[v5,3/5] raw/ifpga: unregister interrupt in ifpga close function
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Commit Message
There is an API rte_pmd_ifpga_cleanup provided by ifpga driver to
free the software resource used by ifpga card. The function call
of rte_pmd_ifpga_cleanup is list below.
rte_pmd_ifpga_cleanup()
ifpga_rawdev_cleanup()
rte_rawdev_pmd_release()
rte_rawdev_close()
ifpga_rawdev_close()
The interrupts are unregistered in ifpga_rawdev_destroy instead of
ifpga_rawdev_close function, so rte_pmd_ifpga_cleanup cannot free
interrupt resource as expected.
To fix such issue, interrupt unregistration is moved from
ifpga_rawdev_destroy to ifpga_rawdev_close function. The change of
function call of ifpga_rawdev_destroy is as below.
ifpga_rawdev_destroy()
ifpga_unregister_msix_irq() // removed
rte_rawdev_pmd_release()
rte_rawdev_close()
ifpga_rawdev_close()
Fixes: e0a1aafe2af9 ("raw/ifpga: introduce IRQ functions")
Cc: stable@dpdk.org
Signed-off-by: Wei Huang <wei.huang@intel.com>
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
Reviewed-by: Rosen Xu <rosen.xu@intel.com>
---
v2: update commit log with Tianfei's comment
---
v3: update commit log with more explanations about the function call
---
drivers/raw/ifpga/ifpga_rawdev.c | 29 +++++++++++------------------
1 file changed, 11 insertions(+), 18 deletions(-)
@@ -78,6 +78,7 @@ static int set_surprise_link_check_aer(
static int ifpga_pci_find_next_ext_capability(unsigned int fd,
int start, uint32_t cap);
static int ifpga_pci_find_ext_capability(unsigned int fd, uint32_t cap);
+static void fme_interrupt_handler(void *param);
struct ifpga_rawdev *
ifpga_rawdev_get(const struct rte_rawdev *rawdev)
@@ -740,8 +741,9 @@ static int set_surprise_link_check_aer(
{
struct ifpga_rawdev *ifpga_rdev = NULL;
struct opae_adapter *adapter;
+ struct opae_manager *mgr;
char *vdev_name = NULL;
- int i = 0;
+ int i, ret = 0;
if (dev) {
ifpga_rdev = ifpga_rawdev_get(dev);
@@ -756,12 +758,19 @@ static int set_surprise_link_check_aer(
}
adapter = ifpga_rawdev_get_priv(dev);
if (adapter) {
+ mgr = opae_adapter_get_mgr(adapter);
+ if (ifpga_rdev && mgr) {
+ if (ifpga_unregister_msix_irq(ifpga_rdev,
+ IFPGA_FME_IRQ, 0,
+ fme_interrupt_handler, mgr) < 0)
+ ret = -EINVAL;
+ }
opae_adapter_destroy(adapter);
opae_adapter_data_free(adapter->data);
}
}
- return dev ? 0:1;
+ return ret;
}
static int
@@ -1629,9 +1638,6 @@ static int fme_clean_fme_error(struct opae_manager *mgr)
int ret;
struct rte_rawdev *rawdev;
char name[RTE_RAWDEV_NAME_MAX_LEN];
- struct opae_adapter *adapter;
- struct opae_manager *mgr;
- struct ifpga_rawdev *dev;
if (!pci_dev) {
IFPGA_RAWDEV_PMD_ERR("Invalid pci_dev of the device!");
@@ -1651,19 +1657,6 @@ static int fme_clean_fme_error(struct opae_manager *mgr)
IFPGA_RAWDEV_PMD_ERR("Invalid device name (%s)", name);
return -EINVAL;
}
- dev = ifpga_rawdev_get(rawdev);
-
- adapter = ifpga_rawdev_get_priv(rawdev);
- if (!adapter)
- return -ENODEV;
-
- mgr = opae_adapter_get_mgr(adapter);
- if (!mgr)
- return -ENODEV;
-
- if (ifpga_unregister_msix_irq(dev, IFPGA_FME_IRQ, 0,
- fme_interrupt_handler, mgr) < 0)
- return -EINVAL;
/* rte_rawdev_close is called by pmd_release */
ret = rte_rawdev_pmd_release(rawdev);