From 2c90eb650cd6e5ba23fa6a5ddb46c03fee80c713 Mon Sep 17 00:00:00 2001 From: Bryan Benson Date: Fri, 8 Nov 2013 19:47:22 +0000 Subject: [PATCH] ixgbe: fix offloading bits when Rx bulk alloc is used This is a fix for the ixgbe hardware offload flags not being set when bulk alloc RX is used. The issue was caused by masking off the bits that store the hardware offload values in the status_error field to retrieve the done bit for the descriptor. Commit 7431041062b9fd0555bac7ca4abebc99e3379fa5 in DPDK-1.3.0 introduced bulk dequeue, which included the bug. Signed-off-by: Bryan Benson Acked-by: Ivan Boule --- lib/librte_pmd_ixgbe/ixgbe_rxtx.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c index 8ca2c66889..a59d68b77b 100644 --- a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c +++ b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c @@ -1040,7 +1040,8 @@ ixgbe_rx_scan_hw_ring(struct igb_rx_queue *rxq) struct igb_rx_entry *rxep; struct rte_mbuf *mb; uint16_t pkt_len; - int s[LOOK_AHEAD], nb_dd; + uint32_t s[LOOK_AHEAD]; + int nb_dd; int i, j, nb_rx = 0; @@ -1063,12 +1064,12 @@ ixgbe_rx_scan_hw_ring(struct igb_rx_queue *rxq) for (j = LOOK_AHEAD-1; j >= 0; --j) s[j] = rxdp[j].wb.upper.status_error; - /* Clear everything but the status bits (LSB) */ - for (j = 0; j < LOOK_AHEAD; ++j) - s[j] &= IXGBE_RXDADV_STAT_DD; + nb_dd = 0; + /* add to nd_dd when the status bit is set (LSB) */ + for (j = 0; j < LOOK_AHEAD; ++j) { + nb_dd += s[j] & IXGBE_RXDADV_STAT_DD; + } - /* Compute how many status bits were set */ - nb_dd = s[0]+s[1]+s[2]+s[3]+s[4]+s[5]+s[6]+s[7]; nb_rx += nb_dd; /* Translate descriptor info to mbuf format */ -- 2.20.1