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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 42/44] event/octeontx2: add devargs to limit timer adapters
Date: Sun, 2 Jun 2019 00:23:52 +0530
Message-ID: <20190601185355.370-43-pbhagavatula@marvell.com> (raw)
In-Reply-To: <20190601185355.370-1-pbhagavatula@marvell.com>

From: Pavan Nikhilesh <pbhagavatula@marvell.com>

Add devargs to limit the max number of TIM rings reserved on probe.
Since, TIM rings are HW resources we can avoid starving other
applications by not grabbing all the rings.
Example:

	--dev "0002:0e:00.0,tim_rings_lmt=2"

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
---
 drivers/event/octeontx2/otx2_tim_evdev.c | 6 +++++-
 drivers/event/octeontx2/otx2_tim_evdev.h | 1 +
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/event/octeontx2/otx2_tim_evdev.c b/drivers/event/octeontx2/otx2_tim_evdev.c
index 2849b8858..c4fd2271e 100644
--- a/drivers/event/octeontx2/otx2_tim_evdev.c
+++ b/drivers/event/octeontx2/otx2_tim_evdev.c
@@ -527,6 +527,7 @@ otx2_tim_caps_get(const struct rte_eventdev *evdev, uint64_t flags,
 #define OTX2_TIM_DISABLE_NPA	"tim_disable_npa"
 #define OTX2_TIM_CHNK_SLOTS	"tim_chnk_slots"
 #define OTX2_TIM_STATS_ENA	"tim_stats_ena"
+#define OTX2_TIM_RINGS_LMT	"tim_rings_lmt"
 
 static void
 tim_parse_devargs(struct rte_devargs *devargs, struct otx2_tim_evdev *dev)
@@ -546,6 +547,8 @@ tim_parse_devargs(struct rte_devargs *devargs, struct otx2_tim_evdev *dev)
 			   &parse_kvargs_value, &dev->chunk_slots);
 	rte_kvargs_process(kvlist, OTX2_TIM_STATS_ENA, &parse_kvargs_flag,
 			   &dev->enable_stats);
+	rte_kvargs_process(kvlist, OTX2_TIM_RINGS_LMT, &parse_kvargs_value,
+			   &dev->min_ring_cnt);
 }
 
 void
@@ -583,7 +586,8 @@ otx2_tim_init(struct rte_pci_device *pci_dev, struct otx2_dev *cmn_dev)
 		goto mz_free;
 	}
 
-	dev->nb_rings = rsrc_cnt->tim;
+	dev->nb_rings = dev->min_ring_cnt ?
+		RTE_MIN(dev->min_ring_cnt, rsrc_cnt->tim) : rsrc_cnt->tim;
 
 	if (!dev->nb_rings) {
 		otx2_tim_dbg("No TIM Logical functions provisioned.");
diff --git a/drivers/event/octeontx2/otx2_tim_evdev.h b/drivers/event/octeontx2/otx2_tim_evdev.h
index 79be046f0..ef3c8b50e 100644
--- a/drivers/event/octeontx2/otx2_tim_evdev.h
+++ b/drivers/event/octeontx2/otx2_tim_evdev.h
@@ -111,6 +111,7 @@ struct otx2_tim_evdev {
 	/* Dev args */
 	uint8_t disable_npa;
 	uint16_t chunk_slots;
+	uint16_t min_ring_cnt;
 	uint8_t enable_stats;
 	/* MSIX offsets */
 	uint16_t tim_msixoff[OTX2_MAX_TIM_RINGS];
-- 
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 ` [dpdk-dev] [PATCH 29/44] event/octeontx2: create and free timer adapter pbhagavatula
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 ` pbhagavatula [this message]
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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