#include <linux/kernel.h>
#include <linux/mlx5/driver.h>
#include "mlx5_ib.h"
#include "srq.h"
#include "qp.h"
static int get_pas_size(struct mlx5_srq_attr *in)
{
u32 log_page_size = in->log_page_size + 12;
u32 log_srq_size = in->log_size;
u32 log_rq_stride = in->wqe_shift;
u32 page_offset = in->page_offset;
u32 po_quanta = 1 << (log_page_size - 6);
u32 rq_sz = 1 << (log_srq_size + 4 + log_rq_stride);
u32 page_size = 1 << log_page_size;
u32 rq_sz_po = rq_sz + (page_offset * po_quanta);
u32 rq_num_pas = DIV_ROUND_UP(rq_sz_po, page_size);
return rq_num_pas * sizeof(u64);
}
static void set_wq(void *wq, struct mlx5_srq_attr *in)
{
MLX5_SET(wq, wq, wq_signature, !!(in->flags
& MLX5_SRQ_FLAG_WQ_SIG));
MLX5_SET(wq, wq, log_wq_pg_sz, in->log_page_size);
MLX5_SET(wq, wq, log_wq_stride, in->wqe_shift + 4);
MLX5_SET(wq, wq, log_wq_sz, in->log_size);
MLX5_SET(wq, wq, page_offset, in->page_offset);
MLX5_SET(wq, wq, lwm, in->lwm);
MLX5_SET(wq, wq, pd, in->pd);
MLX5_SET64(wq, wq, dbr_addr, in->db_record);
}
static void set_srqc(void *srqc, struct mlx5_srq_attr *in)
{
MLX5_SET(srqc, srqc, wq_signature, !!(in->flags
& MLX5_SRQ_FLAG_WQ_SIG));
MLX5_SET(srqc, srqc, log_page_size, in->log_page_size);
MLX5_SET(srqc, srqc, log_rq_stride, in->wqe_shift);
MLX5_SET(srqc, srqc, log_srq_size, in->log_size);
MLX5_SET(srqc, srqc, page_offset, in->page_offset);
MLX5_SET(srqc, srqc, lwm, in->lwm);
MLX5_SET(srqc, srqc, pd, in->pd);
MLX5_SET64(srqc, srqc, dbr_addr, in->db_record);
MLX5_SET(srqc, srqc, xrcd, in->xrcd);
MLX5_SET(srqc, srqc, cqn, in->cqn);
}
static void get_wq(void *wq, struct mlx5_srq_attr *in)
{
if (MLX5_GET(wq, wq, wq_signature))
in->flags &= MLX5_SRQ_FLAG_WQ_SIG;
in->log_page_size = MLX5_GET(wq, wq, log_wq_pg_sz);
in->wqe_shift = MLX5_GET(wq, wq, log_wq_stride) - 4;
in->log_size = MLX5_GET(wq, wq, log_wq_sz);
in->page_offset = MLX5_GET(wq, wq, page_offset);
in->lwm = MLX5_GET(wq, wq, lwm);
in->pd = MLX5_GET(wq, wq, pd);
in->db_record = MLX5_GET64(wq, wq, dbr_addr);
}
static void get_srqc(void *srqc, struct mlx5_srq_attr *in)
{
if (MLX5_GET(srqc, srqc, wq_signature))
in->flags &= MLX5_SRQ_FLAG_WQ_SIG;
in->log_page_size = MLX5_GET(srqc, srqc, log_page_size);
in->wqe_shift = MLX5_GET(srqc, srqc, log_rq_stride);
in->log_size = MLX5_GET(srqc, srqc, log_srq_size);
in->page_offset = MLX5_GET(srqc, srqc, page_offset);
in->lwm = MLX5_GET(srqc, srqc, lwm);
in->pd = MLX5_GET(srqc, srqc, pd);
in->db_record = MLX5_GET64(srqc, srqc, dbr_addr);
}
struct mlx5_core_srq *mlx5_cmd_get_srq(struct mlx5_ib_dev *dev, u32 srqn)
{
struct mlx5_srq_table *table = &dev->srq_table;
struct mlx5_core_srq *srq;
xa_lock_irq(&table->array);
srq = xa_load(&table->array, srqn);
if (srq)
refcount_inc(&srq->common.refcount);
xa_unlock_irq(&table->array);
return srq;
}
static int __set_srq_page_size(struct mlx5_srq_attr *in,
unsigned long page_size)
{
if (!page_size)
return -EINVAL;
in->log_page_size = order_base_2(page_size) - MLX5_ADAPTER_PAGE_SHIFT;
if (WARN_ON(get_pas_size(in) !=
ib_umem_num_dma_blocks(in->umem, page_size) * sizeof(u64)))
return -EINVAL;
return 0;
}
#define set_srq_page_size(in, typ, log_pgsz_fld) \
__set_srq_page_size(in, mlx5_umem_find_best_quantized_pgoff( \
(in)->umem, typ, log_pgsz_fld, \
MLX5_ADAPTER_PAGE_SHIFT, page_offset, \
64, &(in)->page_offset))
static int create_srq_cmd(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
struct mlx5_srq_attr *in)
{
u32 create_out[MLX5_ST_SZ_DW(create_srq_out)] = {0};
void *create_in;
void *srqc;
void *pas;
int pas_size;
int inlen;
int err;
if (in->umem) {
err = set_srq_page_size(in, srqc, log_page_size);
if (err)
return err;
}
pas_size = get_pas_size(in);
inlen = MLX5_ST_SZ_BYTES(create_srq_in) + pas_size;
create_in = kvzalloc(inlen, GFP_KERNEL);
if (!create_in)
return -ENOMEM;
MLX5_SET(create_srq_in, create_in, uid, in->uid);
srqc = MLX5_ADDR_OF(create_srq_in, create_in, srq_context_entry);
pas = MLX5_ADDR_OF(create_srq_in, create_in, pas);
set_srqc(srqc, in);
if (in->umem)
mlx5_ib_populate_pas(
in->umem,
1UL << (in->log_page_size + MLX5_ADAPTER_PAGE_SHIFT),
pas, 0);
else
memcpy(pas, in->pas, pas_size);
MLX5_SET(create_srq_in, create_in, opcode,
MLX5_CMD_OP_CREATE_SRQ);
err = mlx5_cmd_exec(dev->mdev, create_in, inlen, create_out,
sizeof(create_out));
kvfree(create_in);
if (!err) {
srq->srqn = MLX5_GET(create_srq_out, create_out, srqn);
srq->uid = in->uid;
}
return err;
}
static int destroy_srq_cmd(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq)
{
u32 in[MLX5_ST_SZ_DW(destroy_srq_in)] = {};
MLX5_SET(destroy_srq_in, in, opcode, MLX5_CMD_OP_DESTROY_SRQ);
MLX5_SET(destroy_srq_in, in, srqn, srq->srqn);
MLX5_SET(destroy_srq_in, in, uid, srq->uid);
return mlx5_cmd_exec_in(dev->mdev, destroy_srq, in);
}
static int arm_srq_cmd(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
u16 lwm, int is_srq)
{
u32 in[MLX5_ST_SZ_DW(arm_rq_in)] = {};
MLX5_SET(arm_rq_in, in, opcode, MLX5_CMD_OP_ARM_RQ);
MLX5_SET(arm_rq_in, in, op_mod, MLX5_ARM_RQ_IN_OP_MOD_SRQ);
MLX5_SET(arm_rq_in, in, srq_number, srq->srqn);
MLX5_SET(arm_rq_in, in, lwm, lwm);
MLX5_SET(arm_rq_in, in, uid, srq->uid);
return mlx5_cmd_exec_in(dev->mdev, arm_rq, in);
}
static int query_srq_cmd(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
struct mlx5_srq_attr *out)
{
u32 in[MLX5_ST_SZ_DW(query_srq_in)] = {};
u32 *srq_out;
void *srqc;
int err;
srq_out = kvzalloc(MLX5_ST_SZ_BYTES(query_srq_out), GFP_KERNEL);
if (!srq_out)
return -ENOMEM;
MLX5_SET(query_srq_in, in, opcode, MLX5_CMD_OP_QUERY_SRQ);
MLX5_SET(query_srq_in, in, srqn, srq->srqn);
err = mlx5_cmd_exec_inout(dev->mdev, query_srq, in, srq_out);
if (err)
goto out;
srqc = MLX5_ADDR_OF(query_srq_out, srq_out, srq_context_entry);
get_srqc(srqc, out);
if (MLX5_GET(srqc, srqc, state) != MLX5_SRQC_STATE_GOOD)
out->flags |= MLX5_SRQ_FLAG_ERR;
out:
kvfree(srq_out);
return err;
}
static int create_xrc_srq_cmd(struct mlx5_ib_dev *dev,
struct mlx5_core_srq *srq,
struct mlx5_srq_attr *in)
{
u32 create_out[MLX5_ST_SZ_DW(create_xrc_srq_out)];
void *create_in;
void *xrc_srqc;
void *pas;
int pas_size;
int inlen;
int err;
if (in->umem) {
err = set_srq_page_size(in, xrc_srqc, log_page_size);
if (err)
return err;
}
pas_size = get_pas_size(in);
inlen = MLX5_ST_SZ_BYTES(create_xrc_srq_in) + pas_size;
create_in = kvzalloc(inlen, GFP_KERNEL);
if (!create_in)
return -ENOMEM;
MLX5_SET(create_xrc_srq_in, create_in, uid, in->uid);
xrc_srqc = MLX5_ADDR_OF(create_xrc_srq_in, create_in,
xrc_srq_context_entry);
pas = MLX5_ADDR_OF(create_xrc_srq_in, create_in, pas);
set_srqc(xrc_srqc, in);
MLX5_SET(xrc_srqc, xrc_srqc, user_index, in->user_index);
if (in->umem)
mlx5_ib_populate_pas(
in->umem,
1UL << (in->log_page_size + MLX5_ADAPTER_PAGE_SHIFT),
pas, 0);
else
memcpy(pas, in->pas, pas_size);
MLX5_SET(create_xrc_srq_in, create_in, opcode,
MLX5_CMD_OP_CREATE_XRC_SRQ);
memset(create_out, 0, sizeof(create_out));
err = mlx5_cmd_exec(dev->mdev, create_in, inlen, create_out,
sizeof(create_out));
if (err)
goto out;
srq->srqn = MLX5_GET(create_xrc_srq_out, create_out, xrc_srqn);
srq->uid = in->uid;
out:
kvfree(create_in);
return err;
}
static int destroy_xrc_srq_cmd(struct mlx5_ib_dev *dev,
struct mlx5_core_srq *srq)
{
u32 in[MLX5_ST_SZ_DW(destroy_xrc_srq_in)] = {};
MLX5_SET(destroy_xrc_srq_in, in, opcode, MLX5_CMD_OP_DESTROY_XRC_SRQ);
MLX5_SET(destroy_xrc_srq_in, in, xrc_srqn, srq->srqn);
MLX5_SET(destroy_xrc_srq_in, in, uid, srq->uid);
return mlx5_cmd_exec_in(dev->mdev, destroy_xrc_srq, in);
}
static int arm_xrc_srq_cmd(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
u16 lwm)
{
u32 in[MLX5_ST_SZ_DW(arm_xrc_srq_in)] = {};
MLX5_SET(arm_xrc_srq_in, in, opcode, MLX5_CMD_OP_ARM_XRC_SRQ);
MLX5_SET(arm_xrc_srq_in, in, op_mod,
MLX5_ARM_XRC_SRQ_IN_OP_MOD_XRC_SRQ);
MLX5_SET(arm_xrc_srq_in, in, xrc_srqn, srq->srqn);
MLX5_SET(arm_xrc_srq_in, in, lwm, lwm);
MLX5_SET(arm_xrc_srq_in, in, uid, srq->uid);
return mlx5_cmd_exec_in(dev->mdev, arm_xrc_srq, in);
}
static int query_xrc_srq_cmd(struct mlx5_ib_dev *dev,
struct mlx5_core_srq *srq,
struct mlx5_srq_attr *out)
{
u32 in[MLX5_ST_SZ_DW(query_xrc_srq_in)] = {};
u32 *xrcsrq_out;
void *xrc_srqc;
int err;
xrcsrq_out = kvzalloc(MLX5_ST_SZ_BYTES(query_xrc_srq_out), GFP_KERNEL);
if (!xrcsrq_out)
return -ENOMEM;
MLX5_SET(query_xrc_srq_in, in, opcode, MLX5_CMD_OP_QUERY_XRC_SRQ);
MLX5_SET(query_xrc_srq_in, in, xrc_srqn, srq->srqn);
err = mlx5_cmd_exec_inout(dev->mdev, query_xrc_srq, in, xrcsrq_out);
if (err)
goto out;
xrc_srqc = MLX5_ADDR_OF(query_xrc_srq_out, xrcsrq_out,
xrc_srq_context_entry);
get_srqc(xrc_srqc, out);
if (MLX5_GET(xrc_srqc, xrc_srqc, state) != MLX5_XRC_SRQC_STATE_GOOD)
out->flags |= MLX5_SRQ_FLAG_ERR;
out:
kvfree(xrcsrq_out);
return err;
}
static int create_rmp_cmd(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
struct mlx5_srq_attr *in)
{
void *create_out = NULL;
void *create_in = NULL;
void *rmpc;
void *wq;
void *pas;
int pas_size;
int outlen;
int inlen;
int err;
if (in->umem) {
err = set_srq_page_size(in, wq, log_wq_pg_sz);
if (err)
return err;
}
pas_size = get_pas_size(in);
inlen = MLX5_ST_SZ_BYTES(create_rmp_in) + pas_size;
outlen = MLX5_ST_SZ_BYTES(create_rmp_out);
create_in = kvzalloc(inlen, GFP_KERNEL);
create_out = kvzalloc(outlen, GFP_KERNEL);
if (!create_in || !create_out) {
err = -ENOMEM;
goto out;
}
rmpc = MLX5_ADDR_OF(create_rmp_in, create_in, ctx);
wq = MLX5_ADDR_OF(rmpc, rmpc, wq);
MLX5_SET(rmpc, rmpc, state, MLX5_RMPC_STATE_RDY);
MLX5_SET(create_rmp_in, create_in, uid, in->uid);
pas = MLX5_ADDR_OF(rmpc, rmpc, wq.pas);
set_wq(wq, in);
if (in->umem)
mlx5_ib_populate_pas(
in->umem,
1UL << (in->log_page_size + MLX5_ADAPTER_PAGE_SHIFT),
pas, 0);
else
memcpy(pas, in->pas, pas_size);
MLX5_SET(create_rmp_in, create_in, opcode, MLX5_CMD_OP_CREATE_RMP);
err = mlx5_cmd_exec(dev->mdev, create_in, inlen, create_out, outlen);
if (!err) {
srq->srqn = MLX5_GET(create_rmp_out, create_out, rmpn);
srq->uid = in->uid;
}
out:
kvfree(create_in);
kvfree(create_out);
return err;
}
static int destroy_rmp_cmd(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq)
{
u32 in[MLX5_ST_SZ_DW(destroy_rmp_in)] = {};
MLX5_SET(destroy_rmp_in, in, opcode, MLX5_CMD_OP_DESTROY_RMP);
MLX5_SET(destroy_rmp_in, in, rmpn, srq->srqn);
MLX5_SET(destroy_rmp_in, in, uid, srq->uid);
return mlx5_cmd_exec_in(dev->mdev, destroy_rmp, in);
}
static int arm_rmp_cmd(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
u16 lwm)
{
void *out = NULL;
void *in = NULL;
void *rmpc;
void *wq;
void *bitmask;
int outlen;
int inlen;
int err;
inlen = MLX5_ST_SZ_BYTES(modify_rmp_in);
outlen = MLX5_ST_SZ_BYTES(modify_rmp_out);
in = kvzalloc(inlen, GFP_KERNEL);
out = kvzalloc(outlen, GFP_KERNEL);
if (!in || !out) {
err = -ENOMEM;
goto out;
}
rmpc = MLX5_ADDR_OF(modify_rmp_in, in, ctx);
bitmask = MLX5_ADDR_OF(modify_rmp_in, in, bitmask);
wq = MLX5_ADDR_OF(rmpc, rmpc, wq);
MLX5_SET(modify_rmp_in, in, rmp_state, MLX5_RMPC_STATE_RDY);
MLX5_SET(modify_rmp_in, in, rmpn, srq->srqn);
MLX5_SET(modify_rmp_in, in, uid, srq->uid);
MLX5_SET(wq, wq, lwm, lwm);
MLX5_SET(rmp_bitmask, bitmask, lwm, 1);
MLX5_SET(rmpc, rmpc, state, MLX5_RMPC_STATE_RDY);
MLX5_SET(modify_rmp_in, in, opcode, MLX5_CMD_OP_MODIFY_RMP);
err = mlx5_cmd_exec_inout(dev->mdev, modify_rmp, in, out);
out:
kvfree(in);
kvfree(out);
return err;
}
static int query_rmp_cmd(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
struct mlx5_srq_attr *out)
{
u32 *rmp_out = NULL;
u32 *rmp_in = NULL;
void *rmpc;
int outlen;
int inlen;
int err;
outlen = MLX5_ST_SZ_BYTES(query_rmp_out);
inlen = MLX5_ST_SZ_BYTES(query_rmp_in);
rmp_out = kvzalloc(outlen, GFP_KERNEL);
rmp_in = kvzalloc(inlen, GFP_KERNEL);
if (!rmp_out || !rmp_in) {
err = -ENOMEM;
goto out;
}
MLX5_SET(query_rmp_in, rmp_in, opcode, MLX5_CMD_OP_QUERY_RMP);
MLX5_SET(query_rmp_in, rmp_in, rmpn, srq->srqn);
err = mlx5_cmd_exec_inout(dev->mdev, query_rmp, rmp_in, rmp_out);
if (err)
goto out;
rmpc = MLX5_ADDR_OF(query_rmp_out, rmp_out, rmp_context);
get_wq(MLX5_ADDR_OF(rmpc, rmpc, wq), out);
if (MLX5_GET(rmpc, rmpc, state) != MLX5_RMPC_STATE_RDY)
out->flags |= MLX5_SRQ_FLAG_ERR;
out:
kvfree(rmp_out);
kvfree(rmp_in);
return err;
}
static int create_xrq_cmd(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
struct mlx5_srq_attr *in)
{
u32 create_out[MLX5_ST_SZ_DW(create_xrq_out)] = {0};
void *create_in;
void *xrqc;
void *wq;
void *pas;
int pas_size;
int inlen;
int err;
if (in->umem) {
err = set_srq_page_size(in, wq, log_wq_pg_sz);
if (err)
return err;
}
pas_size = get_pas_size(in);
inlen = MLX5_ST_SZ_BYTES(create_xrq_in) + pas_size;
create_in = kvzalloc(inlen, GFP_KERNEL);
if (!create_in)
return -ENOMEM;
xrqc = MLX5_ADDR_OF(create_xrq_in, create_in, xrq_context);
wq = MLX5_ADDR_OF(xrqc, xrqc, wq);
pas = MLX5_ADDR_OF(xrqc, xrqc, wq.pas);
set_wq(wq, in);
if (in->umem)
mlx5_ib_populate_pas(
in->umem,
1UL << (in->log_page_size + MLX5_ADAPTER_PAGE_SHIFT),
pas, 0);
else
memcpy(pas, in->pas, pas_size);
if (in->type == IB_SRQT_TM) {
MLX5_SET(xrqc, xrqc, topology, MLX5_XRQC_TOPOLOGY_TAG_MATCHING);
if (in->flags & MLX5_SRQ_FLAG_RNDV)
MLX5_SET(xrqc, xrqc, offload, MLX5_XRQC_OFFLOAD_RNDV);
MLX5_SET(xrqc, xrqc,
tag_matching_topology_context.log_matching_list_sz,
in->tm_log_list_size);
}
MLX5_SET(xrqc, xrqc, user_index, in->user_index);
MLX5_SET(xrqc, xrqc, cqn, in->cqn);
MLX5_SET(create_xrq_in, create_in, opcode, MLX5_CMD_OP_CREATE_XRQ);
MLX5_SET(create_xrq_in, create_in, uid, in->uid);
err = mlx5_cmd_exec(dev->mdev, create_in, inlen, create_out,
sizeof(create_out));
kvfree(create_in);
if (!err) {
srq->srqn = MLX5_GET(create_xrq_out, create_out, xrqn);
srq->uid = in->uid;
}
return err;
}
static int destroy_xrq_cmd(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq)
{
u32 in[MLX5_ST_SZ_DW(destroy_xrq_in)] = {};
MLX5_SET(destroy_xrq_in, in, opcode, MLX5_CMD_OP_DESTROY_XRQ);
MLX5_SET(destroy_xrq_in, in, xrqn, srq->srqn);
MLX5_SET(destroy_xrq_in, in, uid, srq->uid);
return mlx5_cmd_exec_in(dev->mdev, destroy_xrq, in);
}
static int arm_xrq_cmd(struct mlx5_ib_dev *dev,
struct mlx5_core_srq *srq,
u16 lwm)
{
u32 in[MLX5_ST_SZ_DW(arm_rq_in)] = {};
MLX5_SET(arm_rq_in, in, opcode, MLX5_CMD_OP_ARM_RQ);
MLX5_SET(arm_rq_in, in, op_mod, MLX5_ARM_RQ_IN_OP_MOD_XRQ);
MLX5_SET(arm_rq_in, in, srq_number, srq->srqn);
MLX5_SET(arm_rq_in, in, lwm, lwm);
MLX5_SET(arm_rq_in, in, uid, srq->uid);
return mlx5_cmd_exec_in(dev->mdev, arm_rq, in);
}
static int query_xrq_cmd(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
struct mlx5_srq_attr *out)
{
u32 in[MLX5_ST_SZ_DW(query_xrq_in)] = {};
u32 *xrq_out;
int outlen = MLX5_ST_SZ_BYTES(query_xrq_out);
void *xrqc;
int err;
xrq_out = kvzalloc(outlen, GFP_KERNEL);
if (!xrq_out)
return -ENOMEM;
MLX5_SET(query_xrq_in, in, opcode, MLX5_CMD_OP_QUERY_XRQ);
MLX5_SET(query_xrq_in, in, xrqn, srq->srqn);
err = mlx5_cmd_exec_inout(dev->mdev, query_xrq, in, xrq_out);
if (err)
goto out;
xrqc = MLX5_ADDR_OF(query_xrq_out, xrq_out, xrq_context);
get_wq(MLX5_ADDR_OF(xrqc, xrqc, wq), out);
if (MLX5_GET(xrqc, xrqc, state) != MLX5_XRQC_STATE_GOOD)
out->flags |= MLX5_SRQ_FLAG_ERR;
out->tm_next_tag =
MLX5_GET(xrqc, xrqc,
tag_matching_topology_context.append_next_index);
out->tm_hw_phase_cnt =
MLX5_GET(xrqc, xrqc,
tag_matching_topology_context.hw_phase_cnt);
out->tm_sw_phase_cnt =
MLX5_GET(xrqc, xrqc,
tag_matching_topology_context.sw_phase_cnt);
out:
kvfree(xrq_out);
return err;
}
static int create_srq_split(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
struct mlx5_srq_attr *in)
{
if (!dev->mdev->issi)
return create_srq_cmd(dev, srq, in);
switch (srq->common.res) {
case MLX5_RES_XSRQ:
return create_xrc_srq_cmd(dev, srq, in);
case MLX5_RES_XRQ:
return create_xrq_cmd(dev, srq, in);
default:
return create_rmp_cmd(dev, srq, in);
}
}
static int destroy_srq_split(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq)
{
if (!dev->mdev->issi)
return destroy_srq_cmd(dev, srq);
switch (srq->common.res) {
case MLX5_RES_XSRQ:
return destroy_xrc_srq_cmd(dev, srq);
case MLX5_RES_XRQ:
return destroy_xrq_cmd(dev, srq);
default:
return destroy_rmp_cmd(dev, srq);
}
}
int mlx5_cmd_create_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
struct mlx5_srq_attr *in)
{
struct mlx5_srq_table *table = &dev->srq_table;
int err;
switch (in->type) {
case IB_SRQT_XRC:
srq->common.res = MLX5_RES_XSRQ;
break;
case IB_SRQT_TM:
srq->common.res = MLX5_RES_XRQ;
break;
default:
srq->common.res = MLX5_RES_SRQ;
}
err = create_srq_split(dev, srq, in);
if (err)
return err;
refcount_set(&srq->common.refcount, 1);
init_completion(&srq->common.free);
err = xa_err(xa_store_irq(&table->array, srq->srqn, srq, GFP_KERNEL));
if (err)
goto err_destroy_srq_split;
return 0;
err_destroy_srq_split:
destroy_srq_split(dev, srq);
return err;
}
int mlx5_cmd_destroy_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq)
{
struct mlx5_srq_table *table = &dev->srq_table;
struct mlx5_core_srq *tmp;
int err;
tmp = xa_cmpxchg_irq(&table->array, srq->srqn, srq, XA_ZERO_ENTRY, 0);
if (WARN_ON(tmp != srq))
return xa_err(tmp) ?: -EINVAL;
err = destroy_srq_split(dev, srq);
if (err) {
xa_cmpxchg_irq(&table->array, srq->srqn, XA_ZERO_ENTRY, srq, 0);
return err;
}
xa_erase_irq(&table->array, srq->srqn);
mlx5_core_res_put(&srq->common);
wait_for_completion(&srq->common.free);
return 0;
}
int mlx5_cmd_query_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
struct mlx5_srq_attr *out)
{
if (!dev->mdev->issi)
return query_srq_cmd(dev, srq, out);
switch (srq->common.res) {
case MLX5_RES_XSRQ:
return query_xrc_srq_cmd(dev, srq, out);
case MLX5_RES_XRQ:
return query_xrq_cmd(dev, srq, out);
default:
return query_rmp_cmd(dev, srq, out);
}
}
int mlx5_cmd_arm_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
u16 lwm, int is_srq)
{
if (!dev->mdev->issi)
return arm_srq_cmd(dev, srq, lwm, is_srq);
switch (srq->common.res) {
case MLX5_RES_XSRQ:
return arm_xrc_srq_cmd(dev, srq, lwm);
case MLX5_RES_XRQ:
return arm_xrq_cmd(dev, srq, lwm);
default:
return arm_rmp_cmd(dev, srq, lwm);
}
}
static int srq_event_notifier(struct notifier_block *nb,
unsigned long type, void *data)
{
struct mlx5_srq_table *table;
struct mlx5_core_srq *srq;
struct mlx5_eqe *eqe;
u32 srqn;
if (type != MLX5_EVENT_TYPE_SRQ_CATAS_ERROR &&
type != MLX5_EVENT_TYPE_SRQ_RQ_LIMIT)
return NOTIFY_DONE;
table = container_of(nb, struct mlx5_srq_table, nb);
eqe = data;
srqn = be32_to_cpu(eqe->data.qp_srq.qp_srq_n) & 0xffffff;
xa_lock(&table->array);
srq = xa_load(&table->array, srqn);
if (srq)
refcount_inc(&srq->common.refcount);
xa_unlock(&table->array);
if (!srq)
return NOTIFY_OK;
srq->event(srq, eqe->type);
mlx5_core_res_put(&srq->common);
return NOTIFY_OK;
}
int mlx5_init_srq_table(struct mlx5_ib_dev *dev)
{
struct mlx5_srq_table *table = &dev->srq_table;
memset(table, 0, sizeof(*table));
xa_init_flags(&table->array, XA_FLAGS_LOCK_IRQ);
table->nb.notifier_call = srq_event_notifier;
mlx5_notifier_register(dev->mdev, &table->nb);
return 0;
}
void mlx5_cleanup_srq_table(struct mlx5_ib_dev *dev)
{
struct mlx5_srq_table *table = &dev->srq_table;
mlx5_notifier_unregister(dev->mdev, &table->nb);
}
