Complete the RX side RSS code: parse the encoded portion of the RX
descriptor to determine the correct hash type. MFC after:1 week
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parent
b78e84d132
commit
6b30e6ae6c
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=277143
@ -1364,6 +1364,63 @@ ixl_rx_discard(struct rx_ring *rxr, int i)
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return;
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}
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#ifdef RSS
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/*
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** i40e_ptype_to_hash: parse the packet type
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** to determine the appropriate hash.
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*/
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static inline int
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ixl_ptype_to_hash(u8 ptype)
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{
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struct i40e_rx_ptype_decoded decoded;
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u8 ex = 0
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decode = decode_rx_desc_ptype(ptype);
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ex = decoded.outer_frag;
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if (!decoded.known)
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return M_HASHTYPE_OPAQUE;
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if (decoded.outer_ip == I40E_RX_PTYPE_OUTER_L2)
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return M_HASHTYPE_OPAQUE;
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/* Note: anything that gets to this point is IP */
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if (decoded.outer_ip_ver == I40E_RX_PTYPE_OUTER_IPV6) {
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switch (decoded.inner_prot) {
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case I40E_RX_PTYPE_INNER_PROT_TCP:
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if (ex)
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return M_HASHTYPE_RSS_TCP_IPV6_EX;
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else
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return M_HASHTYPE_RSS_TCP_IPV6;
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case I40E_RX_PTYPE_INNER_PROT_UDP:
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if (ex)
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return M_HASHTYPE_RSS_UDP_IPV6_EX;
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else
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return M_HASHTYPE_RSS_UDP_IPV6;
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default:
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if (ex)
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return M_HASHTYPE_RSS_IPV6_EX;
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else
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return M_HASHTYPE_RSS_IPV6;
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}
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}
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if (decoded.outer_ip_ver == I40E_RX_PTYPE_OUTER_IPV4) {
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switch (decoded.inner_prot) {
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case I40E_RX_PTYPE_INNER_PROT_TCP:
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return M_HASHTYPE_RSS_TCP_IPV4;
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case I40E_RX_PTYPE_INNER_PROT_UDP:
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if (ex)
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return M_HASHTYPE_RSS_UDP_IPV4_EX;
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else
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return M_HASHTYPE_RSS_UDP_IPV4;
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default:
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return M_HASHTYPE_RSS_IPV4;
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}
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}
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/* We should never get here!! */
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return M_HASHTYPE_OPAQUE;
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}
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#endif /* RSS */
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/*********************************************************************
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*
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@ -1562,10 +1619,13 @@ ixl_rxeof(struct ixl_queue *que, int count)
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if ((ifp->if_capenable & IFCAP_RXCSUM) != 0)
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ixl_rx_checksum(sendmp, status, error, ptype);
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#ifdef RSS
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/* XXX Work in Progress, fix the build for now */
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#endif
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sendmp->m_pkthdr.flowid =
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le32toh(cur->wb.qword0.hi_dword.rss);
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M_HASHTYPE_SET(sendmp, ixl_ptype_to_hash(ptype));
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#else
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sendmp->m_pkthdr.flowid = que->msix;
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M_HASHTYPE_SET(sendmp, M_HASHTYPE_OPAQUE);
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#endif
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}
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next_desc:
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bus_dmamap_sync(rxr->dma.tag, rxr->dma.map,
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