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RDMA/siw: Use the common mmap_xa helpers
Remove the functions related to managing the mmap_xa database. This code is now common in ib_core. Link: https://lore.kernel.org/r/20191030094417.16866-6-michal.kalderon@marvell.com Signed-off-by: Ariel Elior <ariel.elior@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Bernard Metzler <bmt@zurich.ibm.com> Reviewed-by: Bernard Metzler <bmt@zurich.ibm.com> Tested-by: Bernard Metzler <bmt@zurich.ibm.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Michal Kalderon
Jason Gunthorpe
parent
e84d3c184e
commit
11f1a75567
@ -221,7 +221,7 @@ struct siw_cq {
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u32 cq_get;
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u32 num_cqe;
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bool kernel_verbs;
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u32 xa_cq_index; /* mmap information for CQE array */
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struct rdma_user_mmap_entry *cq_entry; /* mmap info for CQE array */
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u32 id; /* For debugging only */
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};
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@ -264,7 +264,7 @@ struct siw_srq {
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u32 rq_put;
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u32 rq_get;
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u32 num_rqe; /* max # of wqe's allowed */
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u32 xa_srq_index; /* mmap information for SRQ array */
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struct rdma_user_mmap_entry *srq_entry; /* mmap info for SRQ array */
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char armed; /* inform user if limit hit */
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char kernel_verbs; /* '1' if kernel client */
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};
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@ -478,8 +478,8 @@ struct siw_qp {
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u8 layer : 4, etype : 4;
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u8 ecode;
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} term_info;
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u32 xa_sq_index; /* mmap information for SQE array */
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u32 xa_rq_index; /* mmap information for RQE array */
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struct rdma_user_mmap_entry *sq_entry; /* mmap info for SQE array */
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struct rdma_user_mmap_entry *rq_entry; /* mmap info for RQE array */
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struct rcu_head rcu;
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};
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@ -504,6 +504,11 @@ struct iwarp_msg_info {
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int (*rx_data)(struct siw_qp *qp);
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};
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struct siw_user_mmap_entry {
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struct rdma_user_mmap_entry rdma_entry;
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void *address;
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};
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/* Global siw parameters. Currently set in siw_main.c */
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extern const bool zcopy_tx;
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extern const bool try_gso;
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@ -608,6 +613,12 @@ static inline struct siw_mr *to_siw_mr(struct ib_mr *base_mr)
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return container_of(base_mr, struct siw_mr, base_mr);
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}
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static inline struct siw_user_mmap_entry *
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to_siw_mmap_entry(struct rdma_user_mmap_entry *rdma_mmap)
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{
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return container_of(rdma_mmap, struct siw_user_mmap_entry, rdma_entry);
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}
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static inline struct siw_qp *siw_qp_id2obj(struct siw_device *sdev, int id)
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{
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struct siw_qp *qp;
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@ -279,6 +279,7 @@ static const struct ib_device_ops siw_device_ops = {
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.iw_rem_ref = siw_qp_put_ref,
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.map_mr_sg = siw_map_mr_sg,
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.mmap = siw_mmap,
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.mmap_free = siw_mmap_free,
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.modify_qp = siw_verbs_modify_qp,
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.modify_srq = siw_modify_srq,
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.poll_cq = siw_poll_cq,
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@ -34,44 +34,19 @@ static char ib_qp_state_to_string[IB_QPS_ERR + 1][sizeof("RESET")] = {
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[IB_QPS_ERR] = "ERR"
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};
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static u32 siw_create_uobj(struct siw_ucontext *uctx, void *vaddr, u32 size)
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void siw_mmap_free(struct rdma_user_mmap_entry *rdma_entry)
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{
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struct siw_uobj *uobj;
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struct xa_limit limit = XA_LIMIT(0, SIW_UOBJ_MAX_KEY);
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u32 key;
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struct siw_user_mmap_entry *entry = to_siw_mmap_entry(rdma_entry);
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uobj = kzalloc(sizeof(*uobj), GFP_KERNEL);
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if (!uobj)
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return SIW_INVAL_UOBJ_KEY;
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if (xa_alloc_cyclic(&uctx->xa, &key, uobj, limit, &uctx->uobj_nextkey,
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GFP_KERNEL) < 0) {
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kfree(uobj);
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return SIW_INVAL_UOBJ_KEY;
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}
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uobj->size = PAGE_ALIGN(size);
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uobj->addr = vaddr;
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return key;
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}
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static struct siw_uobj *siw_get_uobj(struct siw_ucontext *uctx,
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unsigned long off, u32 size)
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{
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struct siw_uobj *uobj = xa_load(&uctx->xa, off);
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if (uobj && uobj->size == size)
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return uobj;
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return NULL;
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kfree(entry);
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}
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int siw_mmap(struct ib_ucontext *ctx, struct vm_area_struct *vma)
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{
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struct siw_ucontext *uctx = to_siw_ctx(ctx);
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struct siw_uobj *uobj;
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unsigned long off = vma->vm_pgoff;
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int size = vma->vm_end - vma->vm_start;
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size_t size = vma->vm_end - vma->vm_start;
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struct rdma_user_mmap_entry *rdma_entry;
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struct siw_user_mmap_entry *entry;
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int rv = -EINVAL;
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/*
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@ -79,18 +54,25 @@ int siw_mmap(struct ib_ucontext *ctx, struct vm_area_struct *vma)
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*/
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if (vma->vm_start & (PAGE_SIZE - 1)) {
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pr_warn("siw: mmap not page aligned\n");
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return -EINVAL;
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}
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rdma_entry = rdma_user_mmap_entry_get(&uctx->base_ucontext, vma);
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if (!rdma_entry) {
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siw_dbg(&uctx->sdev->base_dev, "mmap lookup failed: %lu, %#zx\n",
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vma->vm_pgoff, size);
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return -EINVAL;
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}
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entry = to_siw_mmap_entry(rdma_entry);
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rv = remap_vmalloc_range(vma, entry->address, 0);
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if (rv) {
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pr_warn("remap_vmalloc_range failed: %lu, %zu\n", vma->vm_pgoff,
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size);
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goto out;
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}
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uobj = siw_get_uobj(uctx, off, size);
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if (!uobj) {
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siw_dbg(&uctx->sdev->base_dev, "mmap lookup failed: %lu, %u\n",
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off, size);
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goto out;
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}
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rv = remap_vmalloc_range(vma, uobj->addr, 0);
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if (rv)
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pr_warn("remap_vmalloc_range failed: %lu, %u\n", off, size);
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out:
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rdma_user_mmap_entry_put(rdma_entry);
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return rv;
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}
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@ -105,7 +87,7 @@ int siw_alloc_ucontext(struct ib_ucontext *base_ctx, struct ib_udata *udata)
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rv = -ENOMEM;
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goto err_out;
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}
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xa_init_flags(&ctx->xa, XA_FLAGS_ALLOC);
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ctx->uobj_nextkey = 0;
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ctx->sdev = sdev;
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@ -135,19 +117,7 @@ err_out:
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void siw_dealloc_ucontext(struct ib_ucontext *base_ctx)
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{
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struct siw_ucontext *uctx = to_siw_ctx(base_ctx);
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void *entry;
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unsigned long index;
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/*
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* Make sure all user mmap objects are gone. Since QP, CQ
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* and SRQ destroy routines destroy related objects, nothing
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* should be found here.
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*/
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xa_for_each(&uctx->xa, index, entry) {
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kfree(xa_erase(&uctx->xa, index));
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pr_warn("siw: dropping orphaned uobj at %lu\n", index);
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}
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xa_destroy(&uctx->xa);
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atomic_dec(&uctx->sdev->num_ctx);
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}
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@ -293,6 +263,33 @@ void siw_qp_put_ref(struct ib_qp *base_qp)
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siw_qp_put(to_siw_qp(base_qp));
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}
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static struct rdma_user_mmap_entry *
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siw_mmap_entry_insert(struct siw_ucontext *uctx,
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void *address, size_t length,
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u64 *offset)
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{
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struct siw_user_mmap_entry *entry = kzalloc(sizeof(*entry), GFP_KERNEL);
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int rv;
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*offset = SIW_INVAL_UOBJ_KEY;
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if (!entry)
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return NULL;
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entry->address = address;
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rv = rdma_user_mmap_entry_insert(&uctx->base_ucontext,
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&entry->rdma_entry,
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length);
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if (rv) {
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kfree(entry);
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return NULL;
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}
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*offset = rdma_user_mmap_get_offset(&entry->rdma_entry);
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return &entry->rdma_entry;
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}
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/*
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* siw_create_qp()
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*
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@ -317,6 +314,7 @@ struct ib_qp *siw_create_qp(struct ib_pd *pd,
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struct siw_cq *scq = NULL, *rcq = NULL;
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unsigned long flags;
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int num_sqe, num_rqe, rv = 0;
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size_t length;
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siw_dbg(base_dev, "create new QP\n");
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@ -380,8 +378,6 @@ struct ib_qp *siw_create_qp(struct ib_pd *pd,
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spin_lock_init(&qp->orq_lock);
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qp->kernel_verbs = !udata;
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qp->xa_sq_index = SIW_INVAL_UOBJ_KEY;
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qp->xa_rq_index = SIW_INVAL_UOBJ_KEY;
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rv = siw_qp_add(sdev, qp);
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if (rv)
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@ -458,22 +454,27 @@ struct ib_qp *siw_create_qp(struct ib_pd *pd,
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uresp.qp_id = qp_id(qp);
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if (qp->sendq) {
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qp->xa_sq_index =
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siw_create_uobj(uctx, qp->sendq,
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num_sqe * sizeof(struct siw_sqe));
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}
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if (qp->recvq) {
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qp->xa_rq_index =
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siw_create_uobj(uctx, qp->recvq,
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num_rqe * sizeof(struct siw_rqe));
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}
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if (qp->xa_sq_index == SIW_INVAL_UOBJ_KEY ||
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qp->xa_rq_index == SIW_INVAL_UOBJ_KEY) {
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length = num_sqe * sizeof(struct siw_sqe);
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qp->sq_entry =
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siw_mmap_entry_insert(uctx, qp->sendq,
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length, &uresp.sq_key);
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if (!qp->sq_entry) {
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rv = -ENOMEM;
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goto err_out_xa;
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}
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uresp.sq_key = qp->xa_sq_index << PAGE_SHIFT;
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uresp.rq_key = qp->xa_rq_index << PAGE_SHIFT;
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}
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if (qp->recvq) {
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length = num_rqe * sizeof(struct siw_rqe);
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qp->rq_entry =
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siw_mmap_entry_insert(uctx, qp->recvq,
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length, &uresp.rq_key);
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if (!qp->rq_entry) {
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uresp.sq_key = SIW_INVAL_UOBJ_KEY;
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rv = -ENOMEM;
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goto err_out_xa;
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}
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}
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if (udata->outlen < sizeof(uresp)) {
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rv = -EINVAL;
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@ -501,11 +502,10 @@ err_out:
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kfree(siw_base_qp);
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if (qp) {
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if (qp->xa_sq_index != SIW_INVAL_UOBJ_KEY)
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kfree(xa_erase(&uctx->xa, qp->xa_sq_index));
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if (qp->xa_rq_index != SIW_INVAL_UOBJ_KEY)
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kfree(xa_erase(&uctx->xa, qp->xa_rq_index));
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if (uctx) {
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rdma_user_mmap_entry_remove(qp->sq_entry);
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rdma_user_mmap_entry_remove(qp->rq_entry);
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}
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vfree(qp->sendq);
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vfree(qp->recvq);
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kfree(qp);
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@ -619,10 +619,10 @@ int siw_destroy_qp(struct ib_qp *base_qp, struct ib_udata *udata)
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qp->attrs.flags |= SIW_QP_IN_DESTROY;
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qp->rx_stream.rx_suspend = 1;
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if (uctx && qp->xa_sq_index != SIW_INVAL_UOBJ_KEY)
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kfree(xa_erase(&uctx->xa, qp->xa_sq_index));
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if (uctx && qp->xa_rq_index != SIW_INVAL_UOBJ_KEY)
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kfree(xa_erase(&uctx->xa, qp->xa_rq_index));
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if (uctx) {
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rdma_user_mmap_entry_remove(qp->sq_entry);
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rdma_user_mmap_entry_remove(qp->rq_entry);
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}
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down_write(&qp->state_lock);
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@ -1092,8 +1092,8 @@ void siw_destroy_cq(struct ib_cq *base_cq, struct ib_udata *udata)
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siw_cq_flush(cq);
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if (ctx && cq->xa_cq_index != SIW_INVAL_UOBJ_KEY)
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kfree(xa_erase(&ctx->xa, cq->xa_cq_index));
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if (ctx)
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rdma_user_mmap_entry_remove(cq->cq_entry);
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atomic_dec(&sdev->num_cq);
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@ -1130,7 +1130,6 @@ int siw_create_cq(struct ib_cq *base_cq, const struct ib_cq_init_attr *attr,
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size = roundup_pow_of_two(size);
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cq->base_cq.cqe = size;
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cq->num_cqe = size;
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cq->xa_cq_index = SIW_INVAL_UOBJ_KEY;
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if (!udata) {
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cq->kernel_verbs = 1;
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@ -1156,16 +1155,17 @@ int siw_create_cq(struct ib_cq *base_cq, const struct ib_cq_init_attr *attr,
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struct siw_ucontext *ctx =
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rdma_udata_to_drv_context(udata, struct siw_ucontext,
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base_ucontext);
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size_t length = size * sizeof(struct siw_cqe) +
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sizeof(struct siw_cq_ctrl);
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cq->xa_cq_index =
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siw_create_uobj(ctx, cq->queue,
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size * sizeof(struct siw_cqe) +
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sizeof(struct siw_cq_ctrl));
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if (cq->xa_cq_index == SIW_INVAL_UOBJ_KEY) {
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cq->cq_entry =
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siw_mmap_entry_insert(ctx, cq->queue,
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length, &uresp.cq_key);
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if (!cq->cq_entry) {
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rv = -ENOMEM;
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goto err_out;
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}
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uresp.cq_key = cq->xa_cq_index << PAGE_SHIFT;
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uresp.cq_id = cq->id;
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uresp.num_cqe = size;
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@ -1186,8 +1186,8 @@ err_out:
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struct siw_ucontext *ctx =
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rdma_udata_to_drv_context(udata, struct siw_ucontext,
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base_ucontext);
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if (cq->xa_cq_index != SIW_INVAL_UOBJ_KEY)
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kfree(xa_erase(&ctx->xa, cq->xa_cq_index));
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if (ctx)
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rdma_user_mmap_entry_remove(cq->cq_entry);
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vfree(cq->queue);
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}
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atomic_dec(&sdev->num_cq);
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@ -1591,7 +1591,6 @@ int siw_create_srq(struct ib_srq *base_srq,
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}
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srq->max_sge = attrs->max_sge;
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srq->num_rqe = roundup_pow_of_two(attrs->max_wr);
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srq->xa_srq_index = SIW_INVAL_UOBJ_KEY;
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srq->limit = attrs->srq_limit;
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if (srq->limit)
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srq->armed = 1;
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@ -1610,15 +1609,16 @@ int siw_create_srq(struct ib_srq *base_srq,
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}
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if (udata) {
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struct siw_uresp_create_srq uresp = {};
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size_t length = srq->num_rqe * sizeof(struct siw_rqe);
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srq->xa_srq_index = siw_create_uobj(
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ctx, srq->recvq, srq->num_rqe * sizeof(struct siw_rqe));
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if (srq->xa_srq_index == SIW_INVAL_UOBJ_KEY) {
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srq->srq_entry =
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siw_mmap_entry_insert(ctx, srq->recvq,
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length, &uresp.srq_key);
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if (!srq->srq_entry) {
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rv = -ENOMEM;
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goto err_out;
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}
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uresp.srq_key = srq->xa_srq_index;
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uresp.num_rqe = srq->num_rqe;
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if (udata->outlen < sizeof(uresp)) {
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@ -1637,8 +1637,8 @@ int siw_create_srq(struct ib_srq *base_srq,
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err_out:
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if (srq->recvq) {
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if (ctx && srq->xa_srq_index != SIW_INVAL_UOBJ_KEY)
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kfree(xa_erase(&ctx->xa, srq->xa_srq_index));
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if (ctx)
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rdma_user_mmap_entry_remove(srq->srq_entry);
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vfree(srq->recvq);
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}
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atomic_dec(&sdev->num_srq);
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@ -1724,9 +1724,8 @@ void siw_destroy_srq(struct ib_srq *base_srq, struct ib_udata *udata)
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rdma_udata_to_drv_context(udata, struct siw_ucontext,
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base_ucontext);
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if (ctx && srq->xa_srq_index != SIW_INVAL_UOBJ_KEY)
|
||||
kfree(xa_erase(&ctx->xa, srq->xa_srq_index));
|
||||
|
||||
if (ctx)
|
||||
rdma_user_mmap_entry_remove(srq->srq_entry);
|
||||
vfree(srq->recvq);
|
||||
atomic_dec(&sdev->num_srq);
|
||||
}
|
||||
|
||||
@ -83,6 +83,7 @@ void siw_destroy_srq(struct ib_srq *base_srq, struct ib_udata *udata);
|
||||
int siw_post_srq_recv(struct ib_srq *base_srq, const struct ib_recv_wr *wr,
|
||||
const struct ib_recv_wr **bad_wr);
|
||||
int siw_mmap(struct ib_ucontext *ctx, struct vm_area_struct *vma);
|
||||
void siw_mmap_free(struct rdma_user_mmap_entry *rdma_entry);
|
||||
void siw_qp_event(struct siw_qp *qp, enum ib_event_type type);
|
||||
void siw_cq_event(struct siw_cq *cq, enum ib_event_type type);
|
||||
void siw_srq_event(struct siw_srq *srq, enum ib_event_type type);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user