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rawdev: mark start and stop functions optional

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Not all rawdevs will require a device start/stop function, so rather than
requiring such drivers to provide dummy functions, just set the
started/stopped rawdev flag from the rawdev layer and return success.

Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Nipun Gupta <nipun.gupta@nxp.com>
This commit is contained in:
Bruce Richardson 2020-09-10 15:36:08 +01:00 committed by Thomas Monjalon
parent 13f8e4a27e
commit 8c658761de
1 changed files with 11 additions and 7 deletions
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18
lib/librte_rawdev/rte_rawdev.c
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@ -398,20 +398,21 @@ rte_rawdev_start(uint16_t dev_id)
RTE_RAWDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
dev = &rte_rawdevs[dev_id];
RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
if (dev->started != 0) {
RTE_RDEV_ERR("Device with dev_id=%" PRIu8 "already started",
dev_id);
return 0;
}
if (dev->dev_ops->dev_start == NULL)
goto mark_started;
diag = (*dev->dev_ops->dev_start)(dev);
if (diag == 0)
dev->started = 1;
else
if (diag != 0)
return diag;
mark_started:
dev->started = 1;
return 0;
}
@ -425,15 +426,18 @@ rte_rawdev_stop(uint16_t dev_id)
RTE_RAWDEV_VALID_DEVID_OR_RET(dev_id);
dev = &rte_rawdevs[dev_id];
RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
if (dev->started == 0) {
RTE_RDEV_ERR("Device with dev_id=%" PRIu8 "already stopped",
dev_id);
return;
}
if (dev->dev_ops->dev_stop == NULL)
goto mark_stopped;
(*dev->dev_ops->dev_stop)(dev);
mark_stopped:
dev->started = 0;
}