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Commit 5e6f9237 authored by Devesh Sharma's avatar Devesh Sharma Committed by Doug Ledford
Browse files

RDMA/ocrdma: Report EQ full fatal error 



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

Signed-off-by: default avatarDevesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: default avatarSelvin Xavier <selvin.xavier@avagotech.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 314fdf44

drivers/infiniband/hw/ocrdma/ocrdma_hw.c

+6 −0
Original line number Diff line number Diff line
@@ -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;

drivers/infiniband/hw/ocrdma/ocrdma_sli.h

+7 −0
Original line number Diff line number Diff line
@@ -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;

};