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RDMA/qedr: notify user application of supported WIDs

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The number of supported WIDs, if they are supported at all, can be
limited due to resources. Notifying the user space application the
number of available WIDs allows it to utilize them correctly.

Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Amrani, Ram 2017-06-26 19:05:06 +03:00 committed by Doug Ledford
parent ad84dad216
commit 67cbe3532c
2 changed files with 4 additions and 0 deletions
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2
drivers/infiniband/hw/qedr/verbs.c
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@ -377,6 +377,8 @@ struct ib_ucontext *qedr_alloc_ucontext(struct ib_device *ibdev,
memset(&uresp, 0, sizeof(uresp));
uresp.dpm_enabled = dev->user_dpm_enabled;
uresp.wids_enabled = 1;
uresp.wid_count = oparams.wid_count;
uresp.db_pa = ctx->dpi_phys_addr;
uresp.db_size = ctx->dpi_size;
uresp.max_send_wr = dev->attr.max_sqe;

2
include/uapi/rdma/qedr-abi.h
View file

@ -50,6 +50,8 @@ struct qedr_alloc_ucontext_resp {
__u32 sges_per_srq_wr;
__u32 max_cqes;
__u8 dpm_enabled;
__u8 wids_enabled;
__u16 wid_count;
};
struct qedr_alloc_pd_ureq {