Commit a8ee4dc1 authored by Harini Katakam's avatar Harini Katakam Committed by David S. Miller
Browse files

net: macb: Add separate definition for PPM fraction 



The scaled ppm parameter passed to _adjfine() contains a 16 bit
fraction. This just happens to be the same as SUBNSINCR_SIZE now.
Hence define this separately.

Signed-off-by: default avatarHarini Katakam <harini.katakam@xilinx.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 79293f49

drivers/net/ethernet/cadence/macb.h

+3 −0
Original line number Diff line number Diff line
@@ -834,6 +834,9 @@ struct gem_tx_ts { 
/* limit RX checksum offload to TCP and UDP packets */

#define GEM_RX_CSUM_CHECKED_MASK		2



/* Scaled PPM fraction */

#define PPM_FRACTION	16



/* struct macb_tx_skb - data about an skb which is being transmitted

 * @skb: skb currently being transmitted, only set for the last buffer

 *       of the frame

drivers/net/ethernet/cadence/macb_ptp.c

+1 −1
Original line number Diff line number Diff line
@@ -135,7 +135,7 @@ static int gem_ptp_adjfine(struct ptp_clock_info *ptp, long scaled_ppm) 
	 * (temp / USEC_PER_SEC) + 0.5

	 */

	adj += (USEC_PER_SEC >> 1);

	adj >>= GEM_SUBNSINCR_SIZE; /* remove fractions */

	adj >>= PPM_FRACTION; /* remove fractions */

	adj = div_u64(adj, USEC_PER_SEC);

	adj = neg_adj ? (word - adj) : (word + adj);

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