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v6.2 first rc pull request

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A big data corruption regression due to a change in the scatterlist
 
 - Fix compilation warnings on gcc 13
 
 - Oops when using some mlx5 stats
 
 - Bad enforcement of atomic responder resources in mlx5
 
 - Do not wrongly combine non-contiguous pages in scatterlist
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "Most noticeable is that Yishai found a big data corruption regression
  due to a change in the scatterlist:

   - Do not wrongly combine non-contiguous pages in scatterlist

   - Fix compilation warnings on gcc 13

   - Oops when using some mlx5 stats

   - Bad enforcement of atomic responder resources in mlx5"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  lib/scatterlist: Fix to merge contiguous pages into the last SG properly
  RDMA/mlx5: Fix validation of max_rd_atomic caps for DC
  RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device
  RDMA/srp: Move large values to a new enum for gcc13
This commit is contained in:
Linus Torvalds 2023-01-07 10:06:47 -08:00
commit 4a4dcea083
4 changed files with 44 additions and 21 deletions
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6
drivers/infiniband/hw/mlx5/counters.c
View File

@ -278,7 +278,6 @@ static int do_get_hw_stats(struct ib_device *ibdev,
const struct mlx5_ib_counters *cnts = get_counters(dev, port_num - 1);
struct mlx5_core_dev *mdev;
int ret, num_counters;
u32 mdev_port_num;
if (!stats)
return -EINVAL;
@ -299,8 +298,9 @@ static int do_get_hw_stats(struct ib_device *ibdev,
}
if (MLX5_CAP_GEN(dev->mdev, cc_query_allowed)) {
mdev = mlx5_ib_get_native_port_mdev(dev, port_num,
&mdev_port_num);
if (!port_num)
port_num = 1;
mdev = mlx5_ib_get_native_port_mdev(dev, port_num, NULL);
if (!mdev) {
/* If port is not affiliated yet, its in down state
* which doesn't have any counters yet, so it would be

49
drivers/infiniband/hw/mlx5/qp.c
View File

@ -4502,6 +4502,40 @@ static bool mlx5_ib_modify_qp_allowed(struct mlx5_ib_dev *dev,
return false;
}
static int validate_rd_atomic(struct mlx5_ib_dev *dev, struct ib_qp_attr *attr,
int attr_mask, enum ib_qp_type qp_type)
{
int log_max_ra_res;
int log_max_ra_req;
if (qp_type == MLX5_IB_QPT_DCI) {
log_max_ra_res = 1 << MLX5_CAP_GEN(dev->mdev,
log_max_ra_res_dc);
log_max_ra_req = 1 << MLX5_CAP_GEN(dev->mdev,
log_max_ra_req_dc);
} else {
log_max_ra_res = 1 << MLX5_CAP_GEN(dev->mdev,
log_max_ra_res_qp);
log_max_ra_req = 1 << MLX5_CAP_GEN(dev->mdev,
log_max_ra_req_qp);
}
if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC &&
attr->max_rd_atomic > log_max_ra_res) {
mlx5_ib_dbg(dev, "invalid max_rd_atomic value %d\n",
attr->max_rd_atomic);
return false;
}
if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC &&
attr->max_dest_rd_atomic > log_max_ra_req) {
mlx5_ib_dbg(dev, "invalid max_dest_rd_atomic value %d\n",
attr->max_dest_rd_atomic);
return false;
}
return true;
}
int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
int attr_mask, struct ib_udata *udata)
{
@ -4589,21 +4623,8 @@ int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
goto out;
}
if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC &&
attr->max_rd_atomic >
(1 << MLX5_CAP_GEN(dev->mdev, log_max_ra_res_qp))) {
mlx5_ib_dbg(dev, "invalid max_rd_atomic value %d\n",
attr->max_rd_atomic);
if (!validate_rd_atomic(dev, attr, attr_mask, qp_type))
goto out;
}
if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC &&
attr->max_dest_rd_atomic >
(1 << MLX5_CAP_GEN(dev->mdev, log_max_ra_req_qp))) {
mlx5_ib_dbg(dev, "invalid max_dest_rd_atomic value %d\n",
attr->max_dest_rd_atomic);
goto out;
}
if (cur_state == new_state && cur_state == IB_QPS_RESET) {
err = 0;

8
drivers/infiniband/ulp/srp/ib_srp.h
View File

@ -62,9 +62,6 @@ enum {
SRP_DEFAULT_CMD_SQ_SIZE = SRP_DEFAULT_QUEUE_SIZE - SRP_RSP_SQ_SIZE -
SRP_TSK_MGMT_SQ_SIZE,
SRP_TAG_NO_REQ = ~0U,
SRP_TAG_TSK_MGMT = 1U << 31,
SRP_MAX_PAGES_PER_MR = 512,
SRP_MAX_ADD_CDB_LEN = 16,
@ -79,6 +76,11 @@ enum {
sizeof(struct srp_imm_buf),
};
enum {
SRP_TAG_NO_REQ = ~0U,
SRP_TAG_TSK_MGMT = BIT(31),
};
enum srp_target_state {
SRP_TARGET_SCANNING,
SRP_TARGET_LIVE,

2
lib/scatterlist.c
View File

@ -476,7 +476,7 @@ int sg_alloc_append_table_from_pages(struct sg_append_table *sgt_append,
/* Merge contiguous pages into the last SG */
prv_len = sgt_append->prv->length;
last_pg = sg_page(sgt_append->prv);
while (n_pages && pages_are_mergeable(last_pg, pages[0])) {
while (n_pages && pages_are_mergeable(pages[0], last_pg)) {
if (sgt_append->prv->length + PAGE_SIZE > max_segment)
break;
sgt_append->prv->length += PAGE_SIZE;