from_gid(grh->dgid.raw);
-		udh->ip4.daddr = ipv4_addr;
-		/* note: checksum is calculated by the device */
-	}
-
-	/* UDP */
-	if (has_udp) {
-		udh->udp.sport = htons(QEDR_ROCE_V2_UDP_SPORT);
-		udh->udp.dport = htons(ROCE_V2_UDP_DPORT);
-		udh->udp.csum = 0;
-		/* UDP length is untouched hence is zero */
-	}
-	return 0;
-}
-
-static inline int qedr_gsi_build_packet(struct qedr_dev *dev,
-					struct qedr_qp *qp,
-					struct ib_send_wr *swr,
-					struct qed_roce_ll2_packet **p_packet)
-{
-	u8 ud_header_buffer[QEDR_MAX_UD_HEADER_SIZE];
-	struct qed_roce_ll2_packet *packet;
-	struct pci_dev *pdev = dev->pdev;
-	int roce_mode, header_size;
-	struct ib_ud_header udh;
-	int i, rc;
-
-	*p_packet = NULL;
-
-	rc = qedr_gsi_build_header(dev, qp, swr, &udh, &roce_mode);
-	if (rc)
-		return rc;
-
-	header_size = ib_ud_header_pack(&udh, &ud_header_buffer);
-
-	packet = kzalloc(sizeof(*packet), GFP_ATOMIC);
-	if (!packet)
-		return -ENOMEM;
-
-	packet->header.vaddr = dma_alloc_coherent(&pdev->dev, header_size,
-						  &packet->header.baddr,
-						  GFP_ATOMIC);
-	if (!packet->header.vaddr) {
-		kfree(packet);
-		return -ENOMEM;
-	}
-
-	if (ether_addr_equal(udh.eth.smac_h, udh.eth.dmac_h))
-		packet->tx_dest = QED_ROCE_LL2_TX_DEST_LB;
-	else
-		packet->tx_dest = QED_ROCE_LL2_TX_DEST_NW;
-
-	packet->roce_mode = roce_mode;
-	memcpy(packet->header.vaddr, ud_header_buffer, header_size);
-	packet->header.len = header_size;
-	packet->n_seg = swr->num_sge;
-	for (i = 0; i < packet->n_seg; i++) {
-		packet->payload[i].baddr = swr->sg_list[i].addr;
-		packet->payload[i].len = swr->sg_list[i].length;
-	}
-
-	*p_packet = packet;
-
-	return 0;
-}
-
-int qedr_gsi_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
-		       struct ib_send_wr **bad_wr)
-{
-	struct qed_roce_ll2_packet *pkt = NULL;
-	struct qedr_qp *qp = get_qedr_qp(ibqp);
-	struct qedr_dev *dev = qp->dev;
-	unsigned long flags;
-	int rc;
-
-	if (qp->state != QED_ROCE_QP_STATE_RTS) {
-		*bad_wr = wr;
-		DP_ERR(dev,
-		       "gsi post recv: failed to post rx buffer. state is %d and not QED_ROCE_QP_STATE_RTS\n",
-		       qp->state);
-		return -EINVAL;
-	}
-
-	if (wr->num_sge > RDMA_MAX_SGE_PER_SQ_WQE) {
-		DP_ERR(dev, "gsi post send: num_sge is too large (%d>%d)\n",
-		       wr->num_sge, RDMA_MAX_SGE_PER_SQ_WQE);
-		rc = -EINVAL;
-		goto err;
-	}
-
-	if (wr->opcode != IB_WR_SEND) {
-		DP_ERR(dev,
-		       "gsi post send: failed due to unsupported opcode %d\n",
-		       wr->opcode);
-		rc = -EINVAL;
-		goto err;
-	}
-
-	spin_lock_irqsave(&qp->q_lock, flags);
-
-	rc = qedr_gsi_build_packet(dev, qp, wr, &pkt);
-	if (rc) {
-		spin_unlock_irqrestore(&qp->q_lock, flags);
-		goto err;
-	}
-
-	rc = qedr_ll2_post_tx(dev, pkt);
-
-	if (!rc) {
-		qp->wqe_wr_id[qp->sq.prod].wr_id = wr->wr_id;
-		qedr_inc_sw_prod(&qp->sq);
-		DP_DEBUG(qp->dev, QEDR_MSG_GSI,
-			 "gsi post send: opcode=%d, in_irq=%ld, irqs_disabled=%d, wr_id=%llx\n",
-			 wr->opcode, in_irq(), irqs_disabled(), wr->wr_id);
-	} else {
-		DP_ERR(dev, "gsi post send: failed to transmit (rc=%d)\n", rc);
-		rc = -EAGAIN;
-		*bad_wr = wr;
-	}
-
-	spin_unlock_irqrestore(&qp->q_lock, flags);
-
-	if (wr->next) {
-		DP_ERR(dev,
-		       "gsi post send: failed second WR. Only one WR may be passed at a time\n");
-		*bad_wr = wr->next;
-		rc = -EINVAL;
-	}
-
-	return rc;
-
-err:
-	*bad_wr = wr;
-	return rc;
-}
-
-int qedr_gsi_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
-		       struct ib_recv_wr **bad_wr)
-{
-	struct qedr_dev *dev = get_qedr_dev(ibqp->device);
-	struct qedr_qp *qp = get_qedr_qp(ibqp);
-	unsigned long flags;
-	int rc = 0;
-
-	if ((qp->state != QED_ROCE_QP_STATE_RTR) &&
-	    (qp->state != QED_ROCE_QP_STATE_RTS)) {
-		*bad_wr = wr;
-		DP_ERR(dev,
-		       "gsi post recv: failed to post rx buffer. state is %d and not QED_ROCE_QP_STATE_RTR/S\n",
-		       qp->state);
-		return -EINVAL;
-	}
-
-	spin_lock_irqsave(&qp->q_lock, flags);
-
-	while (wr) {
-		if (wr->num_sge > QEDR_GSI_MAX_RECV_SGE) {
-			DP_ERR(dev,
-			       "gsi post recv: failed to post rx buffer. too many sges %d>%d\n",
-			       wr->num_sge, QEDR_GSI_MAX_RECV_SGE);
-			goto err;
-		}
-
-		rc = dev->ops->ll2_post_rx_buffer(dev->rdma_ctx,
-						  dev->gsi_ll2_handle,
-						  wr->sg_list[0].addr,
-						  wr->sg_list[0].length,
-						  0 /* cookie */,
-						  1 /* notify_fw */);
-		if (rc) {
-			DP_ERR(dev,
-			       "gsi post recv: failed to post rx buffer (rc=%d)\n",
-			       rc);
-			goto err;
-		}
-
-		memset(&qp->rqe_wr_id[qp->rq.prod], 0,
-		       sizeof(qp->rqe_wr_id[qp->rq.prod]));
-		qp->rqe_wr_id[qp->rq.prod].sg_list[0] = wr->sg_list[0];
-		qp->rqe_wr_id[qp->rq.prod].wr_id = wr->wr_id;
-
-		qedr_inc_sw_prod(&qp->rq);
-
-		wr = wr->next;
-	}
-
-	spin_unlock_irqrestore(&qp->q_lock, flags);
-
-	return rc;
-err:
-	spin_unlock_irqrestore(&qp->q_lock, flags);
-	*bad_wr = wr;
-	return -ENOMEM;
-}
-
-int qedr_gsi_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
-{
-	struct qedr_dev *dev = get_qedr_dev(ibcq->device);
-	struct qedr_cq *cq = get_qedr_cq(ibcq);
-	struct qedr_qp *qp = dev->gsi_qp;
-	unsigned long flags;
-	int i = 0;
-
-	spin_lock_irqsave(&cq->cq_lock, flags);
-
-	while (i < num_entries && qp->rq.cons != qp->rq.gsi_cons) {
-		memset(&wc[i], 0, sizeof(*wc));
-
-		wc[i].qp = &qp->ibqp;
-		wc[i].wr_id = qp->rqe_wr_id[qp->rq.cons].wr_id;
-		wc[i].opcode = IB_WC_RECV;
-		wc[i].pkey_index = 0;
-		wc[i].status = (qp->rqe_wr_id[qp->rq.cons].rc) ?
-		    IB_WC_GENERAL_ERR : IB_WC_SUCCESS;
-		/* 0 - currently only one recv sg is supported */
-		wc[i].byte_len = qp->rqe_wr_id[qp->rq.cons].sg_list[0].length;
-		wc[i].wc_flags |= IB_WC_GRH | IB_WC_IP_CSUM_OK;
-		ether_addr_copy(wc[i].smac, qp->rqe_wr_id[qp->rq.cons].smac);
-		wc[i].wc_flags |= IB_WC_WITH_SMAC;
-		if (qp->rqe_wr_id[qp->rq.cons].vlan_id) {
-			wc[i].wc_flags |= IB_WC_WITH_VLAN;
-			wc[i].vlan_id = qp->rqe_wr_id[qp->rq.cons].vlan_id;
-		}
-
-		qedr_inc_sw_cons(&qp->rq);
-		i++;
-	}
-
-	while (i < num_entries && qp->sq.cons != qp->sq.gsi_cons) {
-		memset(&wc[i], 0, sizeof(*wc));
-
-		wc[i].qp = &qp->ibqp;
-		wc[i].wr_id = qp->wqe_wr_id[qp->sq.cons].wr_id;
-		wc[i].opcode = IB_WC_SEND;
-		wc[i].status = IB_WC_SUCCESS;
-
-		qedr_inc_sw_cons(&qp->sq);
-		i++;
-	}
-
-	spin_unlock_irqrestore(&cq->cq_lock, flags);
-
-	DP_DEBUG(dev, QEDR_MSG_GSI,
-		 "gsi poll_cq: requested entries=%d, actual=%d, qp->rq.cons=%d, qp->rq.gsi_cons=%x, qp->sq.cons=%d, qp->sq.gsi_cons=%d, qp_num=%d\n",
-		 num_entries, i, qp->rq.cons, qp->rq.gsi_cons, qp->sq.cons,
-		 qp->sq.gsi_cons, qp->ibqp.qp_num);
-
-	return i;
-}