From cd24e70258bdce2c198a2d68b4ba54be7dfaa9e9 Mon Sep 17 00:00:00 2001 From: Pavan Nikhilesh Date: Fri, 28 Jun 2019 23:53:15 +0530 Subject: [PATCH] event/octeontx2: add device configure function Add the device configure function that attaches the requested number of SSO GWS(event ports) and GGRP(event queues) LF's to the PF. Signed-off-by: Pavan Nikhilesh --- drivers/event/octeontx2/otx2_evdev.c | 258 +++++++++++++++++++++++++++ drivers/event/octeontx2/otx2_evdev.h | 10 ++ 2 files changed, 268 insertions(+) diff --git a/drivers/event/octeontx2/otx2_evdev.c b/drivers/event/octeontx2/otx2_evdev.c index 839a5ccaab..00996578a4 100644 --- a/drivers/event/octeontx2/otx2_evdev.c +++ b/drivers/event/octeontx2/otx2_evdev.c @@ -37,9 +37,267 @@ otx2_sso_info_get(struct rte_eventdev *event_dev, RTE_EVENT_DEV_CAP_NONSEQ_MODE; } +static int +sso_hw_lf_cfg(struct otx2_mbox *mbox, enum otx2_sso_lf_type type, + uint16_t nb_lf, uint8_t attach) +{ + if (attach) { + struct rsrc_attach_req *req; + + req = otx2_mbox_alloc_msg_attach_resources(mbox); + switch (type) { + case SSO_LF_GGRP: + req->sso = nb_lf; + break; + case SSO_LF_GWS: + req->ssow = nb_lf; + break; + default: + return -EINVAL; + } + req->modify = true; + if (otx2_mbox_process(mbox) < 0) + return -EIO; + } else { + struct rsrc_detach_req *req; + + req = otx2_mbox_alloc_msg_detach_resources(mbox); + switch (type) { + case SSO_LF_GGRP: + req->sso = true; + break; + case SSO_LF_GWS: + req->ssow = true; + break; + default: + return -EINVAL; + } + req->partial = true; + if (otx2_mbox_process(mbox) < 0) + return -EIO; + } + + return 0; +} + +static int +sso_lf_cfg(struct otx2_sso_evdev *dev, struct otx2_mbox *mbox, + enum otx2_sso_lf_type type, uint16_t nb_lf, uint8_t alloc) +{ + void *rsp; + int rc; + + if (alloc) { + switch (type) { + case SSO_LF_GGRP: + { + struct sso_lf_alloc_req *req_ggrp; + req_ggrp = otx2_mbox_alloc_msg_sso_lf_alloc(mbox); + req_ggrp->hwgrps = nb_lf; + } + break; + case SSO_LF_GWS: + { + struct ssow_lf_alloc_req *req_hws; + req_hws = otx2_mbox_alloc_msg_ssow_lf_alloc(mbox); + req_hws->hws = nb_lf; + } + break; + default: + return -EINVAL; + } + } else { + switch (type) { + case SSO_LF_GGRP: + { + struct sso_lf_free_req *req_ggrp; + req_ggrp = otx2_mbox_alloc_msg_sso_lf_free(mbox); + req_ggrp->hwgrps = nb_lf; + } + break; + case SSO_LF_GWS: + { + struct ssow_lf_free_req *req_hws; + req_hws = otx2_mbox_alloc_msg_ssow_lf_free(mbox); + req_hws->hws = nb_lf; + } + break; + default: + return -EINVAL; + } + } + + rc = otx2_mbox_process_msg_tmo(mbox, (void **)&rsp, ~0); + if (rc < 0) + return rc; + + if (alloc && type == SSO_LF_GGRP) { + struct sso_lf_alloc_rsp *rsp_ggrp = rsp; + + dev->xaq_buf_size = rsp_ggrp->xaq_buf_size; + dev->xae_waes = rsp_ggrp->xaq_wq_entries; + dev->iue = rsp_ggrp->in_unit_entries; + } + + return 0; +} + +static int +sso_configure_ports(const struct rte_eventdev *event_dev) +{ + struct otx2_sso_evdev *dev = sso_pmd_priv(event_dev); + struct otx2_mbox *mbox = dev->mbox; + uint8_t nb_lf; + int rc; + + otx2_sso_dbg("Configuring event ports %d", dev->nb_event_ports); + + nb_lf = dev->nb_event_ports; + /* Ask AF to attach required LFs. */ + rc = sso_hw_lf_cfg(mbox, SSO_LF_GWS, nb_lf, true); + if (rc < 0) { + otx2_err("Failed to attach SSO GWS LF"); + return -ENODEV; + } + + if (sso_lf_cfg(dev, mbox, SSO_LF_GWS, nb_lf, true) < 0) { + sso_hw_lf_cfg(mbox, SSO_LF_GWS, nb_lf, false); + otx2_err("Failed to init SSO GWS LF"); + return -ENODEV; + } + + return rc; +} + +static int +sso_configure_queues(const struct rte_eventdev *event_dev) +{ + struct otx2_sso_evdev *dev = sso_pmd_priv(event_dev); + struct otx2_mbox *mbox = dev->mbox; + uint8_t nb_lf; + int rc; + + otx2_sso_dbg("Configuring event queues %d", dev->nb_event_queues); + + nb_lf = dev->nb_event_queues; + /* Ask AF to attach required LFs. */ + rc = sso_hw_lf_cfg(mbox, SSO_LF_GGRP, nb_lf, true); + if (rc < 0) { + otx2_err("Failed to attach SSO GGRP LF"); + return -ENODEV; + } + + if (sso_lf_cfg(dev, mbox, SSO_LF_GGRP, nb_lf, true) < 0) { + sso_hw_lf_cfg(mbox, SSO_LF_GGRP, nb_lf, false); + otx2_err("Failed to init SSO GGRP LF"); + return -ENODEV; + } + + return rc; +} + +static void +sso_lf_teardown(struct otx2_sso_evdev *dev, + enum otx2_sso_lf_type lf_type) +{ + uint8_t nb_lf; + + switch (lf_type) { + case SSO_LF_GGRP: + nb_lf = dev->nb_event_queues; + break; + case SSO_LF_GWS: + nb_lf = dev->nb_event_ports; + break; + default: + return; + } + + sso_lf_cfg(dev, dev->mbox, lf_type, nb_lf, false); + sso_hw_lf_cfg(dev->mbox, lf_type, nb_lf, false); +} + +static int +otx2_sso_configure(const struct rte_eventdev *event_dev) +{ + struct rte_event_dev_config *conf = &event_dev->data->dev_conf; + struct otx2_sso_evdev *dev = sso_pmd_priv(event_dev); + uint32_t deq_tmo_ns; + int rc; + + sso_func_trace(); + deq_tmo_ns = conf->dequeue_timeout_ns; + + if (deq_tmo_ns == 0) + deq_tmo_ns = dev->min_dequeue_timeout_ns; + + if (deq_tmo_ns < dev->min_dequeue_timeout_ns || + deq_tmo_ns > dev->max_dequeue_timeout_ns) { + otx2_err("Unsupported dequeue timeout requested"); + return -EINVAL; + } + + if (conf->event_dev_cfg & RTE_EVENT_DEV_CFG_PER_DEQUEUE_TIMEOUT) + dev->is_timeout_deq = 1; + + dev->deq_tmo_ns = deq_tmo_ns; + + if (conf->nb_event_ports > dev->max_event_ports || + conf->nb_event_queues > dev->max_event_queues) { + otx2_err("Unsupported event queues/ports requested"); + return -EINVAL; + } + + if (conf->nb_event_port_dequeue_depth > 1) { + otx2_err("Unsupported event port deq depth requested"); + return -EINVAL; + } + + if (conf->nb_event_port_enqueue_depth > 1) { + otx2_err("Unsupported event port enq depth requested"); + return -EINVAL; + } + + if (dev->nb_event_queues) { + /* Finit any previous queues. */ + sso_lf_teardown(dev, SSO_LF_GGRP); + } + if (dev->nb_event_ports) { + /* Finit any previous ports. */ + sso_lf_teardown(dev, SSO_LF_GWS); + } + + dev->nb_event_queues = conf->nb_event_queues; + dev->nb_event_ports = conf->nb_event_ports; + + if (sso_configure_ports(event_dev)) { + otx2_err("Failed to configure event ports"); + return -ENODEV; + } + + if (sso_configure_queues(event_dev) < 0) { + otx2_err("Failed to configure event queues"); + rc = -ENODEV; + goto teardown_hws; + } + + dev->configured = 1; + rte_mb(); + + return 0; + +teardown_hws: + sso_lf_teardown(dev, SSO_LF_GWS); + dev->nb_event_queues = 0; + dev->nb_event_ports = 0; + dev->configured = 0; + return rc; +} + /* Initialize and register event driver with DPDK Application */ static struct rte_eventdev_ops otx2_sso_ops = { .dev_infos_get = otx2_sso_info_get, + .dev_configure = otx2_sso_configure, }; static int diff --git a/drivers/event/octeontx2/otx2_evdev.h b/drivers/event/octeontx2/otx2_evdev.h index 4427efcad1..feb4ed6f47 100644 --- a/drivers/event/octeontx2/otx2_evdev.h +++ b/drivers/event/octeontx2/otx2_evdev.h @@ -20,6 +20,11 @@ #define USEC2NSEC(__us) ((__us) * 1E3) +enum otx2_sso_lf_type { + SSO_LF_GGRP, + SSO_LF_GWS +}; + struct otx2_sso_evdev { OTX2_DEV; /* Base class */ uint8_t max_event_queues; @@ -27,10 +32,15 @@ struct otx2_sso_evdev { uint8_t is_timeout_deq; uint8_t nb_event_queues; uint8_t nb_event_ports; + uint8_t configured; uint32_t deq_tmo_ns; uint32_t min_dequeue_timeout_ns; uint32_t max_dequeue_timeout_ns; int32_t max_num_events; + /* HW const */ + uint32_t xae_waes; + uint32_t xaq_buf_size; + uint32_t iue; } __rte_cache_aligned; static inline struct otx2_sso_evdev * -- 2.20.1