[PATCH v3 10/14] RDMA/ionic: Register device ops for control path

Abhijit Gangurde
2025-06-24T12:14:21Z

Implement device supported verb APIs for control path.

Co-developed-by: Andrew Boyer <andrew.boyer@amd.com>
Signed-off-by: Andrew Boyer <andrew.boyer@amd.com>
Co-developed-by: Allen Hubbe <allen.hubbe@amd.com>
Signed-off-by: Allen Hubbe <allen.hubbe@amd.com>
Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
---
v2->v3
- Registered main ib ops at once
- Removed uverbs_cmd_mask
- Removed uverbs_cmd_mask
- Used rdma_user_mmap_* APIs for mappings
- Removed rw locks around xarrays
- Fixed sparse checks

drivers/infiniband/hw/ionic/ionic_admin.c | 101 +
.../infiniband/hw/ionic/ionic_controlpath.c | 2530 +++++++++++++++++
drivers/infiniband/hw/ionic/ionic_fw.h | 717 +++++
drivers/infiniband/hw/ionic/ionic_ibdev.c | 44 +
drivers/infiniband/hw/ionic/ionic_ibdev.h | 249 +-
drivers/infiniband/hw/ionic/ionic_pgtbl.c | 19 +
include/uapi/rdma/ionic-abi.h | 115 +
7 files changed, 3767 insertions(+), 8 deletions(-)
create mode 100644 include/uapi/rdma/ionic-abi.h

diff --git a/drivers/infiniband/hw/ionic/ionic_admin.c b/drivers/infiniband/hw/ionic/ionic_admin.c
index bf2ab58e3f13..984ccdaac9fb 100644
--- a/drivers/infiniband/hw/ionic/ionic_admin.c
+++ b/drivers/infiniband/hw/ionic/ionic_admin.c
@@ -671,6 +671,42 @@ static struct ionic_aq *ionic_create_rdma_adminq(struct ionic_ibdev *dev,
return ERR_PTR(rc);
}

+static void ionic_flush_qs(struct ionic_ibdev *dev)
+{
+ struct ionic_qp *qp, *qp_tmp;
+ struct ionic_cq *cq, *cq_tmp;
+ LIST_HEAD(flush_list);
+ unsigned long index;
+
+ /* Flush qp send and recv */
+ rcu_read_lock();
+ xa_for_each(&dev->qp_tbl, index, qp) {
+ kref_get(&qp->qp_kref);
+ list_add_tail(&qp->ibkill_flush_ent, &flush_list);
+ }
+ rcu_read_unlock();
+
+ list_for_each_entry_safe(qp, qp_tmp, &flush_list, ibkill_flush_ent) {
+ ionic_flush_qp(dev, qp);
+ kref_put(&qp->qp_kref, ionic_qp_complete);
+ list_del(&qp->ibkill_flush_ent);
+ }
+
+ /* Notify completions */
+ rcu_read_lock();
+ xa_for_each(&dev->cq_tbl, index, cq) {
+ kref_get(&cq->cq_kref);
+ list_add_tail(&cq->ibkill_flush_ent, &flush_list);
+ }
+ rcu_read_unlock();
+
+ list_for_each_entry_safe(cq, cq_tmp, &flush_list, ibkill_flush_ent) {
+ ionic_notify_flush_cq(cq);
+ kref_put(&cq->cq_kref, ionic_cq_complete);
+ list_del(&cq->ibkill_flush_ent);
+ }
+}
+
static void ionic_kill_ibdev(struct ionic_ibdev *dev, bool fatal_path)
{
unsigned long irqflags;
@@ -694,6 +730,9 @@ static void ionic_kill_ibdev(struct ionic_ibdev *dev, bool fatal_path)
spin_unlock(&aq->lock);
}

+ if (do_flush)
+ ionic_flush_qs(dev);
+
local_irq_restore(irqflags);

/* Post a fatal event if requested */
@@ -832,6 +871,64 @@ static void ionic_cq_event(struct ionic_ibdev *dev, u32 cqid, u8 code)
kref_put(&cq->cq_kref, ionic_cq_complete);
}

+static void ionic_qp_event(struct ionic_ibdev *dev, u32 qpid, u8 code)
+{
+ struct ib_event ibev;
+ struct ionic_qp *qp;
+
+ rcu_read_lock();
+ qp = xa_load(&dev->qp_tbl, qpid);
+ if (qp)
+ kref_get(&qp->qp_kref);
+ rcu_read_unlock();
+
+ if (!qp) {
+ ibdev_dbg(&dev->ibdev,
+ "missing qpid %#x code %u\n", qpid, code);
+ return;
+ }
+
+ ibev.device = &dev->ibdev;
+ ibev.element.qp = &qp->ibqp;
+
+ switch (code) {
+ case IONIC_V1_EQE_SQ_DRAIN:
+ ibev.event = IB_EVENT_SQ_DRAINED;
+ break;
+
+ case IONIC_V1_EQE_QP_COMM_EST:
+ ibev.event = IB_EVENT_COMM_EST;
+ break;
+
+ case IONIC_V1_EQE_QP_LAST_WQE:
+ ibev.event = IB_EVENT_QP_LAST_WQE_REACHED;
+ break;
+
+ case IONIC_V1_EQE_QP_ERR:
+ ibev.event = IB_EVENT_QP_FATAL;
+ break;
+
+ case IONIC_V1_EQE_QP_ERR_REQUEST:
+ ibev.event = IB_EVENT_QP_REQ_ERR;
+ break;
+
+ case IONIC_V1_EQE_QP_ERR_ACCESS:
+ ibev.event = IB_EVENT_QP_ACCESS_ERR;
+ break;
+
+ default:
+ ibdev_dbg(&dev->ibdev,
+ "unrecognized qpid %#x code %u\n", qpid, code);
+ goto out;
+ }
+
+ if (qp->ibqp.event_handler)
+ qp->ibqp.event_handler(&ibev, qp->ibqp.qp_context);
+
+out:
+ kref_put(&qp->qp_kref, ionic_qp_complete);
+}
+
static u16 ionic_poll_eq(struct ionic_eq *eq, u16 budget)
{
struct ionic_ibdev *dev = eq->dev;
@@ -861,6 +958,10 @@ static u16 ionic_poll_eq(struct ionic_eq *eq, u16 budget)
ionic_cq_event(dev, qid, code);
break;

+ case IONIC_V1_EQE_TYPE_QP:
+ ionic_qp_event(dev, qid, code);
+ break;
+
default:
ibdev_dbg(&dev->ibdev,
"unknown event %#x type %u\n", evt, type);
diff --git a/drivers/infiniband/hw/ionic/ionic_controlpath.c b/drivers/infiniband/hw/ionic/ionic_controlpath.c
index 84a39e9fed40..a8fab5d26529 100644
--- a/drivers/infiniband/hw/ionic/ionic_controlpath.c
+++ b/drivers/infiniband/hw/ionic/ionic_controlpath.c
@@ -1,8 +1,19 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2018-2025, Advanced Micro Devices, Inc. */

+#include <linux/module.h>
+#include <linux/printk.h>
+#include <rdma/ib_addr.h>
+#include <rdma/ib_cache.h>
+#include <rdma/ib_user_verbs.h>
+#include <ionic_api.h>
+
+#include "ionic_fw.h"
#include "ionic_ibdev.h"

+#define ionic_set_ecn(tos) (((tos) | 2u) & ~1u)
+#define ionic_clear_ecn(tos) ((tos) & ~3u)
+
static int ionic_validate_qdesc(struct ionic_qdesc *q)
{
if (!q->addr || !q->size || !q->mask ||
@@ -182,3 +193,2522 @@ void ionic_destroy_cq_common(struct ionic_ibdev *dev, struct ionic_cq *cq)

cq->vcq = NULL;
}
+
+static int ionic_validate_qdesc_zero(struct ionic_qdesc *q)
+{
+ if (q->addr || q->size || q->mask || q->depth_log2 || q->stride_log2)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int ionic_get_pdid(struct ionic_ibdev *dev, u32 *pdid)
+{
+ int rc;
+
+ rc = ionic_resid_get(&dev->inuse_pdid);
+ if (rc < 0)
+ return rc;
+
+ *pdid = rc;
+ return 0;
+}
+
+static int ionic_get_ahid(struct ionic_ibdev *dev, u32 *ahid)
+{
+ int rc;
+
+ rc = ionic_resid_get(&dev->inuse_ahid);
+ if (rc < 0)
+ return rc;
+
+ *ahid = rc;
+ return 0;
+}
+
+static int ionic_get_mrid(struct ionic_ibdev *dev, u32 *mrid)
+{
+ int rc;
+
+ /* wrap to 1, skip reserved lkey */
+ rc = ionic_resid_get_shared(&dev->inuse_mrid, 1,
+ dev->inuse_mrid.inuse_size);
+ if (rc < 0)
+ return rc;
+
+ *mrid = ionic_mrid(rc, dev->next_mrkey++);
+ return 0;
+}
+
+static int ionic_get_gsi_qpid(struct ionic_ibdev *dev, u32 *qpid)
+{
+ int rc = 0;
+
+ rc = ionic_resid_get_shared(&dev->inuse_qpid, IB_QPT_GSI, IB_QPT_GSI + 1);
+ if (rc < 0)
+ return rc;
+
+ *qpid = IB_QPT_GSI;
+ return 0;
+}
+
+static int ionic_get_qpid(struct ionic_ibdev *dev, u32 *qpid,
+ u8 *udma_idx, u8 udma_mask)
+{
+ unsigned int size, base, bound;
+ int udma_i, udma_x, udma_ix;
+ int rc = -EINVAL;
+
+ udma_x = dev->next_qpid_udma_idx;
+
+ dev->next_qpid_udma_idx ^= dev->lif_cfg.udma_count - 1;
+
+ for (udma_i = 0; udma_i < dev->lif_cfg.udma_count; ++udma_i) {
+ udma_ix = udma_i ^ udma_x;
+
+ if (!(udma_mask & BIT(udma_ix)))
+ continue;
+
+ size = dev->lif_cfg.qp_count / dev->lif_cfg.udma_count;
+ base = size * udma_ix;
+ bound = base + size;
+
+ /* skip reserved SMI and GSI qpids in group zero */
+ if (!base)
+ base = 2;
+
+ rc = ionic_resid_get_shared(&dev->inuse_qpid, base, bound);
+ if (rc >= 0) {
+ *qpid = ionic_bitid_to_qid(rc,
+ dev->lif_cfg.udma_qgrp_shift,
+ dev->half_qpid_udma_shift);
+ *udma_idx = udma_ix;
+
+ rc = 0;
+ break;
+ }
+ }
+
+ return rc;
+}
+
+static int ionic_get_dbid(struct ionic_ibdev *dev, u32 *dbid, phys_addr_t *addr)
+{
+ int rc, dbpage_num;
+
+ /* wrap to 1, skip kernel reserved */
+ rc = ionic_resid_get_shared(&dev->inuse_dbid, 1,
+ dev->inuse_dbid.inuse_size);
+ if (rc < 0)
+ return rc;
+
+ dbpage_num = (dev->lif_cfg.lif_hw_index * dev->lif_cfg.dbid_count) + rc;
+ *addr = dev->lif_cfg.db_phys + ((phys_addr_t)dbpage_num << PAGE_SHIFT);
+
+ *dbid = rc;
+
+ return 0;
+}
+
+static void ionic_put_pdid(struct ionic_ibdev *dev, u32 pdid)
+{
+ ionic_resid_put(&dev->inuse_pdid, pdid);
+}
+
+static void ionic_put_ahid(struct ionic_ibdev *dev, u32 ahid)
+{
+ ionic_resid_put(&dev->inuse_ahid, ahid);
+}
+
+static void ionic_put_mrid(struct ionic_ibdev *dev, u32 mrid)
+{
+ ionic_resid_put(&dev->inuse_mrid, ionic_mrid_index(mrid));
+}
+
+static void ionic_put_qpid(struct ionic_ibdev *dev, u32 qpid)
+{
+ u32 bitid = ionic_qid_to_bitid(qpid,
+ dev->lif_cfg.udma_qgrp_shift,
+ dev->half_qpid_udma_shift);
+
+ ionic_resid_put(&dev->inuse_qpid, bitid);
+}
+
+static void ionic_put_dbid(struct ionic_ibdev *dev, u32 dbid)
+{
+ ionic_resid_put(&dev->inuse_dbid, dbid);
+}
+
+static struct rdma_user_mmap_entry*
+ionic_mmap_entry_insert(struct ionic_ctx *ctx, unsigned long size,
+ unsigned long pfn, u8 mmap_flags, u64 *offset)
+{
+ struct ionic_mmap_entry *entry;
+ int rc;
+
+ entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+ if (!entry)
+ return NULL;
+
+ entry->size = size;
+ entry->pfn = pfn;
+ entry->mmap_flags = mmap_flags;
+
+ rc = rdma_user_mmap_entry_insert(&ctx->ibctx, &entry->rdma_entry,
+ entry->size);
+ if (rc) {
+ kfree(entry);
+ return NULL;
+ }
+
+ if (offset)
+ *offset = rdma_user_mmap_get_offset(&entry->rdma_entry);
+
+ return &entry->rdma_entry;
+}
+
+int ionic_alloc_ucontext(struct ib_ucontext *ibctx, struct ib_udata *udata)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibctx->device);
+ struct ionic_ctx *ctx = to_ionic_ctx(ibctx);
+ struct ionic_ctx_resp resp = {};
+ struct ionic_ctx_req req;
+ phys_addr_t db_phys = 0;
+ int rc;
+
+ rc = ib_copy_from_udata(&req, udata, sizeof(req));
+ if (rc)
+ return rc;
+
+ /* try to allocate dbid for user ctx */
+ rc = ionic_get_dbid(dev, &ctx->dbid, &db_phys);
+ if (rc < 0)
+ return rc;
+
+ ibdev_dbg(&dev->ibdev, "user space dbid %u\n", ctx->dbid);
+
+ ctx->mmap_dbell = ionic_mmap_entry_insert(ctx, PAGE_SIZE,
+ PHYS_PFN(db_phys), 0, NULL);
+ if (!ctx->mmap_dbell)
+ goto err_mmap_dbell;
+
+ resp.page_shift = PAGE_SHIFT;
+
+ resp.dbell_offset = db_phys & ~PAGE_MASK;
+
+ resp.version = dev->lif_cfg.rdma_version;
+ resp.qp_opcodes = dev->lif_cfg.qp_opcodes;
+ resp.admin_opcodes = dev->lif_cfg.admin_opcodes;
+
+ resp.sq_qtype = dev->lif_cfg.sq_qtype;
+ resp.rq_qtype = dev->lif_cfg.rq_qtype;
+ resp.cq_qtype = dev->lif_cfg.cq_qtype;
+ resp.admin_qtype = dev->lif_cfg.aq_qtype;
+ resp.max_stride = dev->lif_cfg.max_stride;
+ resp.max_spec = IONIC_SPEC_HIGH;
+
+ resp.udma_count = dev->lif_cfg.udma_count;
+ resp.expdb_mask = dev->lif_cfg.expdb_mask;
+
+ if (dev->lif_cfg.sq_expdb)
+ resp.expdb_qtypes |= IONIC_EXPDB_SQ;
+ if (dev->lif_cfg.rq_expdb)
+ resp.expdb_qtypes |= IONIC_EXPDB_RQ;
+
+ rc = ib_copy_to_udata(udata, &resp, sizeof(resp));
+ if (rc)
+ goto err_resp;
+
+ return 0;
+
+err_resp:
+ rdma_user_mmap_entry_remove(ctx->mmap_dbell);
+err_mmap_dbell:
+ ionic_put_dbid(dev, ctx->dbid);
+ return rc;
+}
+
+void ionic_dealloc_ucontext(struct ib_ucontext *ibctx)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibctx->device);
+ struct ionic_ctx *ctx = to_ionic_ctx(ibctx);
+
+ rdma_user_mmap_entry_remove(ctx->mmap_dbell);
+ ionic_put_dbid(dev, ctx->dbid);
+}
+
+int ionic_mmap(struct ib_ucontext *ibctx, struct vm_area_struct *vma)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibctx->device);
+ struct ionic_ctx *ctx = to_ionic_ctx(ibctx);
+ struct rdma_user_mmap_entry *rdma_entry;
+ struct ionic_mmap_entry *ionic_entry;
+ int rc = 0;
+
+ rdma_entry = rdma_user_mmap_entry_get(&ctx->ibctx, vma);
+ if (!rdma_entry) {
+ ibdev_dbg(&dev->ibdev, "not found %#lx\n",
+ vma->vm_pgoff << PAGE_SHIFT);
+ return -EINVAL;
+ }
+
+ ionic_entry = container_of(rdma_entry, struct ionic_mmap_entry,
+ rdma_entry);
+
+ ibdev_dbg(&dev->ibdev, "writecombine? %d\n",
+ ionic_entry->mmap_flags & IONIC_MMAP_WC);
+ if (ionic_entry->mmap_flags & IONIC_MMAP_WC)
+ vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+ else
+ vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+
+ ibdev_dbg(&dev->ibdev, "remap st %#lx pf %#lx sz %#lx\n",
+ vma->vm_start, ionic_entry->pfn, ionic_entry->size);
+ rc = rdma_user_mmap_io(&ctx->ibctx, vma, ionic_entry->pfn,
+ ionic_entry->size, vma->vm_page_prot,
+ rdma_entry);
+ if (rc)
+ ibdev_dbg(&dev->ibdev, "remap failed %d\n", rc);
+
+ rdma_user_mmap_entry_put(rdma_entry);
+ return rc;
+}
+
+void ionic_mmap_free(struct rdma_user_mmap_entry *rdma_entry)
+{
+ struct ionic_mmap_entry *ionic_entry;
+
+ ionic_entry = container_of(rdma_entry, struct ionic_mmap_entry,
+ rdma_entry);
+ kfree(ionic_entry);
+}
+
+int ionic_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibpd->device);
+ struct ionic_pd *pd = to_ionic_pd(ibpd);
+ int rc;
+
+ rc = ionic_get_pdid(dev, &pd->pdid);
+ if (rc)
+ goto err_pdid;
+
+ return 0;
+
+err_pdid:
+ return rc;
+}
+
+int ionic_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibpd->device);
+ struct ionic_pd *pd = to_ionic_pd(ibpd);
+
+ ionic_put_pdid(dev, pd->pdid);
+
+ return 0;
+}
+
+static int ionic_build_hdr(struct ionic_ibdev *dev,
+ struct ib_ud_header *hdr,
+ const struct rdma_ah_attr *attr,
+ u16 sport, bool want_ecn)
+{
+ const struct ib_global_route *grh;
+ enum rdma_network_type net;
+ u16 vlan;
+ int rc;
+
+ if (attr->ah_flags != IB_AH_GRH)
+ return -EINVAL;
+ if (attr->type != RDMA_AH_ATTR_TYPE_ROCE)
+ return -EINVAL;
+
+ grh = rdma_ah_read_grh(attr);
+
+ rc = rdma_read_gid_l2_fields(grh->sgid_attr, &vlan, &hdr->eth.smac_h[0]);
+ if (rc)
+ return rc;
+
+ net = rdma_gid_attr_network_type(grh->sgid_attr);
+
+ rc = ib_ud_header_init(0, /* no payload */
+ 0, /* no lrh */
+ 1, /* yes eth */
+ vlan != 0xffff,
+ 0, /* no grh */
+ net == RDMA_NETWORK_IPV4 ? 4 : 6,
+ 1, /* yes udp */
+ 0, /* no imm */
+ hdr);
+ if (rc)
+ return rc;
+
+ ether_addr_copy(hdr->eth.dmac_h, attr->roce.dmac);
+
+ if (net == RDMA_NETWORK_IPV4) {
+ hdr->eth.type = cpu_to_be16(ETH_P_IP);
+ hdr->ip4.frag_off = cpu_to_be16(0x4000); /* don't fragment */
+ hdr->ip4.ttl = grh->hop_limit;
+ hdr->ip4.tot_len = cpu_to_be16(0xffff);
+ hdr->ip4.saddr =
+ *(const __be32 *)(grh->sgid_attr->gid.raw + 12);
+ hdr->ip4.daddr = *(const __be32 *)(grh->dgid.raw + 12);
+
+ if (want_ecn)
+ hdr->ip4.tos = ionic_set_ecn(grh->traffic_class);
+ else
+ hdr->ip4.tos = ionic_clear_ecn(grh->traffic_class);
+ } else {
+ hdr->eth.type = cpu_to_be16(ETH_P_IPV6);
+ hdr->grh.flow_label = cpu_to_be32(grh->flow_label);
+ hdr->grh.hop_limit = grh->hop_limit;
+ hdr->grh.source_gid = grh->sgid_attr->gid;
+ hdr->grh.destination_gid = grh->dgid;
+
+ if (want_ecn)
+ hdr->grh.traffic_class =
+ ionic_set_ecn(grh->traffic_class);
+ else
+ hdr->grh.traffic_class =
+ ionic_clear_ecn(grh->traffic_class);
+ }
+
+ if (vlan != 0xffff) {
+ vlan |= rdma_ah_get_sl(attr) << VLAN_PRIO_SHIFT;
+ hdr->vlan.tag = cpu_to_be16(vlan);
+ hdr->vlan.type = hdr->eth.type;
+ hdr->eth.type = cpu_to_be16(ETH_P_8021Q);
+ }
+
+ hdr->udp.sport = cpu_to_be16(sport);
+ hdr->udp.dport = cpu_to_be16(ROCE_V2_UDP_DPORT);
+
+ return 0;
+}
+
+static void ionic_set_ah_attr(struct ionic_ibdev *dev,
+ struct rdma_ah_attr *ah_attr,
+ struct ib_ud_header *hdr,
+ int sgid_index)
+{
+ u32 flow_label;
+ u16 vlan = 0;
+ u8 tos, ttl;
+
+ if (hdr->vlan_present)
+ vlan = be16_to_cpu(hdr->vlan.tag);
+
+ if (hdr->ipv4_present) {
+ flow_label = 0;
+ ttl = hdr->ip4.ttl;
+ tos = hdr->ip4.tos;
+ *(__be16 *)(hdr->grh.destination_gid.raw + 10) = cpu_to_be16(0xffff);
+ *(__be32 *)(hdr->grh.destination_gid.raw + 12) = hdr->ip4.daddr;
+ } else {
+ flow_label = be32_to_cpu(hdr->grh.flow_label);
+ ttl = hdr->grh.hop_limit;
+ tos = hdr->grh.traffic_class;
+ }
+
+ memset(ah_attr, 0, sizeof(*ah_attr));
+ ah_attr->type = RDMA_AH_ATTR_TYPE_ROCE;
+ if (hdr->eth_present)
+ memcpy(&ah_attr->roce.dmac, &hdr->eth.dmac_h, ETH_ALEN);
+ rdma_ah_set_sl(ah_attr, vlan >> VLAN_PRIO_SHIFT);
+ rdma_ah_set_port_num(ah_attr, 1);
+ rdma_ah_set_grh(ah_attr, NULL, flow_label, sgid_index, ttl, tos);
+ rdma_ah_set_dgid_raw(ah_attr, &hdr->grh.destination_gid);
+}
+
+static int ionic_create_ah_cmd(struct ionic_ibdev *dev,
+ struct ionic_ah *ah,
+ struct ionic_pd *pd,
+ struct rdma_ah_attr *attr,
+ u32 flags)
+{
+ struct ionic_admin_wr wr = {
+ .work = COMPLETION_INITIALIZER_ONSTACK(wr.work),
+ .wqe = {
+ .op = IONIC_V1_ADMIN_CREATE_AH,
+ .len = cpu_to_le16(IONIC_ADMIN_CREATE_AH_IN_V1_LEN),
+ .cmd.create_ah = {
+ .pd_id = cpu_to_le32(pd->pdid),
+ .dbid_flags = cpu_to_le16(dev->lif_cfg.dbid),
+ .id_ver = cpu_to_le32(ah->ahid),
+ }
+ }
+ };
+ enum ionic_admin_flags admin_flags = 0;
+ dma_addr_t hdr_dma = 0;
+ void *hdr_buf;
+ gfp_t gfp = GFP_ATOMIC;
+ int rc, hdr_len = 0;
+
+ if (dev->lif_cfg.admin_opcodes <= IONIC_V1_ADMIN_CREATE_AH)
+ return -EBADRQC;
+
+ if (flags & RDMA_CREATE_AH_SLEEPABLE)
+ gfp = GFP_KERNEL;
+ else
+ admin_flags |= IONIC_ADMIN_F_BUSYWAIT;
+
+ rc = ionic_build_hdr(dev, &ah->hdr, attr, IONIC_ROCE_UDP_SPORT, false);
+ if (rc)
+ goto err_hdr;
+
+ if (ah->hdr.eth.type == cpu_to_be16(ETH_P_8021Q)) {
+ if (ah->hdr.vlan.type == cpu_to_be16(ETH_P_IP))
+ wr.wqe.cmd.create_ah.csum_profile =
+ IONIC_TFP_CSUM_PROF_ETH_QTAG_IPV4_UDP;
+ else
+ wr.wqe.cmd.create_ah.csum_profile =
+ IONIC_TFP_CSUM_PROF_ETH_QTAG_IPV6_UDP;
+ } else {
+ if (ah->hdr.eth.type == cpu_to_be16(ETH_P_IP))
+ wr.wqe.cmd.create_ah.csum_profile =
+ IONIC_TFP_CSUM_PROF_ETH_IPV4_UDP;
+ else
+ wr.wqe.cmd.create_ah.csum_profile =
+ IONIC_TFP_CSUM_PROF_ETH_IPV6_UDP;
+ }
+
+ ah->sgid_index = rdma_ah_read_grh(attr)->sgid_index;
+
+ hdr_buf = kmalloc(PAGE_SIZE, gfp);
+ if (!hdr_buf) {
+ rc = -ENOMEM;
+ goto err_buf;
+ }
+
+ hdr_len = ib_ud_header_pack(&ah->hdr, hdr_buf);
+ hdr_len -= IB_BTH_BYTES;
+ hdr_len -= IB_DETH_BYTES;
+ ibdev_dbg(&dev->ibdev, "roce packet header template\n");
+ print_hex_dump_debug("hdr ", DUMP_PREFIX_OFFSET, 16, 1,
+ hdr_buf, hdr_len, true);
+
+ hdr_dma = dma_map_single(dev->lif_cfg.hwdev, hdr_buf, hdr_len,
+ DMA_TO_DEVICE);
+
+ rc = dma_mapping_error(dev->lif_cfg.hwdev, hdr_dma);
+ if (rc)
+ goto err_dma;
+
+ wr.wqe.cmd.create_ah.dma_addr = cpu_to_le64(hdr_dma);
+ wr.wqe.cmd.create_ah.length = cpu_to_le32(hdr_len);
+
+ ionic_admin_post(dev, &wr);
+ rc = ionic_admin_wait(dev, &wr, admin_flags);
+
+ dma_unmap_single(dev->lif_cfg.hwdev, hdr_dma, hdr_len,
+ DMA_TO_DEVICE);
+err_dma:
+ kfree(hdr_buf);
+err_buf:
+err_hdr:
+ return rc;
+}
+
+static int ionic_destroy_ah_cmd(struct ionic_ibdev *dev, u32 ahid, u32 flags)
+{
+ struct ionic_admin_wr wr = {
+ .work = COMPLETION_INITIALIZER_ONSTACK(wr.work),
+ .wqe = {
+ .op = IONIC_V1_ADMIN_DESTROY_AH,
+ .len = cpu_to_le16(IONIC_ADMIN_DESTROY_AH_IN_V1_LEN),
+ .cmd.destroy_ah = {
+ .ah_id = cpu_to_le32(ahid),
+ },
+ }
+ };
+ enum ionic_admin_flags admin_flags = IONIC_ADMIN_F_TEARDOWN;
+
+ if (dev->lif_cfg.admin_opcodes <= IONIC_V1_ADMIN_DESTROY_AH)
+ return -EBADRQC;
+
+ if (!(flags & RDMA_CREATE_AH_SLEEPABLE))
+ admin_flags |= IONIC_ADMIN_F_BUSYWAIT;
+
+ ionic_admin_post(dev, &wr);
+ ionic_admin_wait(dev, &wr, admin_flags);
+
+ /* No host-memory resource is associated with ah, so it is ok
+ * to "succeed" and complete this destroy ah on the host.
+ */
+ return 0;
+}
+
+int ionic_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *init_attr,
+ struct ib_udata *udata)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibah->device);
+ struct rdma_ah_attr *attr = init_attr->ah_attr;
+ struct ionic_pd *pd = to_ionic_pd(ibah->pd);
+ struct ionic_ah *ah = to_ionic_ah(ibah);
+ struct ionic_ah_resp resp = {};
+ u32 flags = init_attr->flags;
+ int rc;
+
+ rc = ionic_get_ahid(dev, &ah->ahid);
+ if (rc)
+ goto err_ahid;
+
+ rc = ionic_create_ah_cmd(dev, ah, pd, attr, flags);
+ if (rc)
+ goto err_cmd;
+
+ if (udata) {
+ resp.ahid = ah->ahid;
+
+ rc = ib_copy_to_udata(udata, &resp, sizeof(resp));
+ if (rc)
+ goto err_resp;
+ }
+
+ return 0;
+
+err_resp:
+ ionic_destroy_ah_cmd(dev, ah->ahid, flags);
+err_cmd:
+ ionic_put_ahid(dev, ah->ahid);
+err_ahid:
+ return rc;
+}
+
+int ionic_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibah->device);
+ struct ionic_ah *ah = to_ionic_ah(ibah);
+
+ ionic_set_ah_attr(dev, ah_attr, &ah->hdr, ah->sgid_index);
+
+ return 0;
+}
+
+int ionic_destroy_ah(struct ib_ah *ibah, u32 flags)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibah->device);
+ struct ionic_ah *ah = to_ionic_ah(ibah);
+ int rc;
+
+ rc = ionic_destroy_ah_cmd(dev, ah->ahid, flags);
+ if (rc)
+ return rc;
+
+ ionic_put_ahid(dev, ah->ahid);
+
+ return 0;
+}
+
+static int ionic_create_mr_cmd(struct ionic_ibdev *dev,
+ struct ionic_pd *pd,
+ struct ionic_mr *mr,
+ u64 addr,
+ u64 length)
+{
+ struct ionic_admin_wr wr = {
+ .work = COMPLETION_INITIALIZER_ONSTACK(wr.work),
+ .wqe = {
+ .op = IONIC_V1_ADMIN_CREATE_MR,
+ .len = cpu_to_le16(IONIC_ADMIN_CREATE_MR_IN_V1_LEN),
+ .cmd.create_mr = {
+ .va = cpu_to_le64(addr),
+ .length = cpu_to_le64(length),
+ .pd_id = cpu_to_le32(pd->pdid),
+ .page_size_log2 = mr->buf.page_size_log2,
+ .tbl_index = cpu_to_le32(~0),
+ .map_count = cpu_to_le32(mr->buf.tbl_pages),
+ .dma_addr = ionic_pgtbl_dma(&mr->buf, addr),
+ .dbid_flags = cpu_to_le16(mr->flags),
+ .id_ver = cpu_to_le32(mr->mrid),
+ }
+ }
+ };
+ int rc;
+
+ if (dev->lif_cfg.admin_opcodes <= IONIC_V1_ADMIN_CREATE_MR)
+ return -EBADRQC;
+
+ ionic_admin_post(dev, &wr);
+ rc = ionic_admin_wait(dev, &wr, 0);
+ if (!rc)
+ mr->created = true;
+
+ return rc;
+}
+
+static int ionic_destroy_mr_cmd(struct ionic_ibdev *dev, u32 mrid)
+{
+ struct ionic_admin_wr wr = {
+ .work = COMPLETION_INITIALIZER_ONSTACK(wr.work),
+ .wqe = {
+ .op = IONIC_V1_ADMIN_DESTROY_MR,
+ .len = cpu_to_le16(IONIC_ADMIN_DESTROY_MR_IN_V1_LEN),
+ .cmd.destroy_mr = {
+ .mr_id = cpu_to_le32(mrid),
+ },
+ }
+ };
+
+ if (dev->lif_cfg.admin_opcodes <= IONIC_V1_ADMIN_DESTROY_MR)
+ return -EBADRQC;
+
+ ionic_admin_post(dev, &wr);
+
+ return ionic_admin_wait(dev, &wr, IONIC_ADMIN_F_TEARDOWN);
+}
+
+struct ib_mr *ionic_get_dma_mr(struct ib_pd *ibpd, int access)
+{
+ struct ionic_pd *pd = to_ionic_pd(ibpd);
+ struct ionic_mr *mr;
+
+ mr = kzalloc(sizeof(*mr), GFP_KERNEL);
+ if (!mr)
+ return ERR_PTR(-ENOMEM);
+
+ mr->ibmr.lkey = IONIC_DMA_LKEY;
+ mr->ibmr.rkey = IONIC_DMA_RKEY;
+
+ if (pd)
+ pd->flags |= IONIC_QPF_PRIVILEGED;
+
+ return &mr->ibmr;
+}
+
+struct ib_mr *ionic_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 length,
+ u64 addr, int access, struct ib_udata *udata)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibpd->device);
+ struct ionic_pd *pd = to_ionic_pd(ibpd);
+ struct ionic_mr *mr;
+ unsigned long pg_sz;
+ int rc;
+
+ mr = kzalloc(sizeof(*mr), GFP_KERNEL);
+ if (!mr) {
+ rc = -ENOMEM;
+ goto err_mr;
+ }
+
+ rc = ionic_get_mrid(dev, &mr->mrid);
+ if (rc)
+ goto err_mrid;
+
+ mr->ibmr.lkey = mr->mrid;
+ mr->ibmr.rkey = mr->mrid;
+ mr->ibmr.iova = addr;
+ mr->ibmr.length = length;
+
+ mr->flags = IONIC_MRF_USER_MR | to_ionic_mr_flags(access);
+
+ mr->umem = ib_umem_get(&dev->ibdev, start, length, access);
+ if (IS_ERR(mr->umem)) {
+ rc = PTR_ERR(mr->umem);
+ goto err_umem;
+ }
+
+ pg_sz = ib_umem_find_best_pgsz(mr->umem,
+ dev->lif_cfg.page_size_supported,
+ addr);
+ if (!pg_sz) {
+ rc = -EINVAL;
+ goto err_pgtbl;
+ }
+
+ rc = ionic_pgtbl_init(dev, &mr->buf, mr->umem, 0, 1, pg_sz);
+ if (rc)
+ goto err_pgtbl;
+
+ rc = ionic_create_mr_cmd(dev, pd, mr, addr, length);
+ if (rc)
+ goto err_cmd;
+
+ ionic_pgtbl_unbuf(dev, &mr->buf);
+
+ return &mr->ibmr;
+
+err_cmd:
+ ionic_pgtbl_unbuf(dev, &mr->buf);
+err_pgtbl:
+ ib_umem_release(mr->umem);
+err_umem:
+ ionic_put_mrid(dev, mr->mrid);
+err_mrid:
+ kfree(mr);
+err_mr:
+ return ERR_PTR(rc);
+}
+
+struct ib_mr *ionic_reg_user_mr_dmabuf(struct ib_pd *ibpd, u64 offset,
+ u64 length, u64 addr, int fd, int access,
+ struct uverbs_attr_bundle *attrs)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibpd->device);
+ struct ionic_pd *pd = to_ionic_pd(ibpd);
+ struct ib_umem_dmabuf *umem_dmabuf;
+ struct ionic_mr *mr;
+ u64 pg_sz;
+ int rc;
+
+ mr = kzalloc(sizeof(*mr), GFP_KERNEL);
+ if (!mr) {
+ rc = -ENOMEM;
+ goto err_mr;
+ }
+
+ rc = ionic_get_mrid(dev, &mr->mrid);
+ if (rc)
+ goto err_mrid;
+
+ mr->ibmr.lkey = mr->mrid;
+ mr->ibmr.rkey = mr->mrid;
+ mr->ibmr.iova = addr;
+ mr->ibmr.length = length;
+
+ mr->flags = IONIC_MRF_USER_MR | to_ionic_mr_flags(access);
+
+ umem_dmabuf = ib_umem_dmabuf_get_pinned(&dev->ibdev, offset, length,
+ fd, access);
+ if (IS_ERR(umem_dmabuf)) {
+ rc = PTR_ERR(umem_dmabuf);
+ goto err_umem;
+ }
+
+ mr->umem = &umem_dmabuf->umem;
+
+ pg_sz = ib_umem_find_best_pgsz(mr->umem,
+ dev->lif_cfg.page_size_supported,
+ addr);
+ if (!pg_sz) {
+ rc = -EINVAL;
+ goto err_pgtbl;
+ }
+
+ rc = ionic_pgtbl_init(dev, &mr->buf, mr->umem, 0, 1, pg_sz);
+ if (rc)
+ goto err_pgtbl;
+
+ rc = ionic_create_mr_cmd(dev, pd, mr, addr, length);
+ if (rc)
+ goto err_cmd;
+
+ ionic_pgtbl_unbuf(dev, &mr->buf);
+
+ return &mr->ibmr;
+
+err_cmd:
+ ionic_pgtbl_unbuf(dev, &mr->buf);
+err_pgtbl:
+ ib_umem_release(mr->umem);
+err_umem:
+ ionic_put_mrid(dev, mr->mrid);
+err_mrid:
+ kfree(mr);
+err_mr:
+ return ERR_PTR(rc);
+}
+
+int ionic_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibmr->device);
+ struct ionic_mr *mr = to_ionic_mr(ibmr);
+ int rc;
+
+ if (!mr->ibmr.lkey)
+ goto out;
+
+ if (mr->created) {
+ rc = ionic_destroy_mr_cmd(dev, mr->mrid);
+ if (rc)
+ return rc;
+ }
+
+ ionic_pgtbl_unbuf(dev, &mr->buf);
+
+ if (mr->umem)
+ ib_umem_release(mr->umem);
+
+ ionic_put_mrid(dev, mr->mrid);
+
+out:
+ kfree(mr);
+
+ return 0;
+}
+
+struct ib_mr *ionic_alloc_mr(struct ib_pd *ibpd, enum ib_mr_type type,
+ u32 max_sg)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibpd->device);
+ struct ionic_pd *pd = to_ionic_pd(ibpd);
+ struct ionic_mr *mr;
+ int rc;
+
+ if (type != IB_MR_TYPE_MEM_REG) {
+ rc = -EINVAL;
+ goto err_mr;
+ }
+
+ mr = kzalloc(sizeof(*mr), GFP_KERNEL);
+ if (!mr) {
+ rc = -ENOMEM;
+ goto err_mr;
+ }
+
+ rc = ionic_get_mrid(dev, &mr->mrid);
+ if (rc)
+ goto err_mrid;
+
+ mr->ibmr.lkey = mr->mrid;
+ mr->ibmr.rkey = mr->mrid;
+
+ mr->flags = IONIC_MRF_PHYS_MR;
+
+ rc = ionic_pgtbl_init(dev, &mr->buf, mr->umem, 0, max_sg, PAGE_SIZE);
+ if (rc)
+ goto err_pgtbl;
+
+ mr->buf.tbl_pages = 0;
+
+ rc = ionic_create_mr_cmd(dev, pd, mr, 0, 0);
+ if (rc)
+ goto err_cmd;
+
+ return &mr->ibmr;
+
+err_cmd:
+ ionic_pgtbl_unbuf(dev, &mr->buf);
+err_pgtbl:
+ ionic_put_mrid(dev, mr->mrid);
+err_mrid:
+ kfree(mr);
+err_mr:
+ return ERR_PTR(rc);
+}
+
+static int ionic_map_mr_page(struct ib_mr *ibmr, u64 dma)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibmr->device);
+ struct ionic_mr *mr = to_ionic_mr(ibmr);
+
+ ibdev_dbg(&dev->ibdev, "dma %p\n", (void *)dma);
+ return ionic_pgtbl_page(&mr->buf, dma);
+}
+
+int ionic_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
+ unsigned int *sg_offset)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibmr->device);
+ struct ionic_mr *mr = to_ionic_mr(ibmr);
+ int rc;
+
+ /* mr must be allocated using ib_alloc_mr() */
+ if (unlikely(!mr->buf.tbl_limit))
+ return -EINVAL;
+
+ mr->buf.tbl_pages = 0;
+
+ if (mr->buf.tbl_buf)
+ dma_sync_single_for_cpu(dev->lif_cfg.hwdev, mr->buf.tbl_dma,
+ mr->buf.tbl_size, DMA_TO_DEVICE);
+
+ ibdev_dbg(&dev->ibdev, "sg %p nent %d\n", sg, sg_nents);
+ rc = ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, ionic_map_mr_page);
+
+ mr->buf.page_size_log2 = order_base_2(ibmr->page_size);
+
+ if (mr->buf.tbl_buf)
+ dma_sync_single_for_device(dev->lif_cfg.hwdev, mr->buf.tbl_dma,
+ mr->buf.tbl_size, DMA_TO_DEVICE);
+
+ return rc;
+}
+
+int ionic_alloc_mw(struct ib_mw *ibmw, struct ib_udata *udata)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibmw->device);
+ struct ionic_pd *pd = to_ionic_pd(ibmw->pd);
+ struct ionic_mr *mr = to_ionic_mw(ibmw);
+ int rc;
+
+ rc = ionic_get_mrid(dev, &mr->mrid);
+ if (rc)
+ goto err_mrid;
+
+ mr->ibmw.rkey = mr->mrid;
+
+ if (mr->ibmw.type == IB_MW_TYPE_1)
+ mr->flags = IONIC_MRF_MW_1;
+ else
+ mr->flags = IONIC_MRF_MW_2;
+
+ rc = ionic_create_mr_cmd(dev, pd, mr, 0, 0);
+ if (rc)
+ goto err_cmd;
+
+ return 0;
+
+err_cmd:
+ ionic_put_mrid(dev, mr->mrid);
+err_mrid:
+ return rc;
+}
+
+int ionic_dealloc_mw(struct ib_mw *ibmw)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibmw->device);
+ struct ionic_mr *mr = to_ionic_mw(ibmw);
+ int rc;
+
+ rc = ionic_destroy_mr_cmd(dev, mr->mrid);
+ if (rc)
+ return rc;
+
+ ionic_put_mrid(dev, mr->mrid);
+
+ return 0;
+}
+
+static int ionic_create_cq_cmd(struct ionic_ibdev *dev,
+ struct ionic_ctx *ctx,
+ struct ionic_cq *cq,
+ struct ionic_tbl_buf *buf)
+{
+ const u16 dbid = ionic_ctx_dbid(dev, ctx);
+ struct ionic_admin_wr wr = {
+ .work = COMPLETION_INITIALIZER_ONSTACK(wr.work),
+ .wqe = {
+ .op = IONIC_V1_ADMIN_CREATE_CQ,
+ .len = cpu_to_le16(IONIC_ADMIN_CREATE_CQ_IN_V1_LEN),
+ .cmd.create_cq = {
+ .eq_id = cpu_to_le32(cq->eqid),
+ .depth_log2 = cq->q.depth_log2,
+ .stride_log2 = cq->q.stride_log2,
+ .page_size_log2 = buf->page_size_log2,
+ .tbl_index = cpu_to_le32(~0),
+ .map_count = cpu_to_le32(buf->tbl_pages),
+ .dma_addr = ionic_pgtbl_dma(buf, 0),
+ .dbid_flags = cpu_to_le16(dbid),
+ .id_ver = cpu_to_le32(cq->cqid),
+ }
+ }
+ };
+
+ if (dev->lif_cfg.admin_opcodes <= IONIC_V1_ADMIN_CREATE_CQ)
+ return -EBADRQC;
+
+ ionic_admin_post(dev, &wr);
+
+ return ionic_admin_wait(dev, &wr, 0);
+}
+
+static int ionic_destroy_cq_cmd(struct ionic_ibdev *dev, u32 cqid)
+{
+ struct ionic_admin_wr wr = {
+ .work = COMPLETION_INITIALIZER_ONSTACK(wr.work),
+ .wqe = {
+ .op = IONIC_V1_ADMIN_DESTROY_CQ,
+ .len = cpu_to_le16(IONIC_ADMIN_DESTROY_CQ_IN_V1_LEN),
+ .cmd.destroy_cq = {
+ .cq_id = cpu_to_le32(cqid),
+ },
+ }
+ };
+
+ if (dev->lif_cfg.admin_opcodes <= IONIC_V1_ADMIN_DESTROY_CQ)
+ return -EBADRQC;
+
+ ionic_admin_post(dev, &wr);
+
+ return ionic_admin_wait(dev, &wr, IONIC_ADMIN_F_TEARDOWN);
+}
+
+int ionic_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
+ struct uverbs_attr_bundle *attrs)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibcq->device);
+ struct ib_udata *udata = &attrs->driver_udata;
+ struct ionic_ctx *ctx =
+ rdma_udata_to_drv_context(udata, struct ionic_ctx, ibctx);
+ struct ionic_vcq *vcq = to_ionic_vcq(ibcq);
+ struct ionic_tbl_buf buf = {};
+ struct ionic_cq_resp resp;
+ struct ionic_cq_req req;
+ int udma_idx = 0, rc;
+
+ if (udata) {
+ rc = ib_copy_from_udata(&req, udata, sizeof(req));
+ if (rc)
+ goto err_req;
+ }
+
+ vcq->udma_mask = BIT(dev->lif_cfg.udma_count) - 1;
+
+ if (udata)
+ vcq->udma_mask &= req.udma_mask;
+
+ if (!vcq->udma_mask) {
+ rc = -EINVAL;
+ goto err_init;
+ }
+
+ for (; udma_idx < dev->lif_cfg.udma_count; ++udma_idx) {
+ if (!(vcq->udma_mask & BIT(udma_idx)))
+ continue;
+
+ rc = ionic_create_cq_common(vcq, &buf, attr, ctx, udata,
+ &req.cq[udma_idx],
+ &resp.cqid[udma_idx],
+ udma_idx);
+ if (rc)
+ goto err_init;
+
+ rc = ionic_create_cq_cmd(dev, ctx, &vcq->cq[udma_idx], &buf);
+ if (rc)
+ goto err_cmd;
+
+ ionic_pgtbl_unbuf(dev, &buf);
+ }
+
+ vcq->ibcq.cqe = attr->cqe;
+
+ if (udata) {
+ resp.udma_mask = vcq->udma_mask;
+
+ rc = ib_copy_to_udata(udata, &resp, sizeof(resp));
+ if (rc)
+ goto err_resp;
+ }
+
+ return 0;
+
+err_resp:
+ while (udma_idx) {
+ --udma_idx;
+ if (!(vcq->udma_mask & BIT(udma_idx)))
+ continue;
+ ionic_destroy_cq_cmd(dev, vcq->cq[udma_idx].cqid);
+err_cmd:
+ ionic_pgtbl_unbuf(dev, &buf);
+ ionic_destroy_cq_common(dev, &vcq->cq[udma_idx]);
+err_init:
+ ;
+ }
+err_req:
+ return rc;
+}
+
+int ionic_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibcq->device);
+ struct ionic_vcq *vcq = to_ionic_vcq(ibcq);
+ int udma_idx, rc_tmp, rc = 0;
+
+ for (udma_idx = dev->lif_cfg.udma_count; udma_idx; ) {
+ --udma_idx;
+
+ if (!(vcq->udma_mask & BIT(udma_idx)))
+ continue;
+
+ rc_tmp = ionic_destroy_cq_cmd(dev, vcq->cq[udma_idx].cqid);
+ if (rc_tmp) {
+ if (!rc)
+ rc = rc_tmp;
+
+ continue;
+ }
+
+ ionic_destroy_cq_common(dev, &vcq->cq[udma_idx]);
+ }
+
+ return rc;
+}
+
+static bool pd_remote_privileged(struct ib_pd *pd)
+{
+ return pd->flags & IB_PD_UNSAFE_GLOBAL_RKEY;
+}
+
+static int ionic_create_qp_cmd(struct ionic_ibdev *dev,
+ struct ionic_pd *pd,
+ struct ionic_cq *send_cq,
+ struct ionic_cq *recv_cq,
+ struct ionic_qp *qp,
+ struct ionic_tbl_buf *sq_buf,
+ struct ionic_tbl_buf *rq_buf,
+ struct ib_qp_init_attr *attr)
+{
+ const u16 dbid = ionic_obj_dbid(dev, pd->ibpd.uobject);
+ const u32 flags = to_ionic_qp_flags(0, 0,
+ qp->sq_cmb & IONIC_CMB_ENABLE,
+ qp->rq_cmb & IONIC_CMB_ENABLE,
+ qp->sq_spec, qp->rq_spec,
+ pd->flags & IONIC_QPF_PRIVILEGED,
+ pd_remote_privileged(&pd->ibpd));
+ struct ionic_admin_wr wr = {
+ .work = COMPLETION_INITIALIZER_ONSTACK(wr.work),
+ .wqe = {
+ .op = IONIC_V1_ADMIN_CREATE_QP,
+ .len = cpu_to_le16(IONIC_ADMIN_CREATE_QP_IN_V1_LEN),
+ .cmd.create_qp = {
+ .pd_id = cpu_to_le32(pd->pdid),
+ .priv_flags = cpu_to_be32(flags),
+ .type_state = to_ionic_qp_type(attr->qp_type),
+ .dbid_flags = cpu_to_le16(dbid),
+ .id_ver = cpu_to_le32(qp->qpid),
+ }
+ }
+ };
+
+ if (dev->lif_cfg.admin_opcodes <= IONIC_V1_ADMIN_CREATE_QP)
+ return -EBADRQC;
+
+ if (qp->has_sq) {
+ wr.wqe.cmd.create_qp.sq_cq_id = cpu_to_le32(send_cq->cqid);
+ wr.wqe.cmd.create_qp.sq_depth_log2 = qp->sq.depth_log2;
+ wr.wqe.cmd.create_qp.sq_stride_log2 = qp->sq.stride_log2;
+ wr.wqe.cmd.create_qp.sq_page_size_log2 = sq_buf->page_size_log2;
+ wr.wqe.cmd.create_qp.sq_tbl_index_xrcd_id = cpu_to_le32(~0);
+ wr.wqe.cmd.create_qp.sq_map_count =
+ cpu_to_le32(sq_buf->tbl_pages);
+ wr.wqe.cmd.create_qp.sq_dma_addr = ionic_pgtbl_dma(sq_buf, 0);
+ }
+
+ if (qp->has_rq) {
+ wr.wqe.cmd.create_qp.rq_cq_id = cpu_to_le32(recv_cq->cqid);
+ wr.wqe.cmd.create_qp.rq_depth_log2 = qp->rq.depth_log2;
+ wr.wqe.cmd.create_qp.rq_stride_log2 = qp->rq.stride_log2;
+ wr.wqe.cmd.create_qp.rq_page_size_log2 = rq_buf->page_size_log2;
+ wr.wqe.cmd.create_qp.rq_tbl_index_srq_id = cpu_to_le32(~0);
+ wr.wqe.cmd.create_qp.rq_map_count =
+ cpu_to_le32(rq_buf->tbl_pages);
+ wr.wqe.cmd.create_qp.rq_dma_addr = ionic_pgtbl_dma(rq_buf, 0);
+ }
+
+ ionic_admin_post(dev, &wr);
+
+ return ionic_admin_wait(dev, &wr, 0);
+}
+
+static int ionic_modify_qp_cmd(struct ionic_ibdev *dev,
+ struct ionic_pd *pd,
+ struct ionic_qp *qp,
+ struct ib_qp_attr *attr,
+ int mask)
+{
+ const u32 flags = to_ionic_qp_flags(attr->qp_access_flags,
+ attr->en_sqd_async_notify,
+ qp->sq_cmb & IONIC_CMB_ENABLE,
+ qp->rq_cmb & IONIC_CMB_ENABLE,
+ qp->sq_spec, qp->rq_spec,
+ pd->flags & IONIC_QPF_PRIVILEGED,
+ pd_remote_privileged(qp->ibqp.pd));
+ const u8 state = to_ionic_qp_modify_state(attr->qp_state,
+ attr->cur_qp_state);
+ struct ionic_admin_wr wr = {
+ .work = COMPLETION_INITIALIZER_ONSTACK(wr.work),
+ .wqe = {
+ .op = IONIC_V1_ADMIN_MODIFY_QP,
+ .len = cpu_to_le16(IONIC_ADMIN_MODIFY_QP_IN_V1_LEN),
+ .cmd.mod_qp = {
+ .attr_mask = cpu_to_be32(mask),
+ .access_flags = cpu_to_be16(flags),
+ .rq_psn = cpu_to_le32(attr->rq_psn),
+ .sq_psn = cpu_to_le32(attr->sq_psn),
+ .rate_limit_kbps =
+ cpu_to_le32(attr->rate_limit),
+ .pmtu = (attr->path_mtu + 7),
+ .retry = (attr->retry_cnt |
+ (attr->rnr_retry << 4)),
+ .rnr_timer = attr->min_rnr_timer,
+ .retry_timeout = attr->timeout,
+ .type_state = state,
+ .id_ver = cpu_to_le32(qp->qpid),
+ }
+ }
+ };
+ const struct ib_global_route *grh = rdma_ah_read_grh(&attr->ah_attr);
+ void *hdr_buf = NULL;
+ dma_addr_t hdr_dma = 0;
+ int rc, hdr_len = 0;
+ u16 sport;
+
+ if (dev->lif_cfg.admin_opcodes <= IONIC_V1_ADMIN_MODIFY_QP)
+ return -EBADRQC;
+
+ if ((mask & IB_QP_MAX_DEST_RD_ATOMIC) && attr->max_dest_rd_atomic) {
+ /* Note, round up/down was already done for allocating
+ * resources on the device. The allocation order is in cache
+ * line size. We can't use the order of the resource
+ * allocation to determine the order wqes here, because for
+ * queue length <= one cache line it is not distinct.
+ *
+ * Therefore, order wqes is computed again here.
+ *
+ * Account for hole and round up to the next order.
+ */
+ wr.wqe.cmd.mod_qp.rsq_depth =
+ order_base_2(attr->max_dest_rd_atomic + 1);
+ wr.wqe.cmd.mod_qp.rsq_index = cpu_to_le32(~0);
+ }
+
+ if ((mask & IB_QP_MAX_QP_RD_ATOMIC) && attr->max_rd_atomic) {
+ /* Account for hole and round down to the next order */
+ wr.wqe.cmd.mod_qp.rrq_depth =
+ order_base_2(attr->max_rd_atomic + 2) - 1;
+ wr.wqe.cmd.mod_qp.rrq_index = cpu_to_le32(~0);
+ }
+
+ if (qp->ibqp.qp_type == IB_QPT_RC || qp->ibqp.qp_type == IB_QPT_UC)
+ wr.wqe.cmd.mod_qp.qkey_dest_qpn =
+ cpu_to_le32(attr->dest_qp_num);
+ else
+ wr.wqe.cmd.mod_qp.qkey_dest_qpn = cpu_to_le32(attr->qkey);
+
+ if (mask & IB_QP_AV) {
+ if (!qp->hdr) {
+ rc = -ENOMEM;
+ goto err_hdr;
+ }
+
+ sport = rdma_get_udp_sport(grh->flow_label,
+ qp->qpid,
+ attr->dest_qp_num);
+
+ rc = ionic_build_hdr(dev, qp->hdr, &attr->ah_attr, sport, true);
+ if (rc)
+ goto err_hdr;
+
+ qp->sgid_index = grh->sgid_index;
+
+ hdr_buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+ if (!hdr_buf) {
+ rc = -ENOMEM;
+ goto err_buf;
+ }
+
+ hdr_len = ib_ud_header_pack(qp->hdr, hdr_buf);
+ hdr_len -= IB_BTH_BYTES;
+ hdr_len -= IB_DETH_BYTES;
+ ibdev_dbg(&dev->ibdev, "roce packet header template\n");
+ print_hex_dump_debug("hdr ", DUMP_PREFIX_OFFSET, 16, 1,
+ hdr_buf, hdr_len, true);
+
+ hdr_dma = dma_map_single(dev->lif_cfg.hwdev, hdr_buf, hdr_len,
+ DMA_TO_DEVICE);
+
+ rc = dma_mapping_error(dev->lif_cfg.hwdev, hdr_dma);
+ if (rc)
+ goto err_dma;
+
+ if (qp->hdr->ipv4_present) {
+ wr.wqe.cmd.mod_qp.tfp_csum_profile =
+ qp->hdr->vlan_present ?
+ IONIC_TFP_CSUM_PROF_ETH_QTAG_IPV4_UDP :
+ IONIC_TFP_CSUM_PROF_ETH_IPV4_UDP;
+ } else {
+ wr.wqe.cmd.mod_qp.tfp_csum_profile =
+ qp->hdr->vlan_present ?
+ IONIC_TFP_CSUM_PROF_ETH_QTAG_IPV6_UDP :
+ IONIC_TFP_CSUM_PROF_ETH_IPV6_UDP;
+ }
+
+ wr.wqe.cmd.mod_qp.ah_id_len =
+ cpu_to_le32(qp->ahid | (hdr_len << 24));
+ wr.wqe.cmd.mod_qp.dma_addr = cpu_to_le64(hdr_dma);
+
+ wr.wqe.cmd.mod_qp.en_pcp = attr->ah_attr.sl;
+ wr.wqe.cmd.mod_qp.ip_dscp = grh->traffic_class >> 2;
+ }
+
+ ionic_admin_post(dev, &wr);
+
+ rc = ionic_admin_wait(dev, &wr, 0);
+
+ if (mask & IB_QP_AV)
+ dma_unmap_single(dev->lif_cfg.hwdev, hdr_dma, hdr_len,
+ DMA_TO_DEVICE);
+err_dma:
+ if (mask & IB_QP_AV)
+ kfree(hdr_buf);
+err_buf:
+err_hdr:
+ return rc;
+}
+
+static int ionic_query_qp_cmd(struct ionic_ibdev *dev,
+ struct ionic_qp *qp,
+ struct ib_qp_attr *attr,
+ int mask)
+{
+ struct ionic_admin_wr wr = {
+ .work = COMPLETION_INITIALIZER_ONSTACK(wr.work),
+ .wqe = {
+ .op = IONIC_V1_ADMIN_QUERY_QP,
+ .len = cpu_to_le16(IONIC_ADMIN_QUERY_QP_IN_V1_LEN),
+ .cmd.query_qp = {
+ .id_ver = cpu_to_le32(qp->qpid),
+ },
+ }
+ };
+ struct ionic_v1_admin_query_qp_sq *query_sqbuf;
+ struct ionic_v1_admin_query_qp_rq *query_rqbuf;
+ dma_addr_t query_sqdma;
+ dma_addr_t query_rqdma;
+ dma_addr_t hdr_dma = 0;
+ void *hdr_buf = NULL;
+ int flags, rc;
+
+ if (dev->lif_cfg.admin_opcodes <= IONIC_V1_ADMIN_QUERY_QP)
+ return -EBADRQC;
+
+ if (qp->has_sq) {
+ bool expdb = !!(qp->sq_cmb & IONIC_CMB_EXPDB);
+
+ attr->cap.max_send_sge =
+ ionic_v1_send_wqe_max_sge(qp->sq.stride_log2,
+ qp->sq_spec,
+ expdb);
+ attr->cap.max_inline_data =
+ ionic_v1_send_wqe_max_data(qp->sq.stride_log2, expdb);
+ }
+
+ if (qp->has_rq) {
+ attr->cap.max_recv_sge =
+ ionic_v1_recv_wqe_max_sge(qp->rq.stride_log2,
+ qp->rq_spec,
+ qp->rq_cmb & IONIC_CMB_EXPDB);
+ }
+
+ query_sqbuf = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ if (!query_sqbuf) {
+ rc = -ENOMEM;
+ goto err_sqbuf;
+ }
+ query_rqbuf = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ if (!query_rqbuf) {
+ rc = -ENOMEM;
+ goto err_rqbuf;
+ }
+
+ query_sqdma = dma_map_single(dev->lif_cfg.hwdev, query_sqbuf, PAGE_SIZE,
+ DMA_FROM_DEVICE);
+ rc = dma_mapping_error(dev->lif_cfg.hwdev, query_sqdma);
+ if (rc)
+ goto err_sqdma;
+
+ query_rqdma = dma_map_single(dev->lif_cfg.hwdev, query_rqbuf, PAGE_SIZE,
+ DMA_FROM_DEVICE);
+ rc = dma_mapping_error(dev->lif_cfg.hwdev, query_rqdma);
+ if (rc)
+ goto err_rqdma;
+
+ if (mask & IB_QP_AV) {
+ hdr_buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+ if (!hdr_buf) {
+ rc = -ENOMEM;
+ goto err_hdrbuf;
+ }
+
+ hdr_dma = dma_map_single(dev->lif_cfg.hwdev, hdr_buf,
+ PAGE_SIZE, DMA_FROM_DEVICE);
+ rc = dma_mapping_error(dev->lif_cfg.hwdev, hdr_dma);
+ if (rc)
+ goto err_hdrdma;
+ }
+
+ wr.wqe.cmd.query_qp.sq_dma_addr = cpu_to_le64(query_sqdma);
+ wr.wqe.cmd.query_qp.rq_dma_addr = cpu_to_le64(query_rqdma);
+ wr.wqe.cmd.query_qp.hdr_dma_addr = cpu_to_le64(hdr_dma);
+ wr.wqe.cmd.query_qp.ah_id = cpu_to_le32(qp->ahid);
+
+ ionic_admin_post(dev, &wr);
+
+ rc = ionic_admin_wait(dev, &wr, 0);
+
+ if (rc)
+ goto err_hdrdma;
+
+ flags = be16_to_cpu(query_sqbuf->access_perms_flags |
+ query_rqbuf->access_perms_flags);
+
+ print_hex_dump_debug("sqbuf ", DUMP_PREFIX_OFFSET, 16, 1,
+ query_sqbuf, sizeof(*query_sqbuf), true);
+ print_hex_dump_debug("rqbuf ", DUMP_PREFIX_OFFSET, 16, 1,
+ query_rqbuf, sizeof(*query_rqbuf), true);
+ ibdev_dbg(&dev->ibdev, "query qp %u state_pmtu %#x flags %#x",
+ qp->qpid, query_rqbuf->state_pmtu, flags);
+
+ attr->qp_state = from_ionic_qp_state(query_rqbuf->state_pmtu >> 4);
+ attr->cur_qp_state = attr->qp_state;
+ attr->path_mtu = (query_rqbuf->state_pmtu & 0xf) - 7;
+ attr->path_mig_state = IB_MIG_MIGRATED;
+ attr->qkey = be32_to_cpu(query_sqbuf->qkey_dest_qpn);
+ attr->rq_psn = be32_to_cpu(query_sqbuf->rq_psn);
+ attr->sq_psn = be32_to_cpu(query_rqbuf->sq_psn);
+ attr->dest_qp_num = attr->qkey;
+ attr->qp_access_flags = from_ionic_qp_flags(flags);
+ attr->pkey_index = 0;
+ attr->alt_pkey_index = 0;
+ attr->en_sqd_async_notify = !!(flags & IONIC_QPF_SQD_NOTIFY);
+ attr->sq_draining = !!(flags & IONIC_QPF_SQ_DRAINING);
+ attr->max_rd_atomic = BIT(query_rqbuf->rrq_depth) - 1;
+ attr->max_dest_rd_atomic = BIT(query_rqbuf->rsq_depth) - 1;
+ attr->min_rnr_timer = query_sqbuf->rnr_timer;
+ attr->port_num = 0;
+ attr->timeout = query_sqbuf->retry_timeout;
+ attr->retry_cnt = query_rqbuf->retry_rnrtry & 0xf;
+ attr->rnr_retry = query_rqbuf->retry_rnrtry >> 4;
+ attr->alt_port_num = 0;
+ attr->alt_timeout = 0;
+ attr->rate_limit = be32_to_cpu(query_sqbuf->rate_limit_kbps);
+
+ if (mask & IB_QP_AV)
+ ionic_set_ah_attr(dev, &attr->ah_attr,
+ qp->hdr, qp->sgid_index);
+
+err_hdrdma:
+ if (mask & IB_QP_AV) {
+ dma_unmap_single(dev->lif_cfg.hwdev, hdr_dma,
+ PAGE_SIZE, DMA_FROM_DEVICE);
+ kfree(hdr_buf);
+ }
+err_hdrbuf:
+ dma_unmap_single(dev->lif_cfg.hwdev, query_rqdma, sizeof(*query_rqbuf),
+ DMA_FROM_DEVICE);
+err_rqdma:
+ dma_unmap_single(dev->lif_cfg.hwdev, query_sqdma, sizeof(*query_sqbuf),
+ DMA_FROM_DEVICE);
+err_sqdma:
+ kfree(query_rqbuf);
+err_rqbuf:
+ kfree(query_sqbuf);
+err_sqbuf:
+ return rc;
+}
+
+static int ionic_destroy_qp_cmd(struct ionic_ibdev *dev, u32 qpid)
+{
+ struct ionic_admin_wr wr = {
+ .work = COMPLETION_INITIALIZER_ONSTACK(wr.work),
+ .wqe = {
+ .op = IONIC_V1_ADMIN_DESTROY_QP,
+ .len = cpu_to_le16(IONIC_ADMIN_DESTROY_QP_IN_V1_LEN),
+ .cmd.destroy_qp = {
+ .qp_id = cpu_to_le32(qpid),
+ },
+ }
+ };
+
+ if (dev->lif_cfg.admin_opcodes <= IONIC_V1_ADMIN_DESTROY_QP)
+ return -EBADRQC;
+
+ ionic_admin_post(dev, &wr);
+
+ return ionic_admin_wait(dev, &wr, IONIC_ADMIN_F_TEARDOWN);
+}
+
+static bool ionic_expdb_wqe_size_supported(struct ionic_ibdev *dev,
+ uint32_t wqe_size)
+{
+ switch (wqe_size) {
+ case 64: return dev->lif_cfg.expdb_mask & IONIC_EXPDB_64;
+ case 128: return dev->lif_cfg.expdb_mask & IONIC_EXPDB_128;
+ case 256: return dev->lif_cfg.expdb_mask & IONIC_EXPDB_256;
+ case 512: return dev->lif_cfg.expdb_mask & IONIC_EXPDB_512;
+ }
+
+ return false;
+}
+
+static void ionic_qp_sq_init_cmb(struct ionic_ibdev *dev,
+ struct ionic_qp *qp,
+ struct ib_udata *udata,
+ int max_data)
+{
+ u8 expdb_stride_log2 = 0;
+ bool expdb;
+ int rc;
+
+ if (!(qp->sq_cmb & IONIC_CMB_ENABLE))
+ goto not_in_cmb;
+
+ if (qp->sq_cmb & ~IONIC_CMB_SUPPORTED) {
+ if (qp->sq_cmb & IONIC_CMB_REQUIRE)
+ goto not_in_cmb;
+
+ qp->sq_cmb &= IONIC_CMB_SUPPORTED;
+ }
+
+ if ((qp->sq_cmb & IONIC_CMB_EXPDB) && !dev->lif_cfg.sq_expdb) {
+ if (qp->sq_cmb & IONIC_CMB_REQUIRE)
+ goto not_in_cmb;
+
+ qp->sq_cmb &= ~IONIC_CMB_EXPDB;
+ }
+
+ qp->sq_cmb_order = order_base_2(qp->sq.size / PAGE_SIZE);
+
+ if (qp->sq_cmb_order >= IONIC_SQCMB_ORDER)
+ goto not_in_cmb;
+
+ if (qp->sq_cmb & IONIC_CMB_EXPDB)
+ expdb_stride_log2 = qp->sq.stride_log2;
+
+ rc = ionic_get_cmb(dev->lif_cfg.lif, &qp->sq_cmb_pgid,
+ &qp->sq_cmb_addr, qp->sq_cmb_order,
+ expdb_stride_log2, &expdb);
+ if (rc)
+ goto not_in_cmb;
+
+ if ((qp->sq_cmb & IONIC_CMB_EXPDB) && !expdb) {
+ if (qp->sq_cmb & IONIC_CMB_REQUIRE)
+ goto err_map;
+
+ qp->sq_cmb &= ~IONIC_CMB_EXPDB;
+ }
+
+ return;
+
+err_map:
+ ionic_put_cmb(dev->lif_cfg.lif, qp->sq_cmb_pgid, qp->sq_cmb_order);
+not_in_cmb:
+ if (qp->sq_cmb & IONIC_CMB_REQUIRE)
+ ibdev_dbg(&dev->ibdev, "could not place sq in cmb as required\n");
+
+ qp->sq_cmb = 0;
+ qp->sq_cmb_order = IONIC_RES_INVALID;
+ qp->sq_cmb_pgid = 0;
+ qp->sq_cmb_addr = 0;
+}
+
+static void ionic_qp_sq_destroy_cmb(struct ionic_ibdev *dev,
+ struct ionic_ctx *ctx,
+ struct ionic_qp *qp)
+{
+ if (!(qp->sq_cmb & IONIC_CMB_ENABLE))
+ return;
+
+ if (ctx)
+ rdma_user_mmap_entry_remove(qp->mmap_sq_cmb);
+
+ ionic_put_cmb(dev->lif_cfg.lif, qp->sq_cmb_pgid, qp->sq_cmb_order);
+}
+
+static int ionic_qp_sq_init(struct ionic_ibdev *dev, struct ionic_ctx *ctx,
+ struct ionic_qp *qp, struct ionic_qdesc *sq,
+ struct ionic_tbl_buf *buf, int max_wr, int max_sge,
+ int max_data, int sq_spec, struct ib_udata *udata)
+{
+ u32 wqe_size;
+ int rc = 0;
+
+ qp->sq_msn_prod = 0;
+ qp->sq_msn_cons = 0;
+
+ if (!qp->has_sq) {
+ if (buf) {
+ buf->tbl_buf = NULL;
+ buf->tbl_limit = 0;
+ buf->tbl_pages = 0;
+ }
+ if (udata)
+ rc = ionic_validate_qdesc_zero(sq);
+
+ return rc;
+ }
+
+ rc = -EINVAL;
+
+ if (max_wr < 0 || max_wr > 0xffff)
+ goto err_sq;
+
+ if (max_sge < 1)
+ goto err_sq;
+
+ if (max_sge > min(ionic_v1_send_wqe_max_sge(dev->lif_cfg.max_stride, 0,
+ qp->sq_cmb &
+ IONIC_CMB_EXPDB),
+ IONIC_SPEC_HIGH))
+ goto err_sq;
+
+ if (max_data < 0)
+ goto err_sq;
+
+ if (max_data > ionic_v1_send_wqe_max_data(dev->lif_cfg.max_stride,
+ qp->sq_cmb & IONIC_CMB_EXPDB))
+ goto err_sq;
+
+ if (udata) {
+ rc = ionic_validate_qdesc(sq);
+ if (rc)
+ goto err_sq;
+
+ qp->sq_spec = sq_spec;
+
+ qp->sq.ptr = NULL;
+ qp->sq.size = sq->size;
+ qp->sq.mask = sq->mask;
+ qp->sq.depth_log2 = sq->depth_log2;
+ qp->sq.stride_log2 = sq->stride_log2;
+
+ qp->sq_meta = NULL;
+ qp->sq_msn_idx = NULL;
+
+ qp->sq_umem = ib_umem_get(&dev->ibdev, sq->addr, sq->size, 0);
+ if (IS_ERR(qp->sq_umem)) {
+ rc = PTR_ERR(qp->sq_umem);
+ goto err_sq;
+ }
+ } else {
+ qp->sq_umem = NULL;
+
+ qp->sq_spec = ionic_v1_use_spec_sge(max_sge, sq_spec);
+ if (sq_spec && !qp->sq_spec)
+ ibdev_dbg(&dev->ibdev,
+ "init sq: max_sge %u disables spec\n",
+ max_sge);
+
+ if (qp->sq_cmb & IONIC_CMB_EXPDB) {
+ wqe_size = ionic_v1_send_wqe_min_size(max_sge, max_data,
+ qp->sq_spec,
+ true);
+
+ if (!ionic_expdb_wqe_size_supported(dev, wqe_size))
+ qp->sq_cmb &= ~IONIC_CMB_EXPDB;
+ }
+
+ if (!(qp->sq_cmb & IONIC_CMB_EXPDB))
+ wqe_size = ionic_v1_send_wqe_min_size(max_sge, max_data,
+ qp->sq_spec,
+ false);
+
+ rc = ionic_queue_init(&qp->sq, dev->lif_cfg.hwdev,
+ max_wr, wqe_size);
+ if (rc)
+ goto err_sq;
+
+ ionic_queue_dbell_init(&qp->sq, qp->qpid);
+
+ qp->sq_meta = kmalloc_array((u32)qp->sq.mask + 1,
+ sizeof(*qp->sq_meta),
+ GFP_KERNEL);
+ if (!qp->sq_meta) {
+ rc = -ENOMEM;
+ goto err_sq_meta;
+ }
+
+ qp->sq_msn_idx = kmalloc_array((u32)qp->sq.mask + 1,
+ sizeof(*qp->sq_msn_idx),
+ GFP_KERNEL);
+ if (!qp->sq_msn_idx) {
+ rc = -ENOMEM;
+ goto err_sq_msn;
+ }
+ }
+
+ ionic_qp_sq_init_cmb(dev, qp, udata, max_data);
+
+ if (qp->sq_cmb & IONIC_CMB_ENABLE)
+ rc = ionic_pgtbl_init(dev, buf, NULL,
+ (u64)qp->sq_cmb_pgid << PAGE_SHIFT,
+ 1, PAGE_SIZE);
+ else
+ rc = ionic_pgtbl_init(dev, buf,
+ qp->sq_umem, qp->sq.dma, 1, PAGE_SIZE);
+ if (rc)
+ goto err_sq_tbl;
+
+ return 0;
+
+err_sq_tbl:
+ ionic_qp_sq_destroy_cmb(dev, ctx, qp);
+ kfree(qp->sq_msn_idx);
+err_sq_msn:
+ kfree(qp->sq_meta);
+err_sq_meta:
+ if (qp->sq_umem)
+ ib_umem_release(qp->sq_umem);
+ else
+ ionic_queue_destroy(&qp->sq, dev->lif_cfg.hwdev);
+err_sq:
+ return rc;
+}
+
+static void ionic_qp_sq_destroy(struct ionic_ibdev *dev,
+ struct ionic_ctx *ctx,
+ struct ionic_qp *qp)
+{
+ if (!qp->has_sq)
+ return;
+
+ ionic_qp_sq_destroy_cmb(dev, ctx, qp);
+
+ kfree(qp->sq_msn_idx);
+ kfree(qp->sq_meta);
+
+ if (qp->sq_umem)
+ ib_umem_release(qp->sq_umem);
+ else
+ ionic_queue_destroy(&qp->sq, dev->lif_cfg.hwdev);
+}
+
+static void ionic_qp_rq_init_cmb(struct ionic_ibdev *dev,
+ struct ionic_qp *qp,
+ struct ib_udata *udata)
+{
+ u8 expdb_stride_log2 = 0;
+ bool expdb;
+ int rc;
+
+ if (!(qp->rq_cmb & IONIC_CMB_ENABLE))
+ goto not_in_cmb;
+
+ if (qp->rq_cmb & ~IONIC_CMB_SUPPORTED) {
+ if (qp->rq_cmb & IONIC_CMB_REQUIRE)
+ goto not_in_cmb;
+
+ qp->rq_cmb &= IONIC_CMB_SUPPORTED;
+ }
+
+ if ((qp->rq_cmb & IONIC_CMB_EXPDB) && !dev->lif_cfg.rq_expdb) {
+ if (qp->rq_cmb & IONIC_CMB_REQUIRE)
+ goto not_in_cmb;
+
+ qp->rq_cmb &= ~IONIC_CMB_EXPDB;
+ }
+
+ qp->rq_cmb_order = order_base_2(qp->rq.size / PAGE_SIZE);
+
+ if (qp->rq_cmb_order >= IONIC_RQCMB_ORDER)
+ goto not_in_cmb;
+
+ if (qp->rq_cmb & IONIC_CMB_EXPDB)
+ expdb_stride_log2 = qp->rq.stride_log2;
+
+ rc = ionic_get_cmb(dev->lif_cfg.lif, &qp->rq_cmb_pgid,
+ &qp->rq_cmb_addr, qp->rq_cmb_order,
+ expdb_stride_log2, &expdb);
+ if (rc)
+ goto not_in_cmb;
+
+ if ((qp->rq_cmb & IONIC_CMB_EXPDB) && !expdb) {
+ if (qp->rq_cmb & IONIC_CMB_REQUIRE)
+ goto err_map;
+
+ qp->rq_cmb &= ~IONIC_CMB_EXPDB;
+ }
+
+ return;
+
+err_map:
+ ionic_put_cmb(dev->lif_cfg.lif, qp->rq_cmb_pgid, qp->rq_cmb_order);
+not_in_cmb:
+ if (qp->rq_cmb & IONIC_CMB_REQUIRE)
+ ibdev_dbg(&dev->ibdev, "could not place rq in cmb as required\n");
+
+ qp->rq_cmb = 0;
+ qp->rq_cmb_order = IONIC_RES_INVALID;
+ qp->rq_cmb_pgid = 0;
+ qp->rq_cmb_addr = 0;
+}
+
+static void ionic_qp_rq_destroy_cmb(struct ionic_ibdev *dev,
+ struct ionic_ctx *ctx,
+ struct ionic_qp *qp)
+{
+ if (!(qp->rq_cmb & IONIC_CMB_ENABLE))
+ return;
+
+ if (ctx)
+ rdma_user_mmap_entry_remove(qp->mmap_rq_cmb);
+
+ ionic_put_cmb(dev->lif_cfg.lif, qp->rq_cmb_pgid, qp->rq_cmb_order);
+}
+
+static int ionic_qp_rq_init(struct ionic_ibdev *dev, struct ionic_ctx *ctx,
+ struct ionic_qp *qp, struct ionic_qdesc *rq,
+ struct ionic_tbl_buf *buf, int max_wr, int max_sge,
+ int rq_spec, struct ib_udata *udata)
+{
+ int rc = 0, i;
+ u32 wqe_size;
+
+ if (!qp->has_rq) {
+ if (buf) {
+ buf->tbl_buf = NULL;
+ buf->tbl_limit = 0;
+ buf->tbl_pages = 0;
+ }
+ if (udata)
+ rc = ionic_validate_qdesc_zero(rq);
+
+ return rc;
+ }
+
+ rc = -EINVAL;
+
+ if (max_wr < 0 || max_wr > 0xffff)
+ goto err_rq;
+
+ if (max_sge < 1)
+ goto err_rq;
+
+ if (max_sge > min(ionic_v1_recv_wqe_max_sge(dev->lif_cfg.max_stride, 0, false),
+ IONIC_SPEC_HIGH))
+ goto err_rq;
+
+ if (udata) {
+ rc = ionic_validate_qdesc(rq);
+ if (rc)
+ goto err_rq;
+
+ qp->rq_spec = rq_spec;
+
+ qp->rq.ptr = NULL;
+ qp->rq.size = rq->size;
+ qp->rq.mask = rq->mask;
+ qp->rq.depth_log2 = rq->depth_log2;
+ qp->rq.stride_log2 = rq->stride_log2;
+
+ qp->rq_meta = NULL;
+
+ qp->rq_umem = ib_umem_get(&dev->ibdev, rq->addr, rq->size, 0);
+ if (IS_ERR(qp->rq_umem)) {
+ rc = PTR_ERR(qp->rq_umem);
+ goto err_rq;
+ }
+ } else {
+ qp->rq_umem = NULL;
+
+ qp->rq_spec = ionic_v1_use_spec_sge(max_sge, rq_spec);
+ if (rq_spec && !qp->rq_spec)
+ ibdev_dbg(&dev->ibdev,
+ "init rq: max_sge %u disables spec\n",
+ max_sge);
+
+ if (qp->rq_cmb & IONIC_CMB_EXPDB) {
+ wqe_size = ionic_v1_recv_wqe_min_size(max_sge,
+ qp->rq_spec,
+ true);
+
+ if (!ionic_expdb_wqe_size_supported(dev, wqe_size))
+ qp->rq_cmb &= ~IONIC_CMB_EXPDB;
+ }
+
+ if (!(qp->rq_cmb & IONIC_CMB_EXPDB))
+ wqe_size = ionic_v1_recv_wqe_min_size(max_sge,
+ qp->rq_spec,
+ false);
+
+ rc = ionic_queue_init(&qp->rq, dev->lif_cfg.hwdev,
+ max_wr, wqe_size);
+ if (rc)
+ goto err_rq;
+
+ ionic_queue_dbell_init(&qp->rq, qp->qpid);
+
+ qp->rq_meta = kmalloc_array((u32)qp->rq.mask + 1,
+ sizeof(*qp->rq_meta),
+ GFP_KERNEL);
+ if (!qp->rq_meta) {
+ rc = -ENOMEM;
+ goto err_rq_meta;
+ }
+
+ for (i = 0; i < qp->rq.mask; ++i)
+ qp->rq_meta[i].next = &qp->rq_meta[i + 1];
+ qp->rq_meta[i].next = IONIC_META_LAST;
+ qp->rq_meta_head = &qp->rq_meta[0];
+ }
+
+ ionic_qp_rq_init_cmb(dev, qp, udata);
+
+ if (qp->rq_cmb & IONIC_CMB_ENABLE)
+ rc = ionic_pgtbl_init(dev, buf, NULL,
+ (u64)qp->rq_cmb_pgid << PAGE_SHIFT,
+ 1, PAGE_SIZE);
+ else
+ rc = ionic_pgtbl_init(dev, buf,
+ qp->rq_umem, qp->rq.dma, 1, PAGE_SIZE);
+ if (rc)
+ goto err_rq_tbl;
+
+ return 0;
+
+err_rq_tbl:
+ ionic_qp_rq_destroy_cmb(dev, ctx, qp);
+ kfree(qp->rq_meta);
+err_rq_meta:
+ if (qp->rq_umem)
+ ib_umem_release(qp->rq_umem);
+ else
+ ionic_queue_destroy(&qp->rq, dev->lif_cfg.hwdev);
+err_rq:
+
+ return rc;
+}
+
+static void ionic_qp_rq_destroy(struct ionic_ibdev *dev,
+ struct ionic_ctx *ctx,
+ struct ionic_qp *qp)
+{
+ if (!qp->has_rq)
+ return;
+
+ ionic_qp_rq_destroy_cmb(dev, ctx, qp);
+
+ kfree(qp->rq_meta);
+
+ if (qp->rq_umem)
+ ib_umem_release(qp->rq_umem);
+ else
+ ionic_queue_destroy(&qp->rq, dev->lif_cfg.hwdev);
+}
+
+int ionic_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attr,
+ struct ib_udata *udata)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibqp->device);
+ struct ionic_tbl_buf sq_buf = {}, rq_buf = {};
+ struct ionic_pd *pd = to_ionic_pd(ibqp->pd);
+ struct ionic_qp *qp = to_ionic_qp(ibqp);
+ struct ionic_ctx *ctx =
+ rdma_udata_to_drv_context(udata, struct ionic_ctx, ibctx);
+ struct ionic_qp_resp resp = {};
+ struct ionic_qp_req req = {};
+ struct ionic_cq *cq;
+ u8 udma_mask;
+ void *entry;
+ int rc;
+
+ if (udata) {
+ rc = ib_copy_from_udata(&req, udata, sizeof(req));
+ if (rc)
+ goto err_req;
+ } else {
+ req.sq_spec = IONIC_SPEC_HIGH;
+ req.rq_spec = IONIC_SPEC_HIGH;
+ }
+
+ if (attr->qp_type == IB_QPT_SMI || attr->qp_type > IB_QPT_UD) {
+ rc = -EOPNOTSUPP;
+ goto err_qp;
+ }
+
+ qp->state = IB_QPS_RESET;
+
+ INIT_LIST_HEAD(&qp->cq_poll_sq);
+ INIT_LIST_HEAD(&qp->cq_flush_sq);
+ INIT_LIST_HEAD(&qp->cq_flush_rq);
+
+ spin_lock_init(&qp->sq_lock);
+ spin_lock_init(&qp->rq_lock);
+
+ qp->has_sq = 1;
+ qp->has_rq = 1;
+
+ if (attr->qp_type == IB_QPT_GSI) {
+ rc = ionic_get_gsi_qpid(dev, &qp->qpid);
+ } else {
+ udma_mask = BIT(dev->lif_cfg.udma_count) - 1;
+
+ if (qp->has_sq)
+ udma_mask &= to_ionic_vcq(attr->send_cq)->udma_mask;
+
+ if (qp->has_rq)
+ udma_mask &= to_ionic_vcq(attr->recv_cq)->udma_mask;
+
+ if (udata && req.udma_mask)
+ udma_mask &= req.udma_mask;
+
+ if (!udma_mask) {
+ rc = -EINVAL;
+ goto err_qpid;
+ }
+
+ rc = ionic_get_qpid(dev, &qp->qpid, &qp->udma_idx, udma_mask);
+ }
+ if (rc)
+ goto err_qpid;
+
+ qp->sig_all = attr->sq_sig_type == IB_SIGNAL_ALL_WR;
+ qp->has_ah = attr->qp_type == IB_QPT_RC;
+
+ if (qp->has_ah) {
+ qp->hdr = kzalloc(sizeof(*qp->hdr), GFP_KERNEL);
+ if (!qp->hdr) {
+ rc = -ENOMEM;
+ goto err_ah_alloc;
+ }
+
+ rc = ionic_get_ahid(dev, &qp->ahid);
+ if (rc)
+ goto err_ahid;
+ }
+
+ if (udata) {
+ if (req.rq_cmb & IONIC_CMB_ENABLE)
+ qp->rq_cmb = req.rq_cmb;
+
+ if (req.sq_cmb & IONIC_CMB_ENABLE)
+ qp->sq_cmb = req.sq_cmb;
+ }
+
+ rc = ionic_qp_sq_init(dev, ctx, qp, &req.sq, &sq_buf,
+ attr->cap.max_send_wr, attr->cap.max_send_sge,
+ attr->cap.max_inline_data, req.sq_spec, udata);
+ if (rc)
+ goto err_sq;
+
+ rc = ionic_qp_rq_init(dev, ctx, qp, &req.rq, &rq_buf,
+ attr->cap.max_recv_wr, attr->cap.max_recv_sge,
+ req.rq_spec, udata);
+ if (rc)
+ goto err_rq;
+
+ rc = ionic_create_qp_cmd(dev, pd,
+ to_ionic_vcq_cq(attr->send_cq, qp->udma_idx),
+ to_ionic_vcq_cq(attr->recv_cq, qp->udma_idx),
+ qp, &sq_buf, &rq_buf, attr);
+ if (rc)
+ goto err_cmd;
+
+ if (udata) {
+ resp.qpid = qp->qpid;
+ resp.udma_idx = qp->udma_idx;
+
+ if (qp->sq_cmb & IONIC_CMB_ENABLE) {
+ bool wc;
+
+ if ((qp->sq_cmb & (IONIC_CMB_WC | IONIC_CMB_UC)) ==
+ (IONIC_CMB_WC | IONIC_CMB_UC)) {
+ ibdev_dbg(&dev->ibdev,
+ "Both sq_cmb flags IONIC_CMB_WC and IONIC_CMB_UC are set, using default driver mapping\n");
+ qp->sq_cmb &= ~(IONIC_CMB_WC | IONIC_CMB_UC);
+ }
+
+ wc = (qp->sq_cmb & (IONIC_CMB_WC | IONIC_CMB_UC))
+ != IONIC_CMB_UC;
+
+ /* let userspace know the mapping */
+ if (wc)
+ qp->sq_cmb |= IONIC_CMB_WC;
+ else
+ qp->sq_cmb |= IONIC_CMB_UC;
+
+ qp->mmap_sq_cmb =
+ ionic_mmap_entry_insert(ctx,
+ qp->sq.size,
+ PHYS_PFN(qp->sq_cmb_addr),
+ wc ? IONIC_MMAP_WC : 0,
+ &resp.sq_cmb_offset);
+ if (!qp->mmap_sq_cmb)
+ goto err_mmap_sq;
+
+ resp.sq_cmb = qp->sq_cmb;
+ }
+
+ if (qp->rq_cmb & IONIC_CMB_ENABLE) {
+ bool wc;
+
+ if ((qp->rq_cmb & (IONIC_CMB_WC | IONIC_CMB_UC)) ==
+ (IONIC_CMB_WC | IONIC_CMB_UC)) {
+ ibdev_dbg(&dev->ibdev,
+ "Both rq_cmb flags IONIC_CMB_WC and IONIC_CMB_UC are set, using default driver mapping\n");
+ qp->rq_cmb &= ~(IONIC_CMB_WC | IONIC_CMB_UC);
+ }
+
+ if (qp->rq_cmb & IONIC_CMB_EXPDB)
+ wc = (qp->rq_cmb & (IONIC_CMB_WC | IONIC_CMB_UC))
+ == IONIC_CMB_WC;
+ else
+ wc = (qp->rq_cmb & (IONIC_CMB_WC | IONIC_CMB_UC))
+ != IONIC_CMB_UC;
+
+ /* let userspace know the mapping */
+ if (wc)
+ qp->rq_cmb |= IONIC_CMB_WC;
+ else
+ qp->rq_cmb |= IONIC_CMB_UC;
+
+ qp->mmap_rq_cmb =
+ ionic_mmap_entry_insert(ctx,
+ qp->rq.size,
+ PHYS_PFN(qp->rq_cmb_addr),
+ wc ? IONIC_MMAP_WC : 0,
+ &resp.rq_cmb_offset);
+ if (!qp->mmap_rq_cmb)
+ goto err_mmap_rq;
+
+ resp.rq_cmb = qp->rq_cmb;
+ }
+
+ rc = ib_copy_to_udata(udata, &resp, sizeof(resp));
+ if (rc)
+ goto err_resp;
+ }
+
+ ionic_pgtbl_unbuf(dev, &rq_buf);
+ ionic_pgtbl_unbuf(dev, &sq_buf);
+
+ qp->ibqp.qp_num = qp->qpid;
+
+ init_completion(&qp->qp_rel_comp);
+ kref_init(&qp->qp_kref);
+
+ entry = xa_store_irq(&dev->qp_tbl, qp->qpid, qp, GFP_KERNEL);
+ if (entry) {
+ if (!xa_is_err(entry))
+ rc = -EINVAL;
+ else
+ rc = xa_err(entry);
+
+ goto err_xa;
+ }
+
+ if (qp->has_sq) {
+ cq = to_ionic_vcq_cq(attr->send_cq, qp->udma_idx);
+
+ attr->cap.max_send_wr = qp->sq.mask;
+ attr->cap.max_send_sge =
+ ionic_v1_send_wqe_max_sge(qp->sq.stride_log2,
+ qp->sq_spec,
+ qp->sq_cmb & IONIC_CMB_EXPDB);
+ attr->cap.max_inline_data =
+ ionic_v1_send_wqe_max_data(qp->sq.stride_log2,
+ qp->sq_cmb &
+ IONIC_CMB_EXPDB);
+ qp->sq_cqid = cq->cqid;
+ }
+
+ if (qp->has_rq) {
+ cq = to_ionic_vcq_cq(attr->recv_cq, qp->udma_idx);
+
+ attr->cap.max_recv_wr = qp->rq.mask;
+ attr->cap.max_recv_sge =
+ ionic_v1_recv_wqe_max_sge(qp->rq.stride_log2,
+ qp->rq_spec,
+ qp->rq_cmb & IONIC_CMB_EXPDB);
+ qp->rq_cqid = cq->cqid;
+ }
+
+ return 0;
+
+err_xa:
+err_resp:
+ if (udata && (qp->rq_cmb & IONIC_CMB_ENABLE))
+ rdma_user_mmap_entry_remove(qp->mmap_rq_cmb);
+err_mmap_rq:
+ if (udata && (qp->sq_cmb & IONIC_CMB_ENABLE))
+ rdma_user_mmap_entry_remove(qp->mmap_sq_cmb);
+err_mmap_sq:
+ ionic_destroy_qp_cmd(dev, qp->qpid);
+err_cmd:
+ ionic_pgtbl_unbuf(dev, &rq_buf);
+ ionic_qp_rq_destroy(dev, ctx, qp);
+err_rq:
+ ionic_pgtbl_unbuf(dev, &sq_buf);
+ ionic_qp_sq_destroy(dev, ctx, qp);
+err_sq:
+ if (qp->has_ah)
+ ionic_put_ahid(dev, qp->ahid);
+err_ahid:
+ kfree(qp->hdr);
+err_ah_alloc:
+ ionic_put_qpid(dev, qp->qpid);
+err_qpid:
+err_qp:
+err_req:
+ return rc;
+}
+
+void ionic_notify_flush_cq(struct ionic_cq *cq)
+{
+ if (cq->flush && cq->vcq->ibcq.comp_handler)
+ cq->vcq->ibcq.comp_handler(&cq->vcq->ibcq,
+ cq->vcq->ibcq.cq_context);
+}
+
+static void ionic_notify_qp_cqs(struct ionic_ibdev *dev, struct ionic_qp *qp)
+{
+ if (qp->ibqp.send_cq)
+ ionic_notify_flush_cq(to_ionic_vcq_cq(qp->ibqp.send_cq,
+ qp->udma_idx));
+ if (qp->ibqp.recv_cq && qp->ibqp.recv_cq != qp->ibqp.send_cq)
+ ionic_notify_flush_cq(to_ionic_vcq_cq(qp->ibqp.recv_cq,
+ qp->udma_idx));
+}
+
+void ionic_flush_qp(struct ionic_ibdev *dev, struct ionic_qp *qp)
+{
+ unsigned long irqflags;
+ struct ionic_cq *cq;
+
+ if (qp->ibqp.send_cq) {
+ cq = to_ionic_vcq_cq(qp->ibqp.send_cq, qp->udma_idx);
+
+ /* Hold the CQ lock and QP sq_lock to set up flush */
+ spin_lock_irqsave(&cq->lock, irqflags);
+ spin_lock(&qp->sq_lock);
+ qp->sq_flush = true;
+ if (!ionic_queue_empty(&qp->sq)) {
+ cq->flush = true;
+ list_move_tail(&qp->cq_flush_sq, &cq->flush_sq);
+ }
+ spin_unlock(&qp->sq_lock);
+ spin_unlock_irqrestore(&cq->lock, irqflags);
+ }
+
+ if (qp->ibqp.recv_cq) {
+ cq = to_ionic_vcq_cq(qp->ibqp.recv_cq, qp->udma_idx);
+
+ /* Hold the CQ lock and QP rq_lock to set up flush */
+ spin_lock_irqsave(&cq->lock, irqflags);
+ spin_lock(&qp->rq_lock);
+ qp->rq_flush = true;
+ if (!ionic_queue_empty(&qp->rq)) {
+ cq->flush = true;
+ list_move_tail(&qp->cq_flush_rq, &cq->flush_rq);
+ }
+ spin_unlock(&qp->rq_lock);
+ spin_unlock_irqrestore(&cq->lock, irqflags);
+ }
+}
+
+static void ionic_clean_cq(struct ionic_cq *cq, u32 qpid)
+{
+ struct ionic_v1_cqe *qcqe;
+ int prod, qtf, qid, type;
+ bool color;
+
+ if (!cq->q.ptr)
+ return;
+
+ color = cq->color;
+ prod = cq->q.prod;
+ qcqe = ionic_queue_at(&cq->q, prod);
+
+ while (color == ionic_v1_cqe_color(qcqe)) {
+ qtf = ionic_v1_cqe_qtf(qcqe);
+ qid = ionic_v1_cqe_qtf_qid(qtf);
+ type = ionic_v1_cqe_qtf_type(qtf);
+
+ if (qid == qpid && type != IONIC_V1_CQE_TYPE_ADMIN)
+ ionic_v1_cqe_clean(qcqe);
+
+ prod = ionic_queue_next(&cq->q, prod);
+ qcqe = ionic_queue_at(&cq->q, prod);
+ color = ionic_color_wrap(prod, color);
+ }
+}
+
+static void ionic_reset_qp(struct ionic_ibdev *dev, struct ionic_qp *qp)
+{
+ unsigned long irqflags;
+ struct ionic_cq *cq;
+ int i;
+
+ local_irq_save(irqflags);
+
+ if (qp->ibqp.send_cq) {
+ cq = to_ionic_vcq_cq(qp->ibqp.send_cq, qp->udma_idx);
+ spin_lock(&cq->lock);
+ ionic_clean_cq(cq, qp->qpid);
+ spin_unlock(&cq->lock);
+ }
+
+ if (qp->ibqp.recv_cq) {
+ cq = to_ionic_vcq_cq(qp->ibqp.recv_cq, qp->udma_idx);
+ spin_lock(&cq->lock);
+ ionic_clean_cq(cq, qp->qpid);
+ spin_unlock(&cq->lock);
+ }
+
+ if (qp->has_sq) {
+ spin_lock(&qp->sq_lock);
+ qp->sq_flush = false;
+ qp->sq_flush_rcvd = false;
+ qp->sq_msn_prod = 0;
+ qp->sq_msn_cons = 0;
+ qp->sq.prod = 0;
+ qp->sq.cons = 0;
+ spin_unlock(&qp->sq_lock);
+ }
+
+ if (qp->has_rq) {
+ spin_lock(&qp->rq_lock);
+ qp->rq_flush = false;
+ qp->rq.prod = 0;
+ qp->rq.cons = 0;
+ if (qp->rq_meta) {
+ for (i = 0; i < qp->rq.mask; ++i)
+ qp->rq_meta[i].next = &qp->rq_meta[i + 1];
+ qp->rq_meta[i].next = IONIC_META_LAST;
+ }
+ qp->rq_meta_head = &qp->rq_meta[0];
+ spin_unlock(&qp->rq_lock);
+ }
+
+ local_irq_restore(irqflags);
+}
+
+static bool ionic_qp_cur_state_is_ok(enum ib_qp_state q_state,
+ enum ib_qp_state attr_state)
+{
+ if (q_state == attr_state)
+ return true;
+
+ if (attr_state == IB_QPS_ERR)
+ return true;
+
+ if (attr_state == IB_QPS_SQE)
+ return q_state == IB_QPS_RTS || q_state == IB_QPS_SQD;
+
+ return false;
+}
+
+static int ionic_check_modify_qp(struct ionic_qp *qp, struct ib_qp_attr *attr,
+ int mask)
+{
+ enum ib_qp_state cur_state = (mask & IB_QP_CUR_STATE) ?
+ attr->cur_qp_state : qp->state;
+ enum ib_qp_state next_state = (mask & IB_QP_STATE) ?
+ attr->qp_state : cur_state;
+
+ if ((mask & IB_QP_CUR_STATE) &&
+ !ionic_qp_cur_state_is_ok(qp->state, attr->cur_qp_state))
+ return -EINVAL;
+
+ if (!ib_modify_qp_is_ok(cur_state, next_state, qp->ibqp.qp_type, mask))
+ return -EINVAL;
+
+ /* unprivileged qp not allowed privileged qkey */
+ if ((mask & IB_QP_QKEY) && (attr->qkey & 0x80000000) &&
+ qp->ibqp.uobject)
+ return -EPERM;
+
+ return 0;
+}
+
+int ionic_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int mask,
+ struct ib_udata *udata)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibqp->device);
+ struct ionic_pd *pd = to_ionic_pd(ibqp->pd);
+ struct ionic_qp *qp = to_ionic_qp(ibqp);
+ int rc;
+
+ rc = ionic_check_modify_qp(qp, attr, mask);
+ if (rc)
+ return rc;
+
+ if (mask & IB_QP_CAP)
+ return -EINVAL;
+
+ rc = ionic_modify_qp_cmd(dev, pd, qp, attr, mask);
+ if (rc)
+ return rc;
+
+ if (mask & IB_QP_STATE) {
+ qp->state = attr->qp_state;
+
+ if (attr->qp_state == IB_QPS_ERR) {
+ ionic_flush_qp(dev, qp);
+ ionic_notify_qp_cqs(dev, qp);
+ } else if (attr->qp_state == IB_QPS_RESET) {
+ ionic_reset_qp(dev, qp);
+ }
+ }
+
+ return 0;
+}
+
+int ionic_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
+ int mask, struct ib_qp_init_attr *init_attr)
+{
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibqp->device);
+ struct ionic_qp *qp = to_ionic_qp(ibqp);
+ int rc;
+
+ memset(attr, 0, sizeof(*attr));
+ memset(init_attr, 0, sizeof(*init_attr));
+
+ rc = ionic_query_qp_cmd(dev, qp, attr, mask);
+ if (rc)
+ goto err_cmd;
+
+ if (qp->has_sq)
+ attr->cap.max_send_wr = qp->sq.mask;
+
+ if (qp->has_rq)
+ attr->cap.max_recv_wr = qp->rq.mask;
+
+ init_attr->event_handler = ibqp->event_handler;
+ init_attr->qp_context = ibqp->qp_context;
+ init_attr->send_cq = ibqp->send_cq;
+ init_attr->recv_cq = ibqp->recv_cq;
+ init_attr->srq = ibqp->srq;
+ init_attr->xrcd = ibqp->xrcd;
+ init_attr->cap = attr->cap;
+ init_attr->sq_sig_type = qp->sig_all ?
+ IB_SIGNAL_ALL_WR : IB_SIGNAL_REQ_WR;
+ init_attr->qp_type = ibqp->qp_type;
+ init_attr->create_flags = 0;
+ init_attr->port_num = 0;
+ init_attr->rwq_ind_tbl = ibqp->rwq_ind_tbl;
+ init_attr->source_qpn = 0;
+
+err_cmd:
+ return rc;
+}
+
+int ionic_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata)
+{
+ struct ionic_ctx *ctx =
+ rdma_udata_to_drv_context(udata, struct ionic_ctx, ibctx);
+ struct ionic_ibdev *dev = to_ionic_ibdev(ibqp->device);
+ struct ionic_qp *qp = to_ionic_qp(ibqp);
+ unsigned long irqflags;
+ struct ionic_cq *cq;
+ int rc;
+
+ rc = ionic_destroy_qp_cmd(dev, qp->qpid);
+ if (rc)
+ return rc;
+
+ xa_erase_irq(&dev->qp_tbl, qp->qpid);
+ synchronize_rcu();
+
+ kref_put(&qp->qp_kref, ionic_qp_complete);
+ wait_for_completion(&qp->qp_rel_comp);
+
+ if (qp->ibqp.send_cq) {
+ cq = to_ionic_vcq_cq(qp->ibqp.send_cq, qp->udma_idx);
+ spin_lock_irqsave(&cq->lock, irqflags);
+ ionic_clean_cq(cq, qp->qpid);
+ list_del(&qp->cq_poll_sq);
+ list_del(&qp->cq_flush_sq);
+ spin_unlock_irqrestore(&cq->lock, irqflags);
+ }
+
+ if (qp->ibqp.recv_cq) {
+ cq = to_ionic_vcq_cq(qp->ibqp.recv_cq, qp->udma_idx);
+ spin_lock_irqsave(&cq->lock, irqflags);
+ ionic_clean_cq(cq, qp->qpid);
+ list_del(&qp->cq_flush_rq);
+ spin_unlock_irqrestore(&cq->lock, irqflags);
+ }
+
+ ionic_qp_rq_destroy(dev, ctx, qp);
+ ionic_qp_sq_destroy(dev, ctx, qp);
+ if (qp->has_ah) {
+ ionic_put_ahid(dev, qp->ahid);
+ kfree(qp->hdr);
+ }
+ ionic_put_qpid(dev, qp->qpid);
+
+ return 0;
+}
diff --git a/drivers/infiniband/hw/ionic/ionic_fw.h b/drivers/infiniband/hw/ionic/ionic_fw.h
index 44ec69487519..c6e9c017155e 100644
--- a/drivers/infiniband/hw/ionic/ionic_fw.h
+++ b/drivers/infiniband/hw/ionic/ionic_fw.h
@@ -5,6 +5,266 @@
#define _IONIC_FW_H_

#include <linux/kernel.h>
+#include <rdma/ib_verbs.h>
+
+/* common for ib spec */
+
+#define IONIC_EXP_DBELL_SZ 8
+
+enum ionic_mrid_bits {
+ IONIC_MRID_INDEX_SHIFT = 8,
+};
+
+static inline u32 ionic_mrid(u32 index, u8 key)
+{
+ return (index << IONIC_MRID_INDEX_SHIFT) | key;
+}
+
+static inline u32 ionic_mrid_index(u32 lrkey)
+{
+ return lrkey >> IONIC_MRID_INDEX_SHIFT;
+}
+
+/* common to all versions */
+
+/* wqe scatter gather element */
+struct ionic_sge {
+ __be64 va;
+ __be32 len;
+ __be32 lkey;
+};
+
+/* admin queue mr type */
+enum ionic_mr_flags {
+ /* bits that determine mr access */
+ IONIC_MRF_LOCAL_WRITE = BIT(0),
+ IONIC_MRF_REMOTE_WRITE = BIT(1),
+ IONIC_MRF_REMOTE_READ = BIT(2),
+ IONIC_MRF_REMOTE_ATOMIC = BIT(3),
+ IONIC_MRF_MW_BIND = BIT(4),
+ IONIC_MRF_ZERO_BASED = BIT(5),
+ IONIC_MRF_ON_DEMAND = BIT(6),
+ IONIC_MRF_PB = BIT(7),
+ IONIC_MRF_ACCESS_MASK = BIT(12) - 1,
+
+ /* bits that determine mr type */
+ IONIC_MRF_UKEY_EN = BIT(13),
+ IONIC_MRF_IS_MW = BIT(14),
+ IONIC_MRF_INV_EN = BIT(15),
+
+ /* base flags combinations for mr types */
+ IONIC_MRF_USER_MR = 0,
+ IONIC_MRF_PHYS_MR = (IONIC_MRF_UKEY_EN |
+ IONIC_MRF_INV_EN),
+ IONIC_MRF_MW_1 = (IONIC_MRF_UKEY_EN |
+ IONIC_MRF_IS_MW),
+ IONIC_MRF_MW_2 = (IONIC_MRF_UKEY_EN |
+ IONIC_MRF_IS_MW |
+ IONIC_MRF_INV_EN),
+};
+
+static inline int to_ionic_mr_flags(int access)
+{
+ int flags = 0;
+
+ if (access & IB_ACCESS_LOCAL_WRITE)
+ flags |= IONIC_MRF_LOCAL_WRITE;
+
+ if (access & IB_ACCESS_REMOTE_READ)
+ flags |= IONIC_MRF_REMOTE_READ;
+
+ if (access & IB_ACCESS_REMOTE_WRITE)
+ flags |= IONIC_MRF_REMOTE_WRITE;
+
+ if (access & IB_ACCESS_REMOTE_ATOMIC)
+ flags |= IONIC_MRF_REMOTE_ATOMIC;
+
+ if (access & IB_ACCESS_MW_BIND)
+ flags |= IONIC_MRF_MW_BIND;
+
+ if (access & IB_ZERO_BASED)
+ flags |= IONIC_MRF_ZERO_BASED;
+
+ return flags;
+}
+
+enum ionic_qp_flags {
+ /* bits that determine qp access */
+ IONIC_QPF_REMOTE_WRITE = BIT(0),
+ IONIC_QPF_REMOTE_READ = BIT(1),
+ IONIC_QPF_REMOTE_ATOMIC = BIT(2),
+
+ /* bits that determine other qp behavior */
+ IONIC_QPF_SQ_PB = BIT(6),
+ IONIC_QPF_RQ_PB = BIT(7),
+ IONIC_QPF_SQ_SPEC = BIT(8),
+ IONIC_QPF_RQ_SPEC = BIT(9),
+ IONIC_QPF_REMOTE_PRIVILEGED = BIT(10),
+ IONIC_QPF_SQ_DRAINING = BIT(11),
+ IONIC_QPF_SQD_NOTIFY = BIT(12),
+ IONIC_QPF_SQ_CMB = BIT(13),
+ IONIC_QPF_RQ_CMB = BIT(14),
+ IONIC_QPF_PRIVILEGED = BIT(15),
+};
+
+static inline int from_ionic_qp_flags(int flags)
+{
+ int access_flags = 0;
+
+ if (flags & IONIC_QPF_REMOTE_WRITE)
+ access_flags |= IB_ACCESS_REMOTE_WRITE;
+
+ if (flags & IONIC_QPF_REMOTE_READ)
+ access_flags |= IB_ACCESS_REMOTE_READ;
+
+ if (flags & IONIC_QPF_REMOTE_ATOMIC)
+ access_flags |= IB_ACCESS_REMOTE_ATOMIC;
+
+ return access_flags;
+}
+
+static inline int to_ionic_qp_flags(int access, bool sqd_notify,
+ bool sq_is_cmb, bool rq_is_cmb,
+ bool sq_spec, bool rq_spec,
+ bool privileged, bool remote_privileged)
+{
+ int flags = 0;
+
+ if (access & IB_ACCESS_REMOTE_WRITE)
+ flags |= IONIC_QPF_REMOTE_WRITE;
+
+ if (access & IB_ACCESS_REMOTE_READ)
+ flags |= IONIC_QPF_REMOTE_READ;
+
+ if (access & IB_ACCESS_REMOTE_ATOMIC)
+ flags |= IONIC_QPF_REMOTE_ATOMIC;
+
+ if (sqd_notify)
+ flags |= IONIC_QPF_SQD_NOTIFY;
+
+ if (sq_is_cmb)
+ flags |= IONIC_QPF_SQ_CMB;
+
+ if (rq_is_cmb)
+ flags |= IONIC_QPF_RQ_CMB;
+
+ if (sq_spec)
+ flags |= IONIC_QPF_SQ_SPEC;
+
+ if (rq_spec)
+ flags |= IONIC_QPF_RQ_SPEC;
+
+ if (privileged)
+ flags |= IONIC_QPF_PRIVILEGED;
+
+ if (remote_privileged)
+ flags |= IONIC_QPF_REMOTE_PRIVILEGED;
+
+ return flags;
+}
+
+/* admin queue qp type */
+enum ionic_qp_type {
+ IONIC_QPT_RC,
+ IONIC_QPT_UC,
+ IONIC_QPT_RD,
+ IONIC_QPT_UD,
+ IONIC_QPT_SRQ,
+ IONIC_QPT_XRC_INI,
+ IONIC_QPT_XRC_TGT,
+ IONIC_QPT_XRC_SRQ,
+};
+
+static inline int to_ionic_qp_type(enum ib_qp_type type)
+{
+ switch (type) {
+ case IB_QPT_GSI:
+ case IB_QPT_UD:
+ return IONIC_QPT_UD;
+ case IB_QPT_RC:
+ return IONIC_QPT_RC;
+ case IB_QPT_UC:
+ return IONIC_QPT_UC;
+ case IB_QPT_XRC_INI:
+ return IONIC_QPT_XRC_INI;
+ case IB_QPT_XRC_TGT:
+ return IONIC_QPT_XRC_TGT;
+ default:
+ return -EINVAL;
+ }
+}
+
+/* admin queue qp state */
+enum ionic_qp_state {
+ IONIC_QPS_RESET,
+ IONIC_QPS_INIT,
+ IONIC_QPS_RTR,
+ IONIC_QPS_RTS,
+ IONIC_QPS_SQD,
+ IONIC_QPS_SQE,
+ IONIC_QPS_ERR,
+};
+
+static inline int from_ionic_qp_state(enum ionic_qp_state state)
+{
+ switch (state) {
+ case IONIC_QPS_RESET:
+ return IB_QPS_RESET;
+ case IONIC_QPS_INIT:
+ return IB_QPS_INIT;
+ case IONIC_QPS_RTR:
+ return IB_QPS_RTR;
+ case IONIC_QPS_RTS:
+ return IB_QPS_RTS;
+ case IONIC_QPS_SQD:
+ return IB_QPS_SQD;
+ case IONIC_QPS_SQE:
+ return IB_QPS_SQE;
+ case IONIC_QPS_ERR:
+ return IB_QPS_ERR;
+ default:
+ return -EINVAL;
+ }
+}
+
+static inline int to_ionic_qp_state(enum ib_qp_state state)
+{
+ switch (state) {
+ case IB_QPS_RESET:
+ return IONIC_QPS_RESET;
+ case IB_QPS_INIT:
+ return IONIC_QPS_INIT;
+ case IB_QPS_RTR:
+ return IONIC_QPS_RTR;
+ case IB_QPS_RTS:
+ return IONIC_QPS_RTS;
+ case IB_QPS_SQD:
+ return IONIC_QPS_SQD;
+ case IB_QPS_SQE:
+ return IONIC_QPS_SQE;
+ case IB_QPS_ERR:
+ return IONIC_QPS_ERR;
+ default:
+ return 0;
+ }
+}
+
+static inline int to_ionic_qp_modify_state(enum ib_qp_state to_state,
+ enum ib_qp_state from_state)
+{
+ return to_ionic_qp_state(to_state) |
+ (to_ionic_qp_state(from_state) << 4);
+}
+
+/* fw abi v1 */
+
+/* data payload part of v1 wqe */
+union ionic_v1_pld {
+ struct ionic_sge sgl[2];
+ __be32 spec32[8];
+ __be16 spec16[16];
+ __u8 data[32];
+};

/* completion queue v1 cqe */
struct ionic_v1_cqe {
@@ -78,6 +338,390 @@ static inline u32 ionic_v1_cqe_qtf_qid(u32 qtf)
return qtf >> IONIC_V1_CQE_QID_SHIFT;
}

+/* v1 base wqe header */
+struct ionic_v1_base_hdr {
+ __u64 wqe_id;
+ __u8 op;
+ __u8 num_sge_key;
+ __be16 flags;
+ __be32 imm_data_key;
+};
+
+/* v1 receive wqe body */
+struct ionic_v1_recv_bdy {
+ __u8 rsvd[16];
+ union ionic_v1_pld pld;
+};
+
+/* v1 send/rdma wqe body (common, has sgl) */
+struct ionic_v1_common_bdy {
+ union {
+ struct {
+ __be32 ah_id;
+ __be32 dest_qpn;
+ __be32 dest_qkey;
+ } send;
+ struct {
+ __be32 remote_va_high;
+ __be32 remote_va_low;
+ __be32 remote_rkey;
+ } rdma;
+ };
+ __be32 length;
+ union ionic_v1_pld pld;
+};
+
+/* v1 atomic wqe body */
+struct ionic_v1_atomic_bdy {
+ __be32 remote_va_high;
+ __be32 remote_va_low;
+ __be32 remote_rkey;
+ __be32 swap_add_high;
+ __be32 swap_add_low;
+ __be32 compare_high;
+ __be32 compare_low;
+ __u8 rsvd[4];
+ struct ionic_sge sge;
+};
+
+/* v1 reg mr wqe body */
+struct ionic_v1_reg_mr_bdy {
+ __be64 va;
+ __be64 length;
+ __be64 offset;
+ __le64 dma_addr;
+ __be32 map_count;
+ __be16 flags;
+ __u8 dir_size_log2;
+ __u8 page_size_log2;
+ __u8 rsvd[8];
+};
+
+/* v1 bind mw wqe body */
+struct ionic_v1_bind_mw_bdy {
+ __be64 va;
+ __be64 length;
+ __be32 lkey;
+ __be16 flags;
+ __u8 rsvd[26];
+};
+
+/* v1 send/recv wqe */
+struct ionic_v1_wqe {
+ struct ionic_v1_base_hdr base;
+ union {
+ struct ionic_v1_recv_bdy recv;
+ struct ionic_v1_common_bdy common;
+ struct ionic_v1_atomic_bdy atomic;
+ struct ionic_v1_reg_mr_bdy reg_mr;
+ struct ionic_v1_bind_mw_bdy bind_mw;
+ };
+};
+
+/* queue pair v1 send opcodes */
+enum ionic_v1_op {
+ IONIC_V1_OP_SEND,
+ IONIC_V1_OP_SEND_INV,
+ IONIC_V1_OP_SEND_IMM,
+ IONIC_V1_OP_RDMA_READ,
+ IONIC_V1_OP_RDMA_WRITE,
+ IONIC_V1_OP_RDMA_WRITE_IMM,
+ IONIC_V1_OP_ATOMIC_CS,
+ IONIC_V1_OP_ATOMIC_FA,
+ IONIC_V1_OP_REG_MR,
+ IONIC_V1_OP_LOCAL_INV,
+ IONIC_V1_OP_BIND_MW,
+
+ /* flags */
+ IONIC_V1_FLAG_FENCE = BIT(0),
+ IONIC_V1_FLAG_SOL = BIT(1),
+ IONIC_V1_FLAG_INL = BIT(2),
+ IONIC_V1_FLAG_SIG = BIT(3),
+
+ /* flags last four bits for sgl spec format */
+ IONIC_V1_FLAG_SPEC32 = (1u << 12),
+ IONIC_V1_FLAG_SPEC16 = (2u << 12),
+ IONIC_V1_SPEC_FIRST_SGE = 2,
+};
+
+static inline size_t ionic_v1_send_wqe_min_size(int min_sge, int min_data,
+ int spec, bool expdb)
+{
+ size_t sz_wqe, sz_sgl, sz_data;
+
+ if (spec > IONIC_V1_SPEC_FIRST_SGE)
+ min_sge += IONIC_V1_SPEC_FIRST_SGE;
+
+ if (expdb) {
+ min_sge += 1;
+ min_data += IONIC_EXP_DBELL_SZ;
+ }
+
+ sz_wqe = sizeof(struct ionic_v1_wqe);
+ sz_sgl = offsetof(struct ionic_v1_wqe, common.pld.sgl[min_sge]);
+ sz_data = offsetof(struct ionic_v1_wqe, common.pld.data[min_data]);
+
+ if (sz_sgl > sz_wqe)
+ sz_wqe = sz_sgl;
+
+ if (sz_data > sz_wqe)
+ sz_wqe = sz_data;
+
+ return sz_wqe;
+}
+
+static inline int ionic_v1_send_wqe_max_sge(u8 stride_log2, int spec,
+ bool expdb)
+{
+ struct ionic_sge *sge = (void *)(1ull << stride_log2);
+ struct ionic_v1_wqe *wqe = (void *)0;
+ int num_sge = 0;
+
+ if (expdb)
+ sge -= 1;
+
+ if (spec > IONIC_V1_SPEC_FIRST_SGE)
+ num_sge = IONIC_V1_SPEC_FIRST_SGE;
+
+ num_sge = sge - &wqe->common.pld.sgl[num_sge];
+
+ if (spec && num_sge > spec)
+ num_sge = spec;
+
+ return num_sge;
+}
+
+static inline int ionic_v1_send_wqe_max_data(u8 stride_log2, bool expdb)
+{
+ struct ionic_v1_wqe *wqe = (void *)0;
+ __u8 *data = (void *)(1ull << stride_log2);
+
+ if (expdb)
+ data -= IONIC_EXP_DBELL_SZ;
+
+ return data - wqe->common.pld.data;
+}
+
+static inline size_t ionic_v1_recv_wqe_min_size(int min_sge, int spec,
+ bool expdb)
+{
+ size_t sz_wqe, sz_sgl;
+
+ if (spec > IONIC_V1_SPEC_FIRST_SGE)
+ min_sge += IONIC_V1_SPEC_FIRST_SGE;
+
+ if (expdb)
+ min_sge += 1;
+
+ sz_wqe = sizeof(struct ionic_v1_wqe);
+ sz_sgl = offsetof(struct ionic_v1_wqe, recv.pld.sgl[min_sge]);
+
+ if (sz_sgl > sz_wqe)
+ sz_wqe = sz_sgl;
+
+ return sz_wqe;
+}
+
+static inline int ionic_v1_recv_wqe_max_sge(u8 stride_log2, int spec,
+ bool expdb)
+{
+ struct ionic_sge *sge = (void *)(1ull << stride_log2);
+ struct ionic_v1_wqe *wqe = (void *)0;
+ int num_sge = 0;
+
+ if (expdb)
+ sge -= 1;
+
+ if (spec > IONIC_V1_SPEC_FIRST_SGE)
+ num_sge = IONIC_V1_SPEC_FIRST_SGE;
+
+ num_sge = sge - &wqe->recv.pld.sgl[num_sge];
+
+ if (spec && num_sge > spec)
+ num_sge = spec;
+
+ return num_sge;
+}
+
+static inline int ionic_v1_use_spec_sge(int min_sge, int spec)
+{
+ if (!spec || min_sge > spec)
+ return 0;
+
+ if (min_sge <= IONIC_V1_SPEC_FIRST_SGE)
+ return IONIC_V1_SPEC_FIRST_SGE;
+
+ return spec;
+}
+
+struct ionic_admin_create_ah {
+ __le64 dma_addr;
+ __le32 length;
+ __le32 pd_id;
+ __le32 id_ver;
+ __le16 dbid_flags;
+ __u8 csum_profile;
+ __u8 crypto;
+} __packed;
+
+#define IONIC_ADMIN_CREATE_AH_IN_V1_LEN 24
+static_assert(sizeof(struct ionic_admin_create_ah) ==
+ IONIC_ADMIN_CREATE_AH_IN_V1_LEN);
+
+struct ionic_admin_destroy_ah {
+ __le32 ah_id;
+} __packed;
+
+#define IONIC_ADMIN_DESTROY_AH_IN_V1_LEN 4
+static_assert(sizeof(struct ionic_admin_destroy_ah) ==
+ IONIC_ADMIN_DESTROY_AH_IN_V1_LEN);
+
+struct ionic_admin_query_ah {
+ __le64 dma_addr;
+} __packed;
+
+#define IONIC_ADMIN_QUERY_AH_IN_V1_LEN 8
+static_assert(sizeof(struct ionic_admin_query_ah) ==
+ IONIC_ADMIN_QUERY_AH_IN_V1_LEN);
+
+struct ionic_admin_create_mr {
+ __le64 va;
+ __le64 length;
+ __le32 pd_id;
+ __le32 id_ver;
+ __le32 tbl_index;
+ __le32 map_count;
+ __le64 dma_addr;
+ __le16 dbid_flags;
+ __u8 pt_type;
+ __u8 dir_size_log2;
+ __u8 page_size_log2;
+} __packed;
+
+#define IONIC_ADMIN_CREATE_MR_IN_V1_LEN 45
+static_assert(sizeof(struct ionic_admin_create_mr) ==
+ IONIC_ADMIN_CREATE_MR_IN_V1_LEN);
+
+struct ionic_admin_destroy_mr {
+ __le32 mr_id;
+} __packed;
+
+#define IONIC_ADMIN_DESTROY_MR_IN_V1_LEN 4
+static_assert(sizeof(struct ionic_admin_destroy_mr) ==
+ IONIC_ADMIN_DESTROY_MR_IN_V1_LEN);
+
+struct ionic_admin_create_cq {
+ __le32 eq_id;
+ __u8 depth_log2;
+ __u8 stride_log2;
+ __u8 dir_size_log2_rsvd;
+ __u8 page_size_log2;
+ __le32 cq_flags;
+ __le32 id_ver;
+ __le32 tbl_index;
+ __le32 map_count;
+ __le64 dma_addr;
+ __le16 dbid_flags;
+} __packed;
+
+#define IONIC_ADMIN_CREATE_CQ_IN_V1_LEN 34
+static_assert(sizeof(struct ionic_admin_create_cq) ==
+ IONIC_ADMIN_CREATE_CQ_IN_V1_LEN);
+
+struct ionic_admin_destroy_cq {
+ __le32 cq_id;
+} __packed;
+
+#define IONIC_ADMIN_DESTROY_CQ_IN_V1_LEN 4
+static_assert(sizeof(struct ionic_admin_destroy_cq) ==
+ IONIC_ADMIN_DESTROY_CQ_IN_V1_LEN);
+
+struct ionic_admin_create_qp {
+ __le32 pd_id;
+ __be32 priv_flags;
+ __le32 sq_cq_id;
+ __u8 sq_depth_log2;
+ __u8 sq_stride_log2;
+ __u8 sq_dir_size_log2_rsvd;
+ __u8 sq_page_size_log2;
+ __le32 sq_tbl_index_xrcd_id;
+ __le32 sq_map_count;
+ __le64 sq_dma_addr;
+ __le32 rq_cq_id;
+ __u8 rq_depth_log2;
+ __u8 rq_stride_log2;
+ __u8 rq_dir_size_log2_rsvd;
+ __u8 rq_page_size_log2;
+ __le32 rq_tbl_index_srq_id;
+ __le32 rq_map_count;
+ __le64 rq_dma_addr;
+ __le32 id_ver;
+ __le16 dbid_flags;
+ __u8 type_state;
+ __u8 rsvd;
+} __packed;
+
+#define IONIC_ADMIN_CREATE_QP_IN_V1_LEN 64
+static_assert(sizeof(struct ionic_admin_create_qp) ==
+ IONIC_ADMIN_CREATE_QP_IN_V1_LEN);
+
+struct ionic_admin_destroy_qp {
+ __le32 qp_id;
+} __packed;
+
+#define IONIC_ADMIN_DESTROY_QP_IN_V1_LEN 4
+static_assert(sizeof(struct ionic_admin_destroy_qp) ==
+ IONIC_ADMIN_DESTROY_QP_IN_V1_LEN);
+
+struct ionic_admin_mod_qp {
+ __be32 attr_mask;
+ __u8 dcqcn_profile;
+ __u8 tfp_csum_profile;
+ __be16 access_flags;
+ __le32 rq_psn;
+ __le32 sq_psn;
+ __le32 qkey_dest_qpn;
+ __le32 rate_limit_kbps;
+ __u8 pmtu;
+ __u8 retry;
+ __u8 rnr_timer;
+ __u8 retry_timeout;
+ __u8 rsq_depth;
+ __u8 rrq_depth;
+ __le16 pkey_id;
+ __le32 ah_id_len;
+ __u8 en_pcp;
+ __u8 ip_dscp;
+ __u8 rsvd2;
+ __u8 type_state;
+ union {
+ struct {
+ __le16 rsvd1;
+ };
+ __le32 rrq_index;
+ };
+ __le32 rsq_index;
+ __le64 dma_addr;
+ __le32 id_ver;
+} __packed;
+
+#define IONIC_ADMIN_MODIFY_QP_IN_V1_LEN 60
+static_assert(sizeof(struct ionic_admin_mod_qp) ==
+ IONIC_ADMIN_MODIFY_QP_IN_V1_LEN);
+
+struct ionic_admin_query_qp {
+ __le64 hdr_dma_addr;
+ __le64 sq_dma_addr;
+ __le64 rq_dma_addr;
+ __le32 ah_id;
+ __le32 id_ver;
+ __le16 dbid_flags;
+} __packed;
+
+#define IONIC_ADMIN_QUERY_QP_IN_V1_LEN 34
+static_assert(sizeof(struct ionic_admin_query_qp) ==
+ IONIC_ADMIN_QUERY_QP_IN_V1_LEN);
+
#define ADMIN_WQE_STRIDE 64
#define ADMIN_WQE_HDR_LEN 4

@@ -88,9 +732,66 @@ struct ionic_v1_admin_wqe {
__le16 len;

union {
+ struct ionic_admin_create_ah create_ah;
+ struct ionic_admin_destroy_ah destroy_ah;
+ struct ionic_admin_query_ah query_ah;
+ struct ionic_admin_create_mr create_mr;
+ struct ionic_admin_destroy_mr destroy_mr;
+ struct ionic_admin_create_cq create_cq;
+ struct ionic_admin_destroy_cq destroy_cq;
+ struct ionic_admin_create_qp create_qp;
+ struct ionic_admin_destroy_qp destroy_qp;
+ struct ionic_admin_mod_qp mod_qp;
+ struct ionic_admin_query_qp query_qp;
} cmd;
};

+/* side data for query qp */
+struct ionic_v1_admin_query_qp_sq {
+ __u8 rnr_timer;
+ __u8 retry_timeout;
+ __be16 access_perms_flags;
+ __be16 rsvd;
+ __be16 pkey_id;
+ __be32 qkey_dest_qpn;
+ __be32 rate_limit_kbps;
+ __be32 rq_psn;
+};
+
+struct ionic_v1_admin_query_qp_rq {
+ __u8 state_pmtu;
+ __u8 retry_rnrtry;
+ __u8 rrq_depth;
+ __u8 rsq_depth;
+ __be32 sq_psn;
+ __be16 access_perms_flags;
+ __be16 rsvd;
+};
+
+/* admin queue v1 opcodes */
+enum ionic_v1_admin_op {
+ IONIC_V1_ADMIN_NOOP,
+ IONIC_V1_ADMIN_CREATE_CQ,
+ IONIC_V1_ADMIN_CREATE_QP,
+ IONIC_V1_ADMIN_CREATE_MR,
+ IONIC_V1_ADMIN_STATS_HDRS,
+ IONIC_V1_ADMIN_STATS_VALS,
+ IONIC_V1_ADMIN_DESTROY_MR,
+ IONIC_v1_ADMIN_RSVD_7, /* RESIZE_CQ */
+ IONIC_V1_ADMIN_DESTROY_CQ,
+ IONIC_V1_ADMIN_MODIFY_QP,
+ IONIC_V1_ADMIN_QUERY_QP,
+ IONIC_V1_ADMIN_DESTROY_QP,
+ IONIC_V1_ADMIN_DEBUG,
+ IONIC_V1_ADMIN_CREATE_AH,
+ IONIC_V1_ADMIN_QUERY_AH,
+ IONIC_V1_ADMIN_MODIFY_DCQCN,
+ IONIC_V1_ADMIN_DESTROY_AH,
+ IONIC_V1_ADMIN_QP_STATS_HDRS,
+ IONIC_V1_ADMIN_QP_STATS_VALS,
+ IONIC_V1_ADMIN_OPCODES_MAX,
+};
+
/* admin queue v1 cqe status */
enum ionic_v1_admin_status {
IONIC_V1_ASTS_OK,
@@ -136,6 +837,22 @@ enum ionic_v1_eqe_evt_bits {
IONIC_V1_EQE_QP_ERR_ACCESS = 10,
};

+enum ionic_tfp_csum_profiles {
+ IONIC_TFP_CSUM_PROF_ETH_IPV4_UDP = 0,
+ IONIC_TFP_CSUM_PROF_ETH_QTAG_IPV4_UDP = 1,
+ IONIC_TFP_CSUM_PROF_ETH_IPV6_UDP = 2,
+ IONIC_TFP_CSUM_PROF_ETH_QTAG_IPV6_UDP = 3,
+ IONIC_TFP_CSUM_PROF_IPV4_UDP_VXLAN_ETH_QTAG_IPV4_UDP = 4,
+ IONIC_TFP_CSUM_PROF_IPV4_UDP_VXLAN_ETH_QTAG_IPV6_UDP = 5,
+ IONIC_TFP_CSUM_PROF_QTAG_IPV4_UDP_VXLAN_ETH_QTAG_IPV4_UDP = 6,
+ IONIC_TFP_CSUM_PROF_QTAG_IPV4_UDP_VXLAN_ETH_QTAG_IPV6_UDP = 7,
+ IONIC_TFP_CSUM_PROF_ETH_QTAG_IPV4_UDP_ESP_IPV4_UDP = 8,
+ IONIC_TFP_CSUM_PROF_ETH_QTAG_IPV4_ESP_UDP = 9,
+ IONIC_TFP_CSUM_PROF_ETH_QTAG_IPV4_UDP_ESP_UDP = 10,
+ IONIC_TFP_CSUM_PROF_ETH_QTAG_IPV6_ESP_UDP = 11,
+ IONIC_TFP_CSUM_PROF_ETH_QTAG_IPV4_UDP_CSUM = 12,
+};
+
static inline bool ionic_v1_eqe_color(struct ionic_v1_eqe *eqe)
{
return eqe->evt & cpu_to_be32(IONIC_V1_EQE_COLOR);
diff --git a/drivers/infiniband/hw/ionic/ionic_ibdev.c b/drivers/infiniband/hw/ionic/ionic_ibdev.c
index 34febbeb08a5..851f512a155e 100644
--- a/drivers/infiniband/hw/ionic/ionic_ibdev.c
+++ b/drivers/infiniband/hw/ionic/ionic_ibdev.c
@@ -15,6 +15,44 @@ MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
MODULE_LICENSE("GPL");
MODULE_IMPORT_NS("NET_IONIC");

+static const struct ib_device_ops ionic_dev_ops = {
+ .owner = THIS_MODULE,
+ .driver_id = RDMA_DRIVER_IONIC,
+ .uverbs_abi_ver = IONIC_ABI_VERSION,
+
+ .alloc_ucontext = ionic_alloc_ucontext,
+ .dealloc_ucontext = ionic_dealloc_ucontext,
+ .mmap = ionic_mmap,
+ .mmap_free = ionic_mmap_free,
+ .alloc_pd = ionic_alloc_pd,
+ .dealloc_pd = ionic_dealloc_pd,
+ .create_ah = ionic_create_ah,
+ .query_ah = ionic_query_ah,
+ .destroy_ah = ionic_destroy_ah,
+ .create_user_ah = ionic_create_ah,
+ .get_dma_mr = ionic_get_dma_mr,
+ .reg_user_mr = ionic_reg_user_mr,
+ .reg_user_mr_dmabuf = ionic_reg_user_mr_dmabuf,
+ .dereg_mr = ionic_dereg_mr,
+ .alloc_mr = ionic_alloc_mr,
+ .map_mr_sg = ionic_map_mr_sg,
+ .alloc_mw = ionic_alloc_mw,
+ .dealloc_mw = ionic_dealloc_mw,
+ .create_cq = ionic_create_cq,
+ .destroy_cq = ionic_destroy_cq,
+ .create_qp = ionic_create_qp,
+ .modify_qp = ionic_modify_qp,
+ .query_qp = ionic_query_qp,
+ .destroy_qp = ionic_destroy_qp,
+
+ INIT_RDMA_OBJ_SIZE(ib_ucontext, ionic_ctx, ibctx),
+ INIT_RDMA_OBJ_SIZE(ib_pd, ionic_pd, ibpd),
+ INIT_RDMA_OBJ_SIZE(ib_ah, ionic_ah, ibah),
+ INIT_RDMA_OBJ_SIZE(ib_cq, ionic_vcq, ibcq),
+ INIT_RDMA_OBJ_SIZE(ib_qp, ionic_qp, ibqp),
+ INIT_RDMA_OBJ_SIZE(ib_mw, ionic_mr, ibmw),
+};
+
static void ionic_init_resids(struct ionic_ibdev *dev)
{
ionic_resid_init(&dev->inuse_cqid, dev->lif_cfg.cq_count);
@@ -48,6 +86,8 @@ static void ionic_destroy_ibdev(struct ionic_ibdev *dev)
ib_unregister_device(&dev->ibdev);
ionic_destroy_rdma_admin(dev);
ionic_destroy_resids(dev);
+ WARN_ON(!xa_empty(&dev->qp_tbl));
+ xa_destroy(&dev->qp_tbl);
WARN_ON(!xa_empty(&dev->cq_tbl));
xa_destroy(&dev->cq_tbl);
ib_dealloc_device(&dev->ibdev);
@@ -69,6 +109,7 @@ static struct ionic_ibdev *ionic_create_ibdev(struct ionic_aux_dev *ionic_adev)

ionic_fill_lif_cfg(ionic_adev->lif, &dev->lif_cfg);

+ xa_init_flags(&dev->qp_tbl, GFP_ATOMIC);
xa_init_flags(&dev->cq_tbl, GFP_ATOMIC);

ionic_init_resids(dev);
@@ -100,6 +141,8 @@ static struct ionic_ibdev *ionic_create_ibdev(struct ionic_aux_dev *ionic_adev)
if (rc)
goto err_admin;

+ ib_set_device_ops(&dev->ibdev, &ionic_dev_ops);
+
rc = ib_register_device(ibdev, "ionic_%d", ibdev->dev.parent);
if (rc)
goto err_register;
@@ -112,6 +155,7 @@ static struct ionic_ibdev *ionic_create_ibdev(struct ionic_aux_dev *ionic_adev)
ionic_destroy_rdma_admin(dev);
err_reset:
ionic_destroy_resids(dev);
+ xa_destroy(&dev->qp_tbl);
xa_destroy(&dev->cq_tbl);
ib_dealloc_device(&dev->ibdev);

diff --git a/drivers/infiniband/hw/ionic/ionic_ibdev.h b/drivers/infiniband/hw/ionic/ionic_ibdev.h
index e7563c0429fc..72e1ca10364c 100644
--- a/drivers/infiniband/hw/ionic/ionic_ibdev.h
+++ b/drivers/infiniband/hw/ionic/ionic_ibdev.h
@@ -6,7 +6,10 @@

#include <rdma/ib_umem.h>
#include <rdma/ib_verbs.h>
+#include <rdma/ib_pack.h>
+#include <rdma/uverbs_ioctl.h>

+#include <rdma/ionic-abi.h>
#include <ionic_api.h>
#include <ionic_regs.h>

@@ -30,9 +33,26 @@
#define IONIC_EQ_ISR_BUDGET 10
#define IONIC_EQ_WORK_BUDGET 1000
#define IONIC_MAX_PD 1024
+#define IONIC_SPEC_HIGH 8
+#define IONIC_SQCMB_ORDER 5
+#define IONIC_RQCMB_ORDER 0
+
+#define IONIC_META_LAST ((void *)1ul)
+#define IONIC_META_POSTED ((void *)2ul)

#define IONIC_CQ_GRACE 100

+#define IONIC_ROCE_UDP_SPORT 28272
+#define IONIC_DMA_LKEY 0
+#define IONIC_DMA_RKEY IONIC_DMA_LKEY
+
+#define IONIC_CMB_SUPPORTED \
+ (IONIC_CMB_ENABLE | IONIC_CMB_REQUIRE | IONIC_CMB_EXPDB | \
+ IONIC_CMB_WC | IONIC_CMB_UC)
+
+/* resource is not reserved on the device, indicated in tbl_order */
+#define IONIC_RES_INVALID -1
+
struct ionic_aq;
struct ionic_cq;
struct ionic_eq;
@@ -50,14 +70,6 @@ enum ionic_admin_flags {
IONIC_ADMIN_F_INTERRUPT = BIT(2), /* Interruptible w/timeout */
};

-struct ionic_qdesc {
- __aligned_u64 addr;
- __u32 size;
- __u16 mask;
- __u8 depth_log2;
- __u8 stride_log2;
-};
-
enum ionic_mmap_flag {
IONIC_MMAP_WC = BIT(0),
};
@@ -166,6 +178,13 @@ struct ionic_tbl_buf {
u8 page_size_log2;
};

+struct ionic_pd {
+ struct ib_pd ibpd;
+
+ u32 pdid;
+ u32 flags;
+};
+
struct ionic_cq {
struct ionic_vcq *vcq;

@@ -199,11 +218,188 @@ struct ionic_vcq {
u8 poll_idx;
};

+struct ionic_sq_meta {
+ u64 wrid;
+ u32 len;
+ u16 seq;
+ u8 ibop;
+ u8 ibsts;
+ u8 remote:1;
+ u8 signal:1;
+ u8 local_comp:1;
+};
+
+struct ionic_rq_meta {
+ struct ionic_rq_meta *next;
+ u64 wrid;
+};
+
+struct ionic_qp {
+ struct ib_qp ibqp;
+ enum ib_qp_state state;
+
+ u32 qpid;
+ u32 ahid;
+ u32 sq_cqid;
+ u32 rq_cqid;
+ u8 udma_idx;
+ u8 has_ah:1;
+ u8 has_sq:1;
+ u8 has_rq:1;
+ u8 sig_all:1;
+
+ struct list_head qp_list_counter;
+
+ struct list_head cq_poll_sq;
+ struct list_head cq_flush_sq;
+ struct list_head cq_flush_rq;
+ struct list_head ibkill_flush_ent;
+
+ spinlock_t sq_lock; /* for posting and polling */
+ struct ionic_queue sq;
+ struct ionic_sq_meta *sq_meta;
+ u16 *sq_msn_idx;
+ int sq_spec;
+ u16 sq_old_prod;
+ u16 sq_msn_prod;
+ u16 sq_msn_cons;
+ u8 sq_cmb;
+ bool sq_flush;
+ bool sq_flush_rcvd;
+
+ spinlock_t rq_lock; /* for posting and polling */
+ struct ionic_queue rq;
+ struct ionic_rq_meta *rq_meta;
+ struct ionic_rq_meta *rq_meta_head;
+ int rq_spec;
+ u16 rq_old_prod;
+ u8 rq_cmb;
+ bool rq_flush;
+
+ struct kref qp_kref;
+ struct completion qp_rel_comp;
+
+ /* infrequently accessed, keep at end */
+ int sgid_index;
+ int sq_cmb_order;
+ u32 sq_cmb_pgid;
+ phys_addr_t sq_cmb_addr;
+ struct rdma_user_mmap_entry *mmap_sq_cmb;
+
+ struct ib_umem *sq_umem;
+
+ int rq_cmb_order;
+ u32 rq_cmb_pgid;
+ phys_addr_t rq_cmb_addr;
+ struct rdma_user_mmap_entry *mmap_rq_cmb;
+
+ struct ib_umem *rq_umem;
+
+ int dcqcn_profile;
+
+ struct ib_ud_header *hdr;
+};
+
+struct ionic_ah {
+ struct ib_ah ibah;
+ u32 ahid;
+ int sgid_index;
+ struct ib_ud_header hdr;
+};
+
+struct ionic_mr {
+ union {
+ struct ib_mr ibmr;
+ struct ib_mw ibmw;
+ };
+
+ u32 mrid;
+ int flags;
+
+ struct ib_umem *umem;
+ struct ionic_tbl_buf buf;
+ bool created;
+};
+
static inline struct ionic_ibdev *to_ionic_ibdev(struct ib_device *ibdev)
{
return container_of(ibdev, struct ionic_ibdev, ibdev);
}

+static inline struct ionic_ctx *to_ionic_ctx(struct ib_ucontext *ibctx)
+{
+ return container_of(ibctx, struct ionic_ctx, ibctx);
+}
+
+static inline struct ionic_ctx *to_ionic_ctx_uobj(struct ib_uobject *uobj)
+{
+ if (!uobj)
+ return NULL;
+
+ if (!uobj->context)
+ return NULL;
+
+ return to_ionic_ctx(uobj->context);
+}
+
+static inline struct ionic_pd *to_ionic_pd(struct ib_pd *ibpd)
+{
+ return container_of(ibpd, struct ionic_pd, ibpd);
+}
+
+static inline struct ionic_mr *to_ionic_mr(struct ib_mr *ibmr)
+{
+ return container_of(ibmr, struct ionic_mr, ibmr);
+}
+
+static inline struct ionic_mr *to_ionic_mw(struct ib_mw *ibmw)
+{
+ return container_of(ibmw, struct ionic_mr, ibmw);
+}
+
+static inline struct ionic_vcq *to_ionic_vcq(struct ib_cq *ibcq)
+{
+ return container_of(ibcq, struct ionic_vcq, ibcq);
+}
+
+static inline struct ionic_cq *to_ionic_vcq_cq(struct ib_cq *ibcq,
+ uint8_t udma_idx)
+{
+ return &to_ionic_vcq(ibcq)->cq[udma_idx];
+}
+
+static inline struct ionic_qp *to_ionic_qp(struct ib_qp *ibqp)
+{
+ return container_of(ibqp, struct ionic_qp, ibqp);
+}
+
+static inline struct ionic_ah *to_ionic_ah(struct ib_ah *ibah)
+{
+ return container_of(ibah, struct ionic_ah, ibah);
+}
+
+static inline u32 ionic_ctx_dbid(struct ionic_ibdev *dev,
+ struct ionic_ctx *ctx)
+{
+ if (!ctx)
+ return dev->lif_cfg.dbid;
+
+ return ctx->dbid;
+}
+
+static inline u32 ionic_obj_dbid(struct ionic_ibdev *dev,
+ struct ib_uobject *uobj)
+{
+ return ionic_ctx_dbid(dev, to_ionic_ctx_uobj(uobj));
+}
+
+static inline void ionic_qp_complete(struct kref *kref)
+{
+ struct ionic_qp *qp = container_of(kref, struct ionic_qp, qp_kref);
+
+ complete(&qp->qp_rel_comp);
+}
+
static inline void ionic_cq_complete(struct kref *kref)
{
struct ionic_cq *cq = container_of(kref, struct ionic_cq, cq_kref);
@@ -233,8 +429,45 @@ int ionic_create_cq_common(struct ionic_vcq *vcq,
__u32 *resp_cqid,
int udma_idx);
void ionic_destroy_cq_common(struct ionic_ibdev *dev, struct ionic_cq *cq);
+void ionic_flush_qp(struct ionic_ibdev *dev, struct ionic_qp *qp);
+void ionic_notify_flush_cq(struct ionic_cq *cq);
+
+int ionic_alloc_ucontext(struct ib_ucontext *ibctx, struct ib_udata *udata);
+void ionic_dealloc_ucontext(struct ib_ucontext *ibctx);
+int ionic_mmap(struct ib_ucontext *ibctx, struct vm_area_struct *vma);
+void ionic_mmap_free(struct rdma_user_mmap_entry *rdma_entry);
+int ionic_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
+int ionic_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
+int ionic_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *init_attr,
+ struct ib_udata *udata);
+int ionic_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr);
+int ionic_destroy_ah(struct ib_ah *ibah, u32 flags);
+struct ib_mr *ionic_get_dma_mr(struct ib_pd *ibpd, int access);
+struct ib_mr *ionic_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 length,
+ u64 addr, int access, struct ib_udata *udata);
+struct ib_mr *ionic_reg_user_mr_dmabuf(struct ib_pd *ibpd, u64 offset,
+ u64 length, u64 addr, int fd, int access,
+ struct uverbs_attr_bundle *attrs);
+int ionic_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
+struct ib_mr *ionic_alloc_mr(struct ib_pd *ibpd, enum ib_mr_type type,
+ u32 max_sg);
+int ionic_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
+ unsigned int *sg_offset);
+int ionic_alloc_mw(struct ib_mw *ibmw, struct ib_udata *udata);
+int ionic_dealloc_mw(struct ib_mw *ibmw);
+int ionic_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
+ struct uverbs_attr_bundle *attrs);
+int ionic_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata);
+int ionic_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attr,
+ struct ib_udata *udata);
+int ionic_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int mask,
+ struct ib_udata *udata);
+int ionic_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int mask,
+ struct ib_qp_init_attr *init_attr);
+int ionic_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata);

/* ionic_pgtbl.c */
+__le64 ionic_pgtbl_dma(struct ionic_tbl_buf *buf, u64 va);
int ionic_pgtbl_page(struct ionic_tbl_buf *buf, u64 dma);
int ionic_pgtbl_init(struct ionic_ibdev *dev,
struct ionic_tbl_buf *buf,
diff --git a/drivers/infiniband/hw/ionic/ionic_pgtbl.c b/drivers/infiniband/hw/ionic/ionic_pgtbl.c
index 11461f7642bc..a8eb73be6f86 100644
--- a/drivers/infiniband/hw/ionic/ionic_pgtbl.c
+++ b/drivers/infiniband/hw/ionic/ionic_pgtbl.c
@@ -7,6 +7,25 @@
#include "ionic_fw.h"
#include "ionic_ibdev.h"

+__le64 ionic_pgtbl_dma(struct ionic_tbl_buf *buf, u64 va)
+{
+ u64 pg_mask = BIT_ULL(buf->page_size_log2) - 1;
+ u64 dma;
+
+ if (!buf->tbl_pages)
+ return cpu_to_le64(0);
+
+ if (buf->tbl_pages > 1)
+ return cpu_to_le64(buf->tbl_dma);
+
+ if (buf->tbl_buf)
+ dma = le64_to_cpu(buf->tbl_buf[0]);
+ else
+ dma = buf->tbl_dma;
+
+ return cpu_to_le64(dma + (va & pg_mask));
+}
+
int ionic_pgtbl_page(struct ionic_tbl_buf *buf, u64 dma)
{
if (unlikely(buf->tbl_pages == buf->tbl_limit))
diff --git a/include/uapi/rdma/ionic-abi.h b/include/uapi/rdma/ionic-abi.h
new file mode 100644
index 000000000000..a18388ab7a1d
--- /dev/null
+++ b/include/uapi/rdma/ionic-abi.h
@@ -0,0 +1,115 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* Copyright (C) 2018-2025, Advanced Micro Devices, Inc */
+
+#ifndef IONIC_ABI_H
+#define IONIC_ABI_H
+
+#include <linux/types.h>
+
+#define IONIC_ABI_VERSION 4
+
+#define IONIC_EXPDB_64 1
+#define IONIC_EXPDB_128 2
+#define IONIC_EXPDB_256 4
+#define IONIC_EXPDB_512 8
+
+#define IONIC_EXPDB_SQ 1
+#define IONIC_EXPDB_RQ 2
+
+#define IONIC_CMB_ENABLE 1
+#define IONIC_CMB_REQUIRE 2
+#define IONIC_CMB_EXPDB 4
+#define IONIC_CMB_WC 8
+#define IONIC_CMB_UC 16
+
+struct ionic_ctx_req {
+ __u32 rsvd[2];
+};
+
+struct ionic_ctx_resp {
+ __u32 rsvd;
+ __u32 page_shift;
+
+ __aligned_u64 dbell_offset;
+
+ __u16 version;
+ __u8 qp_opcodes;
+ __u8 admin_opcodes;
+
+ __u8 sq_qtype;
+ __u8 rq_qtype;
+ __u8 cq_qtype;
+ __u8 admin_qtype;
+
+ __u8 max_stride;
+ __u8 max_spec;
+ __u8 udma_count;
+ __u8 expdb_mask;
+ __u8 expdb_qtypes;
+
+ __u8 rsvd2[3];
+};
+
+struct ionic_qdesc {
+ __aligned_u64 addr;
+ __u32 size;
+ __u16 mask;
+ __u8 depth_log2;
+ __u8 stride_log2;
+};
+
+struct ionic_ah_resp {
+ __u32 ahid;
+ __u32 pad;
+};
+
+struct ionic_cq_req {
+ struct ionic_qdesc cq[2];
+ __u8 udma_mask;
+ __u8 rsvd[7];
+};
+
+struct ionic_cq_resp {
+ __u32 cqid[2];
+ __u8 udma_mask;
+ __u8 rsvd[7];
+};
+
+struct ionic_qp_req {
+ struct ionic_qdesc sq;
+ struct ionic_qdesc rq;
+ __u8 sq_spec;
+ __u8 rq_spec;
+ __u8 sq_cmb;
+ __u8 rq_cmb;
+ __u8 udma_mask;
+ __u8 rsvd[3];
+};
+
+struct ionic_qp_resp {
+ __u32 qpid;
+ __u8 sq_cmb;
+ __u8 rq_cmb;
+ __u8 udma_idx;
+ __u8 rsvd[1];
+ __aligned_u64 sq_cmb_offset;
+ __aligned_u64 rq_cmb_offset;
+};
+
+struct ionic_srq_req {
+ struct ionic_qdesc rq;
+ __u8 rq_spec;
+ __u8 rq_cmb;
+ __u8 udma_mask;
+ __u8 rsvd[5];
+};
+
+struct ionic_srq_resp {
+ __u32 qpid;
+ __u8 rq_cmb;
+ __u8 udma_idx;
+ __u8 rsvd[2];
+ __aligned_u64 rq_cmb_offset;
+};
+
+#endif /* IONIC_ABI_H */
--
2.43.0