[dpdk-dev] [PATCH] net/ice: refine RSS configure

Ding, Xuan xuan.ding at intel.com
Tue Mar 30 06:31:24 CEST 2021
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> -----Original Message-----
> From: Zhang, Qi Z <qi.z.zhang at intel.com>
> Sent: Tuesday, March 30, 2021 11:30 AM
> To: Ding, Xuan <xuan.ding at intel.com>; Guo, Jia <jia.guo at intel.com>
> Cc: dev at dpdk.org; Yang, Qiming <qiming.yang at intel.com>; Noonan, Gordon
> <gordon.noonan at intel.com>; Varshney, Shashank1
> <shashank1.varshney at intel.com>
> Subject: RE: [PATCH] net/ice: refine RSS configure
> 
> 
> 
> > -----Original Message-----
> > From: Ding, Xuan <xuan.ding at intel.com>
> > Sent: Tuesday, March 30, 2021 11:00 AM
> > To: Zhang, Qi Z <qi.z.zhang at intel.com>; Guo, Jia <jia.guo at intel.com>
> > Cc: dev at dpdk.org; Yang, Qiming <qiming.yang at intel.com>; Noonan, Gordon
> > <gordon.noonan at intel.com>; Varshney, Shashank1
> > <shashank1.varshney at intel.com>
> > Subject: RE: [PATCH] net/ice: refine RSS configure
> >
> > Hi Qi,
> >
> > Replies inline.
> >
> > > -----Original Message-----
> > > From: Zhang, Qi Z <qi.z.zhang at intel.com>
> > > Sent: Thursday, March 25, 2021 8:43 PM
> > > To: Guo, Jia <jia.guo at intel.com>; Ding, Xuan <xuan.ding at intel.com>
> > > Cc: dev at dpdk.org; Yang, Qiming <qiming.yang at intel.com>; Noonan,
> > Gordon
> > > <gordon.noonan at intel.com>; Varshney, Shashank1
> > > <shashank1.varshney at intel.com>; Zhang, Qi Z <qi.z.zhang at intel.com>
> > > Subject: [PATCH] net/ice: refine RSS configure
> > >
> > > The ICE_RSS_ANY_HEADERS will try to enable outer RSS for non-tunnel
> > > case and inner RSS for tunnel case. This confuse user.
> > >
> > > As we already have ICE_RSS_INNER_HEADER for tunnel case, So, replace
> > > ICE_RSS_ANY_HEADERS with ICE_RSS_OUTER_HEADERS for all exist flow
> > > which only specified the outer pattern.
> > >
> > > To enable inner RSS for any tunnel cases, a separated rule should be
> > > enabled.
> > >
> > > The patch also remove some unncessary condition check for GTPU
> >
> > Here ' unncessary ' is a typo, should be 'unnecessary'.
> >
> > > in base code, as we already can support outer RSS for GTPU.
> > >
> > > Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
> > > ---
> > >  drivers/net/ice/base/ice_flow.c | 14 ------------
> > >  drivers/net/ice/ice_ethdev.c    |  4 ++--
> > >  drivers/net/ice/ice_hash.c      | 38 ++++++++++++++++-----------------
> > >  3 files changed, 21 insertions(+), 35 deletions(-)
> > >
> > > diff --git a/drivers/net/ice/base/ice_flow.c
> > > b/drivers/net/ice/base/ice_flow.c index d123206fc6..bceb257d61 100644
> > > --- a/drivers/net/ice/base/ice_flow.c
> > > +++ b/drivers/net/ice/base/ice_flow.c
> > > @@ -3678,13 +3678,6 @@ ice_add_rss_cfg_sync(struct ice_hw *hw, u16
> > > vsi_handle,  if (status)  goto exit;
> > >
> > > -/* Don't do RSS for GTPU Outer */
> > > -if (segs_cnt == ICE_FLOW_SEG_SINGLE &&
> > > -    segs[segs_cnt - 1].hdrs & ICE_FLOW_SEG_HDR_GTPU) {
> > > -status = ICE_SUCCESS;
> > > -goto exit;
> > > -}
> > > -
> > >  /* Search for a flow profile that has matching headers, hash fields
> > >   * and has the input VSI associated to it. If found, no further
> > >   * operations required and exit.
> > > @@ -3847,13 +3840,6 @@ ice_rem_rss_cfg_sync(struct ice_hw *hw, u16
> > > vsi_handle,  if (status)  goto out;
> > >
> > > -/* Don't do RSS for GTPU Outer */
> > > -if (segs_cnt == ICE_FLOW_SEG_SINGLE &&
> > > -    segs[segs_cnt - 1].hdrs & ICE_FLOW_SEG_HDR_GTPU) {
> > > -status = ICE_SUCCESS;
> > > -goto out;
> > > -}
> > > -
> > >  prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt,
> > > vsi_handle,  ICE_FLOW_FIND_PROF_CHK_FLDS); diff --git
> > > a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c index
> > > 3e85e5f629..4ccf31cb41 100644
> > > --- a/drivers/net/ice/ice_ethdev.c
> > > +++ b/drivers/net/ice/ice_ethdev.c
> > > @@ -2348,7 +2348,7 @@ hash_cfg_reset(struct ice_rss_hash_cfg *cfg)
> > > cfg->hash_flds = 0;  cfg->addl_hdrs = 0;  cfg->symm = 0;
> > > -cfg->hdr_type = ICE_RSS_ANY_HEADERS;
> > > +cfg->hdr_type = ICE_RSS_OUTER_HEADERS;
> > >  }
> > >
> > >  static int
> > > @@ -2833,7 +2833,7 @@ ice_rss_hash_set(struct ice_pf *pf, uint64_t
> > rss_hf)
> > >      __func__, ret);
> > >
> > >  cfg.symm = 0;
> > > -cfg.hdr_type = ICE_RSS_ANY_HEADERS;
> > > +cfg.hdr_type = ICE_RSS_OUTER_HEADERS;
> > >  /* Configure RSS for IPv4 with src/dst addr as input set */  if
> > > (rss_hf & ETH_RSS_IPV4) {  cfg.addl_hdrs = ICE_FLOW_SEG_HDR_IPV4 |
> > > ICE_FLOW_SEG_HDR_IPV_OTHER; diff --git a/drivers/net/ice/ice_hash.c
> > > b/drivers/net/ice/ice_hash.c index 58a0c18d09..7d7e7052da 100644
> > > --- a/drivers/net/ice/ice_hash.c
> > > +++ b/drivers/net/ice/ice_hash.c
> > > @@ -110,7 +110,7 @@ struct ice_rss_hash_cfg ipv4_tmplt = {
> > > ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_IPV4 |
> > > ICE_FLOW_SEG_HDR_IPV_OTHER,  ICE_FLOW_HASH_ETH |
> > ICE_FLOW_HASH_IPV4,
> > > -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -118,7 +118,7 @@ struct ice_rss_hash_cfg ipv4_udp_tmplt = {
> > > ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_IPV4 |
> > > ICE_FLOW_SEG_HDR_IPV_OTHER | ICE_FLOW_SEG_HDR_UDP,
> > ICE_FLOW_HASH_ETH
> > > | ICE_HASH_UDP_IPV4 | ICE_IPV4_PROT, -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -126,7 +126,7 @@ struct ice_rss_hash_cfg ipv4_tcp_tmplt = {
> > > ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_IPV4 |
> > > ICE_FLOW_SEG_HDR_IPV_OTHER | ICE_FLOW_SEG_HDR_TCP,
> > ICE_FLOW_HASH_ETH
> > > | ICE_HASH_TCP_IPV4 | ICE_IPV4_PROT, -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -134,7 +134,7 @@ struct ice_rss_hash_cfg ipv4_sctp_tmplt = {
> > > ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_IPV4 |
> > > ICE_FLOW_SEG_HDR_IPV_OTHER | ICE_FLOW_SEG_HDR_SCTP,
> > ICE_FLOW_HASH_ETH
> > > | ICE_HASH_SCTP_IPV4 | ICE_IPV4_PROT, -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -142,7 +142,7 @@ struct ice_rss_hash_cfg ipv6_tmplt = {
> > > ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_IPV6 |
> > > ICE_FLOW_SEG_HDR_IPV_OTHER,  ICE_FLOW_HASH_ETH |
> > ICE_FLOW_HASH_IPV6,
> > > -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -150,7 +150,7 @@ struct ice_rss_hash_cfg ipv6_udp_tmplt = {
> > > ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_IPV6 |
> > > ICE_FLOW_SEG_HDR_IPV_OTHER | ICE_FLOW_SEG_HDR_UDP,
> > ICE_FLOW_HASH_ETH
> > > | ICE_HASH_UDP_IPV6 | ICE_IPV6_PROT, -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -158,7 +158,7 @@ struct ice_rss_hash_cfg ipv6_tcp_tmplt = {
> > > ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_IPV6 |
> > > ICE_FLOW_SEG_HDR_IPV_OTHER | ICE_FLOW_SEG_HDR_TCP,
> > ICE_FLOW_HASH_ETH
> > > | ICE_HASH_TCP_IPV6 | ICE_IPV6_PROT, -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -166,7 +166,7 @@ struct ice_rss_hash_cfg ipv6_sctp_tmplt = {
> > > ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_IPV6 |
> > > ICE_FLOW_SEG_HDR_IPV_OTHER | ICE_FLOW_SEG_HDR_SCTP,
> > ICE_FLOW_HASH_ETH
> > > | ICE_HASH_SCTP_IPV6 | ICE_IPV6_PROT, -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -262,7 +262,7 @@ struct ice_rss_hash_cfg eth_ipv4_esp_tmplt = {
> > >  ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV_OTHER |
> > > ICE_FLOW_SEG_HDR_ESP,  ICE_FLOW_HASH_ESP_SPI,
> > -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -270,7 +270,7 @@ struct ice_rss_hash_cfg eth_ipv4_udp_esp_tmplt = {
> > >  ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV_OTHER |
> > > ICE_FLOW_SEG_HDR_NAT_T_ESP,  ICE_FLOW_HASH_NAT_T_ESP_SPI,
> > > -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -278,7 +278,7 @@ struct ice_rss_hash_cfg eth_ipv4_ah_tmplt = {
> > >  ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV_OTHER |
> > > ICE_FLOW_SEG_HDR_AH,  ICE_FLOW_HASH_AH_SPI,
> > -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -286,7 +286,7 @@ struct ice_rss_hash_cfg eth_ipv4_l2tpv3_tmplt = {
> > >  ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV_OTHER |
> > > ICE_FLOW_SEG_HDR_L2TPV3,  ICE_FLOW_HASH_L2TPV3_SESS_ID,
> > > -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -294,7 +294,7 @@ struct ice_rss_hash_cfg eth_ipv4_pfcp_tmplt = {
> > >  ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV_OTHER |
> > > ICE_FLOW_SEG_HDR_PFCP_SESSION,  ICE_FLOW_HASH_PFCP_SEID,
> > > -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -302,7 +302,7 @@ struct ice_rss_hash_cfg eth_ipv6_esp_tmplt = {
> > >  ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_IPV_OTHER |
> > > ICE_FLOW_SEG_HDR_ESP,  ICE_FLOW_HASH_ESP_SPI,
> > -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -310,7 +310,7 @@ struct ice_rss_hash_cfg eth_ipv6_udp_esp_tmplt = {
> > >  ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_IPV_OTHER |
> > > ICE_FLOW_SEG_HDR_NAT_T_ESP,  ICE_FLOW_HASH_NAT_T_ESP_SPI,
> > > -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -318,7 +318,7 @@ struct ice_rss_hash_cfg eth_ipv6_ah_tmplt = {
> > >  ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_IPV_OTHER |
> > > ICE_FLOW_SEG_HDR_AH,  ICE_FLOW_HASH_AH_SPI,
> > -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -326,7 +326,7 @@ struct ice_rss_hash_cfg eth_ipv6_l2tpv3_tmplt = {
> > >  ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_IPV_OTHER |
> > > ICE_FLOW_SEG_HDR_L2TPV3,  ICE_FLOW_HASH_L2TPV3_SESS_ID,
> > > -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > @@ -334,14 +334,14 @@ struct ice_rss_hash_cfg eth_ipv6_pfcp_tmplt = {
> > >  ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_IPV_OTHER |
> > > ICE_FLOW_SEG_HDR_PFCP_SESSION,  ICE_FLOW_HASH_PFCP_SEID,
> > > -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > >  struct ice_rss_hash_cfg pppoe_tmplt = {  ICE_FLOW_SEG_HDR_ETH,
> > > ICE_FLOW_HASH_ETH | ICE_FLOW_HASH_PPPOE_SESS_ID,
> > -ICE_RSS_ANY_HEADERS,
> > > +ICE_RSS_OUTER_HEADERS,
> > >  0
> > >  };
> > >
> > > --
> > > 2.26.2
> >
> > Since PPPOE protocol is a encapsulating network protocol.
> > For IP/UDP or IP/TCP cases, is it right to treat it as outer cases?
> > Here are some doubts.
> 
> PPPOE don't have outer l3/l4, it belongs to the same layer with inner l3/l4, for
> single layer, we just take outer header
> Typically , inner header will only be used for gtpu/vxlan/gre
> 
> 
> >
> > Thanks,
> > Xuan
> >
> 

Acked-by: Xuan Ding <xuan.ding at intel.com>

Thanks,
Xuan
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