From: Ioana Ciocoi Radulescu Date: Mon, 4 Feb 2019 17:00:37 +0000 (+0000) Subject: dpaa2-eth: Update buffer pool refill threshold X-Git-Tag: v5.4-rc1~1543^2~345^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=20fb0572826b8dca465ad97b0b7eddd78bafb7ae;p=platform%2Fkernel%2Flinux-rpi.git dpaa2-eth: Update buffer pool refill threshold Add more buffers to the Rx buffer pool as soon as 7 of them get consumed, instead of waiting for their number to drop below a fixed threshold. 7 is the number of buffers that can be released in the pool via a single DPIO command. Signed-off-by: Ioana Radulescu Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h index 3e29dec..9510928 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h @@ -53,7 +53,8 @@ */ #define DPAA2_ETH_MAX_FRAMES_PER_QUEUE (DPAA2_ETH_TAILDROP_THRESH / 64) #define DPAA2_ETH_NUM_BUFS (DPAA2_ETH_MAX_FRAMES_PER_QUEUE + 256) -#define DPAA2_ETH_REFILL_THRESH DPAA2_ETH_MAX_FRAMES_PER_QUEUE +#define DPAA2_ETH_REFILL_THRESH \ + (DPAA2_ETH_NUM_BUFS - DPAA2_ETH_BUFS_PER_CMD) /* Maximum number of buffers that can be acquired/released through a single * QBMan command