event/cnxk: add device start
authorShijith Thotton <sthotton@marvell.com>
Tue, 4 May 2021 00:27:08 +0000 (05:57 +0530)
committerJerin Jacob <jerinj@marvell.com>
Tue, 4 May 2021 04:45:55 +0000 (06:45 +0200)
Add eventdev start function along with few cleanup API's to maintain
sanity.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Signed-off-by: Shijith Thotton <sthotton@marvell.com>
drivers/event/cnxk/cn10k_eventdev.c
drivers/event/cnxk/cn9k_eventdev.c
drivers/event/cnxk/cnxk_eventdev.c
drivers/event/cnxk/cnxk_eventdev.h

index 37a7c8a..8d6b1e4 100644 (file)
@@ -112,6 +112,117 @@ cn10k_sso_hws_release(void *arg, void *hws)
        memset(ws, 0, sizeof(*ws));
 }
 
+static void
+cn10k_sso_hws_flush_events(void *hws, uint8_t queue_id, uintptr_t base,
+                          cnxk_handle_event_t fn, void *arg)
+{
+       struct cn10k_sso_hws *ws = hws;
+       uint64_t cq_ds_cnt = 1;
+       uint64_t aq_cnt = 1;
+       uint64_t ds_cnt = 1;
+       struct rte_event ev;
+       uint64_t val, req;
+
+       plt_write64(0, base + SSO_LF_GGRP_QCTL);
+
+       req = queue_id;     /* GGRP ID */
+       req |= BIT_ULL(18); /* Grouped */
+       req |= BIT_ULL(16); /* WAIT */
+
+       aq_cnt = plt_read64(base + SSO_LF_GGRP_AQ_CNT);
+       ds_cnt = plt_read64(base + SSO_LF_GGRP_MISC_CNT);
+       cq_ds_cnt = plt_read64(base + SSO_LF_GGRP_INT_CNT);
+       cq_ds_cnt &= 0x3FFF3FFF0000;
+
+       while (aq_cnt || cq_ds_cnt || ds_cnt) {
+               plt_write64(req, ws->getwrk_op);
+               cn10k_sso_hws_get_work_empty(ws, &ev);
+               if (fn != NULL && ev.u64 != 0)
+                       fn(arg, ev);
+               if (ev.sched_type != SSO_TT_EMPTY)
+                       cnxk_sso_hws_swtag_flush(ws->tag_wqe_op,
+                                                ws->swtag_flush_op);
+               do {
+                       val = plt_read64(ws->base + SSOW_LF_GWS_PENDSTATE);
+               } while (val & BIT_ULL(56));
+               aq_cnt = plt_read64(base + SSO_LF_GGRP_AQ_CNT);
+               ds_cnt = plt_read64(base + SSO_LF_GGRP_MISC_CNT);
+               cq_ds_cnt = plt_read64(base + SSO_LF_GGRP_INT_CNT);
+               /* Extract cq and ds count */
+               cq_ds_cnt &= 0x3FFF3FFF0000;
+       }
+
+       plt_write64(0, ws->base + SSOW_LF_GWS_OP_GWC_INVAL);
+       rte_mb();
+}
+
+static void
+cn10k_sso_hws_reset(void *arg, void *hws)
+{
+       struct cnxk_sso_evdev *dev = arg;
+       struct cn10k_sso_hws *ws = hws;
+       uintptr_t base = ws->base;
+       uint64_t pend_state;
+       union {
+               __uint128_t wdata;
+               uint64_t u64[2];
+       } gw;
+       uint8_t pend_tt;
+
+       /* Wait till getwork/swtp/waitw/desched completes. */
+       do {
+               pend_state = plt_read64(base + SSOW_LF_GWS_PENDSTATE);
+       } while (pend_state & (BIT_ULL(63) | BIT_ULL(62) | BIT_ULL(58) |
+                              BIT_ULL(56) | BIT_ULL(54)));
+       pend_tt = CNXK_TT_FROM_TAG(plt_read64(base + SSOW_LF_GWS_WQE0));
+       if (pend_tt != SSO_TT_EMPTY) { /* Work was pending */
+               if (pend_tt == SSO_TT_ATOMIC || pend_tt == SSO_TT_ORDERED)
+                       cnxk_sso_hws_swtag_untag(base +
+                                                SSOW_LF_GWS_OP_SWTAG_UNTAG);
+               plt_write64(0, base + SSOW_LF_GWS_OP_DESCHED);
+       }
+
+       /* Wait for desched to complete. */
+       do {
+               pend_state = plt_read64(base + SSOW_LF_GWS_PENDSTATE);
+       } while (pend_state & BIT_ULL(58));
+
+       switch (dev->gw_mode) {
+       case CN10K_GW_MODE_PREF:
+               while (plt_read64(base + SSOW_LF_GWS_PRF_WQE0) & BIT_ULL(63))
+                       ;
+               break;
+       case CN10K_GW_MODE_PREF_WFE:
+               while (plt_read64(base + SSOW_LF_GWS_PRF_WQE0) &
+                      SSOW_LF_GWS_TAG_PEND_GET_WORK_BIT)
+                       continue;
+               plt_write64(0, base + SSOW_LF_GWS_OP_GWC_INVAL);
+               break;
+       case CN10K_GW_MODE_NONE:
+       default:
+               break;
+       }
+
+       if (CNXK_TT_FROM_TAG(plt_read64(base + SSOW_LF_GWS_PRF_WQE0)) !=
+           SSO_TT_EMPTY) {
+               plt_write64(BIT_ULL(16) | 1, ws->getwrk_op);
+               do {
+                       roc_load_pair(gw.u64[0], gw.u64[1], ws->tag_wqe_op);
+               } while (gw.u64[0] & BIT_ULL(63));
+               pend_tt = CNXK_TT_FROM_TAG(plt_read64(base + SSOW_LF_GWS_WQE0));
+               if (pend_tt != SSO_TT_EMPTY) { /* Work was pending */
+                       if (pend_tt == SSO_TT_ATOMIC ||
+                           pend_tt == SSO_TT_ORDERED)
+                               cnxk_sso_hws_swtag_untag(
+                                       base + SSOW_LF_GWS_OP_SWTAG_UNTAG);
+                       plt_write64(0, base + SSOW_LF_GWS_OP_DESCHED);
+               }
+       }
+
+       plt_write64(0, base + SSOW_LF_GWS_OP_GWC_INVAL);
+       rte_mb();
+}
+
 static void
 cn10k_sso_set_rsrc(void *arg)
 {
@@ -263,6 +374,20 @@ cn10k_sso_port_unlink(struct rte_eventdev *event_dev, void *port,
        return (int)nb_unlinks;
 }
 
+static int
+cn10k_sso_start(struct rte_eventdev *event_dev)
+{
+       int rc;
+
+       rc = cnxk_sso_start(event_dev, cn10k_sso_hws_reset,
+                           cn10k_sso_hws_flush_events);
+       if (rc < 0)
+               return rc;
+       cn10k_sso_fp_fns_set(event_dev);
+
+       return rc;
+}
+
 static struct rte_eventdev_ops cn10k_sso_dev_ops = {
        .dev_infos_get = cn10k_sso_info_get,
        .dev_configure = cn10k_sso_dev_configure,
@@ -275,6 +400,8 @@ static struct rte_eventdev_ops cn10k_sso_dev_ops = {
        .port_link = cn10k_sso_port_link,
        .port_unlink = cn10k_sso_port_unlink,
        .timeout_ticks = cnxk_sso_timeout_ticks,
+
+       .dev_start = cn10k_sso_start,
 };
 
 static int
index 6ba3d14..20919e3 100644 (file)
@@ -126,6 +126,102 @@ cn9k_sso_hws_release(void *arg, void *hws)
        }
 }
 
+static void
+cn9k_sso_hws_flush_events(void *hws, uint8_t queue_id, uintptr_t base,
+                         cnxk_handle_event_t fn, void *arg)
+{
+       struct cnxk_sso_evdev *dev = cnxk_sso_pmd_priv(arg);
+       struct cn9k_sso_hws_dual *dws;
+       struct cn9k_sso_hws_state *st;
+       struct cn9k_sso_hws *ws;
+       uint64_t cq_ds_cnt = 1;
+       uint64_t aq_cnt = 1;
+       uint64_t ds_cnt = 1;
+       struct rte_event ev;
+       uintptr_t ws_base;
+       uint64_t val, req;
+
+       plt_write64(0, base + SSO_LF_GGRP_QCTL);
+
+       req = queue_id;     /* GGRP ID */
+       req |= BIT_ULL(18); /* Grouped */
+       req |= BIT_ULL(16); /* WAIT */
+
+       aq_cnt = plt_read64(base + SSO_LF_GGRP_AQ_CNT);
+       ds_cnt = plt_read64(base + SSO_LF_GGRP_MISC_CNT);
+       cq_ds_cnt = plt_read64(base + SSO_LF_GGRP_INT_CNT);
+       cq_ds_cnt &= 0x3FFF3FFF0000;
+
+       if (dev->dual_ws) {
+               dws = hws;
+               st = &dws->ws_state[0];
+               ws_base = dws->base[0];
+       } else {
+               ws = hws;
+               st = (struct cn9k_sso_hws_state *)ws;
+               ws_base = ws->base;
+       }
+
+       while (aq_cnt || cq_ds_cnt || ds_cnt) {
+               plt_write64(req, st->getwrk_op);
+               cn9k_sso_hws_get_work_empty(st, &ev);
+               if (fn != NULL && ev.u64 != 0)
+                       fn(arg, ev);
+               if (ev.sched_type != SSO_TT_EMPTY)
+                       cnxk_sso_hws_swtag_flush(st->tag_op,
+                                                st->swtag_flush_op);
+               do {
+                       val = plt_read64(ws_base + SSOW_LF_GWS_PENDSTATE);
+               } while (val & BIT_ULL(56));
+               aq_cnt = plt_read64(base + SSO_LF_GGRP_AQ_CNT);
+               ds_cnt = plt_read64(base + SSO_LF_GGRP_MISC_CNT);
+               cq_ds_cnt = plt_read64(base + SSO_LF_GGRP_INT_CNT);
+               /* Extract cq and ds count */
+               cq_ds_cnt &= 0x3FFF3FFF0000;
+       }
+
+       plt_write64(0, ws_base + SSOW_LF_GWS_OP_GWC_INVAL);
+}
+
+static void
+cn9k_sso_hws_reset(void *arg, void *hws)
+{
+       struct cnxk_sso_evdev *dev = arg;
+       struct cn9k_sso_hws_dual *dws;
+       struct cn9k_sso_hws *ws;
+       uint64_t pend_state;
+       uint8_t pend_tt;
+       uintptr_t base;
+       uint64_t tag;
+       uint8_t i;
+
+       dws = hws;
+       ws = hws;
+       for (i = 0; i < (dev->dual_ws ? CN9K_DUAL_WS_NB_WS : 1); i++) {
+               base = dev->dual_ws ? dws->base[i] : ws->base;
+               /* Wait till getwork/swtp/waitw/desched completes. */
+               do {
+                       pend_state = plt_read64(base + SSOW_LF_GWS_PENDSTATE);
+               } while (pend_state & (BIT_ULL(63) | BIT_ULL(62) | BIT_ULL(58) |
+                                      BIT_ULL(56)));
+
+               tag = plt_read64(base + SSOW_LF_GWS_TAG);
+               pend_tt = (tag >> 32) & 0x3;
+               if (pend_tt != SSO_TT_EMPTY) { /* Work was pending */
+                       if (pend_tt == SSO_TT_ATOMIC ||
+                           pend_tt == SSO_TT_ORDERED)
+                               cnxk_sso_hws_swtag_untag(
+                                       base + SSOW_LF_GWS_OP_SWTAG_UNTAG);
+                       plt_write64(0, base + SSOW_LF_GWS_OP_DESCHED);
+               }
+
+               /* Wait for desched to complete. */
+               do {
+                       pend_state = plt_read64(base + SSOW_LF_GWS_PENDSTATE);
+               } while (pend_state & BIT_ULL(58));
+       }
+}
+
 static void
 cn9k_sso_set_rsrc(void *arg)
 {
@@ -352,6 +448,21 @@ cn9k_sso_port_unlink(struct rte_eventdev *event_dev, void *port,
        return (int)nb_unlinks;
 }
 
+static int
+cn9k_sso_start(struct rte_eventdev *event_dev)
+{
+       int rc;
+
+       rc = cnxk_sso_start(event_dev, cn9k_sso_hws_reset,
+                           cn9k_sso_hws_flush_events);
+       if (rc < 0)
+               return rc;
+
+       cn9k_sso_fp_fns_set(event_dev);
+
+       return rc;
+}
+
 static struct rte_eventdev_ops cn9k_sso_dev_ops = {
        .dev_infos_get = cn9k_sso_info_get,
        .dev_configure = cn9k_sso_dev_configure,
@@ -364,6 +475,8 @@ static struct rte_eventdev_ops cn9k_sso_dev_ops = {
        .port_link = cn9k_sso_port_link,
        .port_unlink = cn9k_sso_port_unlink,
        .timeout_ticks = cnxk_sso_timeout_ticks,
+
+       .dev_start = cn9k_sso_start,
 };
 
 static int
index 2a387ff..5feae52 100644 (file)
@@ -326,6 +326,70 @@ cnxk_sso_timeout_ticks(struct rte_eventdev *event_dev, uint64_t ns,
        return 0;
 }
 
+static void
+cnxk_handle_event(void *arg, struct rte_event event)
+{
+       struct rte_eventdev *event_dev = arg;
+
+       if (event_dev->dev_ops->dev_stop_flush != NULL)
+               event_dev->dev_ops->dev_stop_flush(
+                       event_dev->data->dev_id, event,
+                       event_dev->data->dev_stop_flush_arg);
+}
+
+static void
+cnxk_sso_cleanup(struct rte_eventdev *event_dev, cnxk_sso_hws_reset_t reset_fn,
+                cnxk_sso_hws_flush_t flush_fn, uint8_t enable)
+{
+       struct cnxk_sso_evdev *dev = cnxk_sso_pmd_priv(event_dev);
+       uintptr_t hwgrp_base;
+       uint16_t i;
+       void *ws;
+
+       for (i = 0; i < dev->nb_event_ports; i++) {
+               ws = event_dev->data->ports[i];
+               reset_fn(dev, ws);
+       }
+
+       rte_mb();
+       ws = event_dev->data->ports[0];
+
+       for (i = 0; i < dev->nb_event_queues; i++) {
+               /* Consume all the events through HWS0 */
+               hwgrp_base = roc_sso_hwgrp_base_get(&dev->sso, i);
+               flush_fn(ws, i, hwgrp_base, cnxk_handle_event, event_dev);
+               /* Enable/Disable SSO GGRP */
+               plt_write64(enable, hwgrp_base + SSO_LF_GGRP_QCTL);
+       }
+}
+
+int
+cnxk_sso_start(struct rte_eventdev *event_dev, cnxk_sso_hws_reset_t reset_fn,
+              cnxk_sso_hws_flush_t flush_fn)
+{
+       struct cnxk_sso_evdev *dev = cnxk_sso_pmd_priv(event_dev);
+       struct roc_sso_hwgrp_qos qos[dev->qos_queue_cnt];
+       int i, rc;
+
+       plt_sso_dbg();
+       for (i = 0; i < dev->qos_queue_cnt; i++) {
+               qos->hwgrp = dev->qos_parse_data[i].queue;
+               qos->iaq_prcnt = dev->qos_parse_data[i].iaq_prcnt;
+               qos->taq_prcnt = dev->qos_parse_data[i].taq_prcnt;
+               qos->xaq_prcnt = dev->qos_parse_data[i].xaq_prcnt;
+       }
+       rc = roc_sso_hwgrp_qos_config(&dev->sso, qos, dev->qos_queue_cnt,
+                                     dev->xae_cnt);
+       if (rc < 0) {
+               plt_sso_dbg("failed to configure HWGRP QoS rc = %d", rc);
+               return -EINVAL;
+       }
+       cnxk_sso_cleanup(event_dev, reset_fn, flush_fn, true);
+       rte_mb();
+
+       return 0;
+}
+
 static void
 parse_queue_param(char *value, void *opaque)
 {
index 0a3ab71..f175c23 100644 (file)
@@ -48,6 +48,10 @@ typedef void (*cnxk_sso_hws_setup_t)(void *dev, void *ws, uintptr_t *grp_base);
 typedef void (*cnxk_sso_hws_release_t)(void *dev, void *ws);
 typedef int (*cnxk_sso_link_t)(void *dev, void *ws, uint16_t *map,
                               uint16_t nb_link);
+typedef void (*cnxk_handle_event_t)(void *arg, struct rte_event ev);
+typedef void (*cnxk_sso_hws_reset_t)(void *arg, void *ws);
+typedef void (*cnxk_sso_hws_flush_t)(void *ws, uint8_t queue_id, uintptr_t base,
+                                    cnxk_handle_event_t fn, void *arg);
 
 struct cnxk_sso_qos {
        uint16_t queue;
@@ -198,5 +202,8 @@ int cnxk_sso_port_setup(struct rte_eventdev *event_dev, uint8_t port_id,
                        cnxk_sso_hws_setup_t hws_setup_fn);
 int cnxk_sso_timeout_ticks(struct rte_eventdev *event_dev, uint64_t ns,
                           uint64_t *tmo_ticks);
+int cnxk_sso_start(struct rte_eventdev *event_dev,
+                  cnxk_sso_hws_reset_t reset_fn,
+                  cnxk_sso_hws_flush_t flush_fn);
 
 #endif /* __CNXK_EVENTDEV_H__ */