From d74595278f4ab192af66d9e60a9087464638beee Mon Sep 17 00:00:00 2001 From: Michael Hernandez Date: Mon, 12 Dec 2016 14:40:07 -0800 Subject: scsi: qla2xxx: Add multiple queue pair functionality. Replaced existing multiple queue functionality with framework that allows for the creation of pairs of request and response queues, either at start of day or dynamically. Queue pair creation depend on module parameter "ql2xmqsupport", which need to be enabled to create queue pair. Signed-off-by: Sawan Chandak Signed-off-by: Michael Hernandez Signed-off-by: Himanshu Madhani Acked-by: Christoph Hellwig Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_inline.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'drivers/scsi/qla2xxx/qla_inline.h') diff --git a/drivers/scsi/qla2xxx/qla_inline.h b/drivers/scsi/qla2xxx/qla_inline.h index edc48f3b8230..44e404583c86 100644 --- a/drivers/scsi/qla2xxx/qla_inline.h +++ b/drivers/scsi/qla2xxx/qla_inline.h @@ -215,6 +215,36 @@ qla2x00_reset_active(scsi_qla_host_t *vha) test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags); } +static inline srb_t * +qla2xxx_get_qpair_sp(struct qla_qpair *qpair, fc_port_t *fcport, gfp_t flag) +{ + srb_t *sp = NULL; + uint8_t bail; + + QLA_QPAIR_MARK_BUSY(qpair, bail); + if (unlikely(bail)) + return NULL; + + sp = mempool_alloc(qpair->srb_mempool, flag); + if (!sp) + goto done; + + memset(sp, 0, sizeof(*sp)); + sp->fcport = fcport; + sp->iocbs = 1; +done: + if (!sp) + QLA_QPAIR_MARK_NOT_BUSY(qpair); + return sp; +} + +static inline void +qla2xxx_rel_qpair_sp(struct qla_qpair *qpair, srb_t *sp) +{ + mempool_free(sp, qpair->srb_mempool); + QLA_QPAIR_MARK_NOT_BUSY(qpair); +} + static inline srb_t * qla2x00_get_sp(scsi_qla_host_t *vha, fc_port_t *fcport, gfp_t flag) { -- cgit