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.am...@intel.com>
---
drivers/raw/ioat/ioat_common.c | 17 ++++++++++++++---
drivers/raw/ioat/ioat_rawdev.c | 18 ++++++++++++++----
2 files changed, 28 insertions(+), 7 deletions(-)
diff --git a/drivers/raw/ioat/ioat_common.c b/drivers/raw/ioat/ioat_common.c
index 142e171bc9..baa0e856f6 100644
--- a/drivers/raw/ioat/ioat_common.c
+++ b/drivers/raw/ioat/ioat_common.c
@@ -215,11 +215,22 @@ idxd_rawdev_create(const char *name, struct rte_device
*dev,
goto cleanup;
}
+ /* allocate memory for primary process
+ * else return memory of primary
+ * memzone for secondary process
+ */
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..76ed48d5a0 100644
--- a/drivers/raw/ioat/ioat_rawdev.c
+++ b/drivers/raw/ioat/ioat_rawdev.c
@@ -165,15 +165,25 @@ ioat_rawdev_create(const char *name, struct
rte_pci_device *dev)
goto cleanup;
}
+ /* allocate memory for primary process
+ * else return memory of primary
+ * memzone for secondary process
+ */
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;
--
2.25.1
