From 11e993ce523f2368a49bf27ebe4b59fb235c8227 Mon Sep 17 00:00:00 2001 From: Andrew Rybchenko Date: Thu, 16 Nov 2017 08:04:07 +0000 Subject: [PATCH] net/sfc/base: add description of the PS packets layout Signed-off-by: Andrew Rybchenko --- drivers/net/sfc/base/ef10_rx.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/net/sfc/base/ef10_rx.c b/drivers/net/sfc/base/ef10_rx.c index 53ea054909..69ebc2d97c 100644 --- a/drivers/net/sfc/base/ef10_rx.c +++ b/drivers/net/sfc/base/ef10_rx.c @@ -804,6 +804,16 @@ ef10_rx_qpush_ps_credits( rxq_state->eers_rx_packed_stream_credits = 0; } +/* + * In accordance with SF-112241-TC the received data has the following layout: + * - 8 byte pseudo-header which consist of: + * - 4 byte little-endian timestamp + * - 2 byte little-endian captured length in bytes + * - 2 byte little-endian original packet length in bytes + * - captured packet bytes + * - optional padding to align to 64 bytes boundary + * - 64 bytes scratch space for the host software + */ __checkReturn uint8_t * ef10_rx_qps_packet_info( __in efx_rxq_t *erp, -- 2.20.1