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RDMA/ocrdma: Report EQ full fatal error 

Detect when Event Queue (EQ) becomes full and print a warning message.

Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Devesh Sharma 2015-05-19 11:32:33 +05:30 committed by Doug Ledford
parent 314fdf4473
commit 5e6f9237f8
2 changed files with 13 additions and 0 deletions
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6
drivers/infiniband/hw/ocrdma/ocrdma_hw.c
View File

@ -933,12 +933,18 @@ static irqreturn_t ocrdma_irq_handler(int irq, void *handle)
struct ocrdma_eqe eqe;
struct ocrdma_eqe *ptr;
u16 cq_id;
u8 mcode;
int budget = eq->cq_cnt;
do {
ptr = ocrdma_get_eqe(eq);
eqe = *ptr;
ocrdma_le32_to_cpu(&eqe, sizeof(eqe));
mcode = (eqe.id_valid & OCRDMA_EQE_MAJOR_CODE_MASK)
>> OCRDMA_EQE_MAJOR_CODE_SHIFT;
if (mcode == OCRDMA_MAJOR_CODE_SENTINAL)
pr_err("EQ full on eqid = 0x%x, eqe = 0x%x\n",
eq->q.id, eqe.id_valid);
if ((eqe.id_valid & OCRDMA_EQE_VALID_MASK) == 0)
break;

7
drivers/infiniband/hw/ocrdma/ocrdma_sli.h
View File

@ -1624,12 +1624,19 @@ struct ocrdma_delete_ah_tbl_rsp {
enum {
OCRDMA_EQE_VALID_SHIFT = 0,
OCRDMA_EQE_VALID_MASK = BIT(0),
OCRDMA_EQE_MAJOR_CODE_MASK = 0x0E,
OCRDMA_EQE_MAJOR_CODE_SHIFT = 0x01,
OCRDMA_EQE_FOR_CQE_MASK = 0xFFFE,
OCRDMA_EQE_RESOURCE_ID_SHIFT = 16,
OCRDMA_EQE_RESOURCE_ID_MASK = 0xFFFF <<
OCRDMA_EQE_RESOURCE_ID_SHIFT,
};
enum major_code {
OCRDMA_MAJOR_CODE_COMPLETION = 0x00,
OCRDMA_MAJOR_CODE_SENTINAL = 0x01
};
struct ocrdma_eqe {
u32 id_valid;
};