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

Zhang, Qi Z qi.z.zhang at intel.com
Tue Mar 30 05:29:50 CEST 2021
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> -----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
>
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