From 90f104da22bbf2e2b8a2136c12fb4e013fccf504 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Thu, 6 Oct 2005 13:15:56 -0700 Subject: [IB] mthca: SRQ limit reached events Our hardware supports generating an event when the number of receives posted to a shared receive queue (SRQ) falls below a user-specified limit. Implement mthca_modify_srq() to arm the limit, and add code to handle dispatching SRQ events when they occur. Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_eq.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) (limited to 'drivers/infiniband/hw/mthca/mthca_eq.c') diff --git a/drivers/infiniband/hw/mthca/mthca_eq.c b/drivers/infiniband/hw/mthca/mthca_eq.c index c81fa8e975e..f2afdc6c7e6 100644 --- a/drivers/infiniband/hw/mthca/mthca_eq.c +++ b/drivers/infiniband/hw/mthca/mthca_eq.c @@ -83,7 +83,8 @@ enum { MTHCA_EVENT_TYPE_PATH_MIG = 0x01, MTHCA_EVENT_TYPE_COMM_EST = 0x02, MTHCA_EVENT_TYPE_SQ_DRAINED = 0x03, - MTHCA_EVENT_TYPE_SRQ_LAST_WQE = 0x13, + MTHCA_EVENT_TYPE_SRQ_QP_LAST_WQE = 0x13, + MTHCA_EVENT_TYPE_SRQ_LIMIT = 0x14, MTHCA_EVENT_TYPE_CQ_ERROR = 0x04, MTHCA_EVENT_TYPE_WQ_CATAS_ERROR = 0x05, MTHCA_EVENT_TYPE_EEC_CATAS_ERROR = 0x06, @@ -110,8 +111,9 @@ enum { (1ULL << MTHCA_EVENT_TYPE_LOCAL_CATAS_ERROR) | \ (1ULL << MTHCA_EVENT_TYPE_PORT_CHANGE) | \ (1ULL << MTHCA_EVENT_TYPE_ECC_DETECT)) -#define MTHCA_SRQ_EVENT_MASK (1ULL << MTHCA_EVENT_TYPE_SRQ_CATAS_ERROR) | \ - (1ULL << MTHCA_EVENT_TYPE_SRQ_LAST_WQE) +#define MTHCA_SRQ_EVENT_MASK ((1ULL << MTHCA_EVENT_TYPE_SRQ_CATAS_ERROR) | \ + (1ULL << MTHCA_EVENT_TYPE_SRQ_QP_LAST_WQE) | \ + (1ULL << MTHCA_EVENT_TYPE_SRQ_LIMIT)) #define MTHCA_CMD_EVENT_MASK (1ULL << MTHCA_EVENT_TYPE_CMD) #define MTHCA_EQ_DB_INC_CI (1 << 24) @@ -141,6 +143,9 @@ struct mthca_eqe { struct { __be32 qpn; } __attribute__((packed)) qp; + struct { + __be32 srqn; + } __attribute__((packed)) srq; struct { __be32 cqn; u32 reserved1; @@ -305,6 +310,16 @@ static int mthca_eq_int(struct mthca_dev *dev, struct mthca_eq *eq) IB_EVENT_SQ_DRAINED); break; + case MTHCA_EVENT_TYPE_SRQ_QP_LAST_WQE: + mthca_qp_event(dev, be32_to_cpu(eqe->event.qp.qpn) & 0xffffff, + IB_EVENT_QP_LAST_WQE_REACHED); + break; + + case MTHCA_EVENT_TYPE_SRQ_LIMIT: + mthca_srq_event(dev, be32_to_cpu(eqe->event.srq.srqn) & 0xffffff, + IB_EVENT_SRQ_LIMIT_REACHED); + break; + case MTHCA_EVENT_TYPE_WQ_CATAS_ERROR: mthca_qp_event(dev, be32_to_cpu(eqe->event.qp.qpn) & 0xffffff, IB_EVENT_QP_FATAL); -- cgit v1.2.3