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Message-ID: <1498980572-29519-3-git-send-email-Michal.Kalderon@cavium.com>
Date: Sun, 2 Jul 2017 10:29:22 +0300
From: Michal Kalderon <Michal.Kalderon@...ium.com>
To: <michal.kalderon@...ium.com>, <ram.amrani@...ium.com>,
<yuval.mintz@...ium.com>, <ariel.elior@...ium.com>,
<davem@...emloft.net>, <netdev@...r.kernel.org>,
<linux-rdma@...r.kernel.org>, <dledford@...hat.com>
CC: Michal Kalderon <Michal.Kalderon@...ium.com>,
Yuval Mintz <Yuval.Mintz@...ium.com>,
Ariel Elior <Ariel.Elior@...ium.com>
Subject: [PATCH net-next 02/12] qed: Implement iWARP initialization, teardown and qp operations
This patch adds iWARP support for flows that have common code
between RoCE and iWARP, such as initialization, teardown and
qp setup verbs: create, destroy, modify, query.
It introduces the iWARP specific files qed_iwarp.[ch] and
iwarp_common.h
Signed-off-by: Michal Kalderon <Michal.Kalderon@...ium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@...ium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@...ium.com>
---
drivers/net/ethernet/qlogic/qed/Makefile | 2 +-
drivers/net/ethernet/qlogic/qed/qed_dev.c | 9 +-
drivers/net/ethernet/qlogic/qed/qed_hsi.h | 1 +
drivers/net/ethernet/qlogic/qed/qed_iwarp.c | 531 ++++++++++++++++++++++++++++
drivers/net/ethernet/qlogic/qed/qed_iwarp.h | 85 +++++
drivers/net/ethernet/qlogic/qed/qed_rdma.c | 133 +++++--
drivers/net/ethernet/qlogic/qed/qed_rdma.h | 3 +
drivers/net/ethernet/qlogic/qed/qed_roce.c | 20 ++
drivers/net/ethernet/qlogic/qed/qed_sp.h | 5 +-
include/linux/qed/iwarp_common.h | 53 +++
include/linux/qed/qed_rdma_if.h | 1 +
11 files changed, 803 insertions(+), 40 deletions(-)
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_iwarp.c
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_iwarp.h
create mode 100644 include/linux/qed/iwarp_common.h
diff --git a/drivers/net/ethernet/qlogic/qed/Makefile b/drivers/net/ethernet/qlogic/qed/Makefile
index 6745238..82dd470 100644
--- a/drivers/net/ethernet/qlogic/qed/Makefile
+++ b/drivers/net/ethernet/qlogic/qed/Makefile
@@ -5,6 +5,6 @@ qed-y := qed_cxt.o qed_dev.o qed_hw.o qed_init_fw_funcs.o qed_init_ops.o \
qed_selftest.o qed_dcbx.o qed_debug.o qed_ptp.o
qed-$(CONFIG_QED_SRIOV) += qed_sriov.o qed_vf.o
qed-$(CONFIG_QED_LL2) += qed_ll2.o
-qed-$(CONFIG_QED_RDMA) += qed_roce.o qed_rdma.o
+qed-$(CONFIG_QED_RDMA) += qed_roce.o qed_rdma.o qed_iwarp.o
qed-$(CONFIG_QED_ISCSI) += qed_iscsi.o qed_ooo.o
qed-$(CONFIG_QED_FCOE) += qed_fcoe.o
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 68e6182..6c8505d 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -937,8 +937,15 @@ int qed_resc_alloc(struct qed_dev *cdev)
/* EQ */
n_eqes = qed_chain_get_capacity(&p_hwfn->p_spq->chain);
if (QED_IS_RDMA_PERSONALITY(p_hwfn)) {
+ enum protocol_type rdma_proto;
+
+ if (QED_IS_ROCE_PERSONALITY(p_hwfn))
+ rdma_proto = PROTOCOLID_ROCE;
+ else
+ rdma_proto = PROTOCOLID_IWARP;
+
num_cons = qed_cxt_get_proto_cid_count(p_hwfn,
- PROTOCOLID_ROCE,
+ rdma_proto,
NULL) * 2;
n_eqes += num_cons + 2 * MAX_NUM_VFS_BB;
} else if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
diff --git a/drivers/net/ethernet/qlogic/qed/qed_hsi.h b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
index 3bf3614..31fb0bf 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_hsi.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
@@ -46,6 +46,7 @@
#include <linux/qed/fcoe_common.h>
#include <linux/qed/eth_common.h>
#include <linux/qed/iscsi_common.h>
+#include <linux/qed/iwarp_common.h>
#include <linux/qed/rdma_common.h>
#include <linux/qed/roce_common.h>
#include <linux/qed/qed_fcoe_if.h>
diff --git a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
new file mode 100644
index 0000000..a8bd5f8
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
@@ -0,0 +1,531 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015-2017 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 "qed_cxt.h"
+#include "qed_hw.h"
+#include "qed_rdma.h"
+#include "qed_reg_addr.h"
+#include "qed_sp.h"
+
+#define QED_IWARP_ORD_DEFAULT 32
+#define QED_IWARP_IRD_DEFAULT 32
+#define QED_IWARP_RCV_WND_SIZE_DEF (256 * 1024)
+#define QED_IWARP_RCV_WND_SIZE_MIN (64 * 1024)
+#define QED_IWARP_TS_EN BIT(0)
+#define QED_IWARP_PARAM_CRC_NEEDED (1)
+#define QED_IWARP_PARAM_P2P (1)
+
+static int qed_iwarp_async_event(struct qed_hwfn *p_hwfn,
+ u8 fw_event_code, u16 echo,
+ union event_ring_data *data,
+ u8 fw_return_code);
+
+/* Override devinfo with iWARP specific values */
+void qed_iwarp_init_devinfo(struct qed_hwfn *p_hwfn)
+{
+ struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev;
+
+ dev->max_inline = IWARP_REQ_MAX_INLINE_DATA_SIZE;
+ dev->max_qp = min_t(u32,
+ IWARP_MAX_QPS,
+ p_hwfn->p_rdma_info->num_qps);
+
+ dev->max_cq = dev->max_qp;
+
+ dev->max_qp_resp_rd_atomic_resc = QED_IWARP_IRD_DEFAULT;
+ dev->max_qp_req_rd_atomic_resc = QED_IWARP_ORD_DEFAULT;
+}
+
+void qed_iwarp_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
+{
+ p_hwfn->rdma_prs_search_reg = PRS_REG_SEARCH_TCP;
+ qed_wr(p_hwfn, p_ptt, p_hwfn->rdma_prs_search_reg, 1);
+ p_hwfn->b_rdma_enabled_in_prs = true;
+}
+
+static void qed_iwarp_cid_cleaned(struct qed_hwfn *p_hwfn, u32 cid)
+{
+ cid -= qed_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto);
+
+ spin_lock_bh(&p_hwfn->p_rdma_info->lock);
+ qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid);
+ spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
+}
+
+static int qed_iwarp_alloc_cid(struct qed_hwfn *p_hwfn, u32 *cid)
+{
+ int rc;
+
+ spin_lock_bh(&p_hwfn->p_rdma_info->lock);
+ rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid);
+ spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
+ if (rc) {
+ DP_NOTICE(p_hwfn, "Failed in allocating iwarp cid\n");
+ return rc;
+ }
+ *cid += qed_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto);
+
+ rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, *cid);
+ if (rc)
+ qed_iwarp_cid_cleaned(p_hwfn, *cid);
+
+ return rc;
+}
+
+int qed_iwarp_create_qp(struct qed_hwfn *p_hwfn,
+ struct qed_rdma_qp *qp,
+ struct qed_rdma_create_qp_out_params *out_params)
+{
+ struct iwarp_create_qp_ramrod_data *p_ramrod;
+ struct qed_sp_init_data init_data;
+ struct qed_spq_entry *p_ent;
+ u16 physical_queue;
+ u32 cid;
+ int rc;
+
+ qp->shared_queue = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ IWARP_SHARED_QUEUE_PAGE_SIZE,
+ &qp->shared_queue_phys_addr,
+ GFP_KERNEL);
+ if (!qp->shared_queue)
+ return -ENOMEM;
+
+ out_params->sq_pbl_virt = (u8 *)qp->shared_queue +
+ IWARP_SHARED_QUEUE_PAGE_SQ_PBL_OFFSET;
+ out_params->sq_pbl_phys = qp->shared_queue_phys_addr +
+ IWARP_SHARED_QUEUE_PAGE_SQ_PBL_OFFSET;
+ out_params->rq_pbl_virt = (u8 *)qp->shared_queue +
+ IWARP_SHARED_QUEUE_PAGE_RQ_PBL_OFFSET;
+ out_params->rq_pbl_phys = qp->shared_queue_phys_addr +
+ IWARP_SHARED_QUEUE_PAGE_RQ_PBL_OFFSET;
+
+ rc = qed_iwarp_alloc_cid(p_hwfn, &cid);
+ if (rc)
+ goto err1;
+
+ qp->icid = (u16)cid;
+
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.cid = qp->icid;
+ init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ IWARP_RAMROD_CMD_ID_CREATE_QP,
+ PROTOCOLID_IWARP, &init_data);
+ if (rc)
+ goto err2;
+
+ p_ramrod = &p_ent->ramrod.iwarp_create_qp;
+
+ SET_FIELD(p_ramrod->flags,
+ IWARP_CREATE_QP_RAMROD_DATA_FMR_AND_RESERVED_EN,
+ qp->fmr_and_reserved_lkey);
+
+ SET_FIELD(p_ramrod->flags,
+ IWARP_CREATE_QP_RAMROD_DATA_SIGNALED_COMP, qp->signal_all);
+
+ SET_FIELD(p_ramrod->flags,
+ IWARP_CREATE_QP_RAMROD_DATA_RDMA_RD_EN,
+ qp->incoming_rdma_read_en);
+
+ SET_FIELD(p_ramrod->flags,
+ IWARP_CREATE_QP_RAMROD_DATA_RDMA_WR_EN,
+ qp->incoming_rdma_write_en);
+
+ SET_FIELD(p_ramrod->flags,
+ IWARP_CREATE_QP_RAMROD_DATA_ATOMIC_EN,
+ qp->incoming_atomic_en);
+
+ SET_FIELD(p_ramrod->flags,
+ IWARP_CREATE_QP_RAMROD_DATA_SRQ_FLG, qp->use_srq);
+
+ p_ramrod->pd = qp->pd;
+ p_ramrod->sq_num_pages = qp->sq_num_pages;
+ p_ramrod->rq_num_pages = qp->rq_num_pages;
+
+ p_ramrod->qp_handle_for_cqe.hi = cpu_to_le32(qp->qp_handle.hi);
+ p_ramrod->qp_handle_for_cqe.lo = cpu_to_le32(qp->qp_handle.lo);
+
+ p_ramrod->cq_cid_for_sq =
+ cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) | qp->sq_cq_id);
+ p_ramrod->cq_cid_for_rq =
+ cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) | qp->rq_cq_id);
+
+ p_ramrod->dpi = cpu_to_le16(qp->dpi);
+
+ physical_queue = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
+ p_ramrod->physical_q0 = cpu_to_le16(physical_queue);
+ physical_queue = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_ACK);
+ p_ramrod->physical_q1 = cpu_to_le16(physical_queue);
+
+ rc = qed_spq_post(p_hwfn, p_ent, NULL);
+ if (rc)
+ goto err2;
+
+ return rc;
+
+err2:
+ qed_iwarp_cid_cleaned(p_hwfn, cid);
+err1:
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ IWARP_SHARED_QUEUE_PAGE_SIZE,
+ qp->shared_queue, qp->shared_queue_phys_addr);
+
+ return rc;
+}
+
+static int qed_iwarp_modify_fw(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp)
+{
+ struct iwarp_modify_qp_ramrod_data *p_ramrod;
+ struct qed_sp_init_data init_data;
+ struct qed_spq_entry *p_ent;
+ int rc;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = qp->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ IWARP_RAMROD_CMD_ID_MODIFY_QP,
+ p_hwfn->p_rdma_info->proto, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.iwarp_modify_qp;
+ SET_FIELD(p_ramrod->flags, IWARP_MODIFY_QP_RAMROD_DATA_STATE_TRANS_EN,
+ 0x1);
+ if (qp->iwarp_state == QED_IWARP_QP_STATE_CLOSING)
+ p_ramrod->transition_to_state = IWARP_MODIFY_QP_STATE_CLOSING;
+ else
+ p_ramrod->transition_to_state = IWARP_MODIFY_QP_STATE_ERROR;
+
+ rc = qed_spq_post(p_hwfn, p_ent, NULL);
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x)rc=%d\n", qp->icid, rc);
+
+ return rc;
+}
+
+enum qed_iwarp_qp_state qed_roce2iwarp_state(enum qed_roce_qp_state state)
+{
+ switch (state) {
+ case QED_ROCE_QP_STATE_RESET:
+ case QED_ROCE_QP_STATE_INIT:
+ case QED_ROCE_QP_STATE_RTR:
+ return QED_IWARP_QP_STATE_IDLE;
+ case QED_ROCE_QP_STATE_RTS:
+ return QED_IWARP_QP_STATE_RTS;
+ case QED_ROCE_QP_STATE_SQD:
+ return QED_IWARP_QP_STATE_CLOSING;
+ case QED_ROCE_QP_STATE_ERR:
+ return QED_IWARP_QP_STATE_ERROR;
+ case QED_ROCE_QP_STATE_SQE:
+ return QED_IWARP_QP_STATE_TERMINATE;
+ default:
+ return QED_IWARP_QP_STATE_ERROR;
+ }
+}
+
+static enum qed_roce_qp_state
+qed_iwarp2roce_state(enum qed_iwarp_qp_state state)
+{
+ switch (state) {
+ case QED_IWARP_QP_STATE_IDLE:
+ return QED_ROCE_QP_STATE_INIT;
+ case QED_IWARP_QP_STATE_RTS:
+ return QED_ROCE_QP_STATE_RTS;
+ case QED_IWARP_QP_STATE_TERMINATE:
+ return QED_ROCE_QP_STATE_SQE;
+ case QED_IWARP_QP_STATE_CLOSING:
+ return QED_ROCE_QP_STATE_SQD;
+ case QED_IWARP_QP_STATE_ERROR:
+ return QED_ROCE_QP_STATE_ERR;
+ default:
+ return QED_ROCE_QP_STATE_ERR;
+ }
+}
+
+const char *iwarp_state_names[] = {
+ "IDLE",
+ "RTS",
+ "TERMINATE",
+ "CLOSING",
+ "ERROR",
+};
+
+int
+qed_iwarp_modify_qp(struct qed_hwfn *p_hwfn,
+ struct qed_rdma_qp *qp,
+ enum qed_iwarp_qp_state new_state, bool internal)
+{
+ enum qed_iwarp_qp_state prev_iw_state;
+ bool modify_fw = false;
+ int rc = 0;
+
+ /* modify QP can be called from upper-layer or as a result of async
+ * RST/FIN... therefore need to protect
+ */
+ spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.qp_lock);
+ prev_iw_state = qp->iwarp_state;
+
+ if (prev_iw_state == new_state) {
+ spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.qp_lock);
+ return 0;
+ }
+
+ switch (prev_iw_state) {
+ case QED_IWARP_QP_STATE_IDLE:
+ switch (new_state) {
+ case QED_IWARP_QP_STATE_RTS:
+ qp->iwarp_state = QED_IWARP_QP_STATE_RTS;
+ break;
+ case QED_IWARP_QP_STATE_ERROR:
+ qp->iwarp_state = QED_IWARP_QP_STATE_ERROR;
+ if (!internal)
+ modify_fw = true;
+ break;
+ default:
+ break;
+ }
+ break;
+ case QED_IWARP_QP_STATE_RTS:
+ switch (new_state) {
+ case QED_IWARP_QP_STATE_CLOSING:
+ if (!internal)
+ modify_fw = true;
+
+ qp->iwarp_state = QED_IWARP_QP_STATE_CLOSING;
+ break;
+ case QED_IWARP_QP_STATE_ERROR:
+ if (!internal)
+ modify_fw = true;
+ qp->iwarp_state = QED_IWARP_QP_STATE_ERROR;
+ break;
+ default:
+ break;
+ }
+ break;
+ case QED_IWARP_QP_STATE_ERROR:
+ switch (new_state) {
+ case QED_IWARP_QP_STATE_IDLE:
+
+ qp->iwarp_state = new_state;
+ break;
+ case QED_IWARP_QP_STATE_CLOSING:
+ /* could happen due to race... do nothing.... */
+ break;
+ default:
+ rc = -EINVAL;
+ }
+ break;
+ case QED_IWARP_QP_STATE_TERMINATE:
+ case QED_IWARP_QP_STATE_CLOSING:
+ qp->iwarp_state = new_state;
+ break;
+ default:
+ break;
+ }
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) %s --> %s%s\n",
+ qp->icid,
+ iwarp_state_names[prev_iw_state],
+ iwarp_state_names[qp->iwarp_state],
+ internal ? "internal" : "");
+
+ spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.qp_lock);
+
+ if (modify_fw)
+ rc = qed_iwarp_modify_fw(p_hwfn, qp);
+
+ return rc;
+}
+
+int qed_iwarp_fw_destroy(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp)
+{
+ struct qed_sp_init_data init_data;
+ struct qed_spq_entry *p_ent;
+ int rc;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = qp->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ IWARP_RAMROD_CMD_ID_DESTROY_QP,
+ p_hwfn->p_rdma_info->proto, &init_data);
+ if (rc)
+ return rc;
+
+ rc = qed_spq_post(p_hwfn, p_ent, NULL);
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) rc = %d\n", qp->icid, rc);
+
+ return rc;
+}
+
+int qed_iwarp_destroy_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp)
+{
+ int rc = 0;
+
+ if (qp->iwarp_state != QED_IWARP_QP_STATE_ERROR) {
+ rc = qed_iwarp_modify_qp(p_hwfn, qp,
+ QED_IWARP_QP_STATE_ERROR, false);
+ if (rc)
+ return rc;
+ }
+
+ rc = qed_iwarp_fw_destroy(p_hwfn, qp);
+
+ if (qp->shared_queue)
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ IWARP_SHARED_QUEUE_PAGE_SIZE,
+ qp->shared_queue, qp->shared_queue_phys_addr);
+
+ return rc;
+}
+
+#define QED_IWARP_MAX_CID_CLEAN_TIME 100
+#define QED_IWARP_MAX_NO_PROGRESS_CNT 5
+
+/* This function waits for all the bits of a bmap to be cleared, as long as
+ * there is progress ( i.e. the number of bits left to be cleared decreases )
+ * the function continues.
+ */
+static int
+qed_iwarp_wait_cid_map_cleared(struct qed_hwfn *p_hwfn, struct qed_bmap *bmap)
+{
+ int prev_weight = 0;
+ int wait_count = 0;
+ int weight = 0;
+
+ weight = bitmap_weight(bmap->bitmap, bmap->max_count);
+ prev_weight = weight;
+
+ while (weight) {
+ msleep(QED_IWARP_MAX_CID_CLEAN_TIME);
+
+ weight = bitmap_weight(bmap->bitmap, bmap->max_count);
+
+ if (prev_weight == weight) {
+ wait_count++;
+ } else {
+ prev_weight = weight;
+ wait_count = 0;
+ }
+
+ if (wait_count > QED_IWARP_MAX_NO_PROGRESS_CNT) {
+ DP_NOTICE(p_hwfn,
+ "%s bitmap wait timed out (%d cids pending)\n",
+ bmap->name, weight);
+ return -EBUSY;
+ }
+ }
+ return 0;
+}
+
+static int qed_iwarp_wait_for_all_cids(struct qed_hwfn *p_hwfn)
+{
+ /* Now wait for all cids to be completed */
+ return qed_iwarp_wait_cid_map_cleared(p_hwfn,
+ &p_hwfn->p_rdma_info->cid_map);
+}
+
+int qed_iwarp_alloc(struct qed_hwfn *p_hwfn)
+{
+ spin_lock_init(&p_hwfn->p_rdma_info->iwarp.iw_lock);
+
+ return 0;
+}
+
+void qed_iwarp_resc_free(struct qed_hwfn *p_hwfn)
+{
+}
+
+int qed_iwarp_setup(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
+ struct qed_rdma_start_in_params *params)
+{
+ struct qed_iwarp_info *iwarp_info;
+ u32 rcv_wnd_size;
+ int rc = 0;
+
+ iwarp_info = &p_hwfn->p_rdma_info->iwarp;
+
+ iwarp_info->tcp_flags = QED_IWARP_TS_EN;
+ rcv_wnd_size = QED_IWARP_RCV_WND_SIZE_DEF;
+
+ /* value 0 is used for ilog2(QED_IWARP_RCV_WND_SIZE_MIN) */
+ iwarp_info->rcv_wnd_scale = ilog2(rcv_wnd_size) -
+ ilog2(QED_IWARP_RCV_WND_SIZE_MIN);
+ iwarp_info->crc_needed = QED_IWARP_PARAM_CRC_NEEDED;
+ iwarp_info->mpa_rev = MPA_NEGOTIATION_TYPE_ENHANCED;
+
+ iwarp_info->peer2peer = QED_IWARP_PARAM_P2P;
+
+ spin_lock_init(&p_hwfn->p_rdma_info->iwarp.qp_lock);
+
+ qed_spq_register_async_cb(p_hwfn, PROTOCOLID_IWARP,
+ qed_iwarp_async_event);
+
+ return rc;
+}
+
+int qed_iwarp_stop(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
+{
+ int rc;
+
+ rc = qed_iwarp_wait_for_all_cids(p_hwfn);
+ if (rc)
+ return rc;
+
+ qed_spq_unregister_async_cb(p_hwfn, PROTOCOLID_IWARP);
+
+ return 0;
+}
+
+static int qed_iwarp_async_event(struct qed_hwfn *p_hwfn,
+ u8 fw_event_code, u16 echo,
+ union event_ring_data *data,
+ u8 fw_return_code)
+{
+ return 0;
+}
+
+void
+qed_iwarp_query_qp(struct qed_rdma_qp *qp,
+ struct qed_rdma_query_qp_out_params *out_params)
+{
+ out_params->state = qed_iwarp2roce_state(qp->iwarp_state);
+}
diff --git a/drivers/net/ethernet/qlogic/qed/qed_iwarp.h b/drivers/net/ethernet/qlogic/qed/qed_iwarp.h
new file mode 100644
index 0000000..05e5e45
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.h
@@ -0,0 +1,85 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015-2017 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.
+ */
+#ifndef _QED_IWARP_H
+#define _QED_IWARP_H
+
+enum qed_iwarp_qp_state {
+ QED_IWARP_QP_STATE_IDLE,
+ QED_IWARP_QP_STATE_RTS,
+ QED_IWARP_QP_STATE_TERMINATE,
+ QED_IWARP_QP_STATE_CLOSING,
+ QED_IWARP_QP_STATE_ERROR,
+};
+
+enum qed_iwarp_qp_state qed_roce2iwarp_state(enum qed_roce_qp_state state);
+
+struct qed_iwarp_info {
+ spinlock_t iw_lock; /* for iwarp resources */
+ spinlock_t qp_lock; /* for teardown races */
+ u32 rcv_wnd_scale;
+ u16 max_mtu;
+ u8 mac_addr[ETH_ALEN];
+ u8 crc_needed;
+ u8 tcp_flags;
+ u8 peer2peer;
+ enum mpa_negotiation_mode mpa_rev;
+ enum mpa_rtr_type rtr_type;
+};
+
+int qed_iwarp_alloc(struct qed_hwfn *p_hwfn);
+
+int qed_iwarp_setup(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
+ struct qed_rdma_start_in_params *params);
+
+int qed_iwarp_stop(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
+
+void qed_iwarp_resc_free(struct qed_hwfn *p_hwfn);
+
+void qed_iwarp_init_devinfo(struct qed_hwfn *p_hwfn);
+
+void qed_iwarp_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
+
+int qed_iwarp_create_qp(struct qed_hwfn *p_hwfn,
+ struct qed_rdma_qp *qp,
+ struct qed_rdma_create_qp_out_params *out_params);
+
+int qed_iwarp_modify_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp,
+ enum qed_iwarp_qp_state new_state, bool internal);
+
+int qed_iwarp_destroy_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp);
+
+int qed_iwarp_fw_destroy(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp);
+
+void qed_iwarp_query_qp(struct qed_rdma_qp *qp,
+ struct qed_rdma_query_qp_out_params *out_params);
+
+#endif
diff --git a/drivers/net/ethernet/qlogic/qed/qed_rdma.c b/drivers/net/ethernet/qlogic/qed/qed_rdma.c
index df76e21..ee6887f 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_rdma.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_rdma.c
@@ -161,7 +161,10 @@ static int qed_rdma_alloc(struct qed_hwfn *p_hwfn,
num_cons = qed_cxt_get_proto_cid_count(p_hwfn, p_rdma_info->proto,
NULL);
- p_rdma_info->num_qps = num_cons / 2;
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ p_rdma_info->num_qps = num_cons;
+ else
+ p_rdma_info->num_qps = num_cons / 2; /* 2 cids per qp */
num_tasks = qed_cxt_get_proto_tid_count(p_hwfn, PROTOCOLID_ROCE);
@@ -252,6 +255,13 @@ static int qed_rdma_alloc(struct qed_hwfn *p_hwfn,
"Failed to allocate real cid bitmap, rc = %d\n", rc);
goto free_cid_map;
}
+
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ rc = qed_iwarp_alloc(p_hwfn);
+
+ if (rc)
+ goto free_cid_map;
+
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocation successful\n");
return 0;
@@ -329,6 +339,9 @@ static void qed_rdma_resc_free(struct qed_hwfn *p_hwfn)
{
struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info;
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ qed_iwarp_resc_free(p_hwfn);
+
qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->cid_map, 1);
qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->pd_map, 1);
qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->dpi_map, 1);
@@ -470,6 +483,9 @@ static void qed_rdma_init_devinfo(struct qed_hwfn *p_hwfn,
if (pci_status_control & PCI_EXP_DEVCTL2_LTR_EN)
SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_ATOMIC_OP, 1);
+
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ qed_iwarp_init_devinfo(p_hwfn);
}
static void qed_rdma_init_port(struct qed_hwfn *p_hwfn)
@@ -490,29 +506,17 @@ static void qed_rdma_init_port(struct qed_hwfn *p_hwfn)
static int qed_rdma_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
- u32 ll2_ethertype_en;
+ int rc = 0;
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Initializing HW\n");
p_hwfn->b_rdma_enabled_in_prs = false;
- qed_wr(p_hwfn, p_ptt, PRS_REG_ROCE_DEST_QP_MAX_PF, 0);
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ qed_iwarp_init_hw(p_hwfn, p_ptt);
+ else
+ rc = qed_roce_init_hw(p_hwfn, p_ptt);
- p_hwfn->rdma_prs_search_reg = PRS_REG_SEARCH_ROCE;
-
- /* We delay writing to this reg until first cid is allocated. See
- * qed_cxt_dynamic_ilt_alloc function for more details
- */
- ll2_ethertype_en = qed_rd(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN);
- qed_wr(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN,
- (ll2_ethertype_en | 0x01));
-
- if (qed_cxt_get_proto_cid_start(p_hwfn, PROTOCOLID_ROCE) % 2) {
- DP_NOTICE(p_hwfn, "The first RoCE's cid should be even\n");
- return -EINVAL;
- }
-
- DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Initializing HW - Done\n");
- return 0;
+ return rc;
}
static int qed_rdma_start_fw(struct qed_hwfn *p_hwfn,
@@ -544,7 +548,10 @@ static int qed_rdma_start_fw(struct qed_hwfn *p_hwfn,
if (rc)
return rc;
- p_ramrod = &p_ent->ramrod.roce_init_func.rdma;
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ p_ramrod = &p_ent->ramrod.iwarp_init_func.rdma;
+ else
+ p_ramrod = &p_ent->ramrod.roce_init_func.rdma;
p_params_header = &p_ramrod->params_header;
p_params_header->cnq_start_offset = (u8)RESC_START(p_hwfn,
@@ -641,7 +648,15 @@ static int qed_rdma_setup(struct qed_hwfn *p_hwfn,
if (rc)
return rc;
- qed_roce_setup(p_hwfn);
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
+ rc = qed_iwarp_setup(p_hwfn, p_ptt, params);
+ if (rc)
+ return rc;
+ } else {
+ rc = qed_roce_setup(p_hwfn);
+ if (rc)
+ return rc;
+ }
return qed_rdma_start_fw(p_hwfn, params, p_ptt);
}
@@ -675,7 +690,16 @@ int qed_rdma_stop(void *rdma_cxt)
qed_wr(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN,
(ll2_ethertype_en & 0xFFFE));
- qed_roce_stop(p_hwfn);
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
+ rc = qed_iwarp_stop(p_hwfn, p_ptt);
+ if (rc) {
+ qed_ptt_release(p_hwfn, p_ptt);
+ return rc;
+ }
+ } else {
+ qed_roce_stop(p_hwfn);
+ }
+
qed_ptt_release(p_hwfn, p_ptt);
/* Get SPQ entry */
@@ -810,7 +834,9 @@ static int qed_fill_rdma_dev_info(struct qed_dev *cdev,
memset(info, 0, sizeof(*info));
- info->rdma_type = QED_RDMA_TYPE_ROCE;
+ info->rdma_type = QED_IS_ROCE_PERSONALITY(p_hwfn) ?
+ QED_RDMA_TYPE_ROCE : QED_RDMA_TYPE_IWARP;
+
info->user_dpm_enabled = (p_hwfn->db_bar_no_edpm == 0);
qed_fill_dev_info(cdev, &info->common);
@@ -1112,7 +1138,7 @@ static int qed_rdma_query_qp(void *rdma_cxt,
struct qed_rdma_query_qp_out_params *out_params)
{
struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
- int rc;
+ int rc = 0;
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
@@ -1138,7 +1164,10 @@ static int qed_rdma_query_qp(void *rdma_cxt,
out_params->max_dest_rd_atomic = qp->max_rd_atomic_resp;
out_params->sqd_async = qp->sqd_async;
- rc = qed_roce_query_qp(p_hwfn, qp, out_params);
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ qed_iwarp_query_qp(qp, out_params);
+ else
+ rc = qed_roce_query_qp(p_hwfn, qp, out_params);
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Query QP, rc = %d\n", rc);
return rc;
@@ -1151,7 +1180,10 @@ static int qed_rdma_destroy_qp(void *rdma_cxt, struct qed_rdma_qp *qp)
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
- rc = qed_roce_destroy_qp(p_hwfn, qp);
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn))
+ rc = qed_iwarp_destroy_qp(p_hwfn, qp);
+ else
+ rc = qed_roce_destroy_qp(p_hwfn, qp);
/* free qp params struct */
kfree(qp);
@@ -1190,20 +1222,27 @@ static int qed_rdma_destroy_qp(void *rdma_cxt, struct qed_rdma_qp *qp)
return NULL;
}
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
+ if (in_params->sq_num_pages * sizeof(struct regpair) >
+ IWARP_SHARED_QUEUE_PAGE_SQ_PBL_MAX_SIZE) {
+ DP_NOTICE(p_hwfn->cdev,
+ "Sq num pages: %d exceeds maximum\n",
+ in_params->sq_num_pages);
+ return NULL;
+ }
+ if (in_params->rq_num_pages * sizeof(struct regpair) >
+ IWARP_SHARED_QUEUE_PAGE_RQ_PBL_MAX_SIZE) {
+ DP_NOTICE(p_hwfn->cdev,
+ "Rq num pages: %d exceeds maximum\n",
+ in_params->rq_num_pages);
+ return NULL;
+ }
+ }
+
qp = kzalloc(sizeof(*qp), GFP_KERNEL);
if (!qp)
return NULL;
- rc = qed_roce_alloc_cid(p_hwfn, &qp->icid);
- qp->qpid = ((0xFF << 16) | qp->icid);
-
- DP_INFO(p_hwfn, "ROCE qpid=%x\n", qp->qpid);
-
- if (rc) {
- kfree(qp);
- return NULL;
- }
-
qp->cur_state = QED_ROCE_QP_STATE_RESET;
qp->qp_handle.hi = cpu_to_le32(in_params->qp_handle_hi);
qp->qp_handle.lo = cpu_to_le32(in_params->qp_handle_lo);
@@ -1226,6 +1265,19 @@ static int qed_rdma_destroy_qp(void *rdma_cxt, struct qed_rdma_qp *qp)
qp->e2e_flow_control_en = qp->use_srq ? false : true;
qp->stats_queue = in_params->stats_queue;
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
+ rc = qed_iwarp_create_qp(p_hwfn, qp, out_params);
+ qp->qpid = qp->icid;
+ } else {
+ rc = qed_roce_alloc_cid(p_hwfn, &qp->icid);
+ qp->qpid = ((0xFF << 16) | qp->icid);
+ }
+
+ if (rc) {
+ kfree(qp);
+ return NULL;
+ }
+
out_params->icid = qp->icid;
out_params->qp_id = qp->qpid;
@@ -1324,7 +1376,14 @@ static int qed_rdma_modify_qp(void *rdma_cxt,
qp->cur_state);
}
- rc = qed_roce_modify_qp(p_hwfn, qp, prev_state, params);
+ if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
+ enum qed_iwarp_qp_state new_state =
+ qed_roce2iwarp_state(qp->cur_state);
+
+ rc = qed_iwarp_modify_qp(p_hwfn, qp, new_state, 0);
+ } else {
+ rc = qed_roce_modify_qp(p_hwfn, qp, prev_state, params);
+ }
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Modify QP, rc = %d\n", rc);
return rc;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_rdma.h b/drivers/net/ethernet/qlogic/qed/qed_rdma.h
index d91e5c4..90e4e0f 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_rdma.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_rdma.h
@@ -42,6 +42,7 @@
#include "qed.h"
#include "qed_dev_api.h"
#include "qed_hsi.h"
+#include "qed_iwarp.h"
#include "qed_roce.h"
#define QED_RDMA_MAX_FMR (RDMA_MAX_TIDS)
@@ -97,6 +98,7 @@ struct qed_rdma_info {
u16 queue_zone_base;
u16 max_queue_zones;
enum protocol_type proto;
+ struct qed_iwarp_info iwarp;
};
struct qed_rdma_qp {
@@ -105,6 +107,7 @@ struct qed_rdma_qp {
u32 qpid;
u16 icid;
enum qed_roce_qp_state cur_state;
+ enum qed_iwarp_qp_state iwarp_state;
bool use_srq;
bool signal_all;
bool fmr_and_reserved_lkey;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_roce.c b/drivers/net/ethernet/qlogic/qed/qed_roce.c
index e53adc3..fb7c2d1 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_roce.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_roce.c
@@ -1149,3 +1149,23 @@ int qed_roce_setup(struct qed_hwfn *p_hwfn)
qed_roce_async_event);
}
+int qed_roce_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
+{
+ u32 ll2_ethertype_en;
+
+ qed_wr(p_hwfn, p_ptt, PRS_REG_ROCE_DEST_QP_MAX_PF, 0);
+
+ p_hwfn->rdma_prs_search_reg = PRS_REG_SEARCH_ROCE;
+
+ ll2_ethertype_en = qed_rd(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN);
+ qed_wr(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN,
+ (ll2_ethertype_en | 0x01));
+
+ if (qed_cxt_get_proto_cid_start(p_hwfn, PROTOCOLID_ROCE) % 2) {
+ DP_NOTICE(p_hwfn, "The first RoCE's cid should be even\n");
+ return -EINVAL;
+ }
+
+ DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Initializing HW - Done\n");
+ return 0;
+}
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sp.h b/drivers/net/ethernet/qlogic/qed/qed_sp.h
index 56c95fb..c3752c5 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sp.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_sp.h
@@ -104,12 +104,15 @@ int qed_eth_cqe_completion(struct qed_hwfn *p_hwfn,
struct roce_query_qp_req_ramrod_data roce_query_qp_req;
struct roce_destroy_qp_resp_ramrod_data roce_destroy_qp_resp;
struct roce_destroy_qp_req_ramrod_data roce_destroy_qp_req;
+ struct roce_init_func_ramrod_data roce_init_func;
struct rdma_create_cq_ramrod_data rdma_create_cq;
struct rdma_destroy_cq_ramrod_data rdma_destroy_cq;
struct rdma_srq_create_ramrod_data rdma_create_srq;
struct rdma_srq_destroy_ramrod_data rdma_destroy_srq;
struct rdma_srq_modify_ramrod_data rdma_modify_srq;
- struct roce_init_func_ramrod_data roce_init_func;
+ struct iwarp_create_qp_ramrod_data iwarp_create_qp;
+ struct iwarp_modify_qp_ramrod_data iwarp_modify_qp;
+ struct iwarp_init_func_ramrod_data iwarp_init_func;
struct fcoe_init_ramrod_params fcoe_init;
struct fcoe_conn_offload_ramrod_params fcoe_conn_ofld;
struct fcoe_conn_terminate_ramrod_params fcoe_conn_terminate;
diff --git a/include/linux/qed/iwarp_common.h b/include/linux/qed/iwarp_common.h
new file mode 100644
index 0000000..b8b3e1c
--- /dev/null
+++ b/include/linux/qed/iwarp_common.h
@@ -0,0 +1,53 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015-2017 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.
+ */
+#ifndef __IWARP_COMMON__
+#define __IWARP_COMMON__
+#include <linux/qed/rdma_common.h>
+/************************/
+/* IWARP FW CONSTANTS */
+/************************/
+
+#define IWARP_ACTIVE_MODE 0
+#define IWARP_PASSIVE_MODE 1
+
+#define IWARP_SHARED_QUEUE_PAGE_SIZE (0x8000)
+#define IWARP_SHARED_QUEUE_PAGE_RQ_PBL_OFFSET (0x4000)
+#define IWARP_SHARED_QUEUE_PAGE_RQ_PBL_MAX_SIZE (0x1000)
+#define IWARP_SHARED_QUEUE_PAGE_SQ_PBL_OFFSET (0x5000)
+#define IWARP_SHARED_QUEUE_PAGE_SQ_PBL_MAX_SIZE (0x3000)
+
+#define IWARP_REQ_MAX_INLINE_DATA_SIZE (128)
+#define IWARP_REQ_MAX_SINGLE_SQ_WQE_SIZE (176)
+
+#define IWARP_MAX_QPS (64 * 1024)
+
+#endif /* __IWARP_COMMON__ */
diff --git a/include/linux/qed/qed_rdma_if.h b/include/linux/qed/qed_rdma_if.h
index ff9be01..5b4bb09 100644
--- a/include/linux/qed/qed_rdma_if.h
+++ b/include/linux/qed/qed_rdma_if.h
@@ -491,6 +491,7 @@ struct qed_roce_ll2_packet {
enum qed_rdma_type {
QED_RDMA_TYPE_ROCE,
+ QED_RDMA_TYPE_IWARP
};
struct qed_dev_rdma_info {
--
1.8.3.1
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