From mboxrd@z Thu Jan 1 00:00:00 1970 From: Harry van Haaren Subject: [PATCH v5 08/20] event/sw: add support for linking queues to ports Date: Fri, 24 Mar 2017 16:53:03 +0000 Message-ID: <1490374395-149320-9-git-send-email-harry.van.haaren@intel.com> References: <489175012-101439-1-git-send-email-harry.van.haaren@intel.com> <1490374395-149320-1-git-send-email-harry.van.haaren@intel.com> Cc: jerin.jacob@caviumnetworks.com, Bruce Richardson , Harry van Haaren To: dev@dpdk.org Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id 2A920CF9C for ; Fri, 24 Mar 2017 17:53:25 +0100 (CET) In-Reply-To: <1490374395-149320-1-git-send-email-harry.van.haaren@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Bruce Richardson Signed-off-by: Bruce Richardson Signed-off-by: Harry van Haaren --- drivers/event/sw/sw_evdev.c | 81 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) diff --git a/drivers/event/sw/sw_evdev.c b/drivers/event/sw/sw_evdev.c index 4b8370d..82ac3bd 100644 --- a/drivers/event/sw/sw_evdev.c +++ b/drivers/event/sw/sw_evdev.c @@ -36,6 +36,7 @@ #include #include #include +#include #include "sw_evdev.h" #include "iq_ring.h" @@ -50,6 +51,84 @@ static void sw_info_get(struct rte_eventdev *dev, struct rte_event_dev_info *info); static int +sw_port_link(struct rte_eventdev *dev, void *port, const uint8_t queues[], + const uint8_t priorities[], uint16_t num) +{ + struct sw_port *p = (void *)port; + struct sw_evdev *sw = sw_pmd_priv(dev); + int i; + + RTE_SET_USED(priorities); + for (i = 0; i < num; i++) { + struct sw_qid *q = &sw->qids[queues[i]]; + + /* check for qid map overflow */ + if (q->cq_num_mapped_cqs >= RTE_DIM(q->cq_map)) + break; + + if (p->is_directed && p->num_qids_mapped > 0) + break; + + if (q->type == SW_SCHED_TYPE_DIRECT) { + /* check directed qids only map to one port */ + if (p->num_qids_mapped > 0) { + rte_errno = -EDQUOT; + break; + } + /* check port only takes a directed flow */ + if (num > 1) { + rte_errno = -EDQUOT; + break; + } + + p->is_directed = 1; + p->num_qids_mapped = 1; + } else if (q->type == RTE_SCHED_TYPE_ORDERED) { + p->num_ordered_qids++; + p->num_qids_mapped++; + } else if (q->type == RTE_SCHED_TYPE_ATOMIC) { + p->num_qids_mapped++; + } + + q->cq_map[q->cq_num_mapped_cqs] = p->id; + rte_smp_wmb(); + q->cq_num_mapped_cqs++; + } + return i; +} + +static int +sw_port_unlink(struct rte_eventdev *dev, void *port, uint8_t queues[], + uint16_t nb_unlinks) +{ + struct sw_port *p = (void *)port; + struct sw_evdev *sw = sw_pmd_priv(dev); + unsigned int i, j; + + int unlinked = 0; + for (i = 0; i < nb_unlinks; i++) { + struct sw_qid *q = &sw->qids[queues[i]]; + for (j = 0; j < q->cq_num_mapped_cqs; j++) { + if (q->cq_map[j] == p->id) { + q->cq_map[j] = + q->cq_map[q->cq_num_mapped_cqs - 1]; + rte_smp_wmb(); + q->cq_num_mapped_cqs--; + unlinked++; + + p->num_qids_mapped--; + + if (q->type == RTE_SCHED_TYPE_ORDERED) + p->num_ordered_qids--; + + continue; + } + } + } + return unlinked; +} + +static int sw_port_setup(struct rte_eventdev *dev, uint8_t port_id, const struct rte_event_port_conf *conf) { @@ -402,6 +481,8 @@ sw_probe(const char *name, const char *params) .port_def_conf = sw_port_def_conf, .port_setup = sw_port_setup, .port_release = sw_port_release, + .port_link = sw_port_link, + .port_unlink = sw_port_unlink, }; static const char *const args[] = { -- 2.7.4