#include <linux/interrupt.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/if_ether.h>
#include <net/addrconf.h>
#include <rdma/ib_verbs.h>
#include <rdma/ib_user_verbs.h>
#include <rdma/ib_umem.h>
#include <rdma/ib_addr.h>
#include <rdma/ib_mad.h>
#include <rdma/ib_cache.h>
#include <rdma/ib_pma.h>
#include <rdma/uverbs_ioctl.h>
#include <linux/hashtable.h>
#include "roce_hsi.h"
#include "qplib_res.h"
#include "qplib_sp.h"
#include "qplib_fp.h"
#include "qplib_rcfw.h"
#include "bnxt_re.h"
#include "ib_verbs.h"
#include "debugfs.h"
#include <rdma/uverbs_types.h>
#include <rdma/uverbs_std_types.h>
#include <rdma/ib_user_ioctl_cmds.h>
#define UVERBS_MODULE_NAME bnxt_re
#include <rdma/uverbs_named_ioctl.h>
#include <rdma/bnxt_re-abi.h>
static int __from_ib_access_flags(int iflags)
{
int qflags = 0;
if (iflags & IB_ACCESS_LOCAL_WRITE)
qflags |= BNXT_QPLIB_ACCESS_LOCAL_WRITE;
if (iflags & IB_ACCESS_REMOTE_READ)
qflags |= BNXT_QPLIB_ACCESS_REMOTE_READ;
if (iflags & IB_ACCESS_REMOTE_WRITE)
qflags |= BNXT_QPLIB_ACCESS_REMOTE_WRITE;
if (iflags & IB_ACCESS_REMOTE_ATOMIC)
qflags |= BNXT_QPLIB_ACCESS_REMOTE_ATOMIC;
if (iflags & IB_ACCESS_MW_BIND)
qflags |= BNXT_QPLIB_ACCESS_MW_BIND;
if (iflags & IB_ZERO_BASED)
qflags |= BNXT_QPLIB_ACCESS_ZERO_BASED;
if (iflags & IB_ACCESS_ON_DEMAND)
qflags |= BNXT_QPLIB_ACCESS_ON_DEMAND;
return qflags;
};
static int __to_ib_access_flags(int qflags)
{
int iflags = 0;
if (qflags & BNXT_QPLIB_ACCESS_LOCAL_WRITE)
iflags |= IB_ACCESS_LOCAL_WRITE;
if (qflags & BNXT_QPLIB_ACCESS_REMOTE_WRITE)
iflags |= IB_ACCESS_REMOTE_WRITE;
if (qflags & BNXT_QPLIB_ACCESS_REMOTE_READ)
iflags |= IB_ACCESS_REMOTE_READ;
if (qflags & BNXT_QPLIB_ACCESS_REMOTE_ATOMIC)
iflags |= IB_ACCESS_REMOTE_ATOMIC;
if (qflags & BNXT_QPLIB_ACCESS_MW_BIND)
iflags |= IB_ACCESS_MW_BIND;
if (qflags & BNXT_QPLIB_ACCESS_ZERO_BASED)
iflags |= IB_ZERO_BASED;
if (qflags & BNXT_QPLIB_ACCESS_ON_DEMAND)
iflags |= IB_ACCESS_ON_DEMAND;
return iflags;
}
static u8 __qp_access_flags_from_ib(struct bnxt_qplib_chip_ctx *cctx, int iflags)
{
u8 qflags = 0;
if (!bnxt_qplib_is_chip_gen_p5_p7(cctx))
return (u8)__from_ib_access_flags(iflags);
if (iflags & IB_ACCESS_LOCAL_WRITE)
qflags |= CMDQ_MODIFY_QP_ACCESS_LOCAL_WRITE;
if (iflags & IB_ACCESS_REMOTE_WRITE)
qflags |= CMDQ_MODIFY_QP_ACCESS_REMOTE_WRITE;
if (iflags & IB_ACCESS_REMOTE_READ)
qflags |= CMDQ_MODIFY_QP_ACCESS_REMOTE_READ;
if (iflags & IB_ACCESS_REMOTE_ATOMIC)
qflags |= CMDQ_MODIFY_QP_ACCESS_REMOTE_ATOMIC;
return qflags;
}
static int __qp_access_flags_to_ib(struct bnxt_qplib_chip_ctx *cctx, u8 qflags)
{
int iflags = 0;
if (!bnxt_qplib_is_chip_gen_p5_p7(cctx))
return __to_ib_access_flags(qflags);
if (qflags & CMDQ_MODIFY_QP_ACCESS_LOCAL_WRITE)
iflags |= IB_ACCESS_LOCAL_WRITE;
if (qflags & CMDQ_MODIFY_QP_ACCESS_REMOTE_WRITE)
iflags |= IB_ACCESS_REMOTE_WRITE;
if (qflags & CMDQ_MODIFY_QP_ACCESS_REMOTE_READ)
iflags |= IB_ACCESS_REMOTE_READ;
if (qflags & CMDQ_MODIFY_QP_ACCESS_REMOTE_ATOMIC)
iflags |= IB_ACCESS_REMOTE_ATOMIC;
return iflags;
}
static void bnxt_re_check_and_set_relaxed_ordering(struct bnxt_re_dev *rdev,
struct bnxt_qplib_mrw *qplib_mr)
{
if (_is_relaxed_ordering_supported(rdev->dev_attr->dev_cap_flags2) &&
pcie_relaxed_ordering_enabled(rdev->en_dev->pdev))
qplib_mr->flags |= CMDQ_REGISTER_MR_FLAGS_ENABLE_RO;
}
static int bnxt_re_build_sgl(struct ib_sge *ib_sg_list,
struct bnxt_qplib_sge *sg_list, int num)
{
int i, total = 0;
for (i = 0; i < num; i++) {
sg_list[i].addr = ib_sg_list[i].addr;
sg_list[i].lkey = ib_sg_list[i].lkey;
sg_list[i].size = ib_sg_list[i].length;
total += sg_list[i].size;
}
return total;
}
int bnxt_re_query_device(struct ib_device *ibdev,
struct ib_device_attr *ib_attr,
struct ib_udata *udata)
{
struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibdev, ibdev);
struct bnxt_qplib_dev_attr *dev_attr = rdev->dev_attr;
struct bnxt_re_query_device_ex_resp resp = {};
int rc = 0;
rc = ib_is_udata_in_empty(udata);
if (rc)
return rc;
memset(ib_attr, 0, sizeof(*ib_attr));
memcpy(&ib_attr->fw_ver, dev_attr->fw_ver,
min(sizeof(dev_attr->fw_ver),
sizeof(ib_attr->fw_ver)));
addrconf_addr_eui48((u8 *)&ib_attr->sys_image_guid,
rdev->netdev->dev_addr);
ib_attr->max_mr_size = BNXT_RE_MAX_MR_SIZE;
ib_attr->page_size_cap = BNXT_RE_PAGE_SIZE_SUPPORTED;
ib_attr->vendor_id = rdev->en_dev->pdev->vendor;
ib_attr->vendor_part_id = rdev->en_dev->pdev->device;
ib_attr->hw_ver = rdev->en_dev->pdev->revision;
ib_attr->max_qp = dev_attr->max_qp;
ib_attr->max_qp_wr = dev_attr->max_qp_wqes;
ib_attr->device_cap_flags =
IB_DEVICE_CURR_QP_STATE_MOD
| IB_DEVICE_RC_RNR_NAK_GEN
| IB_DEVICE_SHUTDOWN_PORT
| IB_DEVICE_SYS_IMAGE_GUID
| IB_DEVICE_RESIZE_MAX_WR
| IB_DEVICE_PORT_ACTIVE_EVENT
| IB_DEVICE_N_NOTIFY_CQ
| IB_DEVICE_MEM_WINDOW
| IB_DEVICE_MEM_WINDOW_TYPE_2B
| IB_DEVICE_MEM_MGT_EXTENSIONS;
ib_attr->kernel_cap_flags = IBK_LOCAL_DMA_LKEY;
ib_attr->max_send_sge = dev_attr->max_qp_sges;
ib_attr->max_recv_sge = dev_attr->max_qp_sges;
ib_attr->max_sge_rd = dev_attr->max_qp_sges;
ib_attr->max_cq = dev_attr->max_cq;
ib_attr->max_cqe = dev_attr->max_cq_wqes;
ib_attr->max_mr = dev_attr->max_mr;
ib_attr->max_pd = dev_attr->max_pd;
ib_attr->max_qp_rd_atom = dev_attr->max_qp_rd_atom;
ib_attr->max_qp_init_rd_atom = dev_attr->max_qp_init_rd_atom;
ib_attr->atomic_cap = IB_ATOMIC_NONE;
ib_attr->masked_atomic_cap = IB_ATOMIC_NONE;
if (dev_attr->is_atomic) {
ib_attr->atomic_cap = IB_ATOMIC_GLOB;
ib_attr->masked_atomic_cap = IB_ATOMIC_GLOB;
}
ib_attr->max_ee_rd_atom = 0;
ib_attr->max_res_rd_atom = 0;
ib_attr->max_ee_init_rd_atom = 0;
ib_attr->max_ee = 0;
ib_attr->max_rdd = 0;
ib_attr->max_mw = dev_attr->max_mw;
ib_attr->max_raw_ipv6_qp = 0;
ib_attr->max_raw_ethy_qp = dev_attr->max_raw_ethy_qp;
ib_attr->max_mcast_grp = 0;
ib_attr->max_mcast_qp_attach = 0;
ib_attr->max_total_mcast_qp_attach = 0;
ib_attr->max_ah = dev_attr->max_ah;
ib_attr->max_srq = dev_attr->max_srq;
ib_attr->max_srq_wr = dev_attr->max_srq_wqes;
ib_attr->max_srq_sge = dev_attr->max_srq_sges;
ib_attr->max_fast_reg_page_list_len = MAX_PBL_LVL_1_PGS;
ib_attr->max_pkeys = 1;
ib_attr->local_ca_ack_delay = BNXT_RE_DEFAULT_ACK_DELAY;
if (_is_modify_qp_rate_limit_supported(dev_attr->dev_cap_flags2)) {
resp.packet_pacing_caps.qp_rate_limit_min =
dev_attr->rate_limit_min;
resp.packet_pacing_caps.qp_rate_limit_max =
dev_attr->rate_limit_max;
resp.packet_pacing_caps.supported_qpts =
1 << IB_QPT_RC;
}
if (udata)
return ib_respond_udata(udata, resp);
return 0;
}
int bnxt_re_modify_device(struct ib_device *ibdev,
int device_modify_mask,
struct ib_device_modify *device_modify)
{
ibdev_dbg(ibdev, "Modify device with mask 0x%x", device_modify_mask);
if (device_modify_mask & ~IB_DEVICE_MODIFY_NODE_DESC)
return -EOPNOTSUPP;
if (!(device_modify_mask & IB_DEVICE_MODIFY_NODE_DESC))
return 0;
memcpy(ibdev->node_desc, device_modify->node_desc, IB_DEVICE_NODE_DESC_MAX);
return 0;
}
int bnxt_re_query_port(struct ib_device *ibdev, u32 port_num,
struct ib_port_attr *port_attr)
{
struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibdev, ibdev);
struct bnxt_qplib_dev_attr *dev_attr = rdev->dev_attr;
int rc;
memset(port_attr, 0, sizeof(*port_attr));
if (netif_running(rdev->netdev) && netif_carrier_ok(rdev->netdev)) {
port_attr->state = IB_PORT_ACTIVE;
port_attr->phys_state = IB_PORT_PHYS_STATE_LINK_UP;
} else {
port_attr->state = IB_PORT_DOWN;
port_attr->phys_state = IB_PORT_PHYS_STATE_DISABLED;
}
port_attr->max_mtu = IB_MTU_4096;
port_attr->active_mtu = iboe_get_mtu(rdev->netdev->mtu);
port_attr->gid_tbl_len = (rdev->rcfw.roce_mirror ? (dev_attr->max_sgid - 1) :
dev_attr->max_sgid);
port_attr->port_cap_flags = IB_PORT_CM_SUP | IB_PORT_REINIT_SUP |
IB_PORT_DEVICE_MGMT_SUP |
IB_PORT_VENDOR_CLASS_SUP;
port_attr->ip_gids = true;
port_attr->max_msg_sz = (u32)BNXT_RE_MAX_MR_SIZE_LOW;
port_attr->bad_pkey_cntr = 0;
port_attr->qkey_viol_cntr = 0;
port_attr->pkey_tbl_len = dev_attr->max_pkey;
port_attr->lid = 0;
port_attr->sm_lid = 0;
port_attr->lmc = 0;
port_attr->max_vl_num = 4;
port_attr->sm_sl = 0;
port_attr->subnet_timeout = 0;
port_attr->init_type_reply = 0;
rc = ib_get_eth_speed(&rdev->ibdev, port_num, &port_attr->active_speed,
&port_attr->active_width);
return rc;
}
int bnxt_re_get_port_immutable(struct ib_device *ibdev, u32 port_num,
struct ib_port_immutable *immutable)
{
struct ib_port_attr port_attr;
if (bnxt_re_query_port(ibdev, port_num, &port_attr))
return -EINVAL;
immutable->pkey_tbl_len = port_attr.pkey_tbl_len;
immutable->gid_tbl_len = port_attr.gid_tbl_len;
immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE;
immutable->core_cap_flags |= RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP;
immutable->max_mad_size = IB_MGMT_MAD_SIZE;
return 0;
}
void bnxt_re_query_fw_str(struct ib_device *ibdev, char *str)
{
struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibdev, ibdev);
snprintf(str, IB_FW_VERSION_NAME_MAX, "%d.%d.%d.%d",
rdev->dev_attr->fw_ver[0], rdev->dev_attr->fw_ver[1],
rdev->dev_attr->fw_ver[2], rdev->dev_attr->fw_ver[3]);
}
int bnxt_re_query_pkey(struct ib_device *ibdev, u32 port_num,
u16 index, u16 *pkey)
{
if (index > 0)
return -EINVAL;
*pkey = IB_DEFAULT_PKEY_FULL;
return 0;
}
int bnxt_re_query_gid(struct ib_device *ibdev, u32 port_num,
int index, union ib_gid *gid)
{
struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibdev, ibdev);
int rc;
memset(gid, 0, sizeof(*gid));
rc = bnxt_qplib_get_sgid(&rdev->qplib_res,
&rdev->qplib_res.sgid_tbl, index,
(struct bnxt_qplib_gid *)gid);
return rc;
}
int bnxt_re_del_gid(const struct ib_gid_attr *attr, void **context)
{
int rc = 0;
struct bnxt_re_gid_ctx *ctx, **ctx_tbl;
struct bnxt_re_dev *rdev = to_bnxt_re_dev(attr->device, ibdev);
struct bnxt_qplib_sgid_tbl *sgid_tbl = &rdev->qplib_res.sgid_tbl;
struct bnxt_qplib_gid *gid_to_del;
u16 vlan_id = 0xFFFF;
ctx = *context;
if (!ctx)
return -EINVAL;
if (sgid_tbl->active) {
if (ctx->idx >= sgid_tbl->max)
return -EINVAL;
gid_to_del = &sgid_tbl->tbl[ctx->idx].gid;
vlan_id = sgid_tbl->tbl[ctx->idx].vlan_id;
if (ctx->idx == 0 &&
rdma_link_local_addr((struct in6_addr *)gid_to_del) &&
ctx->refcnt == 1 && rdev->gsi_ctx.gsi_sqp) {
ibdev_dbg(&rdev->ibdev,
"Trying to delete GID0 while QP1 is alive\n");
return -EFAULT;
}
ctx->refcnt--;
if (!ctx->refcnt) {
rc = bnxt_qplib_del_sgid(sgid_tbl, gid_to_del,
vlan_id, true);
if (rc) {
ibdev_err(&rdev->ibdev,
"Failed to remove GID: %#x", rc);
} else {
ctx_tbl = sgid_tbl->ctx;
ctx_tbl[ctx->idx] = NULL;
kfree(ctx);
}
}
} else {
return -EINVAL;
}
return rc;
}
int bnxt_re_add_gid(const struct ib_gid_attr *attr, void **context)
{
int rc;
u32 tbl_idx = 0;
u16 vlan_id = 0xFFFF;
struct bnxt_re_gid_ctx *ctx, **ctx_tbl;
struct bnxt_re_dev *rdev = to_bnxt_re_dev(attr->device, ibdev);
struct bnxt_qplib_sgid_tbl *sgid_tbl = &rdev->qplib_res.sgid_tbl;
rc = rdma_read_gid_l2_fields(attr, &vlan_id, NULL);
if (rc)
return rc;
rc = bnxt_qplib_add_sgid(sgid_tbl, (struct bnxt_qplib_gid *)&attr->gid,
rdev->qplib_res.netdev->dev_addr,
vlan_id, true, &tbl_idx, false, 0);
if (rc == -EALREADY) {
ctx_tbl = sgid_tbl->ctx;
ctx_tbl[tbl_idx]->refcnt++;
*context = ctx_tbl[tbl_idx];
return 0;
}
if (rc < 0) {
ibdev_err(&rdev->ibdev, "Failed to add GID: %#x", rc);
return rc;
}
ctx = kmalloc_obj(*ctx);
if (!ctx)
return -ENOMEM;
ctx_tbl = sgid_tbl->ctx;
ctx->idx = tbl_idx;
ctx->refcnt = 1;
ctx_tbl[tbl_idx] = ctx;
*context = ctx;
return rc;
}
enum rdma_link_layer bnxt_re_get_link_layer(struct ib_device *ibdev,
u32 port_num)
{
return IB_LINK_LAYER_ETHERNET;
}
#define BNXT_RE_FENCE_PBL_SIZE DIV_ROUND_UP(BNXT_RE_FENCE_BYTES, PAGE_SIZE)
static void bnxt_re_create_fence_wqe(struct bnxt_re_pd *pd)
{
struct bnxt_re_fence_data *fence = &pd->fence;
struct ib_mr *ib_mr = &fence->mr->ib_mr;
struct bnxt_qplib_swqe *wqe = &fence->bind_wqe;
struct bnxt_re_dev *rdev = pd->rdev;
if (bnxt_qplib_is_chip_gen_p5_p7(rdev->chip_ctx))
return;
memset(wqe, 0, sizeof(*wqe));
wqe->type = BNXT_QPLIB_SWQE_TYPE_BIND_MW;
wqe->wr_id = BNXT_QPLIB_FENCE_WRID;
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP;
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE;
wqe->bind.zero_based = false;
wqe->bind.parent_l_key = ib_mr->lkey;
wqe->bind.va = (u64)(unsigned long)fence->va;
wqe->bind.length = fence->size;
wqe->bind.access_cntl = __from_ib_access_flags(IB_ACCESS_REMOTE_READ);
wqe->bind.mw_type = SQ_BIND_MW_TYPE_TYPE1;
fence->bind_rkey = ib_inc_rkey(fence->mw->rkey);
}
static int bnxt_re_bind_fence_mw(struct bnxt_qplib_qp *qplib_qp)
{
struct bnxt_re_qp *qp = container_of(qplib_qp, struct bnxt_re_qp,
qplib_qp);
struct ib_pd *ib_pd = qp->ib_qp.pd;
struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
struct bnxt_re_fence_data *fence = &pd->fence;
struct bnxt_qplib_swqe *fence_wqe = &fence->bind_wqe;
struct bnxt_qplib_swqe wqe;
int rc;
memcpy(&wqe, fence_wqe, sizeof(wqe));
wqe.bind.r_key = fence->bind_rkey;
fence->bind_rkey = ib_inc_rkey(fence->bind_rkey);
ibdev_dbg(&qp->rdev->ibdev,
"Posting bind fence-WQE: rkey: %#x QP: %d PD: %p\n",
wqe.bind.r_key, qp->qplib_qp.id, pd);
rc = bnxt_qplib_post_send(&qp->qplib_qp, &wqe);
if (rc) {
ibdev_err(&qp->rdev->ibdev, "Failed to bind fence-WQE\n");
return rc;
}
bnxt_qplib_post_send_db(&qp->qplib_qp);
return rc;
}
static void bnxt_re_destroy_fence_mr(struct bnxt_re_pd *pd)
{
struct bnxt_re_fence_data *fence = &pd->fence;
struct bnxt_re_dev *rdev = pd->rdev;
struct device *dev = &rdev->en_dev->pdev->dev;
struct bnxt_re_mr *mr = fence->mr;
if (bnxt_qplib_is_chip_gen_p5_p7(rdev->chip_ctx))
return;
if (fence->mw) {
bnxt_re_dealloc_mw(fence->mw);
fence->mw = NULL;
}
if (mr) {
if (mr->ib_mr.rkey)
bnxt_qplib_dereg_mrw(&rdev->qplib_res, &mr->qplib_mr,
true);
if (mr->ib_mr.lkey)
bnxt_qplib_free_mrw(&rdev->qplib_res, &mr->qplib_mr);
kfree(mr);
fence->mr = NULL;
}
if (fence->dma_addr) {
dma_unmap_single(dev, fence->dma_addr, BNXT_RE_FENCE_BYTES,
DMA_BIDIRECTIONAL);
fence->dma_addr = 0;
}
}
static int bnxt_re_create_fence_mr(struct bnxt_re_pd *pd)
{
int mr_access_flags = IB_ACCESS_LOCAL_WRITE | IB_ACCESS_MW_BIND;
struct bnxt_re_fence_data *fence = &pd->fence;
struct bnxt_re_dev *rdev = pd->rdev;
struct device *dev = &rdev->en_dev->pdev->dev;
struct bnxt_re_mr *mr = NULL;
dma_addr_t dma_addr = 0;
struct ib_mw *mw;
int rc;
if (bnxt_qplib_is_chip_gen_p5_p7(rdev->chip_ctx))
return 0;
dma_addr = dma_map_single(dev, fence->va, BNXT_RE_FENCE_BYTES,
DMA_BIDIRECTIONAL);
rc = dma_mapping_error(dev, dma_addr);
if (rc) {
ibdev_err(&rdev->ibdev, "Failed to dma-map fence-MR-mem\n");
rc = -EIO;
fence->dma_addr = 0;
goto fail;
}
fence->dma_addr = dma_addr;
mr = kzalloc_obj(*mr);
if (!mr) {
rc = -ENOMEM;
goto fail;
}
fence->mr = mr;
mr->rdev = rdev;
mr->qplib_mr.pd = &pd->qplib_pd;
mr->qplib_mr.type = CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR;
mr->qplib_mr.access_flags = __from_ib_access_flags(mr_access_flags);
if (!_is_alloc_mr_unified(rdev->dev_attr->dev_cap_flags)) {
rc = bnxt_qplib_alloc_mrw(&rdev->qplib_res, &mr->qplib_mr);
if (rc) {
ibdev_err(&rdev->ibdev, "Failed to alloc fence-HW-MR\n");
goto fail;
}
mr->ib_mr.lkey = mr->qplib_mr.lkey;
} else {
mr->qplib_mr.flags = CMDQ_REGISTER_MR_FLAGS_ALLOC_MR;
}
mr->qplib_mr.va = (u64)(unsigned long)fence->va;
mr->qplib_mr.total_size = BNXT_RE_FENCE_BYTES;
rc = bnxt_qplib_reg_mr(&rdev->qplib_res, &mr->qplib_mr, NULL,
BNXT_RE_FENCE_PBL_SIZE, PAGE_SIZE,
_is_alloc_mr_unified(rdev->dev_attr->dev_cap_flags));
if (rc) {
ibdev_err(&rdev->ibdev, "Failed to register fence-MR\n");
goto fail;
}
mr->ib_mr.rkey = mr->qplib_mr.rkey;
mw = bnxt_re_alloc_mw(&pd->ib_pd, IB_MW_TYPE_1, NULL);
if (IS_ERR(mw)) {
ibdev_err(&rdev->ibdev,
"Failed to create fence-MW for PD: %p\n", pd);
rc = PTR_ERR(mw);
goto fail;
}
fence->mw = mw;
bnxt_re_create_fence_wqe(pd);
return 0;
fail:
bnxt_re_destroy_fence_mr(pd);
return rc;
}
struct bnxt_re_user_mmap_entry*
bnxt_re_mmap_entry_insert(struct bnxt_re_ucontext *uctx, u64 mem_offset,
enum bnxt_re_mmap_flag mmap_flag, u64 *offset)
{
struct bnxt_re_user_mmap_entry *entry;
int ret;
entry = kzalloc_obj(*entry);
if (!entry)
return NULL;
entry->mem_offset = mem_offset;
entry->mmap_flag = mmap_flag;
entry->uctx = uctx;
switch (mmap_flag) {
case BNXT_RE_MMAP_SH_PAGE:
ret = rdma_user_mmap_entry_insert_exact(&uctx->ib_uctx,
&entry->rdma_entry, PAGE_SIZE, 0);
break;
case BNXT_RE_MMAP_UC_DB:
case BNXT_RE_MMAP_WC_DB:
case BNXT_RE_MMAP_DBR_BAR:
case BNXT_RE_MMAP_DBR_PAGE:
case BNXT_RE_MMAP_TOGGLE_PAGE:
ret = rdma_user_mmap_entry_insert(&uctx->ib_uctx,
&entry->rdma_entry, PAGE_SIZE);
break;
default:
ret = -EINVAL;
break;
}
if (ret) {
kfree(entry);
return NULL;
}
if (offset)
*offset = rdma_user_mmap_get_offset(&entry->rdma_entry);
return entry;
}
int bnxt_re_dealloc_pd(struct ib_pd *ib_pd, struct ib_udata *udata)
{
struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
struct bnxt_re_dev *rdev = pd->rdev;
int ret;
ret = ib_is_udata_in_empty(udata);
if (ret)
return ret;
if (udata) {
rdma_user_mmap_entry_remove(pd->pd_db_mmap);
pd->pd_db_mmap = NULL;
}
bnxt_re_destroy_fence_mr(pd);
if (pd->qplib_pd.id) {
if (!bnxt_qplib_dealloc_pd(&rdev->qplib_res,
&rdev->qplib_res.pd_tbl,
&pd->qplib_pd))
atomic_dec(&rdev->stats.res.pd_count);
}
return ib_respond_empty_udata(udata);
}
int bnxt_re_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
{
struct ib_device *ibdev = ibpd->device;
struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibdev, ibdev);
struct bnxt_re_ucontext *ucntx = rdma_udata_to_drv_context(
udata, struct bnxt_re_ucontext, ib_uctx);
struct bnxt_re_pd *pd = container_of(ibpd, struct bnxt_re_pd, ib_pd);
struct bnxt_re_user_mmap_entry *entry = NULL;
u32 active_pds;
int rc = 0;
rc = ib_is_udata_in_empty(udata);
if (rc)
return rc;
pd->rdev = rdev;
if (bnxt_qplib_alloc_pd(&rdev->qplib_res, &pd->qplib_pd)) {
ibdev_err(&rdev->ibdev, "Failed to allocate HW PD");
rc = -ENOMEM;
goto fail;
}
if (udata) {
struct bnxt_re_pd_resp resp = {};
if (!ucntx->dpi.dbr) {
if (bnxt_qplib_alloc_dpi(&rdev->qplib_res,
&ucntx->dpi, ucntx, BNXT_QPLIB_DPI_TYPE_UC)) {
rc = -ENOMEM;
goto dbfail;
}
}
resp.pdid = pd->qplib_pd.id;
resp.dpi = ucntx->dpi.dpi;
entry = bnxt_re_mmap_entry_insert(ucntx, (u64)ucntx->dpi.umdbr,
BNXT_RE_MMAP_UC_DB, &resp.dbr);
if (!entry) {
rc = -ENOMEM;
goto dbfail;
}
pd->pd_db_mmap = &entry->rdma_entry;
rc = ib_respond_udata(udata, resp);
if (rc) {
rdma_user_mmap_entry_remove(pd->pd_db_mmap);
rc = -EFAULT;
goto dbfail;
}
}
if (!udata)
if (bnxt_re_create_fence_mr(pd))
ibdev_warn(&rdev->ibdev,
"Failed to create Fence-MR\n");
active_pds = atomic_inc_return(&rdev->stats.res.pd_count);
if (active_pds > rdev->stats.res.pd_watermark)
rdev->stats.res.pd_watermark = active_pds;
return 0;
dbfail:
bnxt_qplib_dealloc_pd(&rdev->qplib_res, &rdev->qplib_res.pd_tbl,
&pd->qplib_pd);
fail:
return rc;
}
int bnxt_re_destroy_ah(struct ib_ah *ib_ah, u32 flags)
{
struct bnxt_re_ah *ah = container_of(ib_ah, struct bnxt_re_ah, ib_ah);
struct bnxt_re_dev *rdev = ah->rdev;
bool block = true;
int rc;
block = !(flags & RDMA_DESTROY_AH_SLEEPABLE);
rc = bnxt_qplib_destroy_ah(&rdev->qplib_res, &ah->qplib_ah, block);
if (BNXT_RE_CHECK_RC(rc)) {
if (rc == -ETIMEDOUT)
rc = 0;
else
goto fail;
}
atomic_dec(&rdev->stats.res.ah_count);
fail:
return rc;
}
static u8 bnxt_re_stack_to_dev_nw_type(enum rdma_network_type ntype)
{
u8 nw_type;
switch (ntype) {
case RDMA_NETWORK_IPV4:
nw_type = CMDQ_CREATE_AH_TYPE_V2IPV4;
break;
case RDMA_NETWORK_IPV6:
nw_type = CMDQ_CREATE_AH_TYPE_V2IPV6;
break;
default:
nw_type = CMDQ_CREATE_AH_TYPE_V1;
break;
}
return nw_type;
}
int bnxt_re_create_ah(struct ib_ah *ib_ah, struct rdma_ah_init_attr *init_attr,
struct ib_udata *udata)
{
struct ib_pd *ib_pd = ib_ah->pd;
struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
struct rdma_ah_attr *ah_attr = init_attr->ah_attr;
const struct ib_global_route *grh = rdma_ah_read_grh(ah_attr);
struct bnxt_re_dev *rdev = pd->rdev;
const struct ib_gid_attr *sgid_attr;
struct bnxt_re_gid_ctx *ctx;
struct bnxt_re_ah *ah = container_of(ib_ah, struct bnxt_re_ah, ib_ah);
u32 active_ahs;
u8 nw_type;
int rc;
rc = ib_is_udata_in_empty(udata);
if (rc)
return rc;
if (!(rdma_ah_get_ah_flags(ah_attr) & IB_AH_GRH)) {
ibdev_err(&rdev->ibdev, "Failed to alloc AH: GRH not set");
return -EINVAL;
}
ah->rdev = rdev;
ah->qplib_ah.pd = &pd->qplib_pd;
memcpy(ah->qplib_ah.dgid.data, grh->dgid.raw,
sizeof(union ib_gid));
sgid_attr = grh->sgid_attr;
ctx = rdma_read_gid_hw_context(sgid_attr);
ah->qplib_ah.sgid_index = ctx->idx;
ah->qplib_ah.host_sgid_index = grh->sgid_index;
ah->qplib_ah.traffic_class = grh->traffic_class;
ah->qplib_ah.flow_label = grh->flow_label;
ah->qplib_ah.hop_limit = grh->hop_limit;
ah->qplib_ah.sl = rdma_ah_get_sl(ah_attr);
nw_type = rdma_gid_attr_network_type(sgid_attr);
ah->qplib_ah.nw_type = bnxt_re_stack_to_dev_nw_type(nw_type);
memcpy(ah->qplib_ah.dmac, ah_attr->roce.dmac, ETH_ALEN);
rc = bnxt_qplib_create_ah(&rdev->qplib_res, &ah->qplib_ah,
!(init_attr->flags &
RDMA_CREATE_AH_SLEEPABLE));
if (rc) {
ibdev_err(&rdev->ibdev, "Failed to allocate HW AH");
return rc;
}
if (udata) {
struct bnxt_re_ucontext *uctx = rdma_udata_to_drv_context(
udata, struct bnxt_re_ucontext, ib_uctx);
unsigned long flag;
u32 *wrptr;
spin_lock_irqsave(&uctx->sh_lock, flag);
wrptr = (u32 *)(uctx->shpg + BNXT_RE_AVID_OFFT);
*wrptr = ah->qplib_ah.id;
wmb();
spin_unlock_irqrestore(&uctx->sh_lock, flag);
}
active_ahs = atomic_inc_return(&rdev->stats.res.ah_count);
if (active_ahs > rdev->stats.res.ah_watermark)
rdev->stats.res.ah_watermark = active_ahs;
return ib_respond_empty_udata(udata);
}
int bnxt_re_query_ah(struct ib_ah *ib_ah, struct rdma_ah_attr *ah_attr)
{
struct bnxt_re_ah *ah = container_of(ib_ah, struct bnxt_re_ah, ib_ah);
ah_attr->type = ib_ah->type;
rdma_ah_set_sl(ah_attr, ah->qplib_ah.sl);
memcpy(ah_attr->roce.dmac, ah->qplib_ah.dmac, ETH_ALEN);
rdma_ah_set_grh(ah_attr, NULL, 0,
ah->qplib_ah.host_sgid_index,
0, ah->qplib_ah.traffic_class);
rdma_ah_set_dgid_raw(ah_attr, ah->qplib_ah.dgid.data);
rdma_ah_set_port_num(ah_attr, 1);
rdma_ah_set_static_rate(ah_attr, 0);
return 0;
}
unsigned long bnxt_re_lock_cqs(struct bnxt_re_qp *qp)
__acquires(&qp->scq->cq_lock) __acquires(&qp->rcq->cq_lock)
{
unsigned long flags;
spin_lock_irqsave(&qp->scq->cq_lock, flags);
if (qp->rcq != qp->scq)
spin_lock(&qp->rcq->cq_lock);
else
__acquire(&qp->rcq->cq_lock);
return flags;
}
void bnxt_re_unlock_cqs(struct bnxt_re_qp *qp,
unsigned long flags)
__releases(&qp->scq->cq_lock) __releases(&qp->rcq->cq_lock)
{
if (qp->rcq != qp->scq)
spin_unlock(&qp->rcq->cq_lock);
else
__release(&qp->rcq->cq_lock);
spin_unlock_irqrestore(&qp->scq->cq_lock, flags);
}
static void bnxt_re_destroy_gsi_sqp(struct bnxt_re_qp *qp)
{
struct bnxt_re_qp *gsi_sqp;
struct bnxt_re_ah *gsi_sah;
struct bnxt_re_dev *rdev;
int rc;
rdev = qp->rdev;
gsi_sqp = rdev->gsi_ctx.gsi_sqp;
gsi_sah = rdev->gsi_ctx.gsi_sah;
ibdev_dbg(&rdev->ibdev, "Destroy the shadow AH\n");
bnxt_qplib_destroy_ah(&rdev->qplib_res,
&gsi_sah->qplib_ah,
true);
atomic_dec(&rdev->stats.res.ah_count);
bnxt_qplib_clean_qp(&qp->qplib_qp);
ibdev_dbg(&rdev->ibdev, "Destroy the shadow QP\n");
rc = bnxt_qplib_destroy_qp(&rdev->qplib_res, &gsi_sqp->qplib_qp);
if (rc)
ibdev_err(&rdev->ibdev, "Destroy Shadow QP failed");
bnxt_qplib_free_qp_res(&rdev->qplib_res, &gsi_sqp->qplib_qp);
mutex_lock(&rdev->qp_lock);
list_del(&gsi_sqp->list);
mutex_unlock(&rdev->qp_lock);
atomic_dec(&rdev->stats.res.qp_count);
kfree(rdev->gsi_ctx.sqp_tbl);
kfree(gsi_sah);
kfree(gsi_sqp);
rdev->gsi_ctx.gsi_sqp = NULL;
rdev->gsi_ctx.gsi_sah = NULL;
rdev->gsi_ctx.sqp_tbl = NULL;
}
static void bnxt_re_del_unique_gid(struct bnxt_re_dev *rdev)
{
int rc;
if (!rdev->rcfw.roce_mirror)
return;
rc = bnxt_qplib_del_sgid(&rdev->qplib_res.sgid_tbl,
(struct bnxt_qplib_gid *)&rdev->ugid,
0xFFFF, true);
if (rc)
dev_err(rdev_to_dev(rdev), "Failed to delete unique GID, rc: %d\n", rc);
}
static void bnxt_re_qp_free_umem(struct bnxt_re_qp *qp)
{
ib_umem_release(qp->rumem);
ib_umem_release(qp->sumem);
}
int bnxt_re_destroy_qp(struct ib_qp *ib_qp, struct ib_udata *udata)
{
struct bnxt_re_qp *qp = container_of(ib_qp, struct bnxt_re_qp, ib_qp);
struct bnxt_qplib_qp *qplib_qp = &qp->qplib_qp;
struct bnxt_re_dev *rdev = qp->rdev;
struct bnxt_qplib_nq *scq_nq = NULL;
struct bnxt_qplib_nq *rcq_nq = NULL;
unsigned int flags;
int rc;
rc = ib_is_udata_in_empty(udata);
if (rc)
return rc;
bnxt_re_debug_rem_qpinfo(rdev, qp);
bnxt_qplib_flush_cqn_wq(&qp->qplib_qp);
rc = bnxt_qplib_destroy_qp(&rdev->qplib_res, &qp->qplib_qp);
if (rc)
ibdev_err(&rdev->ibdev, "Failed to destroy HW QP");
if (qp->dbr_obj)
kref_put(&qp->dbr_obj->usecnt, bnxt_re_dbr_kref_release);
if (rdma_is_kernel_res(&qp->ib_qp.res)) {
flags = bnxt_re_lock_cqs(qp);
bnxt_qplib_clean_qp(&qp->qplib_qp);
bnxt_re_unlock_cqs(qp, flags);
}
bnxt_qplib_free_qp_res(&rdev->qplib_res, &qp->qplib_qp);
if (ib_qp->qp_type == IB_QPT_GSI && rdev->gsi_ctx.gsi_sqp)
bnxt_re_destroy_gsi_sqp(qp);
mutex_lock(&rdev->qp_lock);
list_del(&qp->list);
mutex_unlock(&rdev->qp_lock);
atomic_dec(&rdev->stats.res.qp_count);
if (qp->qplib_qp.type == CMDQ_CREATE_QP_TYPE_RC)
atomic_dec(&rdev->stats.res.rc_qp_count);
else if (qp->qplib_qp.type == CMDQ_CREATE_QP_TYPE_UD)
atomic_dec(&rdev->stats.res.ud_qp_count);
if (qp->qplib_qp.type == CMDQ_CREATE_QP_TYPE_RAW_ETHERTYPE)
bnxt_re_del_unique_gid(rdev);
bnxt_re_qp_free_umem(qp);
scq_nq = qplib_qp->scq->nq;
rcq_nq = qplib_qp->rcq->nq;
bnxt_re_synchronize_nq(scq_nq);
if (scq_nq != rcq_nq)
bnxt_re_synchronize_nq(rcq_nq);
return ib_respond_empty_udata(udata);
}
static u8 __from_ib_qp_type(enum ib_qp_type type)
{
switch (type) {
case IB_QPT_GSI:
return CMDQ_CREATE_QP1_TYPE_GSI;
case IB_QPT_RC:
return CMDQ_CREATE_QP_TYPE_RC;
case IB_QPT_UD:
return CMDQ_CREATE_QP_TYPE_UD;
case IB_QPT_RAW_PACKET:
return CMDQ_CREATE_QP_TYPE_RAW_ETHERTYPE;
default:
return IB_QPT_MAX;
}
}
static u16 bnxt_re_setup_rwqe_size(struct bnxt_qplib_qp *qplqp,
int rsge, int max)
{
if (qplqp->wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC)
rsge = max;
return bnxt_re_get_rwqe_size(rsge);
}
static u16 bnxt_re_get_wqe_size(int ilsize, int nsge)
{
u16 wqe_size, calc_ils;
wqe_size = bnxt_re_get_swqe_size(nsge);
if (ilsize) {
calc_ils = sizeof(struct sq_send_hdr) + ilsize;
wqe_size = max_t(u16, calc_ils, wqe_size);
wqe_size = ALIGN(wqe_size, sizeof(struct sq_send_hdr));
}
return wqe_size;
}
static int bnxt_re_setup_swqe_size(struct bnxt_re_qp *qp,
struct ib_qp_init_attr *init_attr)
{
struct bnxt_qplib_dev_attr *dev_attr;
struct bnxt_qplib_qp *qplqp;
struct bnxt_re_dev *rdev;
struct bnxt_qplib_q *sq;
int align, ilsize;
rdev = qp->rdev;
qplqp = &qp->qplib_qp;
sq = &qplqp->sq;
dev_attr = rdev->dev_attr;
align = sizeof(struct sq_send_hdr);
ilsize = ALIGN(init_attr->cap.max_inline_data, align);
if (qplqp->wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC) {
sq->wqe_size = bnxt_re_get_swqe_size(BNXT_STATIC_MAX_SGE);
sq->max_sge = BNXT_STATIC_MAX_SGE;
} else {
sq->wqe_size = bnxt_re_get_wqe_size(ilsize, sq->max_sge);
if (sq->wqe_size > bnxt_re_get_swqe_size(dev_attr->max_qp_sges))
return -EINVAL;
}
if (init_attr->cap.max_inline_data) {
qplqp->max_inline_data = sq->wqe_size -
sizeof(struct sq_send_hdr);
init_attr->cap.max_inline_data = qplqp->max_inline_data;
}
return 0;
}
static int bnxt_re_setup_sginfo(struct bnxt_re_dev *rdev,
struct ib_umem *umem,
struct bnxt_qplib_sg_info *sginfo)
{
unsigned long page_size;
if (!umem)
return -EINVAL;
page_size = ib_umem_find_best_pgsz(umem, SZ_4K, 0);
if (!page_size || page_size != SZ_4K)
return -EINVAL;
sginfo->umem = umem;
sginfo->npages = ib_umem_num_dma_blocks(umem, page_size);
sginfo->pgsize = page_size;
sginfo->pgshft = __builtin_ctz(page_size);
return 0;
}
static int bnxt_re_get_psn_bytes(struct bnxt_re_dev *rdev,
struct bnxt_re_ucontext *cntx,
struct bnxt_qplib_qp *qplib_qp,
struct bnxt_re_qp_req *ureq,
bool fixed_que_attr)
{
int psn_sz, psn_nume;
if (rdev->dev_attr &&
_is_host_msn_table(rdev->dev_attr->dev_cap_flags2))
psn_sz = sizeof(struct sq_msn_search);
else
psn_sz = bnxt_qplib_is_chip_gen_p5_p7(rdev->chip_ctx) ?
sizeof(struct sq_psn_search_ext) :
sizeof(struct sq_psn_search);
if (!fixed_que_attr) {
if (cntx && bnxt_re_is_var_size_supported(rdev, cntx)) {
psn_nume = ureq->sq_slots;
} else {
psn_nume = (qplib_qp->wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC) ?
qplib_qp->sq.max_wqe : ((qplib_qp->sq.max_wqe * qplib_qp->sq.wqe_size) /
sizeof(struct bnxt_qplib_sge));
}
if (_is_host_msn_table(rdev->qplib_res.dattr->dev_cap_flags2))
psn_nume = roundup_pow_of_two(psn_nume);
} else {
psn_nume = ureq->sq_npsn;
}
return psn_nume * psn_sz;
}
static int bnxt_re_init_user_qp(struct bnxt_re_dev *rdev, struct bnxt_re_pd *pd,
struct bnxt_re_qp *qp, struct bnxt_re_ucontext *cntx,
struct bnxt_re_qp_req *ureq,
bool fixed_que_attr,
struct bnxt_re_dbr_obj *dbr_obj,
struct uverbs_attr_bundle *attrs)
{
struct bnxt_qplib_qp *qplib_qp;
struct ib_umem *umem;
int bytes;
int rc;
qplib_qp = &qp->qplib_qp;
bytes = (qplib_qp->sq.max_wqe * qplib_qp->sq.wqe_size);
if (qplib_qp->type == CMDQ_CREATE_QP_TYPE_RC)
bytes += bnxt_re_get_psn_bytes(rdev, cntx, qplib_qp, ureq, fixed_que_attr);
bytes = PAGE_ALIGN(bytes);
umem = ib_umem_get_attr_or_va(&rdev->ibdev, attrs,
UVERBS_ATTR_CREATE_QP_SQ_BUF_UMEM,
ureq->qpsva, bytes, IB_ACCESS_LOCAL_WRITE);
if (IS_ERR(umem))
return PTR_ERR(umem);
qp->sumem = umem;
rc = bnxt_re_setup_sginfo(rdev, qp->sumem, &qplib_qp->sq.sg_info);
if (rc)
goto fail;
if (qp->qplib_qp.srq)
goto done;
bytes = (qplib_qp->rq.max_wqe * qplib_qp->rq.wqe_size);
bytes = PAGE_ALIGN(bytes);
umem = ib_umem_get_attr_or_va(&rdev->ibdev, attrs,
UVERBS_ATTR_CREATE_QP_RQ_BUF_UMEM,
ureq->qprva, bytes, IB_ACCESS_LOCAL_WRITE);
if (IS_ERR(umem)) {
rc = PTR_ERR(umem);
goto fail;
}
qp->rumem = umem;
rc = bnxt_re_setup_sginfo(rdev, qp->rumem, &qplib_qp->rq.sg_info);
if (rc)
goto rqfail;
done:
if (dbr_obj)
qplib_qp->dpi = &dbr_obj->dpi;
else
qplib_qp->dpi = &cntx->dpi;
qplib_qp->qp_handle = ureq->qp_handle;
qplib_qp->is_user = true;
return 0;
rqfail:
ib_umem_release(qp->rumem);
qp->rumem = NULL;
memset(&qplib_qp->rq.sg_info, 0, sizeof(qplib_qp->rq.sg_info));
fail:
ib_umem_release(qp->sumem);
qp->sumem = NULL;
memset(&qplib_qp->sq.sg_info, 0, sizeof(qplib_qp->sq.sg_info));
return rc;
}
static struct bnxt_re_ah *bnxt_re_create_shadow_qp_ah
(struct bnxt_re_pd *pd,
struct bnxt_qplib_res *qp1_res,
struct bnxt_qplib_qp *qp1_qp)
{
struct bnxt_re_dev *rdev = pd->rdev;
struct bnxt_re_ah *ah;
union ib_gid sgid;
int rc;
ah = kzalloc_obj(*ah);
if (!ah)
return NULL;
ah->rdev = rdev;
ah->qplib_ah.pd = &pd->qplib_pd;
rc = bnxt_re_query_gid(&rdev->ibdev, 1, 0, &sgid);
if (rc)
goto fail;
memcpy(ah->qplib_ah.dgid.data, &sgid.raw,
sizeof(union ib_gid));
ah->qplib_ah.sgid_index = 0;
ah->qplib_ah.traffic_class = 0;
ah->qplib_ah.flow_label = 0;
ah->qplib_ah.hop_limit = 1;
ah->qplib_ah.sl = 0;
ether_addr_copy(ah->qplib_ah.dmac, rdev->netdev->dev_addr);
rc = bnxt_qplib_create_ah(&rdev->qplib_res, &ah->qplib_ah, false);
if (rc) {
ibdev_err(&rdev->ibdev,
"Failed to allocate HW AH for Shadow QP");
goto fail;
}
atomic_inc(&rdev->stats.res.ah_count);
return ah;
fail:
kfree(ah);
return NULL;
}
static int bnxt_re_qp_alloc_init_xrrq(struct bnxt_re_qp *qp)
{
struct bnxt_qplib_res *res = &qp->rdev->qplib_res;
struct bnxt_qplib_qp *qplib_qp = &qp->qplib_qp;
struct bnxt_qplib_hwq_attr hwq_attr = {};
struct bnxt_qplib_sg_info sginfo = {};
struct bnxt_qplib_hwq *irrq, *orrq;
int rc, req_size;
orrq = &qplib_qp->orrq;
orrq->max_elements =
ORD_LIMIT_TO_ORRQ_SLOTS(qplib_qp->max_rd_atomic);
req_size = orrq->max_elements *
BNXT_QPLIB_MAX_ORRQE_ENTRY_SIZE + PAGE_SIZE - 1;
req_size &= ~(PAGE_SIZE - 1);
sginfo.pgsize = req_size;
sginfo.pgshft = PAGE_SHIFT;
hwq_attr.res = res;
hwq_attr.sginfo = &sginfo;
hwq_attr.depth = orrq->max_elements;
hwq_attr.stride = BNXT_QPLIB_MAX_ORRQE_ENTRY_SIZE;
hwq_attr.aux_stride = 0;
hwq_attr.aux_depth = 0;
hwq_attr.type = HWQ_TYPE_CTX;
rc = bnxt_qplib_alloc_init_hwq(orrq, &hwq_attr);
if (rc)
return rc;
irrq = &qplib_qp->irrq;
irrq->max_elements =
IRD_LIMIT_TO_IRRQ_SLOTS(qplib_qp->max_dest_rd_atomic);
req_size = irrq->max_elements *
BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE + PAGE_SIZE - 1;
req_size &= ~(PAGE_SIZE - 1);
sginfo.pgsize = req_size;
hwq_attr.sginfo = &sginfo;
hwq_attr.depth = irrq->max_elements;
hwq_attr.stride = BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE;
rc = bnxt_qplib_alloc_init_hwq(irrq, &hwq_attr);
if (rc)
goto free_orrq_hwq;
return 0;
free_orrq_hwq:
bnxt_qplib_free_hwq(res, orrq);
return rc;
}
static int bnxt_re_setup_qp_hwqs(struct bnxt_re_qp *qp, bool fixed_que_attr)
{
struct bnxt_qplib_res *res = &qp->rdev->qplib_res;
struct bnxt_qplib_qp *qplib_qp = &qp->qplib_qp;
struct bnxt_qplib_hwq_attr hwq_attr = {};
struct bnxt_qplib_q *sq = &qplib_qp->sq;
struct bnxt_qplib_q *rq = &qplib_qp->rq;
u8 wqe_mode = qplib_qp->wqe_mode;
u8 pg_sz_lvl;
int rc;
hwq_attr.res = res;
hwq_attr.sginfo = &sq->sg_info;
hwq_attr.stride = bnxt_qplib_get_stride();
hwq_attr.aux_stride = qplib_qp->psn_sz;
if (!fixed_que_attr) {
hwq_attr.depth = bnxt_qplib_get_depth(sq, wqe_mode, true);
hwq_attr.aux_depth = (qplib_qp->psn_sz) ?
bnxt_qplib_set_sq_size(sq, wqe_mode) : 0;
if (qplib_qp->is_host_msn_tbl && qplib_qp->psn_sz)
hwq_attr.aux_depth = qplib_qp->msn_tbl_sz;
} else {
hwq_attr.depth = sq->max_wqe;
hwq_attr.aux_depth = qplib_qp->msn_tbl_sz;
}
hwq_attr.type = HWQ_TYPE_QUEUE;
rc = bnxt_qplib_alloc_init_hwq(&sq->hwq, &hwq_attr);
if (rc)
return rc;
pg_sz_lvl = bnxt_qplib_base_pg_size(&sq->hwq) << CMDQ_CREATE_QP_SQ_PG_SIZE_SFT;
pg_sz_lvl |= ((sq->hwq.level & CMDQ_CREATE_QP_SQ_LVL_MASK) <<
CMDQ_CREATE_QP_SQ_LVL_SFT);
sq->hwq.pg_sz_lvl = pg_sz_lvl;
if (qplib_qp->srq)
goto done;
hwq_attr.res = res;
hwq_attr.sginfo = &rq->sg_info;
hwq_attr.stride = bnxt_qplib_get_stride();
hwq_attr.depth = bnxt_qplib_get_depth(rq, qplib_qp->wqe_mode, false);
hwq_attr.aux_stride = 0;
hwq_attr.aux_depth = 0;
hwq_attr.type = HWQ_TYPE_QUEUE;
rc = bnxt_qplib_alloc_init_hwq(&rq->hwq, &hwq_attr);
if (rc)
goto free_sq_hwq;
pg_sz_lvl = bnxt_qplib_base_pg_size(&rq->hwq) <<
CMDQ_CREATE_QP_RQ_PG_SIZE_SFT;
pg_sz_lvl |= ((rq->hwq.level & CMDQ_CREATE_QP_RQ_LVL_MASK) <<
CMDQ_CREATE_QP_RQ_LVL_SFT);
rq->hwq.pg_sz_lvl = pg_sz_lvl;
done:
if (qplib_qp->psn_sz) {
rc = bnxt_re_qp_alloc_init_xrrq(qp);
if (rc)
goto free_rq_hwq;
}
return 0;
free_rq_hwq:
bnxt_qplib_free_hwq(res, &rq->hwq);
free_sq_hwq:
bnxt_qplib_free_hwq(res, &sq->hwq);
return rc;
}
static struct bnxt_re_qp *bnxt_re_create_shadow_qp
(struct bnxt_re_pd *pd,
struct bnxt_qplib_res *qp1_res,
struct bnxt_qplib_qp *qp1_qp)
{
struct bnxt_re_dev *rdev = pd->rdev;
struct bnxt_re_qp *qp;
int rc;
qp = kzalloc_obj(*qp);
if (!qp)
return NULL;
qp->rdev = rdev;
ether_addr_copy(qp->qplib_qp.smac, rdev->netdev->dev_addr);
qp->qplib_qp.pd = &pd->qplib_pd;
qp->qplib_qp.qp_handle = (u64)(unsigned long)(&qp->qplib_qp);
qp->qplib_qp.type = IB_QPT_UD;
qp->qplib_qp.cctx = rdev->chip_ctx;
qp->qplib_qp.max_inline_data = 0;
qp->qplib_qp.sig_type = true;
qp->qplib_qp.sq.wqe_size = bnxt_re_get_wqe_size(0, 6);
qp->qplib_qp.sq.max_wqe = qp1_qp->rq.max_wqe;
qp->qplib_qp.sq.max_sw_wqe = qp1_qp->rq.max_wqe;
qp->qplib_qp.sq.max_sge = 2;
qp->qplib_qp.sq.q_full_delta = 1;
qp->qplib_qp.sq.sg_info.pgsize = PAGE_SIZE;
qp->qplib_qp.sq.sg_info.pgshft = PAGE_SHIFT;
qp->qplib_qp.scq = qp1_qp->scq;
qp->qplib_qp.rcq = qp1_qp->rcq;
qp->qplib_qp.rq.wqe_size = bnxt_re_get_rwqe_size(6);
qp->qplib_qp.rq.max_wqe = qp1_qp->rq.max_wqe;
qp->qplib_qp.rq.max_sw_wqe = qp1_qp->rq.max_wqe;
qp->qplib_qp.rq.max_sge = qp1_qp->rq.max_sge;
qp->qplib_qp.rq.q_full_delta = 1;
qp->qplib_qp.rq.sg_info.pgsize = PAGE_SIZE;
qp->qplib_qp.rq.sg_info.pgshft = PAGE_SHIFT;
qp->qplib_qp.mtu = qp1_qp->mtu;
qp->qplib_qp.sq_hdr_buf_size = 0;
qp->qplib_qp.rq_hdr_buf_size = BNXT_QPLIB_MAX_GRH_HDR_SIZE_IPV6;
qp->qplib_qp.dpi = &rdev->dpi_privileged;
rc = bnxt_re_setup_qp_hwqs(qp, false);
if (rc)
goto fail;
rc = bnxt_qplib_create_qp(qp1_res, &qp->qplib_qp);
if (rc)
goto free_hwq;
spin_lock_init(&qp->sq_lock);
INIT_LIST_HEAD(&qp->list);
mutex_lock(&rdev->qp_lock);
list_add_tail(&qp->list, &rdev->qp_list);
atomic_inc(&rdev->stats.res.qp_count);
mutex_unlock(&rdev->qp_lock);
return qp;
free_hwq:
bnxt_qplib_free_qp_res(&rdev->qplib_res, &qp->qplib_qp);
fail:
kfree(qp);
return NULL;
}
static int bnxt_re_init_rq_attr(struct bnxt_re_qp *qp,
struct ib_qp_init_attr *init_attr,
struct bnxt_re_ucontext *uctx,
bool fixed_que_attr)
{
struct bnxt_qplib_dev_attr *dev_attr;
struct bnxt_qplib_qp *qplqp;
struct bnxt_re_dev *rdev;
struct bnxt_qplib_q *rq;
rdev = qp->rdev;
qplqp = &qp->qplib_qp;
rq = &qplqp->rq;
dev_attr = rdev->dev_attr;
if (init_attr->srq) {
struct bnxt_re_srq *srq;
srq = container_of(init_attr->srq, struct bnxt_re_srq, ib_srq);
qplqp->srq = &srq->qplib_srq;
rq->max_wqe = 0;
} else {
rq->max_sge = init_attr->cap.max_recv_sge;
if (rq->max_sge > dev_attr->max_qp_sges)
rq->max_sge = dev_attr->max_qp_sges;
init_attr->cap.max_recv_sge = rq->max_sge;
rq->wqe_size = bnxt_re_setup_rwqe_size(qplqp, rq->max_sge,
dev_attr->max_qp_sges);
if (!fixed_que_attr) {
rq->max_wqe = bnxt_re_init_depth(init_attr->cap.max_recv_wr + 1,
dev_attr->max_qp_wqes + 1,
uctx);
} else {
rq->max_wqe = init_attr->cap.max_recv_wr;
}
rq->max_sw_wqe = rq->max_wqe;
rq->q_full_delta = 0;
rq->sg_info.pgsize = PAGE_SIZE;
rq->sg_info.pgshft = PAGE_SHIFT;
}
return 0;
}
static void bnxt_re_adjust_gsi_rq_attr(struct bnxt_re_qp *qp)
{
struct bnxt_qplib_dev_attr *dev_attr;
struct bnxt_qplib_qp *qplqp;
struct bnxt_re_dev *rdev;
rdev = qp->rdev;
qplqp = &qp->qplib_qp;
dev_attr = rdev->dev_attr;
if (!bnxt_qplib_is_chip_gen_p5_p7(rdev->chip_ctx)) {
qplqp->rq.max_sge = dev_attr->max_qp_sges;
if (qplqp->rq.max_sge > dev_attr->max_qp_sges)
qplqp->rq.max_sge = dev_attr->max_qp_sges;
qplqp->rq.max_sge = 6;
}
}
static int bnxt_re_init_sq_attr(struct bnxt_re_qp *qp,
struct ib_qp_init_attr *init_attr,
struct bnxt_re_ucontext *uctx,
struct bnxt_re_qp_req *ureq,
bool fixed_que_attr)
{
struct bnxt_qplib_dev_attr *dev_attr;
struct bnxt_qplib_qp *qplqp;
struct bnxt_re_dev *rdev;
struct bnxt_qplib_q *sq;
int diff = 0;
int rc;
rdev = qp->rdev;
qplqp = &qp->qplib_qp;
sq = &qplqp->sq;
dev_attr = rdev->dev_attr;
sq->max_sge = init_attr->cap.max_send_sge;
if (uctx && qplqp->wqe_mode == BNXT_QPLIB_WQE_MODE_VARIABLE) {
sq->max_wqe = ureq->sq_slots;
sq->max_sw_wqe = ureq->sq_slots;
sq->wqe_size = sizeof(struct sq_sge);
} else {
if (sq->max_sge > dev_attr->max_qp_sges) {
sq->max_sge = dev_attr->max_qp_sges;
init_attr->cap.max_send_sge = sq->max_sge;
}
rc = bnxt_re_setup_swqe_size(qp, init_attr);
if (rc)
return rc;
if (qplqp->wqe_mode != BNXT_QPLIB_WQE_MODE_VARIABLE)
diff = BNXT_QPLIB_RESERVED_QP_WRS;
sq->max_wqe = bnxt_re_init_depth(
init_attr->cap.max_send_wr + diff + 1,
dev_attr->max_qp_wqes + diff + 1, uctx);
if (qplqp->wqe_mode == BNXT_QPLIB_WQE_MODE_VARIABLE)
sq->max_sw_wqe = bnxt_qplib_get_depth(sq, qplqp->wqe_mode, true);
else
sq->max_sw_wqe = sq->max_wqe;
}
if (!fixed_que_attr) {
sq->q_full_delta = diff + 1;
qplqp->sq.q_full_delta -= 1;
} else {
sq->q_full_delta = 0;
}
qplqp->sq.sg_info.pgsize = PAGE_SIZE;
qplqp->sq.sg_info.pgshft = PAGE_SHIFT;
return 0;
}
static void bnxt_re_adjust_gsi_sq_attr(struct bnxt_re_qp *qp,
struct ib_qp_init_attr *init_attr,
struct bnxt_re_ucontext *uctx)
{
struct bnxt_qplib_dev_attr *dev_attr;
struct bnxt_qplib_qp *qplqp;
struct bnxt_re_dev *rdev;
rdev = qp->rdev;
qplqp = &qp->qplib_qp;
dev_attr = rdev->dev_attr;
if (!bnxt_qplib_is_chip_gen_p5_p7(rdev->chip_ctx)) {
qplqp->sq.max_wqe =
bnxt_re_init_depth(init_attr->cap.max_send_wr + 1,
dev_attr->max_qp_wqes + 1, uctx);
qplqp->sq.q_full_delta = qplqp->sq.max_wqe -
init_attr->cap.max_send_wr;
qplqp->sq.max_sge++;
if (qplqp->sq.max_sge > dev_attr->max_qp_sges)
qplqp->sq.max_sge = dev_attr->max_qp_sges;
}
}
static int bnxt_re_init_qp_type(struct bnxt_re_dev *rdev,
struct ib_qp_init_attr *init_attr)
{
struct bnxt_qplib_chip_ctx *chip_ctx;
int qptype;
chip_ctx = rdev->chip_ctx;
qptype = __from_ib_qp_type(init_attr->qp_type);
if (qptype == IB_QPT_MAX) {
ibdev_err(&rdev->ibdev, "QP type 0x%x not supported", qptype);
qptype = -EOPNOTSUPP;
goto out;
}
if (bnxt_qplib_is_chip_gen_p5_p7(chip_ctx) &&
init_attr->qp_type == IB_QPT_GSI)
qptype = CMDQ_CREATE_QP_TYPE_GSI;
out:
return qptype;
}
static void bnxt_re_qp_calculate_msn_psn_size(struct bnxt_re_qp *qp,
bool fixed_que_attr,
struct bnxt_re_qp_req *req)
{
struct bnxt_qplib_qp *qplib_qp = &qp->qplib_qp;
struct bnxt_qplib_q *sq = &qplib_qp->sq;
struct bnxt_re_dev *rdev = qp->rdev;
u8 wqe_mode = qplib_qp->wqe_mode;
if (rdev->dev_attr)
qplib_qp->is_host_msn_tbl =
_is_host_msn_table(rdev->dev_attr->dev_cap_flags2);
if (qplib_qp->type == CMDQ_CREATE_QP_TYPE_RC) {
qplib_qp->psn_sz = bnxt_qplib_is_chip_gen_p5_p7(rdev->chip_ctx) ?
sizeof(struct sq_psn_search_ext) :
sizeof(struct sq_psn_search);
if (qplib_qp->is_host_msn_tbl) {
qplib_qp->psn_sz = sizeof(struct sq_msn_search);
qplib_qp->msn = 0;
}
}
if (qplib_qp->is_host_msn_tbl && qplib_qp->psn_sz) {
if (!fixed_que_attr) {
if (wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC)
qplib_qp->msn_tbl_sz =
roundup_pow_of_two(bnxt_qplib_set_sq_size(sq, wqe_mode));
else
qplib_qp->msn_tbl_sz =
roundup_pow_of_two(bnxt_qplib_set_sq_size(sq, wqe_mode))
/ 2;
} else {
qplib_qp->msn_tbl_sz = req->sq_npsn;
}
qplib_qp->msn = 0;
}
}
static int bnxt_re_init_qp_attr(struct bnxt_re_qp *qp, struct bnxt_re_pd *pd,
struct ib_qp_init_attr *init_attr,
struct bnxt_re_ucontext *uctx,
struct bnxt_re_qp_req *ureq,
struct bnxt_re_dbr_obj *dbr_obj,
bool fixed_que_attr,
struct uverbs_attr_bundle *attrs)
{
struct bnxt_qplib_dev_attr *dev_attr;
struct bnxt_qplib_qp *qplqp;
struct bnxt_re_dev *rdev;
struct bnxt_re_cq *cq;
int rc = 0, qptype;
rdev = qp->rdev;
qplqp = &qp->qplib_qp;
dev_attr = rdev->dev_attr;
ether_addr_copy(qplqp->smac, rdev->netdev->dev_addr);
qplqp->pd = &pd->qplib_pd;
qplqp->qp_handle = (u64)qplqp;
qplqp->max_inline_data = init_attr->cap.max_inline_data;
qplqp->sig_type = init_attr->sq_sig_type == IB_SIGNAL_ALL_WR;
qptype = bnxt_re_init_qp_type(rdev, init_attr);
if (qptype < 0)
return qptype;
qplqp->type = (u8)qptype;
qplqp->wqe_mode = bnxt_re_is_var_size_supported(rdev, uctx);
if (uctx && qplqp->wqe_mode == BNXT_QPLIB_WQE_MODE_VARIABLE &&
(!ureq->sq_slots || ureq->sq_slots > BNXT_RE_MAX_SQ_SLOTS))
return -EINVAL;
if (fixed_que_attr) {
if (qplqp->wqe_mode != BNXT_QPLIB_WQE_MODE_VARIABLE)
return -EOPNOTSUPP;
if (!ureq->sq_npsn ||
ureq->sq_npsn > roundup_pow_of_two(ureq->sq_slots / 2))
return -EINVAL;
}
qplqp->dev_cap_flags = dev_attr->dev_cap_flags;
qplqp->cctx = rdev->chip_ctx;
if (init_attr->qp_type == IB_QPT_RC) {
qplqp->max_rd_atomic = dev_attr->max_qp_rd_atom;
qplqp->max_dest_rd_atomic = dev_attr->max_qp_init_rd_atom;
}
qplqp->mtu = ib_mtu_enum_to_int(iboe_get_mtu(rdev->netdev->mtu));
qplqp->dpi = &rdev->dpi_privileged;
if (init_attr->create_flags) {
ibdev_dbg(&rdev->ibdev,
"QP create flags 0x%x not supported",
init_attr->create_flags);
return -EOPNOTSUPP;
}
if (init_attr->send_cq) {
cq = container_of(init_attr->send_cq, struct bnxt_re_cq, ib_cq);
qplqp->scq = &cq->qplib_cq;
qp->scq = cq;
}
if (init_attr->recv_cq) {
cq = container_of(init_attr->recv_cq, struct bnxt_re_cq, ib_cq);
qplqp->rcq = &cq->qplib_cq;
qp->rcq = cq;
}
rc = bnxt_re_init_rq_attr(qp, init_attr, uctx, fixed_que_attr);
if (rc)
return rc;
if (init_attr->qp_type == IB_QPT_GSI)
bnxt_re_adjust_gsi_rq_attr(qp);
rc = bnxt_re_init_sq_attr(qp, init_attr, uctx, ureq, fixed_que_attr);
if (rc)
return rc;
if (init_attr->qp_type == IB_QPT_GSI)
bnxt_re_adjust_gsi_sq_attr(qp, init_attr, uctx);
if (uctx) {
rc = bnxt_re_init_user_qp(rdev, pd, qp, uctx, ureq, fixed_que_attr,
dbr_obj, attrs);
if (rc)
return rc;
}
bnxt_re_qp_calculate_msn_psn_size(qp, fixed_que_attr, ureq);
rc = bnxt_re_setup_qp_hwqs(qp, fixed_que_attr);
if (rc)
goto free_umem;
return 0;
free_umem:
bnxt_re_qp_free_umem(qp);
return rc;
}
static int bnxt_re_create_shadow_gsi(struct bnxt_re_qp *qp,
struct bnxt_re_pd *pd)
{
struct bnxt_re_sqp_entries *sqp_tbl;
struct bnxt_re_dev *rdev;
struct bnxt_re_qp *sqp;
struct bnxt_re_ah *sah;
int rc = 0;
rdev = qp->rdev;
sqp_tbl = kzalloc_objs(*sqp_tbl, BNXT_RE_MAX_GSI_SQP_ENTRIES);
if (!sqp_tbl)
return -ENOMEM;
rdev->gsi_ctx.sqp_tbl = sqp_tbl;
sqp = bnxt_re_create_shadow_qp(pd, &rdev->qplib_res, &qp->qplib_qp);
if (!sqp) {
rc = -ENODEV;
ibdev_err(&rdev->ibdev, "Failed to create Shadow QP for QP1");
goto out;
}
rdev->gsi_ctx.gsi_sqp = sqp;
sqp->rcq = qp->rcq;
sqp->scq = qp->scq;
sah = bnxt_re_create_shadow_qp_ah(pd, &rdev->qplib_res,
&qp->qplib_qp);
if (!sah) {
bnxt_qplib_destroy_qp(&rdev->qplib_res,
&sqp->qplib_qp);
rc = -ENODEV;
ibdev_err(&rdev->ibdev,
"Failed to create AH entry for ShadowQP");
goto out;
}
rdev->gsi_ctx.gsi_sah = sah;
return 0;
out:
kfree(sqp_tbl);
return rc;
}
static int bnxt_re_create_gsi_qp(struct bnxt_re_qp *qp, struct bnxt_re_pd *pd,
struct ib_qp_init_attr *init_attr)
{
struct bnxt_re_dev *rdev;
struct bnxt_qplib_qp *qplqp;
int rc;
rdev = qp->rdev;
qplqp = &qp->qplib_qp;
qplqp->cctx = rdev->chip_ctx;
qplqp->rq_hdr_buf_size = BNXT_QPLIB_MAX_QP1_RQ_HDR_SIZE_V2;
qplqp->sq_hdr_buf_size = BNXT_QPLIB_MAX_QP1_SQ_HDR_SIZE_V2;
rc = bnxt_qplib_create_qp1(&rdev->qplib_res, qplqp);
if (rc) {
ibdev_err(&rdev->ibdev, "create HW QP1 failed!");
goto out;
}
rc = bnxt_re_create_shadow_gsi(qp, pd);
out:
return rc;
}
static bool bnxt_re_test_qp_limits(struct bnxt_re_dev *rdev,
struct ib_qp_init_attr *init_attr,
struct bnxt_qplib_dev_attr *dev_attr)
{
bool rc = true;
if (init_attr->cap.max_send_wr > dev_attr->max_qp_wqes ||
init_attr->cap.max_recv_wr > dev_attr->max_qp_wqes ||
init_attr->cap.max_send_sge > dev_attr->max_qp_sges ||
init_attr->cap.max_recv_sge > dev_attr->max_qp_sges ||
init_attr->cap.max_inline_data > dev_attr->max_inline_data) {
ibdev_err(&rdev->ibdev,
"Create QP failed - max exceeded! 0x%x/0x%x 0x%x/0x%x 0x%x/0x%x 0x%x/0x%x 0x%x/0x%x",
init_attr->cap.max_send_wr, dev_attr->max_qp_wqes,
init_attr->cap.max_recv_wr, dev_attr->max_qp_wqes,
init_attr->cap.max_send_sge, dev_attr->max_qp_sges,
init_attr->cap.max_recv_sge, dev_attr->max_qp_sges,
init_attr->cap.max_inline_data,
dev_attr->max_inline_data);
rc = false;
}
return rc;
}
static int bnxt_re_add_unique_gid(struct bnxt_re_dev *rdev)
{
struct bnxt_qplib_ctx *hctx = &rdev->qplib_ctx;
struct bnxt_qplib_res *res = &rdev->qplib_res;
int rc;
if (!rdev->rcfw.roce_mirror)
return 0;
rdev->ugid.global.subnet_prefix = cpu_to_be64(0xfe8000000000abcdLL);
addrconf_ifid_eui48(&rdev->ugid.raw[8], rdev->netdev);
rc = bnxt_qplib_add_sgid(&res->sgid_tbl,
(struct bnxt_qplib_gid *)&rdev->ugid,
rdev->qplib_res.netdev->dev_addr,
0xFFFF, true, &rdev->ugid_index, true,
hctx->stats3.fw_id);
if (rc)
dev_err(rdev_to_dev(rdev), "Failed to add unique GID. rc = %d\n", rc);
return rc;
}
int bnxt_re_create_qp(struct ib_qp *ib_qp, struct ib_qp_init_attr *qp_init_attr,
struct ib_udata *udata)
{
struct uverbs_attr_bundle *attrs = NULL;
struct bnxt_re_dbr_obj *dbr_obj = NULL;
struct bnxt_qplib_dev_attr *dev_attr;
struct bnxt_re_ucontext *uctx;
bool fixed_que_attr = false;
struct bnxt_re_qp_req ureq;
struct bnxt_re_dev *rdev;
struct bnxt_re_pd *pd;
struct bnxt_re_qp *qp;
struct ib_pd *ib_pd;
u32 active_qps;
int rc;
ib_pd = ib_qp->pd;
pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
rdev = pd->rdev;
dev_attr = rdev->dev_attr;
qp = container_of(ib_qp, struct bnxt_re_qp, ib_qp);
uctx = rdma_udata_to_drv_context(udata, struct bnxt_re_ucontext, ib_uctx);
if (udata) {
rc = ib_copy_validate_udata_in_cm(udata, ureq, qp_handle,
BNXT_RE_QP_REQ_MASK_FIXED_QUE_ATTR);
if (rc)
return rc;
attrs = rdma_udata_to_uverbs_attr_bundle(udata);
if (uverbs_attr_is_valid(attrs,
BNXT_RE_CREATE_QP_ATTR_DBR_HANDLE)) {
dbr_obj = uverbs_attr_get_obj(attrs,
BNXT_RE_CREATE_QP_ATTR_DBR_HANDLE);
if (IS_ERR(dbr_obj))
return PTR_ERR(dbr_obj);
kref_get(&dbr_obj->usecnt);
qp->dbr_obj = dbr_obj;
}
if (ureq.comp_mask & BNXT_RE_QP_REQ_MASK_FIXED_QUE_ATTR)
fixed_que_attr = true;
}
rc = bnxt_re_test_qp_limits(rdev, qp_init_attr, dev_attr);
if (!rc) {
rc = -EINVAL;
goto fail;
}
qp->rdev = rdev;
rc = bnxt_re_init_qp_attr(qp, pd, qp_init_attr, uctx, &ureq,
dbr_obj, fixed_que_attr, attrs);
if (rc)
goto fail;
if (qp_init_attr->qp_type == IB_QPT_GSI &&
!(bnxt_qplib_is_chip_gen_p5_p7(rdev->chip_ctx))) {
rc = bnxt_re_create_gsi_qp(qp, pd, qp_init_attr);
if (rc == -ENODEV)
goto qp_destroy;
if (rc)
goto free_hwq;
} else {
rc = bnxt_qplib_create_qp(&rdev->qplib_res, &qp->qplib_qp);
if (rc) {
ibdev_err(&rdev->ibdev, "Failed to create HW QP");
goto free_hwq;
}
if (udata) {
struct bnxt_re_qp_resp resp = {};
resp.qpid = qp->qplib_qp.id;
resp.rsvd = 0;
rc = ib_respond_udata(udata, resp);
if (rc)
goto qp_destroy;
}
}
if (qp->qplib_qp.type == CMDQ_CREATE_QP_TYPE_RAW_ETHERTYPE) {
rc = bnxt_re_add_unique_gid(rdev);
if (rc)
goto qp_destroy;
qp->qplib_qp.ugid_index = rdev->ugid_index;
}
qp->ib_qp.qp_num = qp->qplib_qp.id;
if (qp_init_attr->qp_type == IB_QPT_GSI)
rdev->gsi_ctx.gsi_qp = qp;
spin_lock_init(&qp->sq_lock);
spin_lock_init(&qp->rq_lock);
INIT_LIST_HEAD(&qp->list);
mutex_lock(&rdev->qp_lock);
list_add_tail(&qp->list, &rdev->qp_list);
mutex_unlock(&rdev->qp_lock);
active_qps = atomic_inc_return(&rdev->stats.res.qp_count);
if (active_qps > rdev->stats.res.qp_watermark)
rdev->stats.res.qp_watermark = active_qps;
if (qp_init_attr->qp_type == IB_QPT_RC) {
active_qps = atomic_inc_return(&rdev->stats.res.rc_qp_count);
if (active_qps > rdev->stats.res.rc_qp_watermark)
rdev->stats.res.rc_qp_watermark = active_qps;
} else if (qp_init_attr->qp_type == IB_QPT_UD) {
active_qps = atomic_inc_return(&rdev->stats.res.ud_qp_count);
if (active_qps > rdev->stats.res.ud_qp_watermark)
rdev->stats.res.ud_qp_watermark = active_qps;
}
bnxt_re_debug_add_qpinfo(rdev, qp);
return 0;
qp_destroy:
bnxt_qplib_destroy_qp(&rdev->qplib_res, &qp->qplib_qp);
free_hwq:
bnxt_qplib_free_qp_res(&rdev->qplib_res, &qp->qplib_qp);
bnxt_re_qp_free_umem(qp);
fail:
if (dbr_obj)
kref_put(&dbr_obj->usecnt, bnxt_re_dbr_kref_release);
return rc;
}
static u8 __from_ib_qp_state(enum ib_qp_state state)
{
switch (state) {
case IB_QPS_RESET:
return CMDQ_MODIFY_QP_NEW_STATE_RESET;
case IB_QPS_INIT:
return CMDQ_MODIFY_QP_NEW_STATE_INIT;
case IB_QPS_RTR:
return CMDQ_MODIFY_QP_NEW_STATE_RTR;
case IB_QPS_RTS:
return CMDQ_MODIFY_QP_NEW_STATE_RTS;
case IB_QPS_SQD:
return CMDQ_MODIFY_QP_NEW_STATE_SQD;
case IB_QPS_SQE:
return CMDQ_MODIFY_QP_NEW_STATE_SQE;
case IB_QPS_ERR:
default:
return CMDQ_MODIFY_QP_NEW_STATE_ERR;
}
}
static enum ib_qp_state __to_ib_qp_state(u8 state)
{
switch (state) {
case CMDQ_MODIFY_QP_NEW_STATE_RESET:
return IB_QPS_RESET;
case CMDQ_MODIFY_QP_NEW_STATE_INIT:
return IB_QPS_INIT;
case CMDQ_MODIFY_QP_NEW_STATE_RTR:
return IB_QPS_RTR;
case CMDQ_MODIFY_QP_NEW_STATE_RTS:
return IB_QPS_RTS;
case CMDQ_MODIFY_QP_NEW_STATE_SQD:
return IB_QPS_SQD;
case CMDQ_MODIFY_QP_NEW_STATE_SQE:
return IB_QPS_SQE;
case CMDQ_MODIFY_QP_NEW_STATE_ERR:
default:
return IB_QPS_ERR;
}
}
static u32 __from_ib_mtu(enum ib_mtu mtu)
{
switch (mtu) {
case IB_MTU_256:
return CMDQ_MODIFY_QP_PATH_MTU_MTU_256;
case IB_MTU_512:
return CMDQ_MODIFY_QP_PATH_MTU_MTU_512;
case IB_MTU_1024:
return CMDQ_MODIFY_QP_PATH_MTU_MTU_1024;
case IB_MTU_2048:
return CMDQ_MODIFY_QP_PATH_MTU_MTU_2048;
case IB_MTU_4096:
return CMDQ_MODIFY_QP_PATH_MTU_MTU_4096;
default:
return CMDQ_MODIFY_QP_PATH_MTU_MTU_2048;
}
}
static enum ib_mtu __to_ib_mtu(u32 mtu)
{
switch (mtu & CREQ_QUERY_QP_RESP_SB_PATH_MTU_MASK) {
case CMDQ_MODIFY_QP_PATH_MTU_MTU_256:
return IB_MTU_256;
case CMDQ_MODIFY_QP_PATH_MTU_MTU_512:
return IB_MTU_512;
case CMDQ_MODIFY_QP_PATH_MTU_MTU_1024:
return IB_MTU_1024;
case CMDQ_MODIFY_QP_PATH_MTU_MTU_2048:
return IB_MTU_2048;
case CMDQ_MODIFY_QP_PATH_MTU_MTU_4096:
return IB_MTU_4096;
default:
return IB_MTU_2048;
}
}
int bnxt_re_destroy_srq(struct ib_srq *ib_srq, struct ib_udata *udata)
{
struct bnxt_re_srq *srq = container_of(ib_srq, struct bnxt_re_srq,
ib_srq);
struct bnxt_re_dev *rdev = srq->rdev;
struct bnxt_qplib_srq *qplib_srq = &srq->qplib_srq;
int ret;
ret = ib_is_udata_in_empty(udata);
if (ret)
return ret;
if (rdev->chip_ctx->modes.toggle_bits & BNXT_QPLIB_SRQ_TOGGLE_BIT)
hash_del(&srq->hash_entry);
bnxt_qplib_destroy_srq(&rdev->qplib_res, qplib_srq);
if (rdev->chip_ctx->modes.toggle_bits & BNXT_QPLIB_SRQ_TOGGLE_BIT)
free_page((unsigned long)srq->uctx_srq_page);
ib_umem_release(srq->umem);
atomic_dec(&rdev->stats.res.srq_count);
return ib_respond_empty_udata(udata);
}
static int bnxt_re_init_user_srq(struct bnxt_re_dev *rdev,
struct bnxt_re_pd *pd,
struct bnxt_re_srq *srq,
struct ib_udata *udata)
{
struct bnxt_re_srq_req ureq;
struct bnxt_qplib_srq *qplib_srq = &srq->qplib_srq;
struct ib_umem *umem;
int bytes = 0;
struct bnxt_re_ucontext *cntx = rdma_udata_to_drv_context(
udata, struct bnxt_re_ucontext, ib_uctx);
int rc;
rc = ib_copy_validate_udata_in(udata, ureq, srq_handle);
if (rc)
return rc;
bytes = (qplib_srq->max_wqe * qplib_srq->wqe_size);
bytes = PAGE_ALIGN(bytes);
umem = ib_umem_get_va(&rdev->ibdev, ureq.srqva, bytes,
IB_ACCESS_LOCAL_WRITE);
if (IS_ERR(umem))
return PTR_ERR(umem);
srq->umem = umem;
qplib_srq->sg_info.umem = umem;
qplib_srq->sg_info.pgsize = PAGE_SIZE;
qplib_srq->sg_info.pgshft = PAGE_SHIFT;
qplib_srq->srq_handle = ureq.srq_handle;
qplib_srq->dpi = &cntx->dpi;
return 0;
}
int bnxt_re_create_srq(struct ib_srq *ib_srq,
struct ib_srq_init_attr *srq_init_attr,
struct ib_udata *udata)
{
struct bnxt_qplib_dev_attr *dev_attr;
struct bnxt_re_ucontext *uctx;
struct bnxt_re_dev *rdev;
struct bnxt_re_srq *srq;
struct bnxt_re_pd *pd;
struct ib_pd *ib_pd;
u32 active_srqs;
int rc;
ib_pd = ib_srq->pd;
pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
rdev = pd->rdev;
dev_attr = rdev->dev_attr;
srq = container_of(ib_srq, struct bnxt_re_srq, ib_srq);
if (srq_init_attr->attr.max_wr >= dev_attr->max_srq_wqes) {
ibdev_err(&rdev->ibdev, "Create CQ failed - max exceeded");
rc = -EINVAL;
goto exit;
}
if (srq_init_attr->srq_type != IB_SRQT_BASIC) {
rc = -EOPNOTSUPP;
goto exit;
}
uctx = rdma_udata_to_drv_context(udata, struct bnxt_re_ucontext, ib_uctx);
srq->rdev = rdev;
srq->qplib_srq.pd = &pd->qplib_pd;
srq->qplib_srq.dpi = &rdev->dpi_privileged;
srq->qplib_srq.max_wqe =
bnxt_re_init_depth(srq_init_attr->attr.max_wr + 1,
dev_attr->max_srq_wqes + 1, uctx);
srq->qplib_srq.max_sge = srq_init_attr->attr.max_sge;
srq->qplib_srq.wqe_size = bnxt_re_get_rwqe_size(dev_attr->max_srq_sges);
srq->qplib_srq.threshold = srq_init_attr->attr.srq_limit;
srq->srq_limit = srq_init_attr->attr.srq_limit;
srq->qplib_srq.eventq_hw_ring_id = rdev->nqr->nq[0].ring_id;
srq->qplib_srq.sg_info.pgsize = PAGE_SIZE;
srq->qplib_srq.sg_info.pgshft = PAGE_SHIFT;
if (udata) {
rc = bnxt_re_init_user_srq(rdev, pd, srq, udata);
if (rc)
goto fail;
}
rc = bnxt_qplib_create_srq(&rdev->qplib_res, &srq->qplib_srq);
if (rc) {
ibdev_err(&rdev->ibdev, "Create HW SRQ failed!");
goto fail;
}
if (udata) {
struct bnxt_re_srq_resp resp = {};
resp.srqid = srq->qplib_srq.id;
if (rdev->chip_ctx->modes.toggle_bits & BNXT_QPLIB_SRQ_TOGGLE_BIT) {
hash_add(rdev->srq_hash, &srq->hash_entry, srq->qplib_srq.id);
srq->uctx_srq_page = (void *)get_zeroed_page(GFP_KERNEL);
if (!srq->uctx_srq_page) {
rc = -ENOMEM;
goto fail;
}
resp.comp_mask |= BNXT_RE_SRQ_TOGGLE_PAGE_SUPPORT;
}
rc = ib_respond_udata(udata, resp);
if (rc) {
bnxt_qplib_destroy_srq(&rdev->qplib_res,
&srq->qplib_srq);
goto fail;
}
}
active_srqs = atomic_inc_return(&rdev->stats.res.srq_count);
if (active_srqs > rdev->stats.res.srq_watermark)
rdev->stats.res.srq_watermark = active_srqs;
spin_lock_init(&srq->lock);
return 0;
fail:
ib_umem_release(srq->umem);
exit:
return rc;
}
int bnxt_re_modify_srq(struct ib_srq *ib_srq, struct ib_srq_attr *srq_attr,
enum ib_srq_attr_mask srq_attr_mask,
struct ib_udata *udata)
{
struct bnxt_re_srq *srq = container_of(ib_srq, struct bnxt_re_srq,
ib_srq);
struct bnxt_re_dev *rdev = srq->rdev;
int ret;
ret = ib_is_udata_in_empty(udata);
if (ret)
return ret;
switch (srq_attr_mask) {
case IB_SRQ_MAX_WR:
return -EINVAL;
case IB_SRQ_LIMIT:
if (srq_attr->srq_limit > srq->qplib_srq.max_wqe)
return -EINVAL;
srq->qplib_srq.threshold = srq_attr->srq_limit;
bnxt_qplib_srq_arm_db(&srq->qplib_srq.dbinfo, srq->qplib_srq.threshold);
srq->srq_limit = srq_attr->srq_limit;
return ib_respond_empty_udata(udata);
default:
ibdev_err(&rdev->ibdev,
"Unsupported srq_attr_mask 0x%x", srq_attr_mask);
return -EINVAL;
}
}
int bnxt_re_query_srq(struct ib_srq *ib_srq, struct ib_srq_attr *srq_attr)
{
struct bnxt_re_srq *srq = container_of(ib_srq, struct bnxt_re_srq,
ib_srq);
struct bnxt_re_srq tsrq;
struct bnxt_re_dev *rdev = srq->rdev;
int rc;
tsrq.qplib_srq.id = srq->qplib_srq.id;
rc = bnxt_qplib_query_srq(&rdev->qplib_res, &tsrq.qplib_srq);
if (rc) {
ibdev_err(&rdev->ibdev, "Query HW SRQ failed!");
return rc;
}
srq_attr->max_wr = srq->qplib_srq.max_wqe;
srq_attr->max_sge = srq->qplib_srq.max_sge;
srq_attr->srq_limit = tsrq.qplib_srq.threshold;
return 0;
}
int bnxt_re_post_srq_recv(struct ib_srq *ib_srq, const struct ib_recv_wr *wr,
const struct ib_recv_wr **bad_wr)
{
struct bnxt_re_srq *srq = container_of(ib_srq, struct bnxt_re_srq,
ib_srq);
struct bnxt_qplib_swqe wqe;
unsigned long flags;
int rc = 0;
spin_lock_irqsave(&srq->lock, flags);
while (wr) {
wqe.num_sge = wr->num_sge;
bnxt_re_build_sgl(wr->sg_list, wqe.sg_list, wr->num_sge);
wqe.wr_id = wr->wr_id;
wqe.type = BNXT_QPLIB_SWQE_TYPE_RECV;
rc = bnxt_qplib_post_srq_recv(&srq->qplib_srq, &wqe);
if (rc) {
*bad_wr = wr;
break;
}
wr = wr->next;
}
spin_unlock_irqrestore(&srq->lock, flags);
return rc;
}
static int bnxt_re_modify_shadow_qp(struct bnxt_re_dev *rdev,
struct bnxt_re_qp *qp1_qp,
int qp_attr_mask)
{
struct bnxt_re_qp *qp = rdev->gsi_ctx.gsi_sqp;
int rc;
if (qp_attr_mask & IB_QP_STATE) {
qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_STATE;
qp->qplib_qp.state = qp1_qp->qplib_qp.state;
}
if (qp_attr_mask & IB_QP_PKEY_INDEX) {
qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_PKEY;
qp->qplib_qp.pkey_index = qp1_qp->qplib_qp.pkey_index;
}
if (qp_attr_mask & IB_QP_QKEY) {
qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_QKEY;
qp->qplib_qp.qkey = 0x81818181;
}
if (qp_attr_mask & IB_QP_SQ_PSN) {
qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_SQ_PSN;
qp->qplib_qp.sq.psn = qp1_qp->qplib_qp.sq.psn;
}
rc = bnxt_qplib_modify_qp(&rdev->qplib_res, &qp->qplib_qp);
if (rc)
ibdev_err(&rdev->ibdev, "Failed to modify Shadow QP for QP1");
return rc;
}
static bool bnxt_re_is_modify_ok(enum ib_qp_attr_mask ext_mask,
enum ib_qp_type type, enum ib_qp_state cur,
enum ib_qp_state next)
{
if (!ext_mask)
return true;
if (ext_mask & ~IB_QP_RATE_LIMIT)
return false;
return type == IB_QPT_RC &&
((cur == IB_QPS_INIT && next == IB_QPS_RTR) ||
(cur == IB_QPS_RTR && next == IB_QPS_RTS) ||
(cur == IB_QPS_RTS && next == IB_QPS_RTS));
}
int bnxt_re_modify_qp(struct ib_qp *ib_qp, struct ib_qp_attr *qp_attr,
int qp_attr_mask, struct ib_udata *udata)
{
struct bnxt_re_qp *qp = container_of(ib_qp, struct bnxt_re_qp, ib_qp);
struct bnxt_re_dev *rdev = qp->rdev;
struct bnxt_qplib_dev_attr *dev_attr = rdev->dev_attr;
enum ib_qp_state curr_qp_state, new_qp_state;
int rc;
unsigned int flags;
u8 nw_type;
rc = ib_is_udata_in_empty(udata);
if (rc)
return rc;
if (qp_attr_mask & ~(IB_QP_ATTR_STANDARD_BITS | IB_QP_RATE_LIMIT))
return -EOPNOTSUPP;
qp->qplib_qp.modify_flags = 0;
qp->qplib_qp.ext_modify_flags = 0;
if (qp_attr_mask & IB_QP_STATE) {
curr_qp_state = __to_ib_qp_state(qp->qplib_qp.cur_qp_state);
new_qp_state = qp_attr->qp_state;
if (!ib_modify_qp_is_ok(curr_qp_state, new_qp_state,
ib_qp->qp_type, qp_attr_mask) ||
!bnxt_re_is_modify_ok(qp_attr_mask & ~IB_QP_ATTR_STANDARD_BITS,
ib_qp->qp_type, curr_qp_state,
new_qp_state)) {
ibdev_err(&rdev->ibdev,
"Invalid attribute mask: %#x specified ",
qp_attr_mask);
ibdev_err(&rdev->ibdev,
"for qpn: %#x type: %#x",
ib_qp->qp_num, ib_qp->qp_type);
ibdev_err(&rdev->ibdev,
"curr_qp_state=0x%x, new_qp_state=0x%x\n",
curr_qp_state, new_qp_state);
return -EINVAL;
}
qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_STATE;
qp->qplib_qp.state = __from_ib_qp_state(qp_attr->qp_state);
if (!qp->sumem &&
qp->qplib_qp.state == CMDQ_MODIFY_QP_NEW_STATE_ERR) {
ibdev_dbg(&rdev->ibdev,
"Move QP = %p to flush list\n", qp);
flags = bnxt_re_lock_cqs(qp);
bnxt_qplib_add_flush_qp(&qp->qplib_qp);
bnxt_re_unlock_cqs(qp, flags);
}
if (!qp->sumem &&
qp->qplib_qp.state == CMDQ_MODIFY_QP_NEW_STATE_RESET) {
ibdev_dbg(&rdev->ibdev,
"Move QP = %p out of flush list\n", qp);
flags = bnxt_re_lock_cqs(qp);
bnxt_qplib_clean_qp(&qp->qplib_qp);
bnxt_re_unlock_cqs(qp, flags);
}
}
if (qp_attr_mask & IB_QP_RATE_LIMIT) {
if (qp->qplib_qp.type != IB_QPT_RC ||
!_is_modify_qp_rate_limit_supported(dev_attr->dev_cap_flags2))
return -EOPNOTSUPP;
qp->qplib_qp.ext_modify_flags |=
CMDQ_MODIFY_QP_EXT_MODIFY_MASK_RATE_LIMIT_VALID;
qp->qplib_qp.rate_limit = qp_attr->rate_limit;
}
if (qp_attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY) {
qp->qplib_qp.modify_flags |=
CMDQ_MODIFY_QP_MODIFY_MASK_EN_SQD_ASYNC_NOTIFY;
qp->qplib_qp.en_sqd_async_notify = true;
}
if (qp_attr_mask & IB_QP_ACCESS_FLAGS) {
qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_ACCESS;
qp->qplib_qp.access =
__qp_access_flags_from_ib(qp->qplib_qp.cctx,
qp_attr->qp_access_flags);
qp->qplib_qp.access |= CMDQ_MODIFY_QP_ACCESS_LOCAL_WRITE;
}
if (qp_attr_mask & IB_QP_PKEY_INDEX) {
qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_PKEY;
qp->qplib_qp.pkey_index = qp_attr->pkey_index;
}
if (qp_attr_mask & IB_QP_QKEY) {
qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_QKEY;
qp->qplib_qp.qkey = qp_attr->qkey;
}
if (qp_attr_mask & IB_QP_AV) {
const struct ib_global_route *grh =
rdma_ah_read_grh(&qp_attr->ah_attr);
const struct ib_gid_attr *sgid_attr;
struct bnxt_re_gid_ctx *ctx;
qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_DGID |
CMDQ_MODIFY_QP_MODIFY_MASK_FLOW_LABEL |
CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX |
CMDQ_MODIFY_QP_MODIFY_MASK_HOP_LIMIT |
CMDQ_MODIFY_QP_MODIFY_MASK_TRAFFIC_CLASS |
CMDQ_MODIFY_QP_MODIFY_MASK_DEST_MAC |
CMDQ_MODIFY_QP_MODIFY_MASK_VLAN_ID;
memcpy(qp->qplib_qp.ah.dgid.data, grh->dgid.raw,
sizeof(qp->qplib_qp.ah.dgid.data));
qp->qplib_qp.ah.flow_label = grh->flow_label;
sgid_attr = grh->sgid_attr;
ctx = rdma_read_gid_hw_context(sgid_attr);
qp->qplib_qp.ah.sgid_index = ctx->idx;
qp->qplib_qp.ah.host_sgid_index = grh->sgid_index;
qp->qplib_qp.ah.hop_limit = grh->hop_limit;
qp->qplib_qp.ah.traffic_class = grh->traffic_class >> 2;
qp->qplib_qp.ah.sl = rdma_ah_get_sl(&qp_attr->ah_attr);
ether_addr_copy(qp->qplib_qp.ah.dmac,
qp_attr->ah_attr.roce.dmac);
rc = rdma_read_gid_l2_fields(sgid_attr, NULL,
&qp->qplib_qp.smac[0]);
if (rc)
return rc;
nw_type = rdma_gid_attr_network_type(sgid_attr);
switch (nw_type) {
case RDMA_NETWORK_IPV4:
qp->qplib_qp.nw_type =
CMDQ_MODIFY_QP_NETWORK_TYPE_ROCEV2_IPV4;
break;
case RDMA_NETWORK_IPV6:
qp->qplib_qp.nw_type =
CMDQ_MODIFY_QP_NETWORK_TYPE_ROCEV2_IPV6;
break;
default:
qp->qplib_qp.nw_type =
CMDQ_MODIFY_QP_NETWORK_TYPE_ROCEV1;
break;
}
}
if (qp_attr->qp_state == IB_QPS_RTR) {
enum ib_mtu qpmtu;
qpmtu = iboe_get_mtu(rdev->netdev->mtu);
if (qp_attr_mask & IB_QP_PATH_MTU) {
if (ib_mtu_enum_to_int(qp_attr->path_mtu) >
ib_mtu_enum_to_int(qpmtu))
return -EINVAL;
qpmtu = qp_attr->path_mtu;
}
qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU;
qp->qplib_qp.path_mtu = __from_ib_mtu(qpmtu);
qp->qplib_qp.mtu = ib_mtu_enum_to_int(qpmtu);
}
if (qp_attr_mask & IB_QP_TIMEOUT) {
qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_TIMEOUT;
qp->qplib_qp.timeout = qp_attr->timeout;
}
if (qp_attr_mask & IB_QP_RETRY_CNT) {
qp->qplib_qp.modify_flags |=
CMDQ_MODIFY_QP_MODIFY_MASK_RETRY_CNT;
qp->qplib_qp.retry_cnt = qp_attr->retry_cnt;
}
if (qp_attr_mask & IB_QP_RNR_RETRY) {
qp->qplib_qp.modify_flags |=
CMDQ_MODIFY_QP_MODIFY_MASK_RNR_RETRY;
qp->qplib_qp.rnr_retry = qp_attr->rnr_retry;
}
if (qp_attr_mask & IB_QP_MIN_RNR_TIMER) {
qp->qplib_qp.modify_flags |=
CMDQ_MODIFY_QP_MODIFY_MASK_MIN_RNR_TIMER;
qp->qplib_qp.min_rnr_timer = qp_attr->min_rnr_timer;
}
if (qp_attr_mask & IB_QP_RQ_PSN) {
qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_RQ_PSN;
qp->qplib_qp.rq.psn = qp_attr->rq_psn;
}
if (qp_attr_mask & IB_QP_MAX_QP_RD_ATOMIC) {
qp->qplib_qp.modify_flags |=
CMDQ_MODIFY_QP_MODIFY_MASK_MAX_RD_ATOMIC;
qp->qplib_qp.max_rd_atomic = min_t(u32, qp_attr->max_rd_atomic,
dev_attr->max_qp_rd_atom);
}
if (qp_attr_mask & IB_QP_SQ_PSN) {
qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_SQ_PSN;
qp->qplib_qp.sq.psn = qp_attr->sq_psn;
}
if (qp_attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) {
if (qp_attr->max_dest_rd_atomic >
dev_attr->max_qp_init_rd_atom) {
ibdev_err(&rdev->ibdev,
"max_dest_rd_atomic requested%d is > dev_max%d",
qp_attr->max_dest_rd_atomic,
dev_attr->max_qp_init_rd_atom);
return -EINVAL;
}
qp->qplib_qp.modify_flags |=
CMDQ_MODIFY_QP_MODIFY_MASK_MAX_DEST_RD_ATOMIC;
qp->qplib_qp.max_dest_rd_atomic = qp_attr->max_dest_rd_atomic;
}
if (qp_attr_mask & IB_QP_CAP) {
struct bnxt_re_ucontext *uctx =
rdma_udata_to_drv_context(udata, struct bnxt_re_ucontext, ib_uctx);
qp->qplib_qp.modify_flags |=
CMDQ_MODIFY_QP_MODIFY_MASK_SQ_SIZE |
CMDQ_MODIFY_QP_MODIFY_MASK_RQ_SIZE |
CMDQ_MODIFY_QP_MODIFY_MASK_SQ_SGE |
CMDQ_MODIFY_QP_MODIFY_MASK_RQ_SGE |
CMDQ_MODIFY_QP_MODIFY_MASK_MAX_INLINE_DATA;
if ((qp_attr->cap.max_send_wr >= dev_attr->max_qp_wqes) ||
(qp_attr->cap.max_recv_wr >= dev_attr->max_qp_wqes) ||
(qp_attr->cap.max_send_sge >= dev_attr->max_qp_sges) ||
(qp_attr->cap.max_recv_sge >= dev_attr->max_qp_sges) ||
(qp_attr->cap.max_inline_data >=
dev_attr->max_inline_data)) {
ibdev_err(&rdev->ibdev,
"Create QP failed - max exceeded");
return -EINVAL;
}
qp->qplib_qp.sq.max_wqe =
bnxt_re_init_depth(qp_attr->cap.max_send_wr,
dev_attr->max_qp_wqes + 1, uctx);
qp->qplib_qp.sq.q_full_delta = qp->qplib_qp.sq.max_wqe -
qp_attr->cap.max_send_wr;
qp->qplib_qp.sq.q_full_delta -= 1;
qp->qplib_qp.sq.max_sge = qp_attr->cap.max_send_sge;
if (qp->qplib_qp.rq.max_wqe) {
qp->qplib_qp.rq.max_wqe = bnxt_re_init_depth(
qp_attr->cap.max_recv_wr,
dev_attr->max_qp_wqes + 1, uctx);
qp->qplib_qp.rq.max_sw_wqe = qp->qplib_qp.rq.max_wqe;
qp->qplib_qp.rq.q_full_delta = qp->qplib_qp.rq.max_wqe -
qp_attr->cap.max_recv_wr;
qp->qplib_qp.rq.max_sge = qp_attr->cap.max_recv_sge;
} else {
}
}
if (qp_attr_mask & IB_QP_DEST_QPN) {
qp->qplib_qp.modify_flags |=
CMDQ_MODIFY_QP_MODIFY_MASK_DEST_QP_ID;
qp->qplib_qp.dest_qpn = qp_attr->dest_qp_num;
}
rc = bnxt_qplib_modify_qp(&rdev->qplib_res, &qp->qplib_qp);
if (rc) {
ibdev_err(&rdev->ibdev, "Failed to modify HW QP");
return rc;
}
if (ib_qp->qp_type == IB_QPT_GSI && rdev->gsi_ctx.gsi_sqp) {
rc = bnxt_re_modify_shadow_qp(rdev, qp, qp_attr_mask);
if (rc)
return rc;
}
return ib_respond_empty_udata(udata);
}
int bnxt_re_query_qp(struct ib_qp *ib_qp, struct ib_qp_attr *qp_attr,
int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr)
{
struct bnxt_re_qp *qp = container_of(ib_qp, struct bnxt_re_qp, ib_qp);
struct bnxt_re_dev *rdev = qp->rdev;
struct bnxt_qplib_qp *qplib_qp;
int rc;
qplib_qp = kzalloc_obj(*qplib_qp);
if (!qplib_qp)
return -ENOMEM;
qplib_qp->id = qp->qplib_qp.id;
qplib_qp->ah.host_sgid_index = qp->qplib_qp.ah.host_sgid_index;
rc = bnxt_qplib_query_qp(&rdev->qplib_res, qplib_qp);
if (rc) {
ibdev_err(&rdev->ibdev, "Failed to query HW QP");
goto out;
}
qp_attr->qp_state = __to_ib_qp_state(qplib_qp->state);
qp_attr->cur_qp_state = __to_ib_qp_state(qplib_qp->cur_qp_state);
qp_attr->en_sqd_async_notify = qplib_qp->en_sqd_async_notify ? 1 : 0;
qp_attr->qp_access_flags = __qp_access_flags_to_ib(qp->qplib_qp.cctx,
qplib_qp->access);
qp_attr->pkey_index = qplib_qp->pkey_index;
qp_attr->qkey = qplib_qp->qkey;
qp_attr->ah_attr.type = RDMA_AH_ATTR_TYPE_ROCE;
rdma_ah_set_grh(&qp_attr->ah_attr, NULL, qplib_qp->udp_sport,
qplib_qp->ah.host_sgid_index,
qplib_qp->ah.hop_limit,
qplib_qp->ah.traffic_class);
rdma_ah_set_dgid_raw(&qp_attr->ah_attr, qplib_qp->ah.dgid.data);
rdma_ah_set_sl(&qp_attr->ah_attr, qplib_qp->ah.sl);
ether_addr_copy(qp_attr->ah_attr.roce.dmac, qplib_qp->ah.dmac);
qp_attr->path_mtu = __to_ib_mtu(qplib_qp->path_mtu);
qp_attr->timeout = qplib_qp->timeout;
qp_attr->retry_cnt = qplib_qp->retry_cnt;
qp_attr->rnr_retry = qplib_qp->rnr_retry;
qp_attr->min_rnr_timer = qplib_qp->min_rnr_timer;
qp_attr->port_num = __to_ib_port_num(qplib_qp->port_id);
qp_attr->rq_psn = qplib_qp->rq.psn;
qp_attr->max_rd_atomic = qplib_qp->max_rd_atomic;
qp_attr->sq_psn = qplib_qp->sq.psn;
qp_attr->max_dest_rd_atomic = qplib_qp->max_dest_rd_atomic;
qp_init_attr->sq_sig_type = qplib_qp->sig_type ? IB_SIGNAL_ALL_WR :
IB_SIGNAL_REQ_WR;
qp_attr->dest_qp_num = qplib_qp->dest_qpn;
qp_attr->cap.max_send_wr = qp->qplib_qp.sq.max_wqe;
qp_attr->cap.max_send_sge = qp->qplib_qp.sq.max_sge;
qp_attr->cap.max_recv_wr = qp->qplib_qp.rq.max_wqe;
qp_attr->cap.max_recv_sge = qp->qplib_qp.rq.max_sge;
qp_attr->cap.max_inline_data = qp->qplib_qp.max_inline_data;
qp_init_attr->cap = qp_attr->cap;
out:
kfree(qplib_qp);
return rc;
}
static int bnxt_re_build_qp1_send_v2(struct bnxt_re_qp *qp,
const struct ib_send_wr *wr,
struct bnxt_qplib_swqe *wqe,
int payload_size)
{
struct bnxt_re_ah *ah = container_of(ud_wr(wr)->ah, struct bnxt_re_ah,
ib_ah);
struct bnxt_qplib_ah *qplib_ah = &ah->qplib_ah;
const struct ib_gid_attr *sgid_attr = ah->ib_ah.sgid_attr;
struct bnxt_qplib_sge sge;
u8 nw_type;
u16 ether_type;
union ib_gid dgid;
bool is_eth = false;
bool is_vlan = false;
bool is_grh = false;
bool is_udp = false;
u8 ip_version = 0;
u16 vlan_id = 0xFFFF;
void *buf;
int i, rc;
memset(&qp->qp1_hdr, 0, sizeof(qp->qp1_hdr));
rc = rdma_read_gid_l2_fields(sgid_attr, &vlan_id, NULL);
if (rc)
return rc;
nw_type = rdma_gid_attr_network_type(sgid_attr);
switch (nw_type) {
case RDMA_NETWORK_IPV4:
nw_type = BNXT_RE_ROCEV2_IPV4_PACKET;
break;
case RDMA_NETWORK_IPV6:
nw_type = BNXT_RE_ROCEV2_IPV6_PACKET;
break;
default:
nw_type = BNXT_RE_ROCE_V1_PACKET;
break;
}
memcpy(&dgid.raw, &qplib_ah->dgid, 16);
is_udp = sgid_attr->gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP;
if (is_udp) {
if (ipv6_addr_v4mapped((struct in6_addr *)&sgid_attr->gid)) {
ip_version = 4;
ether_type = ETH_P_IP;
} else {
ip_version = 6;
ether_type = ETH_P_IPV6;
}
is_grh = false;
} else {
ether_type = ETH_P_IBOE;
is_grh = true;
}
is_eth = true;
is_vlan = vlan_id && (vlan_id < 0x1000);
ib_ud_header_init(payload_size, !is_eth, is_eth, is_vlan, is_grh,
ip_version, is_udp, 0, &qp->qp1_hdr);
ether_addr_copy(qp->qp1_hdr.eth.dmac_h, ah->qplib_ah.dmac);
ether_addr_copy(qp->qp1_hdr.eth.smac_h, qp->qplib_qp.smac);
if (!is_vlan) {
qp->qp1_hdr.eth.type = cpu_to_be16(ether_type);
} else {
qp->qp1_hdr.vlan.type = cpu_to_be16(ether_type);
qp->qp1_hdr.vlan.tag = cpu_to_be16(vlan_id);
}
if (is_grh || (ip_version == 6)) {
memcpy(qp->qp1_hdr.grh.source_gid.raw, sgid_attr->gid.raw,
sizeof(sgid_attr->gid));
memcpy(qp->qp1_hdr.grh.destination_gid.raw, qplib_ah->dgid.data,
sizeof(sgid_attr->gid));
qp->qp1_hdr.grh.hop_limit = qplib_ah->hop_limit;
}
if (ip_version == 4) {
qp->qp1_hdr.ip4.tos = 0;
qp->qp1_hdr.ip4.id = 0;
qp->qp1_hdr.ip4.frag_off = htons(IP_DF);
qp->qp1_hdr.ip4.ttl = qplib_ah->hop_limit;
memcpy(&qp->qp1_hdr.ip4.saddr, sgid_attr->gid.raw + 12, 4);
memcpy(&qp->qp1_hdr.ip4.daddr, qplib_ah->dgid.data + 12, 4);
qp->qp1_hdr.ip4.check = ib_ud_ip4_csum(&qp->qp1_hdr);
}
if (is_udp) {
qp->qp1_hdr.udp.dport = htons(ROCE_V2_UDP_DPORT);
qp->qp1_hdr.udp.sport = htons(0x8CD1);
qp->qp1_hdr.udp.csum = 0;
}
if (wr->opcode == IB_WR_SEND_WITH_IMM) {
qp->qp1_hdr.bth.opcode = IB_OPCODE_UD_SEND_ONLY_WITH_IMMEDIATE;
qp->qp1_hdr.immediate_present = 1;
} else {
qp->qp1_hdr.bth.opcode = IB_OPCODE_UD_SEND_ONLY;
}
if (wr->send_flags & IB_SEND_SOLICITED)
qp->qp1_hdr.bth.solicited_event = 1;
qp->qp1_hdr.bth.pad_count = (4 - payload_size) & 3;
qp->qp1_hdr.bth.pkey = cpu_to_be16(0xFFFF);
qp->qp1_hdr.bth.destination_qpn = IB_QP1;
qp->qp1_hdr.bth.ack_req = 0;
qp->send_psn++;
qp->send_psn &= BTH_PSN_MASK;
qp->qp1_hdr.bth.psn = cpu_to_be32(qp->send_psn);
qp->qp1_hdr.deth.qkey = cpu_to_be32(IB_QP1_QKEY);
qp->qp1_hdr.deth.source_qpn = IB_QP1;
buf = bnxt_qplib_get_qp1_sq_buf(&qp->qplib_qp, &sge);
if (buf) {
ib_ud_header_pack(&qp->qp1_hdr, buf);
for (i = wqe->num_sge; i; i--) {
wqe->sg_list[i].addr = wqe->sg_list[i - 1].addr;
wqe->sg_list[i].lkey = wqe->sg_list[i - 1].lkey;
wqe->sg_list[i].size = wqe->sg_list[i - 1].size;
}
if (is_udp && ip_version == 4)
sge.size -= 20;
if (!is_udp)
sge.size -= 8;
if (!is_vlan)
sge.size -= 4;
wqe->sg_list[0].addr = sge.addr;
wqe->sg_list[0].lkey = sge.lkey;
wqe->sg_list[0].size = sge.size;
wqe->num_sge++;
} else {
ibdev_err(&qp->rdev->ibdev, "QP1 buffer is empty!");
rc = -ENOMEM;
}
return rc;
}
static int bnxt_re_build_qp1_shadow_qp_recv(struct bnxt_re_qp *qp,
const struct ib_recv_wr *wr,
struct bnxt_qplib_swqe *wqe,
int payload_size)
{
struct bnxt_re_sqp_entries *sqp_entry;
struct bnxt_qplib_sge ref, sge;
struct bnxt_re_dev *rdev;
u32 rq_prod_index;
rdev = qp->rdev;
rq_prod_index = bnxt_qplib_get_rq_prod_index(&qp->qplib_qp);
if (!bnxt_qplib_get_qp1_rq_buf(&qp->qplib_qp, &sge))
return -ENOMEM;
ref.addr = wqe->sg_list[0].addr;
ref.lkey = wqe->sg_list[0].lkey;
ref.size = wqe->sg_list[0].size;
sqp_entry = &rdev->gsi_ctx.sqp_tbl[rq_prod_index];
wqe->sg_list[0].addr = sge.addr;
wqe->sg_list[0].lkey = sge.lkey;
wqe->sg_list[0].size = BNXT_QPLIB_MAX_QP1_RQ_HDR_SIZE_V2;
sge.size -= wqe->sg_list[0].size;
sqp_entry->sge.addr = ref.addr;
sqp_entry->sge.lkey = ref.lkey;
sqp_entry->sge.size = ref.size;
sqp_entry->wrid = wqe->wr_id;
wqe->wr_id = rq_prod_index;
return 0;
}
static int is_ud_qp(struct bnxt_re_qp *qp)
{
return (qp->qplib_qp.type == CMDQ_CREATE_QP_TYPE_UD ||
qp->qplib_qp.type == CMDQ_CREATE_QP_TYPE_GSI);
}
static int bnxt_re_build_send_wqe(struct bnxt_re_qp *qp,
const struct ib_send_wr *wr,
struct bnxt_qplib_swqe *wqe)
{
struct bnxt_re_ah *ah = NULL;
if (is_ud_qp(qp)) {
ah = container_of(ud_wr(wr)->ah, struct bnxt_re_ah, ib_ah);
wqe->send.q_key = ud_wr(wr)->remote_qkey;
wqe->send.dst_qp = ud_wr(wr)->remote_qpn;
wqe->send.avid = ah->qplib_ah.id;
}
switch (wr->opcode) {
case IB_WR_SEND:
wqe->type = BNXT_QPLIB_SWQE_TYPE_SEND;
break;
case IB_WR_SEND_WITH_IMM:
wqe->type = BNXT_QPLIB_SWQE_TYPE_SEND_WITH_IMM;
wqe->send.imm_data = be32_to_cpu(wr->ex.imm_data);
break;
case IB_WR_SEND_WITH_INV:
wqe->type = BNXT_QPLIB_SWQE_TYPE_SEND_WITH_INV;
wqe->send.inv_key = wr->ex.invalidate_rkey;
break;
default:
return -EINVAL;
}
if (wr->send_flags & IB_SEND_SIGNALED)
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP;
if (wr->send_flags & IB_SEND_FENCE)
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE;
if (wr->send_flags & IB_SEND_SOLICITED)
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SOLICIT_EVENT;
if (wr->send_flags & IB_SEND_INLINE)
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_INLINE;
return 0;
}
static int bnxt_re_build_rdma_wqe(const struct ib_send_wr *wr,
struct bnxt_qplib_swqe *wqe)
{
switch (wr->opcode) {
case IB_WR_RDMA_WRITE:
wqe->type = BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE;
break;
case IB_WR_RDMA_WRITE_WITH_IMM:
wqe->type = BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE_WITH_IMM;
wqe->rdma.imm_data = be32_to_cpu(wr->ex.imm_data);
break;
case IB_WR_RDMA_READ:
wqe->type = BNXT_QPLIB_SWQE_TYPE_RDMA_READ;
wqe->rdma.inv_key = wr->ex.invalidate_rkey;
break;
default:
return -EINVAL;
}
wqe->rdma.remote_va = rdma_wr(wr)->remote_addr;
wqe->rdma.r_key = rdma_wr(wr)->rkey;
if (wr->send_flags & IB_SEND_SIGNALED)
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP;
if (wr->send_flags & IB_SEND_FENCE)
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE;
if (wr->send_flags & IB_SEND_SOLICITED)
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SOLICIT_EVENT;
if (wr->send_flags & IB_SEND_INLINE)
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_INLINE;
return 0;
}
static int bnxt_re_build_atomic_wqe(const struct ib_send_wr *wr,
struct bnxt_qplib_swqe *wqe)
{
switch (wr->opcode) {
case IB_WR_ATOMIC_CMP_AND_SWP:
wqe->type = BNXT_QPLIB_SWQE_TYPE_ATOMIC_CMP_AND_SWP;
wqe->atomic.cmp_data = atomic_wr(wr)->compare_add;
wqe->atomic.swap_data = atomic_wr(wr)->swap;
break;
case IB_WR_ATOMIC_FETCH_AND_ADD:
wqe->type = BNXT_QPLIB_SWQE_TYPE_ATOMIC_FETCH_AND_ADD;
wqe->atomic.cmp_data = atomic_wr(wr)->compare_add;
break;
default:
return -EINVAL;
}
wqe->atomic.remote_va = atomic_wr(wr)->remote_addr;
wqe->atomic.r_key = atomic_wr(wr)->rkey;
if (wr->send_flags & IB_SEND_SIGNALED)
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP;
if (wr->send_flags & IB_SEND_FENCE)
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE;
if (wr->send_flags & IB_SEND_SOLICITED)
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SOLICIT_EVENT;
return 0;
}
static int bnxt_re_build_inv_wqe(const struct ib_send_wr *wr,
struct bnxt_qplib_swqe *wqe)
{
wqe->type = BNXT_QPLIB_SWQE_TYPE_LOCAL_INV;
wqe->local_inv.inv_l_key = wr->ex.invalidate_rkey;
if (wr->send_flags & IB_SEND_SIGNALED)
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP;
if (wr->send_flags & IB_SEND_SOLICITED)
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SOLICIT_EVENT;
return 0;
}
static int bnxt_re_build_reg_wqe(const struct ib_reg_wr *wr,
struct bnxt_qplib_swqe *wqe)
{
struct bnxt_re_mr *mr = container_of(wr->mr, struct bnxt_re_mr, ib_mr);
struct bnxt_qplib_frpl *qplib_frpl = &mr->qplib_frpl;
int access = wr->access;
wqe->frmr.pbl_ptr = (__le64 *)qplib_frpl->hwq.pbl_ptr[0];
wqe->frmr.pbl_dma_ptr = qplib_frpl->hwq.pbl_dma_ptr[0];
wqe->frmr.page_list = mr->pages;
wqe->frmr.page_list_len = mr->npages;
wqe->frmr.levels = qplib_frpl->hwq.level;
wqe->type = BNXT_QPLIB_SWQE_TYPE_REG_MR;
if (wr->wr.send_flags & IB_SEND_SIGNALED)
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP;
if (access & IB_ACCESS_LOCAL_WRITE)
wqe->frmr.access_cntl |= SQ_FR_PMR_ACCESS_CNTL_LOCAL_WRITE;
if (access & IB_ACCESS_REMOTE_READ)
wqe->frmr.access_cntl |= SQ_FR_PMR_ACCESS_CNTL_REMOTE_READ;
if (access & IB_ACCESS_REMOTE_WRITE)
wqe->frmr.access_cntl |= SQ_FR_PMR_ACCESS_CNTL_REMOTE_WRITE;
if (access & IB_ACCESS_REMOTE_ATOMIC)
wqe->frmr.access_cntl |= SQ_FR_PMR_ACCESS_CNTL_REMOTE_ATOMIC;
if (access & IB_ACCESS_MW_BIND)
wqe->frmr.access_cntl |= SQ_FR_PMR_ACCESS_CNTL_WINDOW_BIND;
wqe->frmr.l_key = wr->key;
wqe->frmr.length = wr->mr->length;
wqe->frmr.pbl_pg_sz_log = ilog2(PAGE_SIZE >> PAGE_SHIFT_4K);
wqe->frmr.pg_sz_log = ilog2(wr->mr->page_size >> PAGE_SHIFT_4K);
wqe->frmr.va = wr->mr->iova;
return 0;
}
static int bnxt_re_copy_inline_data(struct bnxt_re_dev *rdev,
const struct ib_send_wr *wr,
struct bnxt_qplib_swqe *wqe)
{
u8 *in_data;
u32 i, sge_len;
void *sge_addr;
in_data = wqe->inline_data;
for (i = 0; i < wr->num_sge; i++) {
sge_addr = (void *)(unsigned long)
wr->sg_list[i].addr;
sge_len = wr->sg_list[i].length;
if ((sge_len + wqe->inline_len) >
BNXT_QPLIB_SWQE_MAX_INLINE_LENGTH) {
ibdev_err(&rdev->ibdev,
"Inline data size requested > supported value");
return -EINVAL;
}
sge_len = wr->sg_list[i].length;
memcpy(in_data, sge_addr, sge_len);
in_data += wr->sg_list[i].length;
wqe->inline_len += wr->sg_list[i].length;
}
return wqe->inline_len;
}
static int bnxt_re_copy_wr_payload(struct bnxt_re_dev *rdev,
const struct ib_send_wr *wr,
struct bnxt_qplib_swqe *wqe)
{
int payload_sz = 0;
if (wr->send_flags & IB_SEND_INLINE)
payload_sz = bnxt_re_copy_inline_data(rdev, wr, wqe);
else
payload_sz = bnxt_re_build_sgl(wr->sg_list, wqe->sg_list,
wqe->num_sge);
return payload_sz;
}
static void bnxt_ud_qp_hw_stall_workaround(struct bnxt_re_qp *qp)
{
if ((qp->ib_qp.qp_type == IB_QPT_UD ||
qp->ib_qp.qp_type == IB_QPT_GSI ||
qp->ib_qp.qp_type == IB_QPT_RAW_ETHERTYPE) &&
qp->qplib_qp.wqe_cnt == BNXT_RE_UD_QP_HW_STALL) {
int qp_attr_mask;
struct ib_qp_attr qp_attr;
qp_attr_mask = IB_QP_STATE;
qp_attr.qp_state = IB_QPS_RTS;
bnxt_re_modify_qp(&qp->ib_qp, &qp_attr, qp_attr_mask, NULL);
qp->qplib_qp.wqe_cnt = 0;
}
}
static int bnxt_re_post_send_shadow_qp(struct bnxt_re_dev *rdev,
struct bnxt_re_qp *qp,
const struct ib_send_wr *wr)
{
int rc = 0, payload_sz = 0;
unsigned long flags;
spin_lock_irqsave(&qp->sq_lock, flags);
while (wr) {
struct bnxt_qplib_swqe wqe = {};
wqe.num_sge = wr->num_sge;
if (wr->num_sge > qp->qplib_qp.sq.max_sge) {
ibdev_err(&rdev->ibdev,
"Limit exceeded for Send SGEs");
rc = -EINVAL;
goto bad;
}
payload_sz = bnxt_re_copy_wr_payload(qp->rdev, wr, &wqe);
if (payload_sz < 0) {
rc = -EINVAL;
goto bad;
}
wqe.wr_id = wr->wr_id;
wqe.type = BNXT_QPLIB_SWQE_TYPE_SEND;
rc = bnxt_re_build_send_wqe(qp, wr, &wqe);
if (!rc)
rc = bnxt_qplib_post_send(&qp->qplib_qp, &wqe);
bad:
if (rc) {
ibdev_err(&rdev->ibdev,
"Post send failed opcode = %#x rc = %d",
wr->opcode, rc);
break;
}
wr = wr->next;
}
bnxt_qplib_post_send_db(&qp->qplib_qp);
if (!bnxt_qplib_is_chip_gen_p5_p7(qp->rdev->chip_ctx))
bnxt_ud_qp_hw_stall_workaround(qp);
spin_unlock_irqrestore(&qp->sq_lock, flags);
return rc;
}
static void bnxt_re_legacy_set_uc_fence(struct bnxt_qplib_swqe *wqe)
{
if (wqe->type == BNXT_QPLIB_SWQE_TYPE_LOCAL_INV ||
wqe->type == BNXT_QPLIB_SWQE_TYPE_FAST_REG_MR ||
wqe->type == BNXT_QPLIB_SWQE_TYPE_REG_MR ||
wqe->type == BNXT_QPLIB_SWQE_TYPE_BIND_MW)
wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE;
}
int bnxt_re_post_send(struct ib_qp *ib_qp, const struct ib_send_wr *wr,
const struct ib_send_wr **bad_wr)
{
struct bnxt_re_qp *qp = container_of(ib_qp, struct bnxt_re_qp, ib_qp);
struct bnxt_qplib_swqe wqe;
int rc = 0, payload_sz = 0;
unsigned long flags;
spin_lock_irqsave(&qp->sq_lock, flags);
while (wr) {
memset(&wqe, 0, sizeof(wqe));
wqe.num_sge = wr->num_sge;
if (wr->num_sge > qp->qplib_qp.sq.max_sge) {
ibdev_err(&qp->rdev->ibdev,
"Limit exceeded for Send SGEs");
rc = -EINVAL;
goto bad;
}
payload_sz = bnxt_re_copy_wr_payload(qp->rdev, wr, &wqe);
if (payload_sz < 0) {
rc = -EINVAL;
goto bad;
}
wqe.wr_id = wr->wr_id;
switch (wr->opcode) {
case IB_WR_SEND:
case IB_WR_SEND_WITH_IMM:
if (qp->qplib_qp.type == CMDQ_CREATE_QP1_TYPE_GSI) {
rc = bnxt_re_build_qp1_send_v2(qp, wr, &wqe,
payload_sz);
if (rc)
goto bad;
wqe.rawqp1.lflags |=
SQ_SEND_RAWETH_QP1_LFLAGS_ROCE_CRC;
}
if (wr->send_flags & IB_SEND_IP_CSUM)
wqe.rawqp1.lflags |=
SQ_SEND_RAWETH_QP1_LFLAGS_IP_CHKSUM;
fallthrough;
case IB_WR_SEND_WITH_INV:
rc = bnxt_re_build_send_wqe(qp, wr, &wqe);
break;
case IB_WR_RDMA_WRITE:
case IB_WR_RDMA_WRITE_WITH_IMM:
case IB_WR_RDMA_READ:
rc = bnxt_re_build_rdma_wqe(wr, &wqe);
break;
case IB_WR_ATOMIC_CMP_AND_SWP:
case IB_WR_ATOMIC_FETCH_AND_ADD:
rc = bnxt_re_build_atomic_wqe(wr, &wqe);
break;
case IB_WR_RDMA_READ_WITH_INV:
ibdev_err(&qp->rdev->ibdev,
"RDMA Read with Invalidate is not supported");
rc = -EINVAL;
goto bad;
case IB_WR_LOCAL_INV:
rc = bnxt_re_build_inv_wqe(wr, &wqe);
break;
case IB_WR_REG_MR:
rc = bnxt_re_build_reg_wqe(reg_wr(wr), &wqe);
break;
default:
ibdev_err(&qp->rdev->ibdev,
"WR (%#x) is not supported", wr->opcode);
rc = -EINVAL;
goto bad;
}
if (!rc) {
if (!bnxt_qplib_is_chip_gen_p5_p7(qp->rdev->chip_ctx))
bnxt_re_legacy_set_uc_fence(&wqe);
rc = bnxt_qplib_post_send(&qp->qplib_qp, &wqe);
}
bad:
if (rc) {
ibdev_err(&qp->rdev->ibdev,
"post_send failed op:%#x qps = %#x rc = %d\n",
wr->opcode, qp->qplib_qp.state, rc);
*bad_wr = wr;
break;
}
wr = wr->next;
}
bnxt_qplib_post_send_db(&qp->qplib_qp);
if (!bnxt_qplib_is_chip_gen_p5_p7(qp->rdev->chip_ctx))
bnxt_ud_qp_hw_stall_workaround(qp);
spin_unlock_irqrestore(&qp->sq_lock, flags);
return rc;
}
static int bnxt_re_post_recv_shadow_qp(struct bnxt_re_dev *rdev,
struct bnxt_re_qp *qp,
const struct ib_recv_wr *wr)
{
struct bnxt_qplib_swqe wqe;
int rc = 0;
while (wr) {
memset(&wqe, 0, sizeof(wqe));
wqe.num_sge = wr->num_sge;
if (wr->num_sge > qp->qplib_qp.rq.max_sge) {
ibdev_err(&rdev->ibdev,
"Limit exceeded for Receive SGEs");
rc = -EINVAL;
break;
}
bnxt_re_build_sgl(wr->sg_list, wqe.sg_list, wr->num_sge);
wqe.wr_id = wr->wr_id;
wqe.type = BNXT_QPLIB_SWQE_TYPE_RECV;
rc = bnxt_qplib_post_recv(&qp->qplib_qp, &wqe);
if (rc)
break;
wr = wr->next;
}
if (!rc)
bnxt_qplib_post_recv_db(&qp->qplib_qp);
return rc;
}
int bnxt_re_post_recv(struct ib_qp *ib_qp, const struct ib_recv_wr *wr,
const struct ib_recv_wr **bad_wr)
{
struct bnxt_re_qp *qp = container_of(ib_qp, struct bnxt_re_qp, ib_qp);
struct bnxt_qplib_swqe wqe;
int rc = 0, payload_sz = 0;
unsigned long flags;
u32 count = 0;
spin_lock_irqsave(&qp->rq_lock, flags);
while (wr) {
memset(&wqe, 0, sizeof(wqe));
wqe.num_sge = wr->num_sge;
if (wr->num_sge > qp->qplib_qp.rq.max_sge) {
ibdev_err(&qp->rdev->ibdev,
"Limit exceeded for Receive SGEs");
rc = -EINVAL;
*bad_wr = wr;
break;
}
payload_sz = bnxt_re_build_sgl(wr->sg_list, wqe.sg_list,
wr->num_sge);
wqe.wr_id = wr->wr_id;
wqe.type = BNXT_QPLIB_SWQE_TYPE_RECV;
if (ib_qp->qp_type == IB_QPT_GSI &&
qp->qplib_qp.type != CMDQ_CREATE_QP_TYPE_GSI)
rc = bnxt_re_build_qp1_shadow_qp_recv(qp, wr, &wqe,
payload_sz);
if (!rc)
rc = bnxt_qplib_post_recv(&qp->qplib_qp, &wqe);
if (rc) {
*bad_wr = wr;
break;
}
if (++count >= BNXT_RE_RQ_WQE_THRESHOLD) {
bnxt_qplib_post_recv_db(&qp->qplib_qp);
count = 0;
}
wr = wr->next;
}
if (count)
bnxt_qplib_post_recv_db(&qp->qplib_qp);
spin_unlock_irqrestore(&qp->rq_lock, flags);
return rc;
}
static struct bnxt_qplib_nq *bnxt_re_get_nq(struct bnxt_re_dev *rdev)
{
int min, indx;
mutex_lock(&rdev->nqr->load_lock);
for (indx = 0, min = 0; indx < (rdev->nqr->num_msix - 1); indx++) {
if (rdev->nqr->nq[min].load > rdev->nqr->nq[indx].load)
min = indx;
}
rdev->nqr->nq[min].load++;
mutex_unlock(&rdev->nqr->load_lock);
return &rdev->nqr->nq[min];
}
static void bnxt_re_put_nq(struct bnxt_re_dev *rdev, struct bnxt_qplib_nq *nq)
{
mutex_lock(&rdev->nqr->load_lock);
nq->load--;
mutex_unlock(&rdev->nqr->load_lock);
}
int bnxt_re_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata)
{
struct bnxt_qplib_chip_ctx *cctx;
struct bnxt_qplib_nq *nq;
struct bnxt_re_dev *rdev;
struct bnxt_re_cq *cq;
int ret;
cq = container_of(ib_cq, struct bnxt_re_cq, ib_cq);
rdev = cq->rdev;
nq = cq->qplib_cq.nq;
cctx = rdev->chip_ctx;
ret = ib_is_udata_in_empty(udata);
if (ret)
return ret;
if (cctx->modes.toggle_bits & BNXT_QPLIB_CQ_TOGGLE_BIT)
hash_del(&cq->hash_entry);
bnxt_qplib_destroy_cq(&rdev->qplib_res, &cq->qplib_cq);
if (cctx->modes.toggle_bits & BNXT_QPLIB_CQ_TOGGLE_BIT)
free_page((unsigned long)cq->uctx_cq_page);
bnxt_re_put_nq(rdev, nq);
atomic_dec(&rdev->stats.res.cq_count);
kfree(cq->cql);
ib_umem_release(cq->umem);
return ib_respond_empty_udata(udata);
}
int bnxt_re_create_user_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
struct uverbs_attr_bundle *attrs)
{
struct bnxt_re_cq *cq = container_of(ibcq, struct bnxt_re_cq, ib_cq);
struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibcq->device, ibdev);
struct ib_udata *udata = &attrs->driver_udata;
struct bnxt_re_ucontext *uctx =
rdma_udata_to_drv_context(udata, struct bnxt_re_ucontext, ib_uctx);
struct bnxt_qplib_dev_attr *dev_attr = rdev->dev_attr;
struct bnxt_qplib_chip_ctx *cctx;
struct bnxt_re_cq_resp resp = {};
struct bnxt_re_cq_req req;
int rc;
u32 active_cqs, entries;
if (attr->flags)
return -EOPNOTSUPP;
if (attr->cqe > dev_attr->max_cq_wqes)
return -EINVAL;
cq->rdev = rdev;
cctx = rdev->chip_ctx;
cq->qplib_cq.cq_handle = (u64)(unsigned long)(&cq->qplib_cq);
rc = ib_copy_validate_udata_in_cm(udata, req, cq_handle,
BNXT_RE_CQ_FIXED_NUM_CQE_ENABLE);
if (rc)
return rc;
if (req.comp_mask & BNXT_RE_CQ_FIXED_NUM_CQE_ENABLE)
entries = attr->cqe;
else
entries = bnxt_re_init_depth(attr->cqe + 1,
dev_attr->max_cq_wqes + 1, uctx);
cq->umem = ib_umem_get_cq_buf_or_va(&rdev->ibdev, attrs, req.cq_va,
entries * sizeof(struct cq_base),
IB_ACCESS_LOCAL_WRITE);
if (IS_ERR(cq->umem))
return PTR_ERR(cq->umem);
rc = bnxt_re_setup_sginfo(rdev, cq->umem, &cq->qplib_cq.sg_info);
if (rc)
goto free_umem;
cq->qplib_cq.dpi = &uctx->dpi;
cq->qplib_cq.max_wqe = entries;
cq->qplib_cq.coalescing = &rdev->cq_coalescing;
cq->qplib_cq.nq = bnxt_re_get_nq(rdev);
cq->qplib_cq.cnq_hw_ring_id = cq->qplib_cq.nq->ring_id;
rc = bnxt_qplib_create_cq(&rdev->qplib_res, &cq->qplib_cq);
if (rc)
goto free_umem;
cq->ib_cq.cqe = entries;
cq->cq_period = cq->qplib_cq.period;
active_cqs = atomic_inc_return(&rdev->stats.res.cq_count);
if (active_cqs > rdev->stats.res.cq_watermark)
rdev->stats.res.cq_watermark = active_cqs;
spin_lock_init(&cq->cq_lock);
if (cctx->modes.toggle_bits & BNXT_QPLIB_CQ_TOGGLE_BIT) {
hash_add(rdev->cq_hash, &cq->hash_entry, cq->qplib_cq.id);
cq->uctx_cq_page = (void *)get_zeroed_page(GFP_KERNEL);
if (!cq->uctx_cq_page) {
rc = -ENOMEM;
goto destroy_cq;
}
resp.comp_mask |= BNXT_RE_CQ_TOGGLE_PAGE_SUPPORT;
}
resp.cqid = cq->qplib_cq.id;
resp.tail = cq->qplib_cq.hwq.cons;
resp.phase = cq->qplib_cq.period;
rc = ib_respond_udata(udata, resp);
if (rc)
goto free_mem;
return 0;
free_mem:
free_page((unsigned long)cq->uctx_cq_page);
destroy_cq:
bnxt_qplib_destroy_cq(&rdev->qplib_res, &cq->qplib_cq);
free_umem:
ib_umem_release(cq->umem);
return rc;
}
int bnxt_re_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
struct uverbs_attr_bundle *attrs)
{
struct bnxt_re_cq *cq = container_of(ibcq, struct bnxt_re_cq, ib_cq);
struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibcq->device, ibdev);
struct bnxt_qplib_dev_attr *dev_attr = rdev->dev_attr;
int rc;
u32 active_cqs;
if (attr->flags)
return -EOPNOTSUPP;
if (attr->cqe > dev_attr->max_cq_wqes)
return -EINVAL;
cq->rdev = rdev;
cq->qplib_cq.cq_handle = (u64)(unsigned long)(&cq->qplib_cq);
cq->max_cql = attr->cqe + 1;
cq->cql = kzalloc_objs(struct bnxt_qplib_cqe, cq->max_cql);
if (!cq->cql)
return -ENOMEM;
cq->qplib_cq.sg_info.pgsize = SZ_4K;
cq->qplib_cq.sg_info.pgshft = __builtin_ctz(SZ_4K);
cq->qplib_cq.dpi = &rdev->dpi_privileged;
cq->qplib_cq.max_wqe = cq->max_cql;
cq->qplib_cq.coalescing = &rdev->cq_coalescing;
cq->qplib_cq.nq = bnxt_re_get_nq(rdev);
cq->qplib_cq.cnq_hw_ring_id = cq->qplib_cq.nq->ring_id;
rc = bnxt_qplib_create_cq(&rdev->qplib_res, &cq->qplib_cq);
if (rc) {
ibdev_err(&rdev->ibdev, "Failed to create HW CQ");
goto fail;
}
cq->ib_cq.cqe = cq->max_cql;
cq->cq_period = cq->qplib_cq.period;
active_cqs = atomic_inc_return(&rdev->stats.res.cq_count);
if (active_cqs > rdev->stats.res.cq_watermark)
rdev->stats.res.cq_watermark = active_cqs;
spin_lock_init(&cq->cq_lock);
return 0;
fail:
kfree(cq->cql);
return rc;
}
static void bnxt_re_resize_cq_complete(struct bnxt_re_cq *cq)
{
struct bnxt_re_dev *rdev = cq->rdev;
bnxt_qplib_resize_cq_complete(&rdev->qplib_res, &cq->qplib_cq);
cq->qplib_cq.max_wqe = cq->resize_cqe;
if (cq->resize_umem) {
ib_umem_release(cq->umem);
cq->umem = cq->resize_umem;
cq->resize_umem = NULL;
cq->resize_cqe = 0;
}
}
int bnxt_re_resize_cq(struct ib_cq *ibcq, unsigned int cqe,
struct ib_udata *udata)
{
struct bnxt_qplib_sg_info sg_info = {};
struct bnxt_qplib_dpi *orig_dpi = NULL;
struct bnxt_qplib_dev_attr *dev_attr;
struct bnxt_re_ucontext *uctx = NULL;
struct bnxt_re_resize_cq_req req;
struct bnxt_re_dev *rdev;
struct bnxt_re_cq *cq;
int rc;
u32 entries;
cq = container_of(ibcq, struct bnxt_re_cq, ib_cq);
rdev = cq->rdev;
dev_attr = rdev->dev_attr;
if (!ibcq->uobject) {
ibdev_err(&rdev->ibdev, "Kernel CQ Resize not supported");
return -EOPNOTSUPP;
}
if (cq->resize_umem) {
ibdev_err(&rdev->ibdev, "Resize CQ %#x failed - Busy",
cq->qplib_cq.id);
return -EBUSY;
}
if (cqe > dev_attr->max_cq_wqes)
return -EINVAL;
uctx = rdma_udata_to_drv_context(udata, struct bnxt_re_ucontext, ib_uctx);
entries = bnxt_re_init_depth(cqe + 1, dev_attr->max_cq_wqes + 1, uctx);
rc = ib_copy_validate_udata_in(udata, req, cq_va);
if (rc)
goto fail;
cq->resize_umem = ib_umem_get_va(&rdev->ibdev, req.cq_va,
entries * sizeof(struct cq_base),
IB_ACCESS_LOCAL_WRITE);
if (IS_ERR(cq->resize_umem)) {
rc = PTR_ERR(cq->resize_umem);
ibdev_err(&rdev->ibdev, "%s: ib_umem_get_va failed! rc = %pe\n",
__func__, cq->resize_umem);
cq->resize_umem = NULL;
goto fail;
}
cq->resize_cqe = entries;
memcpy(&sg_info, &cq->qplib_cq.sg_info, sizeof(sg_info));
orig_dpi = cq->qplib_cq.dpi;
cq->qplib_cq.sg_info.umem = cq->resize_umem;
cq->qplib_cq.sg_info.pgsize = PAGE_SIZE;
cq->qplib_cq.sg_info.pgshft = PAGE_SHIFT;
cq->qplib_cq.dpi = &uctx->dpi;
rc = bnxt_qplib_resize_cq(&rdev->qplib_res, &cq->qplib_cq, entries);
if (rc) {
ibdev_err(&rdev->ibdev, "Resize HW CQ %#x failed!",
cq->qplib_cq.id);
goto fail;
}
cq->ib_cq.cqe = cq->resize_cqe;
atomic_inc(&rdev->stats.res.resize_count);
return ib_respond_empty_udata(udata);
fail:
if (cq->resize_umem) {
ib_umem_release(cq->resize_umem);
cq->resize_umem = NULL;
cq->resize_cqe = 0;
memcpy(&cq->qplib_cq.sg_info, &sg_info, sizeof(sg_info));
cq->qplib_cq.dpi = orig_dpi;
}
return rc;
}
static u8 __req_to_ib_wc_status(u8 qstatus)
{
switch (qstatus) {
case CQ_REQ_STATUS_OK:
return IB_WC_SUCCESS;
case CQ_REQ_STATUS_BAD_RESPONSE_ERR:
return IB_WC_BAD_RESP_ERR;
case CQ_REQ_STATUS_LOCAL_LENGTH_ERR:
return IB_WC_LOC_LEN_ERR;
case CQ_REQ_STATUS_LOCAL_QP_OPERATION_ERR:
return IB_WC_LOC_QP_OP_ERR;
case CQ_REQ_STATUS_LOCAL_PROTECTION_ERR:
return IB_WC_LOC_PROT_ERR;
case CQ_REQ_STATUS_MEMORY_MGT_OPERATION_ERR:
return IB_WC_GENERAL_ERR;
case CQ_REQ_STATUS_REMOTE_INVALID_REQUEST_ERR:
return IB_WC_REM_INV_REQ_ERR;
case CQ_REQ_STATUS_REMOTE_ACCESS_ERR:
return IB_WC_REM_ACCESS_ERR;
case CQ_REQ_STATUS_REMOTE_OPERATION_ERR:
return IB_WC_REM_OP_ERR;
case CQ_REQ_STATUS_RNR_NAK_RETRY_CNT_ERR:
return IB_WC_RNR_RETRY_EXC_ERR;
case CQ_REQ_STATUS_TRANSPORT_RETRY_CNT_ERR:
return IB_WC_RETRY_EXC_ERR;
case CQ_REQ_STATUS_WORK_REQUEST_FLUSHED_ERR:
return IB_WC_WR_FLUSH_ERR;
default:
return IB_WC_GENERAL_ERR;
}
return 0;
}
static u8 __rawqp1_to_ib_wc_status(u8 qstatus)
{
switch (qstatus) {
case CQ_RES_RAWETH_QP1_STATUS_OK:
return IB_WC_SUCCESS;
case CQ_RES_RAWETH_QP1_STATUS_LOCAL_ACCESS_ERROR:
return IB_WC_LOC_ACCESS_ERR;
case CQ_RES_RAWETH_QP1_STATUS_HW_LOCAL_LENGTH_ERR:
return IB_WC_LOC_LEN_ERR;
case CQ_RES_RAWETH_QP1_STATUS_LOCAL_PROTECTION_ERR:
return IB_WC_LOC_PROT_ERR;
case CQ_RES_RAWETH_QP1_STATUS_LOCAL_QP_OPERATION_ERR:
return IB_WC_LOC_QP_OP_ERR;
case CQ_RES_RAWETH_QP1_STATUS_MEMORY_MGT_OPERATION_ERR:
return IB_WC_GENERAL_ERR;
case CQ_RES_RAWETH_QP1_STATUS_WORK_REQUEST_FLUSHED_ERR:
return IB_WC_WR_FLUSH_ERR;
case CQ_RES_RAWETH_QP1_STATUS_HW_FLUSH_ERR:
return IB_WC_WR_FLUSH_ERR;
default:
return IB_WC_GENERAL_ERR;
}
}
static u8 __rc_to_ib_wc_status(u8 qstatus)
{
switch (qstatus) {
case CQ_RES_RC_STATUS_OK:
return IB_WC_SUCCESS;
case CQ_RES_RC_STATUS_LOCAL_ACCESS_ERROR:
return IB_WC_LOC_ACCESS_ERR;
case CQ_RES_RC_STATUS_LOCAL_LENGTH_ERR:
return IB_WC_LOC_LEN_ERR;
case CQ_RES_RC_STATUS_LOCAL_PROTECTION_ERR:
return IB_WC_LOC_PROT_ERR;
case CQ_RES_RC_STATUS_LOCAL_QP_OPERATION_ERR:
return IB_WC_LOC_QP_OP_ERR;
case CQ_RES_RC_STATUS_MEMORY_MGT_OPERATION_ERR:
return IB_WC_GENERAL_ERR;
case CQ_RES_RC_STATUS_REMOTE_INVALID_REQUEST_ERR:
return IB_WC_REM_INV_REQ_ERR;
case CQ_RES_RC_STATUS_WORK_REQUEST_FLUSHED_ERR:
return IB_WC_WR_FLUSH_ERR;
case CQ_RES_RC_STATUS_HW_FLUSH_ERR:
return IB_WC_WR_FLUSH_ERR;
default:
return IB_WC_GENERAL_ERR;
}
}
static void bnxt_re_process_req_wc(struct ib_wc *wc, struct bnxt_qplib_cqe *cqe)
{
switch (cqe->type) {
case BNXT_QPLIB_SWQE_TYPE_SEND:
wc->opcode = IB_WC_SEND;
break;
case BNXT_QPLIB_SWQE_TYPE_SEND_WITH_IMM:
wc->opcode = IB_WC_SEND;
wc->wc_flags |= IB_WC_WITH_IMM;
break;
case BNXT_QPLIB_SWQE_TYPE_SEND_WITH_INV:
wc->opcode = IB_WC_SEND;
wc->wc_flags |= IB_WC_WITH_INVALIDATE;
break;
case BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE:
wc->opcode = IB_WC_RDMA_WRITE;
break;
case BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE_WITH_IMM:
wc->opcode = IB_WC_RDMA_WRITE;
wc->wc_flags |= IB_WC_WITH_IMM;
break;
case BNXT_QPLIB_SWQE_TYPE_RDMA_READ:
wc->opcode = IB_WC_RDMA_READ;
break;
case BNXT_QPLIB_SWQE_TYPE_ATOMIC_CMP_AND_SWP:
wc->opcode = IB_WC_COMP_SWAP;
break;
case BNXT_QPLIB_SWQE_TYPE_ATOMIC_FETCH_AND_ADD:
wc->opcode = IB_WC_FETCH_ADD;
break;
case BNXT_QPLIB_SWQE_TYPE_LOCAL_INV:
wc->opcode = IB_WC_LOCAL_INV;
break;
case BNXT_QPLIB_SWQE_TYPE_REG_MR:
wc->opcode = IB_WC_REG_MR;
break;
default:
wc->opcode = IB_WC_SEND;
break;
}
wc->status = __req_to_ib_wc_status(cqe->status);
}
static int bnxt_re_check_packet_type(u16 raweth_qp1_flags,
u16 raweth_qp1_flags2)
{
bool is_ipv6 = false, is_ipv4 = false;
if ((raweth_qp1_flags & CQ_RES_RAWETH_QP1_RAWETH_QP1_FLAGS_ITYPE_ROCE)
!= CQ_RES_RAWETH_QP1_RAWETH_QP1_FLAGS_ITYPE_ROCE)
return -1;
if (raweth_qp1_flags2 &
CQ_RES_RAWETH_QP1_RAWETH_QP1_FLAGS2_IP_CS_CALC &&
raweth_qp1_flags2 &
CQ_RES_RAWETH_QP1_RAWETH_QP1_FLAGS2_L4_CS_CALC) {
(raweth_qp1_flags2 &
CQ_RES_RAWETH_QP1_RAWETH_QP1_FLAGS2_IP_TYPE) ?
(is_ipv6 = true) : (is_ipv4 = true);
return ((is_ipv6) ?
BNXT_RE_ROCEV2_IPV6_PACKET :
BNXT_RE_ROCEV2_IPV4_PACKET);
} else {
return BNXT_RE_ROCE_V1_PACKET;
}
}
static int bnxt_re_to_ib_nw_type(int nw_type)
{
u8 nw_hdr_type = 0xFF;
switch (nw_type) {
case BNXT_RE_ROCE_V1_PACKET:
nw_hdr_type = RDMA_NETWORK_ROCE_V1;
break;
case BNXT_RE_ROCEV2_IPV4_PACKET:
nw_hdr_type = RDMA_NETWORK_IPV4;
break;
case BNXT_RE_ROCEV2_IPV6_PACKET:
nw_hdr_type = RDMA_NETWORK_IPV6;
break;
}
return nw_hdr_type;
}
static bool bnxt_re_is_loopback_packet(struct bnxt_re_dev *rdev,
void *rq_hdr_buf)
{
u8 *tmp_buf = NULL;
struct ethhdr *eth_hdr;
u16 eth_type;
bool rc = false;
tmp_buf = (u8 *)rq_hdr_buf;
if (!ether_addr_equal(tmp_buf, rdev->netdev->dev_addr)) {
tmp_buf += 4;
eth_hdr = (struct ethhdr *)tmp_buf;
eth_type = ntohs(eth_hdr->h_proto);
switch (eth_type) {
case ETH_P_IBOE:
rc = true;
break;
case ETH_P_IP:
case ETH_P_IPV6: {
u32 len;
struct udphdr *udp_hdr;
len = (eth_type == ETH_P_IP ? sizeof(struct iphdr) :
sizeof(struct ipv6hdr));
tmp_buf += sizeof(struct ethhdr) + len;
udp_hdr = (struct udphdr *)tmp_buf;
if (ntohs(udp_hdr->dest) ==
ROCE_V2_UDP_DPORT)
rc = true;
break;
}
default:
break;
}
}
return rc;
}
static int bnxt_re_process_raw_qp_pkt_rx(struct bnxt_re_qp *gsi_qp,
struct bnxt_qplib_cqe *cqe)
{
struct bnxt_re_dev *rdev = gsi_qp->rdev;
struct bnxt_re_sqp_entries *sqp_entry = NULL;
struct bnxt_re_qp *gsi_sqp = rdev->gsi_ctx.gsi_sqp;
dma_addr_t shrq_hdr_buf_map;
struct ib_sge s_sge[2] = {};
struct ib_sge r_sge[2] = {};
struct bnxt_re_ah *gsi_sah;
struct ib_recv_wr rwr = {};
dma_addr_t rq_hdr_buf_map;
struct ib_ud_wr udwr = {};
struct ib_send_wr *swr;
u32 skip_bytes = 0;
int pkt_type = 0;
void *rq_hdr_buf;
u32 offset = 0;
u32 tbl_idx;
int rc;
swr = &udwr.wr;
tbl_idx = cqe->wr_id;
rq_hdr_buf = gsi_qp->qplib_qp.rq_hdr_buf +
(tbl_idx * gsi_qp->qplib_qp.rq_hdr_buf_size);
rq_hdr_buf_map = bnxt_qplib_get_qp_buf_from_index(&gsi_qp->qplib_qp,
tbl_idx);
shrq_hdr_buf_map = bnxt_qplib_get_qp_buf_from_index(&gsi_qp->qplib_qp,
tbl_idx);
sqp_entry = &rdev->gsi_ctx.sqp_tbl[tbl_idx];
memcpy(&sqp_entry->cqe, cqe, sizeof(struct bnxt_qplib_cqe));
sqp_entry->qp1_qp = gsi_qp;
pkt_type = bnxt_re_check_packet_type(cqe->raweth_qp1_flags,
cqe->raweth_qp1_flags2);
if (pkt_type < 0) {
ibdev_err(&rdev->ibdev, "Invalid packet\n");
return -EINVAL;
}
if (pkt_type == BNXT_RE_ROCEV2_IPV4_PACKET)
offset = 20;
if (bnxt_re_is_loopback_packet(rdev, rq_hdr_buf))
skip_bytes = 4;
s_sge[0].addr = rq_hdr_buf_map + BNXT_QPLIB_MAX_QP1_RQ_ETH_HDR_SIZE
+ skip_bytes;
s_sge[0].lkey = 0xFFFFFFFF;
s_sge[0].length = offset ? BNXT_QPLIB_MAX_GRH_HDR_SIZE_IPV4 :
BNXT_QPLIB_MAX_GRH_HDR_SIZE_IPV6;
s_sge[1].addr = s_sge[0].addr + s_sge[0].length +
BNXT_QPLIB_MAX_QP1_RQ_BDETH_HDR_SIZE;
if (pkt_type != BNXT_RE_ROCE_V1_PACKET)
s_sge[1].addr += 8;
s_sge[1].lkey = 0xFFFFFFFF;
s_sge[1].length = 256;
r_sge[0].addr = shrq_hdr_buf_map;
r_sge[0].lkey = 0xFFFFFFFF;
r_sge[0].length = 40;
r_sge[1].addr = sqp_entry->sge.addr + offset;
r_sge[1].lkey = sqp_entry->sge.lkey;
r_sge[1].length = BNXT_QPLIB_MAX_GRH_HDR_SIZE_IPV6 + 256 - offset;
rwr.num_sge = 2;
rwr.sg_list = r_sge;
rwr.wr_id = tbl_idx;
rwr.next = NULL;
rc = bnxt_re_post_recv_shadow_qp(rdev, gsi_sqp, &rwr);
if (rc) {
ibdev_err(&rdev->ibdev,
"Failed to post Rx buffers to shadow QP");
return -ENOMEM;
}
swr->num_sge = 2;
swr->sg_list = s_sge;
swr->wr_id = tbl_idx;
swr->opcode = IB_WR_SEND;
swr->next = NULL;
gsi_sah = rdev->gsi_ctx.gsi_sah;
udwr.ah = &gsi_sah->ib_ah;
udwr.remote_qpn = gsi_sqp->qplib_qp.id;
udwr.remote_qkey = gsi_sqp->qplib_qp.qkey;
return bnxt_re_post_send_shadow_qp(rdev, gsi_sqp, swr);
}
static void bnxt_re_process_res_rawqp1_wc(struct ib_wc *wc,
struct bnxt_qplib_cqe *cqe)
{
wc->opcode = IB_WC_RECV;
wc->status = __rawqp1_to_ib_wc_status(cqe->status);
wc->wc_flags |= IB_WC_GRH;
}
static bool bnxt_re_check_if_vlan_valid(struct bnxt_re_dev *rdev,
u16 vlan_id)
{
if (!__vlan_find_dev_deep_rcu(rdev->netdev,
htons(ETH_P_8021Q), vlan_id))
return false;
return true;
}
static bool bnxt_re_is_vlan_pkt(struct bnxt_qplib_cqe *orig_cqe,
u16 *vid, u8 *sl)
{
bool ret = false;
u32 metadata;
u16 tpid;
metadata = orig_cqe->raweth_qp1_metadata;
if (orig_cqe->raweth_qp1_flags2 &
CQ_RES_RAWETH_QP1_RAWETH_QP1_FLAGS2_META_FORMAT_VLAN) {
tpid = ((metadata &
CQ_RES_RAWETH_QP1_RAWETH_QP1_METADATA_TPID_MASK) >>
CQ_RES_RAWETH_QP1_RAWETH_QP1_METADATA_TPID_SFT);
if (tpid == ETH_P_8021Q) {
*vid = metadata &
CQ_RES_RAWETH_QP1_RAWETH_QP1_METADATA_VID_MASK;
*sl = (metadata &
CQ_RES_RAWETH_QP1_RAWETH_QP1_METADATA_PRI_MASK) >>
CQ_RES_RAWETH_QP1_RAWETH_QP1_METADATA_PRI_SFT;
ret = true;
}
}
return ret;
}
static void bnxt_re_process_res_rc_wc(struct ib_wc *wc,
struct bnxt_qplib_cqe *cqe)
{
wc->opcode = IB_WC_RECV;
wc->status = __rc_to_ib_wc_status(cqe->status);
if (cqe->flags & CQ_RES_RC_FLAGS_IMM)
wc->wc_flags |= IB_WC_WITH_IMM;
if (cqe->flags & CQ_RES_RC_FLAGS_INV)
wc->wc_flags |= IB_WC_WITH_INVALIDATE;
if ((cqe->flags & (CQ_RES_RC_FLAGS_RDMA | CQ_RES_RC_FLAGS_IMM)) ==
(CQ_RES_RC_FLAGS_RDMA | CQ_RES_RC_FLAGS_IMM))
wc->opcode = IB_WC_RECV_RDMA_WITH_IMM;
}
static void bnxt_re_process_res_shadow_qp_wc(struct bnxt_re_qp *gsi_sqp,
struct ib_wc *wc,
struct bnxt_qplib_cqe *cqe)
{
struct bnxt_re_dev *rdev = gsi_sqp->rdev;
struct bnxt_re_qp *gsi_qp = NULL;
struct bnxt_qplib_cqe *orig_cqe = NULL;
struct bnxt_re_sqp_entries *sqp_entry = NULL;
int nw_type;
u32 tbl_idx;
u16 vlan_id;
u8 sl;
tbl_idx = cqe->wr_id;
sqp_entry = &rdev->gsi_ctx.sqp_tbl[tbl_idx];
gsi_qp = sqp_entry->qp1_qp;
orig_cqe = &sqp_entry->cqe;
wc->wr_id = sqp_entry->wrid;
wc->byte_len = orig_cqe->length;
wc->qp = &gsi_qp->ib_qp;
wc->ex.imm_data = cpu_to_be32(orig_cqe->immdata);
wc->src_qp = orig_cqe->src_qp;
memcpy(wc->smac, orig_cqe->smac, ETH_ALEN);
if (bnxt_re_is_vlan_pkt(orig_cqe, &vlan_id, &sl)) {
if (bnxt_re_check_if_vlan_valid(rdev, vlan_id)) {
wc->vlan_id = vlan_id;
wc->sl = sl;
wc->wc_flags |= IB_WC_WITH_VLAN;
}
}
wc->port_num = 1;
wc->vendor_err = orig_cqe->status;
wc->opcode = IB_WC_RECV;
wc->status = __rawqp1_to_ib_wc_status(orig_cqe->status);
wc->wc_flags |= IB_WC_GRH;
nw_type = bnxt_re_check_packet_type(orig_cqe->raweth_qp1_flags,
orig_cqe->raweth_qp1_flags2);
if (nw_type >= 0) {
wc->network_hdr_type = bnxt_re_to_ib_nw_type(nw_type);
wc->wc_flags |= IB_WC_WITH_NETWORK_HDR_TYPE;
}
}
static void bnxt_re_process_res_ud_wc(struct bnxt_re_qp *qp,
struct ib_wc *wc,
struct bnxt_qplib_cqe *cqe)
{
struct bnxt_re_dev *rdev;
u16 vlan_id = 0;
u8 nw_type;
rdev = qp->rdev;
wc->opcode = IB_WC_RECV;
wc->status = __rc_to_ib_wc_status(cqe->status);
if (cqe->flags & CQ_RES_UD_FLAGS_IMM)
wc->wc_flags |= IB_WC_WITH_IMM;
if (qp->qplib_qp.type == CMDQ_CREATE_QP_TYPE_GSI) {
wc->wc_flags |= IB_WC_GRH;
memcpy(wc->smac, cqe->smac, ETH_ALEN);
wc->wc_flags |= IB_WC_WITH_SMAC;
if (cqe->flags & CQ_RES_UD_FLAGS_META_FORMAT_VLAN) {
vlan_id = (cqe->cfa_meta & 0xFFF);
}
if (vlan_id && bnxt_re_check_if_vlan_valid(rdev, vlan_id)) {
wc->vlan_id = vlan_id;
wc->wc_flags |= IB_WC_WITH_VLAN;
}
nw_type = (cqe->flags & CQ_RES_UD_FLAGS_ROCE_IP_VER_MASK) >>
CQ_RES_UD_FLAGS_ROCE_IP_VER_SFT;
wc->network_hdr_type = bnxt_re_to_ib_nw_type(nw_type);
wc->wc_flags |= IB_WC_WITH_NETWORK_HDR_TYPE;
}
}
static int send_phantom_wqe(struct bnxt_re_qp *qp)
{
struct bnxt_qplib_qp *lib_qp = &qp->qplib_qp;
unsigned long flags;
int rc;
spin_lock_irqsave(&qp->sq_lock, flags);
rc = bnxt_re_bind_fence_mw(lib_qp);
if (!rc) {
lib_qp->sq.phantom_wqe_cnt++;
ibdev_dbg(&qp->rdev->ibdev,
"qp %#x sq->prod %#x sw_prod %#x phantom_wqe_cnt %d\n",
lib_qp->id, lib_qp->sq.hwq.prod,
HWQ_CMP(lib_qp->sq.hwq.prod, &lib_qp->sq.hwq),
lib_qp->sq.phantom_wqe_cnt);
}
spin_unlock_irqrestore(&qp->sq_lock, flags);
return rc;
}
int bnxt_re_poll_cq(struct ib_cq *ib_cq, int num_entries, struct ib_wc *wc)
{
struct bnxt_re_cq *cq = container_of(ib_cq, struct bnxt_re_cq, ib_cq);
struct bnxt_re_qp *qp, *sh_qp;
struct bnxt_qplib_cqe *cqe;
int i, ncqe, budget;
struct bnxt_qplib_q *sq;
struct bnxt_qplib_qp *lib_qp;
u32 tbl_idx;
struct bnxt_re_sqp_entries *sqp_entry = NULL;
unsigned long flags;
if (cq->umem) {
if (cq->resize_umem)
bnxt_re_resize_cq_complete(cq);
return 0;
}
spin_lock_irqsave(&cq->cq_lock, flags);
budget = min_t(u32, num_entries, cq->max_cql);
num_entries = budget;
if (!cq->cql) {
ibdev_err(&cq->rdev->ibdev, "POLL CQ : no CQL to use");
goto exit;
}
cqe = &cq->cql[0];
while (budget) {
lib_qp = NULL;
ncqe = bnxt_qplib_poll_cq(&cq->qplib_cq, cqe, budget, &lib_qp);
if (lib_qp) {
sq = &lib_qp->sq;
if (sq->send_phantom) {
qp = container_of(lib_qp,
struct bnxt_re_qp, qplib_qp);
if (send_phantom_wqe(qp) == -ENOMEM)
ibdev_err(&cq->rdev->ibdev,
"Phantom failed! Scheduled to send again\n");
else
sq->send_phantom = false;
}
}
if (ncqe < budget)
ncqe += bnxt_qplib_process_flush_list(&cq->qplib_cq,
cqe + ncqe,
budget - ncqe);
if (!ncqe)
break;
for (i = 0; i < ncqe; i++, cqe++) {
memset(wc, 0, sizeof(*wc));
wc->wr_id = cqe->wr_id;
wc->byte_len = cqe->length;
qp = container_of
((struct bnxt_qplib_qp *)
(unsigned long)(cqe->qp_handle),
struct bnxt_re_qp, qplib_qp);
wc->qp = &qp->ib_qp;
if (cqe->flags & CQ_RES_RC_FLAGS_IMM)
wc->ex.imm_data = cpu_to_be32(cqe->immdata);
else
wc->ex.invalidate_rkey = cqe->invrkey;
wc->src_qp = cqe->src_qp;
memcpy(wc->smac, cqe->smac, ETH_ALEN);
wc->port_num = 1;
wc->vendor_err = cqe->status;
switch (cqe->opcode) {
case CQ_BASE_CQE_TYPE_REQ:
sh_qp = qp->rdev->gsi_ctx.gsi_sqp;
if (sh_qp &&
qp->qplib_qp.id == sh_qp->qplib_qp.id) {
memset(wc, 0, sizeof(*wc));
continue;
}
bnxt_re_process_req_wc(wc, cqe);
break;
case CQ_BASE_CQE_TYPE_RES_RAWETH_QP1:
if (!cqe->status) {
int rc = 0;
rc = bnxt_re_process_raw_qp_pkt_rx
(qp, cqe);
if (!rc) {
memset(wc, 0, sizeof(*wc));
continue;
}
cqe->status = -1;
}
tbl_idx = cqe->wr_id;
sqp_entry = &cq->rdev->gsi_ctx.sqp_tbl[tbl_idx];
wc->wr_id = sqp_entry->wrid;
bnxt_re_process_res_rawqp1_wc(wc, cqe);
break;
case CQ_BASE_CQE_TYPE_RES_RC:
bnxt_re_process_res_rc_wc(wc, cqe);
break;
case CQ_BASE_CQE_TYPE_RES_UD:
sh_qp = qp->rdev->gsi_ctx.gsi_sqp;
if (sh_qp &&
qp->qplib_qp.id == sh_qp->qplib_qp.id) {
if (cqe->status) {
continue;
} else {
bnxt_re_process_res_shadow_qp_wc
(qp, wc, cqe);
break;
}
}
bnxt_re_process_res_ud_wc(qp, wc, cqe);
break;
default:
ibdev_err(&cq->rdev->ibdev,
"POLL CQ : type 0x%x not handled",
cqe->opcode);
continue;
}
wc++;
budget--;
}
}
exit:
spin_unlock_irqrestore(&cq->cq_lock, flags);
return num_entries - budget;
}
int bnxt_re_req_notify_cq(struct ib_cq *ib_cq,
enum ib_cq_notify_flags ib_cqn_flags)
{
struct bnxt_re_cq *cq = container_of(ib_cq, struct bnxt_re_cq, ib_cq);
int type = 0, rc = 0;
unsigned long flags;
spin_lock_irqsave(&cq->cq_lock, flags);
if (ib_cqn_flags & IB_CQ_NEXT_COMP)
type = DBC_DBC_TYPE_CQ_ARMALL;
else if (ib_cqn_flags & IB_CQ_SOLICITED)
type = DBC_DBC_TYPE_CQ_ARMSE;
if ((ib_cqn_flags & IB_CQ_REPORT_MISSED_EVENTS) &&
!(bnxt_qplib_is_cq_empty(&cq->qplib_cq))) {
rc = 1;
goto exit;
}
bnxt_qplib_req_notify_cq(&cq->qplib_cq, type);
exit:
spin_unlock_irqrestore(&cq->cq_lock, flags);
return rc;
}
struct ib_mr *bnxt_re_get_dma_mr(struct ib_pd *ib_pd, int mr_access_flags)
{
struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
struct bnxt_re_dev *rdev = pd->rdev;
struct bnxt_re_mr *mr;
u32 active_mrs;
int rc;
mr = kzalloc_obj(*mr);
if (!mr)
return ERR_PTR(-ENOMEM);
mr->rdev = rdev;
mr->qplib_mr.pd = &pd->qplib_pd;
mr->qplib_mr.access_flags = __from_ib_access_flags(mr_access_flags);
mr->qplib_mr.type = CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR;
if (mr_access_flags & IB_ACCESS_RELAXED_ORDERING)
bnxt_re_check_and_set_relaxed_ordering(rdev, &mr->qplib_mr);
rc = bnxt_qplib_alloc_mrw(&rdev->qplib_res, &mr->qplib_mr);
if (rc)
goto fail;
mr->qplib_mr.hwq.level = PBL_LVL_MAX;
mr->qplib_mr.total_size = -1;
rc = bnxt_qplib_reg_mr(&rdev->qplib_res, &mr->qplib_mr, NULL, 0,
PAGE_SIZE, false);
if (rc)
goto fail_mr;
mr->ib_mr.lkey = mr->qplib_mr.lkey;
if (mr_access_flags & (IB_ACCESS_REMOTE_WRITE | IB_ACCESS_REMOTE_READ |
IB_ACCESS_REMOTE_ATOMIC))
mr->ib_mr.rkey = mr->ib_mr.lkey;
active_mrs = atomic_inc_return(&rdev->stats.res.mr_count);
if (active_mrs > rdev->stats.res.mr_watermark)
rdev->stats.res.mr_watermark = active_mrs;
return &mr->ib_mr;
fail_mr:
bnxt_qplib_free_mrw(&rdev->qplib_res, &mr->qplib_mr);
fail:
kfree(mr);
return ERR_PTR(rc);
}
int bnxt_re_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata)
{
struct bnxt_re_mr *mr = container_of(ib_mr, struct bnxt_re_mr, ib_mr);
struct bnxt_re_dev *rdev = mr->rdev;
int rc;
rc = ib_is_udata_in_empty(udata);
if (rc)
return rc;
rc = bnxt_qplib_free_mrw(&rdev->qplib_res, &mr->qplib_mr);
if (rc) {
ibdev_err(&rdev->ibdev, "Dereg MR failed: %#x\n", rc);
return rc;
}
if (mr->pages) {
rc = bnxt_qplib_free_fast_reg_page_list(&rdev->qplib_res,
&mr->qplib_frpl);
kfree(mr->pages);
mr->npages = 0;
mr->pages = NULL;
}
ib_umem_release(mr->ib_umem);
kfree(mr);
atomic_dec(&rdev->stats.res.mr_count);
if (rc)
return rc;
return ib_respond_empty_udata(udata);
}
static int bnxt_re_set_page(struct ib_mr *ib_mr, u64 addr)
{
struct bnxt_re_mr *mr = container_of(ib_mr, struct bnxt_re_mr, ib_mr);
if (unlikely(mr->npages == mr->qplib_frpl.max_pg_ptrs))
return -ENOMEM;
mr->pages[mr->npages++] = addr;
return 0;
}
int bnxt_re_map_mr_sg(struct ib_mr *ib_mr, struct scatterlist *sg, int sg_nents,
unsigned int *sg_offset)
{
struct bnxt_re_mr *mr = container_of(ib_mr, struct bnxt_re_mr, ib_mr);
mr->npages = 0;
return ib_sg_to_pages(ib_mr, sg, sg_nents, sg_offset, bnxt_re_set_page);
}
struct ib_mr *bnxt_re_alloc_mr(struct ib_pd *ib_pd, enum ib_mr_type type,
u32 max_num_sg)
{
struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
struct bnxt_re_dev *rdev = pd->rdev;
struct bnxt_re_mr *mr = NULL;
u32 active_mrs;
int rc;
if (type != IB_MR_TYPE_MEM_REG) {
ibdev_dbg(&rdev->ibdev, "MR type 0x%x not supported", type);
return ERR_PTR(-EINVAL);
}
if (max_num_sg > MAX_PBL_LVL_1_PGS)
return ERR_PTR(-EINVAL);
mr = kzalloc_obj(*mr);
if (!mr)
return ERR_PTR(-ENOMEM);
mr->rdev = rdev;
mr->qplib_mr.pd = &pd->qplib_pd;
mr->qplib_mr.access_flags = BNXT_QPLIB_FR_PMR;
mr->qplib_mr.type = CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR;
rc = bnxt_qplib_alloc_mrw(&rdev->qplib_res, &mr->qplib_mr);
if (rc)
goto bail;
mr->ib_mr.lkey = mr->qplib_mr.lkey;
mr->ib_mr.rkey = mr->ib_mr.lkey;
mr->pages = kzalloc_objs(u64, max_num_sg);
if (!mr->pages) {
rc = -ENOMEM;
goto fail;
}
rc = bnxt_qplib_alloc_fast_reg_page_list(&rdev->qplib_res,
&mr->qplib_frpl, max_num_sg);
if (rc) {
ibdev_err(&rdev->ibdev,
"Failed to allocate HW FR page list");
goto fail_mr;
}
active_mrs = atomic_inc_return(&rdev->stats.res.mr_count);
if (active_mrs > rdev->stats.res.mr_watermark)
rdev->stats.res.mr_watermark = active_mrs;
return &mr->ib_mr;
fail_mr:
kfree(mr->pages);
fail:
bnxt_qplib_free_mrw(&rdev->qplib_res, &mr->qplib_mr);
bail:
kfree(mr);
return ERR_PTR(rc);
}
struct ib_mw *bnxt_re_alloc_mw(struct ib_pd *ib_pd, enum ib_mw_type type,
struct ib_udata *udata)
{
struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
struct bnxt_re_dev *rdev = pd->rdev;
struct bnxt_re_mw *mw;
u32 active_mws;
int rc;
rc = ib_is_udata_in_empty(udata);
if (rc)
return ERR_PTR(rc);
mw = kzalloc_obj(*mw);
if (!mw)
return ERR_PTR(-ENOMEM);
mw->rdev = rdev;
mw->qplib_mw.pd = &pd->qplib_pd;
mw->qplib_mw.type = (type == IB_MW_TYPE_1 ?
CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1 :
CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B);
rc = bnxt_qplib_alloc_mrw(&rdev->qplib_res, &mw->qplib_mw);
if (rc) {
ibdev_err(&rdev->ibdev, "Allocate MW failed!");
goto fail;
}
mw->ib_mw.rkey = mw->qplib_mw.rkey;
active_mws = atomic_inc_return(&rdev->stats.res.mw_count);
if (active_mws > rdev->stats.res.mw_watermark)
rdev->stats.res.mw_watermark = active_mws;
return &mw->ib_mw;
fail:
kfree(mw);
return ERR_PTR(rc);
}
int bnxt_re_dealloc_mw(struct ib_mw *ib_mw)
{
struct bnxt_re_mw *mw = container_of(ib_mw, struct bnxt_re_mw, ib_mw);
struct bnxt_re_dev *rdev = mw->rdev;
int rc;
rc = bnxt_qplib_free_mrw(&rdev->qplib_res, &mw->qplib_mw);
if (rc) {
ibdev_err(&rdev->ibdev, "Free MW failed: %#x\n", rc);
return rc;
}
kfree(mw);
atomic_dec(&rdev->stats.res.mw_count);
return rc;
}
static struct ib_mr *__bnxt_re_user_reg_mr(struct ib_pd *ib_pd, u64 length, u64 virt_addr,
int mr_access_flags, struct ib_umem *umem)
{
struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
struct bnxt_re_dev *rdev = pd->rdev;
unsigned long page_size;
struct bnxt_re_mr *mr;
int umem_pgs, rc;
u32 active_mrs;
if (length > BNXT_RE_MAX_MR_SIZE) {
ibdev_err(&rdev->ibdev, "MR Size: %lld > Max supported:%lld\n",
length, BNXT_RE_MAX_MR_SIZE);
return ERR_PTR(-ENOMEM);
}
page_size = ib_umem_find_best_pgsz(umem, BNXT_RE_PAGE_SIZE_SUPPORTED, virt_addr);
if (!page_size) {
ibdev_err(&rdev->ibdev, "umem page size unsupported!");
return ERR_PTR(-EINVAL);
}
mr = kzalloc_obj(*mr);
if (!mr)
return ERR_PTR(-ENOMEM);
mr->rdev = rdev;
mr->qplib_mr.pd = &pd->qplib_pd;
mr->qplib_mr.access_flags = __from_ib_access_flags(mr_access_flags);
mr->qplib_mr.type = CMDQ_ALLOCATE_MRW_MRW_FLAGS_MR;
if (!_is_alloc_mr_unified(rdev->dev_attr->dev_cap_flags)) {
rc = bnxt_qplib_alloc_mrw(&rdev->qplib_res, &mr->qplib_mr);
if (rc) {
ibdev_err(&rdev->ibdev, "Failed to allocate MR rc = %d", rc);
rc = -EIO;
goto free_mr;
}
mr->ib_mr.rkey = mr->qplib_mr.rkey;
} else {
mr->qplib_mr.flags = CMDQ_REGISTER_MR_FLAGS_ALLOC_MR;
}
mr->ib_umem = umem;
mr->qplib_mr.va = virt_addr;
mr->qplib_mr.total_size = length;
if (mr_access_flags & IB_ACCESS_RELAXED_ORDERING)
bnxt_re_check_and_set_relaxed_ordering(rdev, &mr->qplib_mr);
umem_pgs = ib_umem_num_dma_blocks(umem, page_size);
rc = bnxt_qplib_reg_mr(&rdev->qplib_res, &mr->qplib_mr, umem,
umem_pgs, page_size,
_is_alloc_mr_unified(rdev->dev_attr->dev_cap_flags));
if (rc) {
ibdev_err(&rdev->ibdev, "Failed to register user MR - rc = %d\n", rc);
rc = -EIO;
goto free_mrw;
}
mr->ib_mr.lkey = mr->qplib_mr.lkey;
mr->ib_mr.rkey = mr->qplib_mr.lkey;
active_mrs = atomic_inc_return(&rdev->stats.res.mr_count);
if (active_mrs > rdev->stats.res.mr_watermark)
rdev->stats.res.mr_watermark = active_mrs;
return &mr->ib_mr;
free_mrw:
bnxt_qplib_free_mrw(&rdev->qplib_res, &mr->qplib_mr);
free_mr:
kfree(mr);
return ERR_PTR(rc);
}
struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *ib_pd, u64 start, u64 length,
u64 virt_addr, int mr_access_flags,
struct ib_dmah *dmah,
struct ib_udata *udata)
{
struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
struct bnxt_re_dev *rdev = pd->rdev;
struct ib_umem *umem;
struct ib_mr *ib_mr;
int ret;
ret = ib_is_udata_in_empty(udata);
if (ret)
return ERR_PTR(ret);
if (dmah)
return ERR_PTR(-EOPNOTSUPP);
umem = ib_umem_get_va(&rdev->ibdev, start, length, mr_access_flags);
if (IS_ERR(umem))
return ERR_CAST(umem);
ib_mr = __bnxt_re_user_reg_mr(ib_pd, length, virt_addr, mr_access_flags, umem);
if (IS_ERR(ib_mr))
ib_umem_release(umem);
return ib_mr;
}
struct ib_mr *bnxt_re_reg_user_mr_dmabuf(struct ib_pd *ib_pd, u64 start,
u64 length, u64 virt_addr, int fd,
int mr_access_flags,
struct ib_dmah *dmah,
struct uverbs_attr_bundle *attrs)
{
struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
struct bnxt_re_dev *rdev = pd->rdev;
struct ib_umem_dmabuf *umem_dmabuf;
struct ib_umem *umem;
struct ib_mr *ib_mr;
if (dmah)
return ERR_PTR(-EOPNOTSUPP);
umem_dmabuf = ib_umem_dmabuf_get_pinned(&rdev->ibdev, start, length,
fd, mr_access_flags);
if (IS_ERR(umem_dmabuf))
return ERR_CAST(umem_dmabuf);
umem = &umem_dmabuf->umem;
ib_mr = __bnxt_re_user_reg_mr(ib_pd, length, virt_addr, mr_access_flags, umem);
if (IS_ERR(ib_mr))
ib_umem_release(umem);
return ib_mr;
}
int bnxt_re_alloc_ucontext(struct ib_ucontext *ctx, struct ib_udata *udata)
{
struct ib_device *ibdev = ctx->device;
struct bnxt_re_ucontext *uctx =
container_of(ctx, struct bnxt_re_ucontext, ib_uctx);
struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibdev, ibdev);
struct bnxt_qplib_dev_attr *dev_attr = rdev->dev_attr;
struct bnxt_re_user_mmap_entry *entry;
struct bnxt_re_uctx_resp resp = {};
struct bnxt_re_uctx_req ureq = {};
u32 chip_met_rev_num = 0;
int rc;
ibdev_dbg(ibdev, "ABI version requested %u", ibdev->ops.uverbs_abi_ver);
if (ibdev->ops.uverbs_abi_ver != BNXT_RE_ABI_VERSION) {
ibdev_dbg(ibdev, " is different from the device %d ",
BNXT_RE_ABI_VERSION);
return -EPERM;
}
uctx->rdev = rdev;
uctx->shpg = (void *)get_zeroed_page(GFP_KERNEL);
if (!uctx->shpg) {
rc = -ENOMEM;
goto fail;
}
spin_lock_init(&uctx->sh_lock);
mutex_init(&uctx->wcdpi_lock);
resp.comp_mask = BNXT_RE_UCNTX_CMASK_HAVE_CCTX;
chip_met_rev_num = rdev->chip_ctx->chip_num;
chip_met_rev_num |= ((u32)rdev->chip_ctx->chip_rev & 0xFF) <<
BNXT_RE_CHIP_ID0_CHIP_REV_SFT;
chip_met_rev_num |= ((u32)rdev->chip_ctx->chip_metal & 0xFF) <<
BNXT_RE_CHIP_ID0_CHIP_MET_SFT;
resp.chip_id0 = chip_met_rev_num;
resp.dev_id = rdev->en_dev->pdev->devfn;
resp.max_qp = rdev->qplib_ctx.qpc_count;
resp.pg_size = PAGE_SIZE;
resp.cqe_sz = sizeof(struct cq_base);
resp.max_cqd = dev_attr->max_cq_wqes;
if (rdev->chip_ctx->modes.db_push)
resp.comp_mask |= BNXT_RE_UCNTX_CMASK_WC_DPI_ENABLED;
entry = bnxt_re_mmap_entry_insert(uctx, 0, BNXT_RE_MMAP_SH_PAGE, NULL);
if (!entry) {
rc = -ENOMEM;
goto cfail;
}
uctx->shpage_mmap = &entry->rdma_entry;
if (rdev->pacing.dbr_pacing)
resp.comp_mask |= BNXT_RE_UCNTX_CMASK_DBR_PACING_ENABLED;
if (_is_host_msn_table(rdev->qplib_res.dattr->dev_cap_flags2))
resp.comp_mask |= BNXT_RE_UCNTX_CMASK_MSN_TABLE_ENABLED;
if (_is_modify_qp_rate_limit_supported(dev_attr->dev_cap_flags2))
resp.comp_mask |= BNXT_RE_UCNTX_CMASK_QP_RATE_LIMIT_ENABLED;
if (udata->inlen) {
rc = ib_copy_validate_udata_in_cm(
udata, ureq, comp_mask,
BNXT_RE_COMP_MASK_REQ_UCNTX_POW2_SUPPORT |
BNXT_RE_COMP_MASK_REQ_UCNTX_VAR_WQE_SUPPORT);
if (rc)
goto cfail;
if (ureq.comp_mask & BNXT_RE_COMP_MASK_REQ_UCNTX_POW2_SUPPORT) {
resp.comp_mask |= BNXT_RE_UCNTX_CMASK_POW2_DISABLED;
uctx->cmask |= BNXT_RE_UCNTX_CAP_POW2_DISABLED;
}
if (ureq.comp_mask & BNXT_RE_COMP_MASK_REQ_UCNTX_VAR_WQE_SUPPORT) {
resp.comp_mask |= BNXT_RE_UCNTX_CMASK_HAVE_MODE;
resp.mode = rdev->chip_ctx->modes.wqe_mode;
if (resp.mode == BNXT_QPLIB_WQE_MODE_VARIABLE)
uctx->cmask |= BNXT_RE_UCNTX_CAP_VAR_WQE_ENABLED;
}
}
rc = ib_respond_udata(udata, resp);
if (rc)
goto cfail;
return 0;
cfail:
free_page((unsigned long)uctx->shpg);
uctx->shpg = NULL;
fail:
return rc;
}
void bnxt_re_dealloc_ucontext(struct ib_ucontext *ib_uctx)
{
struct bnxt_re_ucontext *uctx = container_of(ib_uctx,
struct bnxt_re_ucontext,
ib_uctx);
struct bnxt_re_dev *rdev = uctx->rdev;
rdma_user_mmap_entry_remove(uctx->shpage_mmap);
uctx->shpage_mmap = NULL;
if (uctx->shpg)
free_page((unsigned long)uctx->shpg);
if (uctx->dpi.dbr) {
bnxt_qplib_dealloc_dpi(&rdev->qplib_res, &uctx->dpi);
uctx->dpi.dbr = NULL;
}
}
static int bnxt_re_setup_vnic(struct bnxt_re_dev *rdev, struct bnxt_re_qp *qp)
{
int rc;
rc = bnxt_re_hwrm_alloc_vnic(rdev);
if (rc)
return rc;
rc = bnxt_re_hwrm_cfg_vnic(rdev, qp->qplib_qp.id);
if (rc)
goto out_free_vnic;
return 0;
out_free_vnic:
bnxt_re_hwrm_free_vnic(rdev);
return rc;
}
struct ib_flow *bnxt_re_create_flow(struct ib_qp *ib_qp,
struct ib_flow_attr *attr,
struct ib_udata *udata)
{
struct bnxt_re_qp *qp = container_of(ib_qp, struct bnxt_re_qp, ib_qp);
struct bnxt_re_dev *rdev = qp->rdev;
struct bnxt_re_flow *flow;
int rc;
rc = ib_is_udata_in_empty(udata);
if (rc)
return ERR_PTR(rc);
if (attr->type != IB_FLOW_ATTR_SNIFFER ||
!rdev->rcfw.roce_mirror)
return ERR_PTR(-EOPNOTSUPP);
mutex_lock(&rdev->qp_lock);
if (rdev->sniffer_flow_created) {
ibdev_err(&rdev->ibdev, "RoCE Mirroring is already Configured\n");
mutex_unlock(&rdev->qp_lock);
return ERR_PTR(-EBUSY);
}
flow = kzalloc_obj(*flow);
if (!flow) {
mutex_unlock(&rdev->qp_lock);
return ERR_PTR(-ENOMEM);
}
flow->rdev = rdev;
rc = bnxt_re_setup_vnic(rdev, qp);
if (rc)
goto out_free_flow;
rc = bnxt_qplib_create_flow(&rdev->qplib_res);
if (rc)
goto out_free_vnic;
rdev->sniffer_flow_created = 1;
mutex_unlock(&rdev->qp_lock);
return &flow->ib_flow;
out_free_vnic:
bnxt_re_hwrm_free_vnic(rdev);
out_free_flow:
mutex_unlock(&rdev->qp_lock);
kfree(flow);
return ERR_PTR(rc);
}
int bnxt_re_destroy_flow(struct ib_flow *flow_id)
{
struct bnxt_re_flow *flow =
container_of(flow_id, struct bnxt_re_flow, ib_flow);
struct bnxt_re_dev *rdev = flow->rdev;
int rc;
mutex_lock(&rdev->qp_lock);
rc = bnxt_qplib_destroy_flow(&rdev->qplib_res);
if (rc)
ibdev_dbg(&rdev->ibdev, "failed to destroy_flow rc = %d\n", rc);
rdev->sniffer_flow_created = 0;
bnxt_re_hwrm_free_vnic(rdev);
mutex_unlock(&rdev->qp_lock);
kfree(flow);
return rc;
}
int bnxt_re_mmap(struct ib_ucontext *ib_uctx, struct vm_area_struct *vma)
{
struct bnxt_re_ucontext *uctx = container_of(ib_uctx,
struct bnxt_re_ucontext,
ib_uctx);
struct bnxt_re_user_mmap_entry *bnxt_entry;
struct rdma_user_mmap_entry *rdma_entry;
int ret = 0;
u64 pfn;
rdma_entry = rdma_user_mmap_entry_get(&uctx->ib_uctx, vma);
if (!rdma_entry)
return -EINVAL;
bnxt_entry = container_of(rdma_entry, struct bnxt_re_user_mmap_entry,
rdma_entry);
switch (bnxt_entry->mmap_flag) {
case BNXT_RE_MMAP_WC_DB:
pfn = bnxt_entry->mem_offset >> PAGE_SHIFT;
ret = rdma_user_mmap_io(ib_uctx, vma, pfn, PAGE_SIZE,
pgprot_writecombine(vma->vm_page_prot),
rdma_entry);
break;
case BNXT_RE_MMAP_UC_DB:
pfn = bnxt_entry->mem_offset >> PAGE_SHIFT;
ret = rdma_user_mmap_io(ib_uctx, vma, pfn, PAGE_SIZE,
pgprot_noncached(vma->vm_page_prot),
rdma_entry);
break;
case BNXT_RE_MMAP_SH_PAGE:
ret = vm_insert_page(vma, vma->vm_start, virt_to_page(uctx->shpg));
break;
case BNXT_RE_MMAP_DBR_BAR:
pfn = bnxt_entry->mem_offset >> PAGE_SHIFT;
ret = rdma_user_mmap_io(ib_uctx, vma, pfn, PAGE_SIZE,
pgprot_noncached(vma->vm_page_prot),
rdma_entry);
break;
case BNXT_RE_MMAP_DBR_PAGE:
case BNXT_RE_MMAP_TOGGLE_PAGE:
if (vma->vm_flags & VM_WRITE)
ret = -EFAULT;
else
ret = vm_insert_page(vma, vma->vm_start,
virt_to_page((void *)bnxt_entry->mem_offset));
break;
default:
ret = -EINVAL;
break;
}
rdma_user_mmap_entry_put(rdma_entry);
return ret;
}
void bnxt_re_mmap_free(struct rdma_user_mmap_entry *rdma_entry)
{
struct bnxt_re_user_mmap_entry *bnxt_entry;
bnxt_entry = container_of(rdma_entry, struct bnxt_re_user_mmap_entry,
rdma_entry);
if (bnxt_entry->dpi_valid)
bnxt_qplib_free_uc_dpi(&bnxt_entry->uctx->rdev->qplib_res,
&bnxt_entry->dpi);
kfree(bnxt_entry);
}
int bnxt_re_process_mad(struct ib_device *ibdev, int mad_flags,
u32 port_num, const struct ib_wc *in_wc,
const struct ib_grh *in_grh,
const struct ib_mad *in_mad, struct ib_mad *out_mad,
size_t *out_mad_size, u16 *out_mad_pkey_index)
{
struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibdev, ibdev);
struct ib_class_port_info cpi = {};
int ret = IB_MAD_RESULT_SUCCESS;
int rc = 0;
if (in_mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_PERF_MGMT)
return ret;
switch (in_mad->mad_hdr.attr_id) {
case IB_PMA_CLASS_PORT_INFO:
cpi.capability_mask = IB_PMA_CLASS_CAP_EXT_WIDTH;
memcpy((out_mad->data + 40), &cpi, sizeof(cpi));
break;
case IB_PMA_PORT_COUNTERS_EXT:
rc = bnxt_re_assign_pma_port_ext_counters(rdev, out_mad);
break;
case IB_PMA_PORT_COUNTERS:
rc = bnxt_re_assign_pma_port_counters(rdev, out_mad);
break;
default:
rc = -EINVAL;
break;
}
if (rc)
return IB_MAD_RESULT_FAILURE;
ret |= IB_MAD_RESULT_REPLY;
return ret;
}
