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baseband/acc100: fix clearing PF IR outside handler

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Clearing of PF info ring outside of handler may cause interrupt to be
missed.
A condition in the ACC100 PMD implementation may cause an interrupt
functional handler call to be missed due to related bit being cleared
when checking PF info ring status.

Fixes: 06531464151 ("baseband/acc100: support interrupt")
Cc: stable@dpdk.org

Signed-off-by: Hernan Vargas <hernan.vargas@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
This commit is contained in:
Hernan Vargas 2022-10-20 22:20:43 -07:00 committed by Akhil Goyal
parent ec1424fffa
commit 935745f56b
1 changed files with 4 additions and 3 deletions
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7
drivers/baseband/acc/rte_acc100_pmd.c
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@ -262,11 +262,12 @@ acc100_check_ir(struct acc_device *acc100_dev)
while (ring_data->valid) {
if ((ring_data->int_nb < ACC100_PF_INT_DMA_DL_DESC_IRQ) || (
ring_data->int_nb >
ACC100_PF_INT_DMA_DL5G_DESC_IRQ))
ACC100_PF_INT_DMA_DL5G_DESC_IRQ)) {
rte_bbdev_log(WARNING, "InfoRing: ITR:%d Info:0x%x",
ring_data->int_nb, ring_data->detailed_info);
/* Initialize Info Ring entry and move forward */
ring_data->val = 0;
/* Initialize Info Ring entry and move forward */
ring_data->val = 0;
}
info_ring_head++;
ring_data = acc100_dev->info_ring +
(info_ring_head & ACC_INFO_RING_MASK);