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RDMA/bnxt_re: Add SRQ support for Broadcom adapters

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Shared receive queue (SRQ) is defined as a pool of
receive buffers shared among multiple QPs which belong
to same protection domain in a given process context.
Use of SRQ reduces the memory foot print of IB applications.

Broadcom adapters support SRQ, adding code-changes to enable
shared receive queue.

Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Devesh Sharma 2018-01-11 11:52:11 -05:00 • committed by Doug Ledford
commit 37cb11acf1
8 changed files with 825 additions and 98 deletions
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9
include/uapi/rdma/bnxt_re-abi.h
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@ -82,6 +82,15 @@ struct bnxt_re_qp_resp {
__u32 rsvd;
};
struct bnxt_re_srq_req {
__u64 srqva;
__u64 srq_handle;
};
struct bnxt_re_srq_resp {
__u32 srqid;
};
enum bnxt_re_shpg_offt {
BNXT_RE_BEG_RESV_OFFT = 0x00,
BNXT_RE_AVID_OFFT = 0x10,