From: Kumar Amber <kumar.amber@intel.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH v9] raw/ioat: add secondary process support
Date: Fri, 8 Jan 2021 21:38:54 +0530 [thread overview]
Message-ID: <20210108160854.639870-1-kumar.amber@intel.com> (raw)
In-Reply-To: <20210108134456.636211-1-kumar.amber@intel.com>
Add support for secondary processes in ioat devices. The update
allocates a memzone for a primary process or returns it in a
secondary process.
Signed-off-by: Kumar Amber <kumar.amber@intel.com>
---
v5
* add error check for memzone lookup
v6
* fix compilation
v7
* include dev ops for secondary
v8
* fix wrong memzone alloaction
v9
* fix comments
---
drivers/raw/ioat/ioat_common.c | 15 +++++++++++++++
drivers/raw/ioat/ioat_rawdev.c | 15 +++++++++++++++
2 files changed, 30 insertions(+)
diff --git a/drivers/raw/ioat/ioat_common.c b/drivers/raw/ioat/ioat_common.c
index 142e171bc9..a80d304214 100644
--- a/drivers/raw/ioat/ioat_common.c
+++ b/drivers/raw/ioat/ioat_common.c
@@ -215,6 +215,21 @@ idxd_rawdev_create(const char *name, struct rte_device *dev,
goto cleanup;
}
+ /* Allocate memory for the primary process or else return the memory
+ * of primary memzone for the secondary process.
+ */
+ if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
+ mz = rte_memzone_lookup(mz_name);
+ if (mz == NULL) {
+ IOAT_PMD_ERR("Unable lookup memzone for private data\n");
+ ret = -ENOMEM;
+ goto cleanup;
+ }
+ rawdev->dev_private = mz->addr;
+ rawdev->dev_ops = ops;
+ rawdev->device = dev;
+ return 0;
+ }
snprintf(mz_name, sizeof(mz_name), "rawdev%u_private", rawdev->dev_id);
mz = rte_memzone_reserve(mz_name, sizeof(struct idxd_rawdev),
dev->numa_node, RTE_MEMZONE_IOVA_CONTIG);
diff --git a/drivers/raw/ioat/ioat_rawdev.c b/drivers/raw/ioat/ioat_rawdev.c
index 2c88b4369f..21b71b45ed 100644
--- a/drivers/raw/ioat/ioat_rawdev.c
+++ b/drivers/raw/ioat/ioat_rawdev.c
@@ -165,6 +165,21 @@ ioat_rawdev_create(const char *name, struct rte_pci_device *dev)
goto cleanup;
}
+ /* Allocate memory for the primary process or else return the memory
+ * of primary memzone for the secondary process.
+ */
+ if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
+ mz = rte_memzone_lookup(mz_name);
+ if (mz == NULL) {
+ IOAT_PMD_ERR("Unable lookup memzone for private data\n");
+ ret = -ENOMEM;
+ goto cleanup;
+ }
+ rawdev->dev_private = mz->addr;
+ rawdev->dev_ops = &ioat_rawdev_ops;
+ rawdev->device = &dev->device;
+ return 0;
+ }
snprintf(mz_name, sizeof(mz_name), "rawdev%u_private", rawdev->dev_id);
mz = rte_memzone_reserve(mz_name, sizeof(struct rte_ioat_rawdev),
dev->device.numa_node, RTE_MEMZONE_IOVA_CONTIG);
--
2.25.1
next prev parent reply other threads:[~2021-01-08 16:17 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-21 2:09 [dpdk-dev] [PATCH v1] " Kumar Amber
2021-01-04 13:31 ` [dpdk-dev] [PATCH v2] " Kumar Amber
2021-01-04 16:28 ` [dpdk-dev] [PATCH v3] " Kumar Amber
2021-01-04 16:30 ` [dpdk-dev] [PATCH v4] " Kumar Amber
2021-01-06 14:07 ` Bruce Richardson
2021-01-07 4:00 ` [dpdk-dev] [PATCH v5] " Kumar Amber
2021-01-07 5:05 ` [dpdk-dev] [PATCH v6] " Kumar Amber
2021-01-07 12:23 ` [dpdk-dev] [PATCH v7] " Kumar Amber
2021-01-07 12:37 ` Bruce Richardson
2021-01-08 13:44 ` [dpdk-dev] [PATCH v8] " Kumar Amber
2021-01-08 14:03 ` Bruce Richardson
2021-01-08 16:08 ` Kumar Amber [this message]
2021-01-08 16:52 ` [dpdk-dev] [PATCH v9] " Kumar Amber
2021-01-08 17:05 ` Bruce Richardson
2021-01-17 21:53 ` Thomas Monjalon
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