netdev - [PATCH v2 0/7] Convert skb_frag_t to bio

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Message-Id: <20190501144457.7942-1-willy@infradead.org>
Date:   Wed,  1 May 2019 07:44:50 -0700
From:   Matthew Wilcox <willy@...radead.org>
To:     davem@...emloft.net
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>, hch@....de,
        netdev@...r.kernel.org
Subject: [PATCH v2 0/7] Convert skb_frag_t to bio_vec

From: "Matthew Wilcox (Oracle)" <willy@...radead.org>

The skb_frag_t and bio_vec are fundamentally the same (page, offset,
length) tuple.  This patch series unifies the two, leaving the
skb_frag_t typedef in place.  This has the immediate advantage that
we already have iov_iter support for bvecs and don't need to add
support for iterating skbuffs.  It enables a long-term plan to use
bvecs more broadly within the kernel and should make network-storage
drivers able to do less work converting between skbuffs and biovecs.

It will consume more memory on 32-bit kernels.  If that proves
problematic, we can look at ways of addressing it.

Matthew Wilcox (Oracle) (7):
  net: Increase the size of skb_frag_t
  net: Reorder the contents of skb_frag_t
  net: Use skb accessors in network drivers
  net: Use skb accessors in network core
  net: Rename skb_frag page to bv_page
  net: Rename skb_frag_t size to bv_len
  net: Convert skb_frag_t to bio_vec

 drivers/hsi/clients/ssi_protocol.c            |  3 +-
 drivers/net/ethernet/3com/3c59x.c             |  2 +-
 drivers/net/ethernet/agere/et131x.c           |  4 +--
 .../net/ethernet/apm/xgene/xgene_enet_main.c  |  3 +-
 drivers/net/ethernet/calxeda/xgmac.c          |  2 +-
 .../net/ethernet/cavium/liquidio/lio_main.c   | 17 +++++-----
 .../ethernet/cavium/liquidio/lio_vf_main.c    | 15 ++++-----
 drivers/net/ethernet/cortina/gemini.c         |  5 ++-
 drivers/net/ethernet/freescale/fec_main.c     |  4 +--
 drivers/net/ethernet/hisilicon/hix5hd2_gmac.c |  2 +-
 drivers/net/ethernet/intel/fm10k/fm10k_main.c |  3 +-
 drivers/net/ethernet/intel/igb/igb_main.c     |  3 +-
 drivers/net/ethernet/intel/igc/igc_main.c     |  3 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |  3 +-
 drivers/net/ethernet/marvell/mvneta.c         |  4 +--
 .../net/ethernet/marvell/mvpp2/mvpp2_main.c   |  7 ++--
 .../net/ethernet/myricom/myri10ge/myri10ge.c  |  2 +-
 drivers/net/ethernet/qualcomm/emac/emac-mac.c |  5 +--
 drivers/net/usb/usbnet.c                      |  2 +-
 drivers/net/wireless/ath/wil6210/txrx.c       |  6 ++--
 drivers/net/wireless/ath/wil6210/txrx_edma.c  |  2 +-
 drivers/net/xen-netback/netback.c             |  4 +--
 drivers/staging/octeon/ethernet-tx.c          |  3 +-
 drivers/target/iscsi/cxgbit/cxgbit_target.c   |  6 ++--
 include/linux/bvec.h                          |  5 ++-
 include/linux/skbuff.h                        | 32 +++++++------------
 net/core/skbuff.c                             | 24 ++++++++------
 net/core/tso.c                                |  8 ++---
 net/ipv4/tcp.c                                | 12 ++++---
 net/kcm/kcmsock.c                             |  8 ++---
 net/tls/tls_device.c                          | 14 ++++----
 31 files changed, 108 insertions(+), 105 deletions(-)

-- 
2.20.1