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rawdev: allow devices to skip extra memory allocation

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Some device drivers want to allocate their own private memory, and should
be allowed to do so. Therefore skip memory allocation and associated error
checks if zero-length private memory is requested.

While adjusting the code for new indent level, fix incorrect error
message.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
This commit is contained in:
Bruce Richardson 2019-07-02 15:12:22 +01:00 committed by Thomas Monjalon
parent 85cf6dc3a5
commit a951e147ea
2 changed files with 9 additions and 6 deletions
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11
lib/librte_rawdev/rte_rawdev.c
View File

@ -496,16 +496,17 @@ rte_rawdev_pmd_allocate(const char *name, size_t dev_priv_size, int socket_id)
rawdev = &rte_rawdevs[dev_id];
rawdev->dev_private = rte_zmalloc_socket("rawdev private",
if (dev_priv_size > 0) {
rawdev->dev_private = rte_zmalloc_socket("rawdev private",
dev_priv_size,
RTE_CACHE_LINE_SIZE,
socket_id);
if (!rawdev->dev_private) {
RTE_RDEV_ERR("Unable to allocate memory to Skeleton dev");
return NULL;
if (!rawdev->dev_private) {
RTE_RDEV_ERR("Unable to allocate memory for rawdev");
return NULL;
}
}
rawdev->dev_id = dev_id;
rawdev->socket_id = socket_id;
rawdev->started = 0;

4
lib/librte_rawdev/rte_rawdev_pmd.h
View File

@ -568,7 +568,9 @@ struct rte_rawdev_ops {
* @param name
* Unique identifier name for each device
* @param dev_private_size
* Private data allocated within rte_rawdev object.
* Size of private data memory allocated within rte_rawdev object.
* Set to 0 to disable internal memory allocation and allow for
* self-allocation.
* @param socket_id
* Socket to allocate resources on.
* @return