From: Pavan Nikhilesh Date: Fri, 28 Jun 2019 18:23:53 +0000 (+0530) Subject: event/octeontx2: add devargs to control timer adapters X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=28e767e819e4f807a911375e493b89b4461b454b;p=dpdk.git event/octeontx2: add devargs to control timer adapters Add devargs to control each event timer adapter i.e. TIM rings internal parameters uniquely. The following dict format is expected [ring-chnk_slots-disable_npa-stats_ena]. 0 represents default values. Example: --dev "0002:0e:00.0,tim_ring_ctl=[2-1023-1-0]" Signed-off-by: Pavan Nikhilesh --- diff --git a/doc/guides/eventdevs/octeontx2.rst b/doc/guides/eventdevs/octeontx2.rst index baa866a1e1..e5624ba23a 100644 --- a/doc/guides/eventdevs/octeontx2.rst +++ b/doc/guides/eventdevs/octeontx2.rst @@ -132,6 +132,16 @@ Runtime Config Options --dev "0002:0e:00.0,tim_rings_lmt=5" +- ``TIM ring control internal parameters`` + + When using multiple TIM rings the ``tim_ring_ctl`` devargs can be used to + control each TIM rings internal parameters uniquely. The following dict + format is expected [ring-chnk_slots-disable_npa-stats_ena]. 0 represents + default values. + For Example:: + + --dev "0002:0e:00.0,tim_ring_ctl=[2-1023-1-0]" + Debugging Options ~~~~~~~~~~~~~~~~~ diff --git a/drivers/event/octeontx2/otx2_tim_evdev.c b/drivers/event/octeontx2/otx2_tim_evdev.c index c18079bfda..ecc7563ce6 100644 --- a/drivers/event/octeontx2/otx2_tim_evdev.c +++ b/drivers/event/octeontx2/otx2_tim_evdev.c @@ -255,7 +255,7 @@ otx2_tim_ring_create(struct rte_event_timer_adapter *adptr) struct tim_lf_alloc_req *req; struct tim_lf_alloc_rsp *rsp; uint64_t nb_timers; - int rc; + int i, rc; if (dev == NULL) return -ENODEV; @@ -304,6 +304,18 @@ otx2_tim_ring_create(struct rte_event_timer_adapter *adptr) tim_ring->disable_npa = dev->disable_npa; tim_ring->enable_stats = dev->enable_stats; + for (i = 0; i < dev->ring_ctl_cnt ; i++) { + struct otx2_tim_ctl *ring_ctl = &dev->ring_ctl_data[i]; + + if (ring_ctl->ring == tim_ring->ring_id) { + tim_ring->chunk_sz = ring_ctl->chunk_slots ? + ((uint32_t)(ring_ctl->chunk_slots + 1) * + OTX2_TIM_CHUNK_ALIGNMENT) : tim_ring->chunk_sz; + tim_ring->enable_stats = ring_ctl->enable_stats; + tim_ring->disable_npa = ring_ctl->disable_npa; + } + } + tim_ring->nb_chunks = nb_timers / OTX2_TIM_NB_CHUNK_SLOTS( tim_ring->chunk_sz); tim_ring->nb_chunk_slots = OTX2_TIM_NB_CHUNK_SLOTS(tim_ring->chunk_sz); @@ -529,6 +541,77 @@ otx2_tim_caps_get(const struct rte_eventdev *evdev, uint64_t flags, #define OTX2_TIM_CHNK_SLOTS "tim_chnk_slots" #define OTX2_TIM_STATS_ENA "tim_stats_ena" #define OTX2_TIM_RINGS_LMT "tim_rings_lmt" +#define OTX2_TIM_RING_CTL "tim_ring_ctl" + +static void +tim_parse_ring_param(char *value, void *opaque) +{ + struct otx2_tim_evdev *dev = opaque; + struct otx2_tim_ctl ring_ctl = {0}; + char *tok = strtok(value, "-"); + uint16_t *val; + + val = (uint16_t *)&ring_ctl; + + if (!strlen(value)) + return; + + while (tok != NULL) { + *val = atoi(tok); + tok = strtok(NULL, "-"); + val++; + } + + if (val != (&ring_ctl.enable_stats + 1)) { + otx2_err( + "Invalid ring param expected [ring-chunk_sz-disable_npa-enable_stats]"); + return; + } + + dev->ring_ctl_cnt++; + dev->ring_ctl_data = rte_realloc(dev->ring_ctl_data, + sizeof(struct otx2_tim_ctl), 0); + dev->ring_ctl_data[dev->ring_ctl_cnt - 1] = ring_ctl; +} + +static void +tim_parse_ring_ctl_list(const char *value, void *opaque) +{ + char *s = strdup(value); + char *start = NULL; + char *end = NULL; + char *f = s; + + while (*s) { + if (*s == '[') + start = s; + else if (*s == ']') + end = s; + + if (start < end && *start) { + *end = 0; + tim_parse_ring_param(start + 1, opaque); + start = end; + s = end; + } + s++; + } + + free(f); +} + +static int +tim_parse_kvargs_dict(const char *key, const char *value, void *opaque) +{ + RTE_SET_USED(key); + + /* Dict format [ring-chunk_sz-disable_npa-enable_stats] use '-' as ',' + * isn't allowed. 0 represents default. + */ + tim_parse_ring_ctl_list(value, opaque); + + return 0; +} static void tim_parse_devargs(struct rte_devargs *devargs, struct otx2_tim_evdev *dev) @@ -550,6 +633,8 @@ tim_parse_devargs(struct rte_devargs *devargs, struct otx2_tim_evdev *dev) &dev->enable_stats); rte_kvargs_process(kvlist, OTX2_TIM_RINGS_LMT, &parse_kvargs_value, &dev->min_ring_cnt); + rte_kvargs_process(kvlist, OTX2_TIM_RING_CTL, + &tim_parse_kvargs_dict, &dev); } void diff --git a/drivers/event/octeontx2/otx2_tim_evdev.h b/drivers/event/octeontx2/otx2_tim_evdev.h index 5af724ef9d..eec0189c1c 100644 --- a/drivers/event/octeontx2/otx2_tim_evdev.h +++ b/drivers/event/octeontx2/otx2_tim_evdev.h @@ -111,6 +111,13 @@ struct otx2_tim_ent { uint64_t wqe; } __rte_packed; +struct otx2_tim_ctl { + uint16_t ring; + uint16_t chunk_slots; + uint16_t disable_npa; + uint16_t enable_stats; +}; + struct otx2_tim_evdev { struct rte_pci_device *pci_dev; struct rte_eventdev *event_dev; @@ -123,6 +130,9 @@ struct otx2_tim_evdev { uint16_t chunk_slots; uint16_t min_ring_cnt; uint8_t enable_stats; + uint16_t ring_ctl_cnt; + struct otx2_tim_ctl *ring_ctl_data; + /* HW const */ /* MSIX offsets */ uint16_t tim_msixoff[OTX2_MAX_TIM_RINGS]; };