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Subject[PATCH][11/26] IB/mthca: mem-free EQ initialization
Date
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Add code to initialize EQ context properly in both Tavor and mem-free mode.

Signed-off-by: Roland Dreier <roland@topspin.com>


--- linux-export.orig/drivers/infiniband/hw/mthca/mthca_eq.c 2005-03-03 14:12:56.154732247 -0800
+++ linux-export/drivers/infiniband/hw/mthca/mthca_eq.c 2005-03-03 14:12:57.462448386 -0800
@@ -54,10 +54,10 @@
u32 flags;
u64 start;
u32 logsize_usrpage;
- u32 pd;
+ u32 tavor_pd; /* reserved for Arbel */
u8 reserved1[3];
u8 intr;
- u32 lost_count;
+ u32 arbel_pd; /* lost_count for Tavor */
u32 lkey;
u32 reserved2[2];
u32 consumer_index;
@@ -75,6 +75,7 @@
#define MTHCA_EQ_STATE_ARMED ( 1 << 8)
#define MTHCA_EQ_STATE_FIRED ( 2 << 8)
#define MTHCA_EQ_STATE_ALWAYS_ARMED ( 3 << 8)
+#define MTHCA_EQ_STATE_ARBEL ( 8 << 8)

enum {
MTHCA_EVENT_TYPE_COMP = 0x00,
@@ -467,10 +468,16 @@
MTHCA_EQ_OWNER_HW |
MTHCA_EQ_STATE_ARMED |
MTHCA_EQ_FLAG_TR);
- eq_context->start = cpu_to_be64(0);
- eq_context->logsize_usrpage = cpu_to_be32((ffs(nent) - 1) << 24 |
- dev->driver_uar.index);
- eq_context->pd = cpu_to_be32(dev->driver_pd.pd_num);
+ if (dev->hca_type == ARBEL_NATIVE)
+ eq_context->flags |= cpu_to_be32(MTHCA_EQ_STATE_ARBEL);
+
+ eq_context->logsize_usrpage = cpu_to_be32((ffs(nent) - 1) << 24);
+ if (dev->hca_type == ARBEL_NATIVE) {
+ eq_context->arbel_pd = cpu_to_be32(dev->driver_pd.pd_num);
+ } else {
+ eq_context->logsize_usrpage |= cpu_to_be32(dev->driver_uar.index);
+ eq_context->tavor_pd = cpu_to_be32(dev->driver_pd.pd_num);
+ }
eq_context->intr = intr;
eq_context->lkey = cpu_to_be32(eq->mr.ibmr.lkey);

-
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