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* [dpdk-dev] [PATCH v1] raw/ioat: add secondary process support
@ 2020-11-21  2:09 Kumar Amber
  0 siblings, 0 replies; only message in thread
From: Kumar Amber @ 2020-11-21  2:09 UTC (permalink / raw)
  To: dev

add the secondart process support in dsa
and ioat for cbdma

Signed-off-by: Kumar Amber <kumar.amber@intel.com>
---
 drivers/raw/ioat/ioat_common.c | 18 +++++++++++++++---
 drivers/raw/ioat/ioat_rawdev.c | 19 +++++++++++++++----
 2 files changed, 30 insertions(+), 7 deletions(-)

diff --git a/drivers/raw/ioat/ioat_common.c b/drivers/raw/ioat/ioat_common.c
index 142e171bc9..e5a0bac8ab 100644
--- a/drivers/raw/ioat/ioat_common.c
+++ b/drivers/raw/ioat/ioat_common.c
@@ -215,11 +215,23 @@ idxd_rawdev_create(const char *name, struct rte_device *dev,
 		goto cleanup;
 	}
 
+	/*
+	* Check for primary than allocate memory
+	* else return the memory from primary
+	* memzone.
+	*/
 	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);
+	if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
+		mz = rte_memzone_lookup(mz_name);
+		rawdev->dev_private = mz->addr;
+		return 0;
+	}
+	mz = rte_memzone_reserve(mz_name,
+			sizeof(struct rte_ioat_rawdev),
+			dev->numa_node,
+			RTE_MEMZONE_IOVA_CONTIG);
 	if (mz == NULL) {
-		IOAT_PMD_ERR("Unable to reserve memzone for private data\n");
+		IOAT_PMD_ERR("Unable to reserve memzone\n");
 		ret = -ENOMEM;
 		goto cleanup;
 	}
diff --git a/drivers/raw/ioat/ioat_rawdev.c b/drivers/raw/ioat/ioat_rawdev.c
index 2c88b4369f..0fd9ebc60d 100644
--- a/drivers/raw/ioat/ioat_rawdev.c
+++ b/drivers/raw/ioat/ioat_rawdev.c
@@ -165,15 +165,26 @@ ioat_rawdev_create(const char *name, struct rte_pci_device *dev)
 		goto cleanup;
 	}
 
+	/*
+	* Check for primary than allocate memory
+	* else return the memory from primary
+	* memzone.
+	*/
 	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);
+	if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
+		mz = rte_memzone_lookup(mz_name);
+		rawdev->dev_private = mz->addr;
+		return 0;
+	}
+	mz = rte_memzone_reserve(mz_name,
+			sizeof(struct rte_ioat_rawdev),
+			dev->device.numa_node,
+			RTE_MEMZONE_IOVA_CONTIG);
 	if (mz == NULL) {
-		IOAT_PMD_ERR("Unable to reserve memzone for private data\n");
+		IOAT_PMD_ERR("Unable to reserve memzone\n");
 		ret = -ENOMEM;
 		goto cleanup;
 	}
-
 	rawdev->dev_private = mz->addr;
 	rawdev->dev_ops = &ioat_rawdev_ops;
 	rawdev->device = &dev->device;
-- 
2.17.1


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2020-11-21  2:09 [dpdk-dev] [PATCH v1] raw/ioat: add secondary process support Kumar Amber

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