diff mbox series

event/cnxk: fix incorrect mbuf offset calculation

Message ID 20221025154653.10482-1-pbhagavatula@marvell.com (mailing list archive)
State Superseded, archived
Delegated to: Jerin Jacob
Headers
Series event/cnxk: fix incorrect mbuf offset calculation |

Checks

Context Check Description
ci/checkpatch warning coding style issues
ci/Intel-compilation success Compilation OK
ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-aarch64-unit-testing success Testing PASS
ci/intel-Testing success Testing PASS
ci/iol-aarch64-compile-testing success Testing PASS
ci/iol-x86_64-compile-testing success Testing PASS
ci/iol-x86_64-unit-testing success Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/iol-intel-Functional success Functional Testing PASS

Commit Message

Pavan Nikhilesh Bhagavatula Oct. 25, 2022, 3:46 p.m. UTC 
  From: Pavan Nikhilesh <pbhagavatula@marvell.com>

Fix incorrect mbuf offset calculation when HEADROOM exceeds 128B
while processing event vectors.

Fixes: 7fbbc981d54f("event/cnxk: support vectorized Rx event fast path")

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Change-Id: I1c33c8a5cce29c3ea7eb0411f4e1bedf42053167
---
 drivers/net/cnxk/cn10k_rx.h | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/cnxk/cn10k_rx.h b/drivers/net/cnxk/cn10k_rx.h
index 4e22ceda02..721127dddd 100644
--- a/drivers/net/cnxk/cn10k_rx.h
+++ b/drivers/net/cnxk/cn10k_rx.h
@@ -1203,9 +1203,11 @@  cn10k_nix_recv_pkts_vector(void *args, struct rte_mbuf **mbufs, uint16_t pkts,
 			mbuf23 = vqsubq_u64(mbuf23, data_off);
 		} else {
 			mbuf01 =
-				vsubq_u64(vld1q_u64((uint64_t *)cq0), data_off);
-			mbuf23 = vsubq_u64(vld1q_u64((uint64_t *)(cq0 + 16)),
-					   data_off);
+				vsubq_u64(vld1q_u64((uint64_t *)cq0),
+					  vdupq_n_u64(sizeof(struct rte_mbuf)));
+			mbuf23 =
+				vsubq_u64(vld1q_u64((uint64_t *)(cq0 + 16)),
+					  vdupq_n_u64(sizeof(struct rte_mbuf)));
 		}
 
 		/* Move mbufs to scalar registers for future use */