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IB/hfi1: Send MAD traps until repressed

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A trap should be sent to the FM until the FM sends a repress message.
This is in line with the IBTA 13.4.9.

Add the ability to resend traps until a repress message is received.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Michael N. Henry <michael.n.henry@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Michael J. Ruhl
2017-07-24 07:46:12 -07:00
committed by Doug Ledford
parent 2250563e2c
commit bf90aadd63
4 changed files with 312 additions and 90 deletions
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17
include/rdma/rdma_vt.h
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@@ -57,11 +57,21 @@
#include <linux/list.h>
#include <linux/hash.h>
#include <rdma/ib_verbs.h>
#include <rdma/ib_mad.h>
#include <rdma/rdmavt_mr.h>
#include <rdma/rdmavt_qp.h>
#define RVT_MAX_PKEY_VALUES 16
#define RVT_MAX_TRAP_LEN 100 /* Limit pending trap list */
#define RVT_MAX_TRAP_LISTS ((IB_NOTICE_TYPE_INFO & 0x0F) + 1)
#define RVT_TRAP_TIMEOUT 4096 /* 4.096 usec */
struct trap_list {
u32 list_len;
struct list_head list;
};
struct rvt_ibport {
struct rvt_qp __rcu *qp[2];
struct ib_mad_agent *send_agent; /* agent for SMI (traps) */
@@ -128,6 +138,13 @@ struct rvt_ibport {
u16 *pkey_table;
struct rvt_ah *sm_ah;
/*
* Keep a list of traps that have not been repressed. They will be
* resent based on trap_timer.
*/
struct trap_list trap_lists[RVT_MAX_TRAP_LISTS];
struct timer_list trap_timer;
};
#define RVT_CQN_MAX 16 /* maximum length of cq name */