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From: <pbhagavatula@marvell.com>
To: <jerinj@marvell.com>, Pavan Nikhilesh <pbhagavatula@marvell.com>
Cc: <dev@dpdk.org>
Subject: [dpdk-dev] [PATCH 29/44] event/octeontx2: create and free timer adapter
Date: Sun, 2 Jun 2019 00:23:39 +0530
Message-ID: <20190601185355.370-30-pbhagavatula@marvell.com> (raw)
In-Reply-To: <20190601185355.370-1-pbhagavatula@marvell.com>

From: Pavan Nikhilesh <pbhagavatula@marvell.com>

When the application calls timer adapter create the following is used:
- Allocate a TIM lf based on number of lf's provisioned.
- Verify the config parameters supplied.
- Allocate memory required for
	* Buckets based on min and max timeout supplied.
	* Allocate the chunk pool based on the number of timers.

On Free:
- Free the allocated bucket and chunk memory.
- Free the TIM lf allocated.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
---
 drivers/event/octeontx2/otx2_tim_evdev.c | 259 ++++++++++++++++++++++-
 drivers/event/octeontx2/otx2_tim_evdev.h |  55 +++++
 2 files changed, 313 insertions(+), 1 deletion(-)

diff --git a/drivers/event/octeontx2/otx2_tim_evdev.c b/drivers/event/octeontx2/otx2_tim_evdev.c
index aa470f0ad..27d60954c 100644
--- a/drivers/event/octeontx2/otx2_tim_evdev.c
+++ b/drivers/event/octeontx2/otx2_tim_evdev.c
@@ -2,9 +2,263 @@
  * Copyright(C) 2019 Marvell International Ltd.
  */
 
+#include <rte_malloc.h>
+#include <rte_mbuf_pool_ops.h>
+
 #include "otx2_evdev.h"
 #include "otx2_tim_evdev.h"
 
+static struct rte_event_timer_adapter_ops otx2_tim_ops;
+
+static int
+tim_chnk_pool_create(struct otx2_tim_ring *tim_ring,
+		     struct rte_event_timer_adapter_conf *rcfg)
+{
+	unsigned int cache_sz = (tim_ring->nb_chunks / 1.5);
+	unsigned int mp_flags = 0;
+	char pool_name[25];
+	int rc;
+
+	/* Create chunk pool. */
+	if (rcfg->flags & RTE_EVENT_TIMER_ADAPTER_F_SP_PUT) {
+		mp_flags = MEMPOOL_F_SP_PUT | MEMPOOL_F_SC_GET;
+		otx2_tim_dbg("Using single producer mode");
+		tim_ring->prod_type_sp = true;
+	}
+
+	snprintf(pool_name, sizeof(pool_name), "otx2_tim_chunk_pool%d",
+		 tim_ring->ring_id);
+
+	if (cache_sz > RTE_MEMPOOL_CACHE_MAX_SIZE)
+		cache_sz = RTE_MEMPOOL_CACHE_MAX_SIZE;
+
+	/* NPA need not have cache as free is not visible to SW */
+	tim_ring->chunk_pool = rte_mempool_create_empty(pool_name,
+							tim_ring->nb_chunks,
+							tim_ring->chunk_sz,
+							0, 0, rte_socket_id(),
+							mp_flags);
+
+	if (tim_ring->chunk_pool == NULL) {
+		otx2_err("Unable to create chunkpool.");
+		return -ENOMEM;
+	}
+
+	rc = rte_mempool_set_ops_byname(tim_ring->chunk_pool,
+					rte_mbuf_platform_mempool_ops(), NULL);
+	if (rc < 0) {
+		otx2_err("Unable to set chunkpool ops");
+		goto free;
+	}
+
+	rc = rte_mempool_populate_default(tim_ring->chunk_pool);
+	if (rc < 0) {
+		otx2_err("Unable to set populate chunkpool.");
+		goto free;
+	}
+	tim_ring->aura = npa_lf_aura_handle_to_aura(
+						tim_ring->chunk_pool->pool_id);
+	tim_ring->ena_dfb = 0;
+
+	return 0;
+
+free:
+	rte_mempool_free(tim_ring->chunk_pool);
+	return rc;
+}
+
+static void
+tim_err_desc(int rc)
+{
+	switch (rc) {
+	case TIM_AF_NO_RINGS_LEFT:
+		otx2_err("Unable to allocat new TIM ring.");
+		break;
+	case TIM_AF_INVALID_NPA_PF_FUNC:
+		otx2_err("Invalid NPA pf func.");
+		break;
+	case TIM_AF_INVALID_SSO_PF_FUNC:
+		otx2_err("Invalid SSO pf func.");
+		break;
+	case TIM_AF_RING_STILL_RUNNING:
+		otx2_tim_dbg("Ring busy.");
+		break;
+	case TIM_AF_LF_INVALID:
+		otx2_err("Invalid Ring id.");
+		break;
+	case TIM_AF_CSIZE_NOT_ALIGNED:
+		otx2_err("Chunk size specified needs to be multiple of 16.");
+		break;
+	case TIM_AF_CSIZE_TOO_SMALL:
+		otx2_err("Chunk size too small.");
+		break;
+	case TIM_AF_CSIZE_TOO_BIG:
+		otx2_err("Chunk size too big.");
+		break;
+	case TIM_AF_INTERVAL_TOO_SMALL:
+		otx2_err("Bucket traversal interval too small.");
+		break;
+	case TIM_AF_INVALID_BIG_ENDIAN_VALUE:
+		otx2_err("Invalid Big endian value.");
+		break;
+	case TIM_AF_INVALID_CLOCK_SOURCE:
+		otx2_err("Invalid Clock source specified.");
+		break;
+	case TIM_AF_GPIO_CLK_SRC_NOT_ENABLED:
+		otx2_err("GPIO clock source not enabled.");
+		break;
+	case TIM_AF_INVALID_BSIZE:
+		otx2_err("Invalid bucket size.");
+		break;
+	case TIM_AF_INVALID_ENABLE_PERIODIC:
+		otx2_err("Invalid bucket size.");
+		break;
+	case TIM_AF_INVALID_ENABLE_DONTFREE:
+		otx2_err("Invalid Don't free value.");
+		break;
+	case TIM_AF_ENA_DONTFRE_NSET_PERIODIC:
+		otx2_err("Don't free bit not set when periodic is enabled.");
+		break;
+	case TIM_AF_RING_ALREADY_DISABLED:
+		otx2_err("Ring already stopped");
+		break;
+	default:
+		otx2_err("Unknown Error.");
+	}
+}
+
+static int
+otx2_tim_ring_create(struct rte_event_timer_adapter *adptr)
+{
+	struct rte_event_timer_adapter_conf *rcfg = &adptr->data->conf;
+	struct otx2_tim_evdev *dev = otx2_tim_priv_get();
+	struct otx2_tim_ring *tim_ring;
+	struct tim_config_req *cfg_req;
+	struct tim_ring_req *free_req;
+	struct tim_lf_alloc_req *req;
+	struct tim_lf_alloc_rsp *rsp;
+	uint64_t nb_timers;
+	int rc;
+
+	if (dev == NULL)
+		return -ENODEV;
+
+	if (adptr->data->id >= dev->nb_rings)
+		return -ENODEV;
+
+	req = otx2_mbox_alloc_msg_tim_lf_alloc(dev->mbox);
+	req->npa_pf_func = otx2_npa_pf_func_get();
+	req->sso_pf_func = otx2_sso_pf_func_get();
+	req->ring = adptr->data->id;
+
+	rc = otx2_mbox_process_msg(dev->mbox, (void **)&rsp);
+	if (rc < 0) {
+		tim_err_desc(rc);
+		return -ENODEV;
+	}
+
+	if (NSEC2TICK(RTE_ALIGN_MUL_CEIL(rcfg->timer_tick_ns, 10),
+		      rsp->tenns_clk) < OTX2_TIM_MIN_TMO_TKS) {
+		rc = -ERANGE;
+		goto rng_mem_err;
+	}
+
+	tim_ring = rte_zmalloc("otx2_tim_prv", sizeof(struct otx2_tim_ring), 0);
+	if (tim_ring == NULL) {
+		rc =  -ENOMEM;
+		goto rng_mem_err;
+	}
+
+	adptr->data->adapter_priv = tim_ring;
+
+	tim_ring->tenns_clk_freq = rsp->tenns_clk;
+	tim_ring->clk_src = (int)rcfg->clk_src;
+	tim_ring->ring_id = adptr->data->id;
+	tim_ring->tck_nsec = RTE_ALIGN_MUL_CEIL(rcfg->timer_tick_ns, 10);
+	tim_ring->max_tout = rcfg->max_tmo_ns;
+	tim_ring->nb_bkts = (tim_ring->max_tout / tim_ring->tck_nsec);
+	tim_ring->chunk_sz = OTX2_TIM_RING_DEF_CHNK_SZ;
+	nb_timers = rcfg->nb_timers;
+	tim_ring->nb_chunks = nb_timers / OTX2_TIM_NB_CNK_SLOTS(
+							tim_ring->chunk_sz);
+	tim_ring->nb_chunk_slots = OTX2_TIM_NB_CNK_SLOTS(tim_ring->chunk_sz);
+
+	/* Create buckets. */
+	tim_ring->bkt = rte_zmalloc("otx2_tim_bucket", (tim_ring->nb_bkts) *
+				    sizeof(struct otx2_tim_bkt),
+				    RTE_CACHE_LINE_SIZE);
+	if (tim_ring->bkt == NULL)
+		goto bkt_mem_err;
+
+	rc = tim_chnk_pool_create(tim_ring, rcfg);
+	if (rc < 0)
+		goto chnk_mem_err;
+
+	cfg_req = otx2_mbox_alloc_msg_tim_config_ring(dev->mbox);
+
+	cfg_req->ring = tim_ring->ring_id;
+	cfg_req->bigendian = false;
+	cfg_req->clocksource = tim_ring->clk_src;
+	cfg_req->enableperiodic = false;
+	cfg_req->enabledontfreebuffer = tim_ring->ena_dfb;
+	cfg_req->bucketsize = tim_ring->nb_bkts;
+	cfg_req->chunksize = tim_ring->chunk_sz;
+	cfg_req->interval = NSEC2TICK(tim_ring->tck_nsec,
+				      tim_ring->tenns_clk_freq);
+
+	rc = otx2_mbox_process(dev->mbox);
+	if (rc < 0) {
+		tim_err_desc(rc);
+		goto chnk_mem_err;
+	}
+
+	tim_ring->base = dev->bar2 +
+		(RVU_BLOCK_ADDR_TIM << 20 | tim_ring->ring_id << 12);
+
+	otx2_write64((uint64_t)tim_ring->bkt,
+		     tim_ring->base + TIM_LF_RING_BASE);
+	otx2_write64(tim_ring->aura, tim_ring->base + TIM_LF_RING_AURA);
+
+	return rc;
+
+chnk_mem_err:
+	rte_free(tim_ring->bkt);
+bkt_mem_err:
+	rte_free(tim_ring);
+rng_mem_err:
+	free_req = otx2_mbox_alloc_msg_tim_lf_free(dev->mbox);
+	free_req->ring = adptr->data->id;
+	otx2_mbox_process(dev->mbox);
+	return rc;
+}
+
+static int
+otx2_tim_ring_free(struct rte_event_timer_adapter *adptr)
+{
+	struct otx2_tim_ring *tim_ring = adptr->data->adapter_priv;
+	struct otx2_tim_evdev *dev = otx2_tim_priv_get();
+	struct tim_ring_req *req;
+	int rc;
+
+	if (dev == NULL)
+		return -ENODEV;
+
+	req = otx2_mbox_alloc_msg_tim_lf_free(dev->mbox);
+	req->ring = tim_ring->ring_id;
+
+	rc = otx2_mbox_process(dev->mbox);
+	if (rc < 0) {
+		tim_err_desc(rc);
+		return -EBUSY;
+	}
+
+	rte_free(tim_ring->bkt);
+	rte_mempool_free(tim_ring->chunk_pool);
+	rte_free(adptr->data->adapter_priv);
+
+	return 0;
+}
+
 int
 otx2_tim_caps_get(const struct rte_eventdev *evdev, uint64_t flags,
 		  uint32_t *caps,
@@ -13,13 +267,16 @@ otx2_tim_caps_get(const struct rte_eventdev *evdev, uint64_t flags,
 	struct otx2_tim_evdev *dev = otx2_tim_priv_get();
 
 	RTE_SET_USED(flags);
-	RTE_SET_USED(ops);
 	if (dev == NULL)
 		return -ENODEV;
 
+	otx2_tim_ops.init = otx2_tim_ring_create;
+	otx2_tim_ops.uninit = otx2_tim_ring_free;
+
 	/* Store evdev pointer for later use. */
 	dev->event_dev = (struct rte_eventdev *)(uintptr_t)evdev;
 	*caps = RTE_EVENT_TIMER_ADAPTER_CAP_INTERNAL_PORT;
+	*ops = &otx2_tim_ops;
 
 	return 0;
 }
diff --git a/drivers/event/octeontx2/otx2_tim_evdev.h b/drivers/event/octeontx2/otx2_tim_evdev.h
index c71094c39..4410c3630 100644
--- a/drivers/event/octeontx2/otx2_tim_evdev.h
+++ b/drivers/event/octeontx2/otx2_tim_evdev.h
@@ -6,11 +6,47 @@
 #define __OTX2_TIM_EVDEV_H__
 
 #include <rte_event_timer_adapter.h>
+#include <rte_event_timer_adapter_pmd.h>
 
 #include "otx2_dev.h"
 
 #define OTX2_TIM_EVDEV_NAME otx2_tim_eventdev
 
+#define otx2_tim_func_trace otx2_tim_dbg
+
+#define TIM_LF_RING_AURA		(0x0)
+#define TIM_LF_RING_BASE		(0x130)
+
+#define OTX2_TIM_RING_DEF_CHNK_SZ       (4096)
+#define OTX2_TIM_CHUNK_ALIGNMENT	(16)
+#define OTX2_TIM_NB_CNK_SLOTS(sz)	(((sz) / OTX2_TIM_CHUNK_ALIGNMENT) - 1)
+#define OTX2_TIM_MIN_TMO_TKS		(256)
+
+enum otx2_tim_clk_src {
+	OTX2_TIM_CLK_SRC_10NS = RTE_EVENT_TIMER_ADAPTER_CPU_CLK,
+	OTX2_TIM_CLK_SRC_GPIO = RTE_EVENT_TIMER_ADAPTER_EXT_CLK0,
+	OTX2_TIM_CLK_SRC_GTI  = RTE_EVENT_TIMER_ADAPTER_EXT_CLK1,
+	OTX2_TIM_CLK_SRC_PTP  = RTE_EVENT_TIMER_ADAPTER_EXT_CLK2,
+};
+
+struct otx2_tim_bkt {
+	uint64_t first_chunk;
+	union {
+		uint64_t w1;
+		struct {
+			uint32_t nb_entry;
+			uint8_t sbt:1;
+			uint8_t hbt:1;
+			uint8_t bsk:1;
+			uint8_t rsvd:5;
+			uint8_t lock;
+			int16_t chunk_remainder;
+		};
+	};
+	uint64_t current_chunk;
+	uint64_t pad;
+} __rte_packed __rte_aligned(32);
+
 struct otx2_tim_evdev {
 	struct rte_pci_device *pci_dev;
 	struct rte_eventdev *event_dev;
@@ -19,6 +55,25 @@ struct otx2_tim_evdev {
 	uintptr_t bar2;
 };
 
+struct otx2_tim_ring {
+	uintptr_t base;
+	uint16_t nb_chunk_slots;
+	uint32_t nb_bkts;
+	struct otx2_tim_bkt *bkt;
+	struct rte_mempool *chunk_pool;
+	uint64_t tck_int;
+	uint8_t prod_type_sp;
+	uint8_t ena_dfb;
+	uint16_t ring_id;
+	uint32_t aura;
+	uint64_t tck_nsec;
+	uint64_t max_tout;
+	uint64_t nb_chunks;
+	uint64_t chunk_sz;
+	uint64_t tenns_clk_freq;
+	enum otx2_tim_clk_src clk_src;
+} __rte_cache_aligned;
+
 static inline struct otx2_tim_evdev *
 otx2_tim_priv_get(void)
 {
-- 
2.21.0


  parent reply index

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-01 18:53 [dpdk-dev] [PATCH 00/44] OCTEON TX2 event device driver pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 01/44] event/octeontx2: add build infra and device probe pbhagavatula
2019-06-17  7:50   ` Jerin Jacob Kollanukkaran
2019-06-01 18:53 ` [dpdk-dev] [PATCH 02/44] event/octeontx2: add init and fini for octeontx2 SSO object pbhagavatula
2019-06-17  7:52   ` Jerin Jacob Kollanukkaran
2019-06-01 18:53 ` [dpdk-dev] [PATCH 03/44] event/octeontx2: add device capabilities function pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 04/44] event/octeontx2: add device configure function pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 05/44] event/octeontx2: add event queue config functions pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 06/44] event/octeontx2: allocate event inflight buffers pbhagavatula
2019-06-17  7:56   ` Jerin Jacob Kollanukkaran
2019-06-01 18:53 ` [dpdk-dev] [PATCH 07/44] event/octeontx2: add devargs for inflight buffer count pbhagavatula
2019-06-17  7:58   ` Jerin Jacob Kollanukkaran
2019-06-01 18:53 ` [dpdk-dev] [PATCH 08/44] event/octeontx2: add event port config functions pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 09/44] event/octeontx2: support linking queues to ports pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 10/44] event/octeontx2: support dequeue timeout tick conversion pbhagavatula
2019-06-17  8:01   ` Jerin Jacob Kollanukkaran
2019-06-01 18:53 ` [dpdk-dev] [PATCH 11/44] event/octeontx2: add SSO GWS and GGRP IRQ handlers pbhagavatula
2019-06-17  8:04   ` Jerin Jacob Kollanukkaran
2019-06-01 18:53 ` [dpdk-dev] [PATCH 12/44] event/octeontx2: add register dump functions pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 13/44] event/octeontx2: add xstats support pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 14/44] event/octeontx2: add SSO HW device operations pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 15/44] event/octeontx2: add worker enqueue functions pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 16/44] event/octeontx2: add worker dequeue functions pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 17/44] event/octeontx2: add octeontx2 SSO dual workslot mode pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 18/44] event/octeontx2: add SSO dual GWS HW device operations pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 19/44] event/octeontx2: add worker dual GWS enqueue functions pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 20/44] event/octeontx2: add worker dual GWS dequeue functions pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 21/44] event/octeontx2: add devargs to force legacy mode pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 22/44] event/octeontx2: add device start function pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 23/44] event/octeontx2: add devargs to control SSO GGRP QoS pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 24/44] event/octeontx2: add device stop and close functions pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 25/44] event/octeontx2: add SSO selftest pbhagavatula
2019-06-17  8:18   ` Jerin Jacob Kollanukkaran
2019-06-01 18:53 ` [dpdk-dev] [PATCH 26/44] doc: add Marvell OCTEON TX2 event device documentation pbhagavatula
2019-06-17  8:15   ` Jerin Jacob Kollanukkaran
2019-06-01 18:53 ` [dpdk-dev] [PATCH 27/44] event/octeontx2: add event timer support pbhagavatula
2019-06-17  8:20   ` Jerin Jacob Kollanukkaran
2019-06-01 18:53 ` [dpdk-dev] [PATCH 28/44] event/octeontx2: add timer adapter capabilities pbhagavatula
2019-06-01 18:53 ` pbhagavatula [this message]
2019-06-01 18:53 ` [dpdk-dev] [PATCH 30/44] event/octeontx2: allow TIM to optimize config pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 31/44] event/octeontx2: add devargs to disable NPA pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 32/44] event/octeontx2: add devargs to modify chunk slots pbhagavatula
2019-06-17  8:24   ` Jerin Jacob Kollanukkaran
2019-06-01 18:53 ` [dpdk-dev] [PATCH 33/44] event/octeontx2: add TIM IRQ handlers pbhagavatula
2019-06-17  8:25   ` Jerin Jacob Kollanukkaran
2019-06-01 18:53 ` [dpdk-dev] [PATCH 34/44] event/octeontx2: allow adapters to resize inflight buffers pbhagavatula
2019-06-17  8:27   ` Jerin Jacob Kollanukkaran
2019-06-01 18:53 ` [dpdk-dev] [PATCH 35/44] event/octeontx2: add timer adapter info get function pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 36/44] event/octeontx2: add TIM bucket operations pbhagavatula
2019-06-17  8:31   ` Jerin Jacob Kollanukkaran
2019-06-01 18:53 ` [dpdk-dev] [PATCH 37/44] event/octeontx2: add event timer arm routine pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 38/44] event/octeontx2: add event timer arm timeout burst pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 39/44] event/octeontx2: add event timer cancel function pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 40/44] event/octeontx2: add event timer stats get and reset pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 41/44] event/octeontx2: add even timer adapter start and stop pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 42/44] event/octeontx2: add devargs to limit timer adapters pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 43/44] event/octeontx2: add devargs to control adapter parameters pbhagavatula
2019-06-01 18:53 ` [dpdk-dev] [PATCH 44/44] doc: update Marvell OCTEON TX2 eventdev documentation pbhagavatula

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Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/ public-inbox