event/octeontx: support linking queues to ports

queues to port link and unlink establishment is through
setting/resetting the queue/group membership in
SSOW_VHWS_GRPMSK_CHGX

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Acked-by: Gage Eads <gage.eads@intel.com>

diff --git a/drivers/event/octeontx/ssovf_evdev.c b/drivers/event/octeontx/ssovf_evdev.c
index 117edde..364755b 100644 (file)
--- a/drivers/event/octeontx/ssovf_evdev.c
+++ b/drivers/event/octeontx/ssovf_evdev.c
@@ -260,6 +260,46 @@ ssovf_port_setup(struct rte_eventdev *dev, uint8_t port_id,
        ssovf_log_dbg("port=%d ws=%p", port_id, ws);
        return 0;
 }
+
+static int
+ssovf_port_link(struct rte_eventdev *dev, void *port, const uint8_t queues[],
+               const uint8_t priorities[], uint16_t nb_links)
+{
+       uint16_t link;
+       uint64_t val;
+       struct ssows *ws = port;
+
+       ssovf_func_trace("port=%d nb_links=%d", ws->port, nb_links);
+       RTE_SET_USED(dev);
+       RTE_SET_USED(priorities);
+
+       for (link = 0; link < nb_links; link++) {
+               val = queues[link];
+               val |= (1ULL << 24); /* Set membership */
+               ssovf_write64(val, ws->base + SSOW_VHWS_GRPMSK_CHGX(0));
+       }
+       return (int)nb_links;
+}
+
+static int
+ssovf_port_unlink(struct rte_eventdev *dev, void *port, uint8_t queues[],
+                       uint16_t nb_unlinks)
+{
+       uint16_t unlink;
+       uint64_t val;
+       struct ssows *ws = port;
+
+       ssovf_func_trace("port=%d nb_links=%d", ws->port, nb_unlinks);
+       RTE_SET_USED(dev);
+
+       for (unlink = 0; unlink < nb_unlinks; unlink++) {
+               val = queues[unlink];
+               val &= ~(1ULL << 24); /* Clear membership */
+               ssovf_write64(val, ws->base + SSOW_VHWS_GRPMSK_CHGX(0));
+       }
+       return (int)nb_unlinks;
+}
+
 /* Initialize and register event driver with DPDK Application */
 static const struct rte_eventdev_ops ssovf_ops = {
        .dev_infos_get    = ssovf_info_get,
@@ -270,6 +310,8 @@ static const struct rte_eventdev_ops ssovf_ops = {
        .port_def_conf    = ssovf_port_def_conf,
        .port_setup       = ssovf_port_setup,
        .port_release     = ssovf_port_release,
+       .port_link        = ssovf_port_link,
+       .port_unlink      = ssovf_port_unlink,
 };
 
 static int

diff --git a/drivers/event/octeontx/ssovf_evdev.h b/drivers/event/octeontx/ssovf_evdev.h
index eda0e37..9a6bac5 100644 (file)
--- a/drivers/event/octeontx/ssovf_evdev.h
+++ b/drivers/event/octeontx/ssovf_evdev.h
@@ -120,6 +120,14 @@
 #define SSO_GRP_GET_PRIORITY              0x7
 #define SSO_GRP_SET_PRIORITY              0x8
 
+/*
+ * In Cavium OcteonTX SoC, all accesses to the device registers are
+ * implictly strongly ordered. So, The relaxed version of IO operation is
+ * safe to use with out any IO memory barriers.
+ */
+#define ssovf_read64 rte_read64_relaxed
+#define ssovf_write64 rte_write64_relaxed
+
 struct ssovf_evdev {
        uint8_t max_event_queues;
        uint8_t max_event_ports;