sfc: Define and set RX buffer flag for packets parsed as TCP
This will be useful for shortcutting some software packet parsing. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
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3ea84c5492
Коммит
d07df8ec08
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@ -243,6 +243,7 @@ struct efx_rx_buffer {
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#define EFX_RX_BUF_LAST_IN_PAGE 0x0001
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#define EFX_RX_PKT_CSUMMED 0x0002
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#define EFX_RX_PKT_DISCARD 0x0004
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#define EFX_RX_PKT_TCP 0x0040
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/**
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* struct efx_rx_page_state - Page-based rx buffer state
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@ -1080,12 +1080,21 @@ efx_handle_rx_event(struct efx_channel *channel, const efx_qword_t *event)
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rx_ev_hdr_type = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_HDR_TYPE);
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if (likely(rx_ev_pkt_ok)) {
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/* If packet is marked as OK and packet type is TCP/IP or
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* UDP/IP, then we can rely on the hardware checksum.
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/* If packet is marked as OK then we can rely on the
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* hardware checksum and classification.
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*/
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flags = (rx_ev_hdr_type == FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_TCP ||
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rx_ev_hdr_type == FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_UDP) ?
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EFX_RX_PKT_CSUMMED : 0;
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flags = 0;
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switch (rx_ev_hdr_type) {
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case FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_TCP:
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flags |= EFX_RX_PKT_TCP;
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/* fall through */
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case FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_UDP:
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flags |= EFX_RX_PKT_CSUMMED;
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/* fall through */
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case FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_OTHER:
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case FSE_AZ_RX_EV_HDR_TYPE_OTHER:
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break;
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}
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} else {
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flags = efx_handle_rx_not_ok(rx_queue, event);
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}
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