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IB/ehca: Rework irq handler

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Rework ehca interrupt handling to avoid/reduce missed irq events.

Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Hoang-Nam Nguyen
2007-02-15 17:06:33 +01:00
committed by Roland Dreier
parent 551fd6122d
commit 78d8d5f9ef
6 changed files with 190 additions and 99 deletions
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20
drivers/infiniband/hw/ehca/ehca_classes.h
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@@ -42,8 +42,6 @@
#ifndef __EHCA_CLASSES_H__
#define __EHCA_CLASSES_H__
#include "ehca_classes.h"
#include "ipz_pt_fn.h"
struct ehca_module;
struct ehca_qp;
@@ -54,15 +52,23 @@ struct ehca_mw;
struct ehca_pd;
struct ehca_av;
#ifdef CONFIG_PPC64
#include "ehca_classes_pSeries.h"
#endif
#include <rdma/ib_verbs.h>
#include <rdma/ib_user_verbs.h>
#ifdef CONFIG_PPC64
#include "ehca_classes_pSeries.h"
#endif
#include "ipz_pt_fn.h"
#include "ehca_qes.h"
#include "ehca_irq.h"
#define EHCA_EQE_CACHE_SIZE 20
struct ehca_eqe_cache_entry {
struct ehca_eqe *eqe;
struct ehca_cq *cq;
};
struct ehca_eq {
u32 length;
struct ipz_queue ipz_queue;
@@ -74,6 +80,8 @@ struct ehca_eq {
spinlock_t spinlock;
struct tasklet_struct interrupt_task;
u32 ist;
spinlock_t irq_spinlock;
struct ehca_eqe_cache_entry eqe_cache[EHCA_EQE_CACHE_SIZE];
};
struct ehca_sport {