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RDMA v6.15 first rc pull request

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- Hang in bnxt_re due to miscomputing the budget
 
 - Avoid a -Wformat-security message in dev_set_name()
 
 - Avoid an unused definition warning in fs.c with some kconfigs
 
 - Fix error handling in usnic and remove IS_ERR_OR_NULL() usage
 
 - Regression in RXE support foudn by blktests due to missing ODP
   exclusions
 
 - Set the dma_segment_size on HNS so it doesn't corrupt DMA when using very
   large IOs
 
 - Move a INIT_WORK to near when the work is allocated in cm.c to fix a
   racey crash where work in progress was being init'd
 
 - Use __GFP_NOWARN to not dump in kvcalloc() if userspace requests a very
   big MR
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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:

 - Fix hang in bnxt_re due to miscomputing the budget

 - Avoid a -Wformat-security message in dev_set_name()

 - Avoid an unused definition warning in fs.c with some kconfigs

 - Fix error handling in usnic and remove IS_ERR_OR_NULL() usage

 - Regression in RXE support foudn by blktests due to missing ODP
   exclusions

 - Set the dma_segment_size on HNS so it doesn't corrupt DMA when using
   very large IOs

 - Move a INIT_WORK to near when the work is allocated in cm.c to fix a
   racey crash where work in progress was being init'd

 - Use __GFP_NOWARN to not dump in kvcalloc() if userspace requests a
   very big MR

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/bnxt_re: Remove unusable nq variable
  RDMA/core: Silence oversized kvmalloc() warning
  RDMA/cma: Fix workqueue crash in cma_netevent_work_handler
  RDMA/hns: Fix wrong maximum DMA segment size
  RDMA/rxe: Fix null pointer dereference in ODP MR check
  RDMA/mlx5: Fix compilation warning when USER_ACCESS isn't set
  RDMA/usnic: Fix passing zero to PTR_ERR in usnic_ib_pci_probe()
  RDMA/ucaps: Avoid format-security warning
  RDMA/bnxt_re: Fix budget handling of notification queue
This commit is contained in:
Linus Torvalds 2025-04-14 10:24:04 -07:00
commit 834a4a6896
11 changed files with 33 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/infiniband/core/cma.c
View File

@ -72,6 +72,8 @@ static const char * const cma_events[] = {
static void cma_iboe_set_mgid(struct sockaddr *addr, union ib_gid *mgid,
enum ib_gid_type gid_type);
static void cma_netevent_work_handler(struct work_struct *_work);
const char *__attribute_const__ rdma_event_msg(enum rdma_cm_event_type event)
{
size_t index = event;
@ -1047,6 +1049,7 @@ __rdma_create_id(struct net *net, rdma_cm_event_handler event_handler,
get_random_bytes(&id_priv->seq_num, sizeof id_priv->seq_num);
id_priv->id.route.addr.dev_addr.net = get_net(net);
id_priv->seq_num &= 0x00ffffff;
INIT_WORK(&id_priv->id.net_work, cma_netevent_work_handler);
rdma_restrack_new(&id_priv->res, RDMA_RESTRACK_CM_ID);
if (parent)
@ -5241,7 +5244,6 @@ static int cma_netevent_callback(struct notifier_block *self,
if (!memcmp(current_id->id.route.addr.dev_addr.dst_dev_addr,
neigh->ha, ETH_ALEN))
continue;
INIT_WORK(&current_id->id.net_work, cma_netevent_work_handler);
cma_id_get(current_id);
queue_work(cma_wq, &current_id->id.net_work);
}

2
drivers/infiniband/core/ucaps.c
View File

@ -170,7 +170,7 @@ int ib_create_ucap(enum rdma_user_cap type)
ucap->dev.class = &ucaps_class;
ucap->dev.devt = MKDEV(MAJOR(ucaps_base_dev), type);
ucap->dev.release = ucap_dev_release;
ret = dev_set_name(&ucap->dev, ucap_names[type]);
ret = dev_set_name(&ucap->dev, "%s", ucap_names[type]);
if (ret)
goto err_device;

6
drivers/infiniband/core/umem_odp.c
View File

@ -76,12 +76,14 @@ static inline int ib_init_umem_odp(struct ib_umem_odp *umem_odp,
npfns = (end - start) >> PAGE_SHIFT;
umem_odp->pfn_list = kvcalloc(
npfns, sizeof(*umem_odp->pfn_list), GFP_KERNEL);
npfns, sizeof(*umem_odp->pfn_list),
GFP_KERNEL | __GFP_NOWARN);
if (!umem_odp->pfn_list)
return -ENOMEM;
umem_odp->dma_list = kvcalloc(
ndmas, sizeof(*umem_odp->dma_list), GFP_KERNEL);
ndmas, sizeof(*umem_odp->dma_list),
GFP_KERNEL | __GFP_NOWARN);
if (!umem_odp->dma_list) {
ret = -ENOMEM;
goto out_pfn_list;

10
drivers/infiniband/hw/bnxt_re/ib_verbs.c
View File

@ -1774,10 +1774,7 @@ int bnxt_re_destroy_srq(struct ib_srq *ib_srq, struct ib_udata *udata)
ib_srq);
struct bnxt_re_dev *rdev = srq->rdev;
struct bnxt_qplib_srq *qplib_srq = &srq->qplib_srq;
struct bnxt_qplib_nq *nq = NULL;
if (qplib_srq->cq)
nq = qplib_srq->cq->nq;
if (rdev->chip_ctx->modes.toggle_bits & BNXT_QPLIB_SRQ_TOGGLE_BIT) {
free_page((unsigned long)srq->uctx_srq_page);
hash_del(&srq->hash_entry);
@ -1785,8 +1782,6 @@ int bnxt_re_destroy_srq(struct ib_srq *ib_srq, struct ib_udata *udata)
bnxt_qplib_destroy_srq(&rdev->qplib_res, qplib_srq);
ib_umem_release(srq->umem);
atomic_dec(&rdev->stats.res.srq_count);
if (nq)
nq->budget--;
return 0;
}
@ -1827,7 +1822,6 @@ int bnxt_re_create_srq(struct ib_srq *ib_srq,
struct ib_udata *udata)
{
struct bnxt_qplib_dev_attr *dev_attr;
struct bnxt_qplib_nq *nq = NULL;
struct bnxt_re_ucontext *uctx;
struct bnxt_re_dev *rdev;
struct bnxt_re_srq *srq;
@ -1873,7 +1867,6 @@ int bnxt_re_create_srq(struct ib_srq *ib_srq,
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;
nq = &rdev->nqr->nq[0];
if (udata) {
rc = bnxt_re_init_user_srq(rdev, pd, srq, udata);
@ -1908,8 +1901,6 @@ int bnxt_re_create_srq(struct ib_srq *ib_srq,
goto fail;
}
}
if (nq)
nq->budget++;
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;
@ -3079,7 +3070,6 @@ int bnxt_re_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata)
ib_umem_release(cq->umem);
atomic_dec(&rdev->stats.res.cq_count);
nq->budget--;
kfree(cq->cql);
return 0;
}

2
drivers/infiniband/hw/hns/hns_roce_main.c
View File

@ -763,7 +763,7 @@ static int hns_roce_register_device(struct hns_roce_dev *hr_dev)
if (ret)
return ret;
}
dma_set_max_seg_size(dev, UINT_MAX);
dma_set_max_seg_size(dev, SZ_2G);
ret = ib_register_device(ib_dev, "hns_%d", dev);
if (ret) {
dev_err(dev, "ib_register_device failed!\n");

2
drivers/infiniband/hw/mlx5/fs.c
View File

@ -3461,7 +3461,6 @@ DECLARE_UVERBS_NAMED_OBJECT(
&UVERBS_METHOD(MLX5_IB_METHOD_STEERING_ANCHOR_DESTROY));
const struct uapi_definition mlx5_ib_flow_defs[] = {
#if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS)
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(
MLX5_IB_OBJECT_FLOW_MATCHER),
UAPI_DEF_CHAIN_OBJ_TREE(
@ -3472,7 +3471,6 @@ const struct uapi_definition mlx5_ib_flow_defs[] = {
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(
MLX5_IB_OBJECT_STEERING_ANCHOR,
UAPI_DEF_IS_OBJ_SUPPORTED(mlx5_ib_shared_ft_allowed)),
#endif
{},
};

14
drivers/infiniband/hw/usnic/usnic_ib_main.c
View File

@ -397,7 +397,7 @@ static void *usnic_ib_device_add(struct pci_dev *dev)
if (!us_ibdev) {
usnic_err("Device %s context alloc failed\n",
netdev_name(pci_get_drvdata(dev)));
return ERR_PTR(-EFAULT);
return NULL;
}
us_ibdev->ufdev = usnic_fwd_dev_alloc(dev);
@ -517,8 +517,8 @@ static struct usnic_ib_dev *usnic_ib_discover_pf(struct usnic_vnic *vnic)
}
us_ibdev = usnic_ib_device_add(parent_pci);
if (IS_ERR_OR_NULL(us_ibdev)) {
us_ibdev = us_ibdev ? us_ibdev : ERR_PTR(-EFAULT);
if (!us_ibdev) {
us_ibdev = ERR_PTR(-EFAULT);
goto out;
}
@ -586,10 +586,10 @@ static int usnic_ib_pci_probe(struct pci_dev *pdev,
}
pf = usnic_ib_discover_pf(vf->vnic);
if (IS_ERR_OR_NULL(pf)) {
usnic_err("Failed to discover pf of vnic %s with err%ld\n",
pci_name(pdev), PTR_ERR(pf));
err = pf ? PTR_ERR(pf) : -EFAULT;
if (IS_ERR(pf)) {
err = PTR_ERR(pf);
usnic_err("Failed to discover pf of vnic %s with err%d\n",
pci_name(pdev), err);
goto out_clean_vnic;
}

6
drivers/infiniband/sw/rxe/rxe_loc.h
View File

@ -140,6 +140,12 @@ static inline int qp_mtu(struct rxe_qp *qp)
return IB_MTU_4096;
}
static inline bool is_odp_mr(struct rxe_mr *mr)
{
return IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING) && mr->umem &&
mr->umem->is_odp;
}
void free_rd_atomic_resource(struct resp_res *res);
static inline void rxe_advance_resp_resource(struct rxe_qp *qp)

4
drivers/infiniband/sw/rxe/rxe_mr.c
View File

@ -323,7 +323,7 @@ int rxe_mr_copy(struct rxe_mr *mr, u64 iova, void *addr,
return err;
}
if (mr->umem->is_odp)
if (is_odp_mr(mr))
return rxe_odp_mr_copy(mr, iova, addr, length, dir);
else
return rxe_mr_copy_xarray(mr, iova, addr, length, dir);
@ -536,7 +536,7 @@ int rxe_mr_do_atomic_write(struct rxe_mr *mr, u64 iova, u64 value)
u64 *va;
/* ODP is not supported right now. WIP. */
if (mr->umem->is_odp)
if (is_odp_mr(mr))
return RESPST_ERR_UNSUPPORTED_OPCODE;
/* See IBA oA19-28 */

4
drivers/infiniband/sw/rxe/rxe_resp.c
View File

@ -650,7 +650,7 @@ static enum resp_states process_flush(struct rxe_qp *qp,
struct resp_res *res = qp->resp.res;
/* ODP is not supported right now. WIP. */
if (mr->umem->is_odp)
if (is_odp_mr(mr))
return RESPST_ERR_UNSUPPORTED_OPCODE;
/* oA19-14, oA19-15 */
@ -706,7 +706,7 @@ static enum resp_states atomic_reply(struct rxe_qp *qp,
if (!res->replay) {
u64 iova = qp->resp.va + qp->resp.offset;
if (mr->umem->is_odp)
if (is_odp_mr(mr))
err = rxe_odp_atomic_op(mr, iova, pkt->opcode,
atmeth_comp(pkt),
atmeth_swap_add(pkt),

7
include/rdma/ib_verbs.h
View File

@ -4790,7 +4790,14 @@ void roce_del_all_netdev_gids(struct ib_device *ib_dev,
struct ib_ucontext *ib_uverbs_get_ucontext_file(struct ib_uverbs_file *ufile);
#if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS)
int uverbs_destroy_def_handler(struct uverbs_attr_bundle *attrs);
#else
static inline int uverbs_destroy_def_handler(struct uverbs_attr_bundle *attrs)
{
return 0;
}
#endif
struct net_device *rdma_alloc_netdev(struct ib_device *device, u32 port_num,
enum rdma_netdev_t type, const char *name,