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Date: Fri, 12 Jul 2019 06:43:38 -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 v3 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.
v3: Rebase on latest Linus with net-next merged.
- Reorder the uncontroversial 'Use skb accessors' patches first so you
can apply just those two if you want to hold off on the full
conversion.
- Convert all the users of 'struct skb_frag_struct' to skb_frag_t.
Matthew Wilcox (Oracle) (7):
net: Use skb accessors in network drivers
net: Use skb accessors in network core
net: Increase the size of skb_frag_t
net: Reorder the contents of skb_frag_t
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/crypto/chelsio/chtls/chtls_io.c | 6 ++--
drivers/hsi/clients/ssi_protocol.c | 3 +-
drivers/infiniband/hw/hfi1/vnic_sdma.c | 2 +-
drivers/net/ethernet/3com/3c59x.c | 2 +-
drivers/net/ethernet/agere/et131x.c | 6 ++--
drivers/net/ethernet/amd/xgbe/xgbe-desc.c | 2 +-
drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 2 +-
.../net/ethernet/apm/xgene/xgene_enet_main.c | 3 +-
drivers/net/ethernet/atheros/alx/main.c | 4 +--
.../net/ethernet/atheros/atl1c/atl1c_main.c | 4 +--
.../net/ethernet/atheros/atl1e/atl1e_main.c | 3 +-
drivers/net/ethernet/atheros/atlx/atl1.c | 3 +-
drivers/net/ethernet/broadcom/bgmac.c | 2 +-
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +-
drivers/net/ethernet/brocade/bna/bnad.c | 2 +-
drivers/net/ethernet/calxeda/xgmac.c | 2 +-
.../net/ethernet/cavium/liquidio/lio_main.c | 23 ++++++-------
.../ethernet/cavium/liquidio/lio_vf_main.c | 23 ++++++-------
.../ethernet/cavium/thunder/nicvf_queues.c | 4 +--
drivers/net/ethernet/chelsio/cxgb3/sge.c | 2 +-
drivers/net/ethernet/cortina/gemini.c | 5 ++-
drivers/net/ethernet/emulex/benet/be_main.c | 2 +-
drivers/net/ethernet/freescale/enetc/enetc.c | 2 +-
drivers/net/ethernet/freescale/fec_main.c | 4 +--
drivers/net/ethernet/hisilicon/hix5hd2_gmac.c | 2 +-
drivers/net/ethernet/hisilicon/hns/hns_enet.c | 4 +--
.../net/ethernet/hisilicon/hns3/hns3_enet.c | 8 ++---
drivers/net/ethernet/huawei/hinic/hinic_tx.c | 2 +-
drivers/net/ethernet/ibm/emac/core.c | 2 +-
drivers/net/ethernet/intel/e1000/e1000_main.c | 3 +-
drivers/net/ethernet/intel/e1000e/netdev.c | 3 +-
drivers/net/ethernet/intel/fm10k/fm10k_main.c | 5 +--
drivers/net/ethernet/intel/i40e/i40e_txrx.c | 4 +--
drivers/net/ethernet/intel/i40e/i40e_txrx.h | 2 +-
drivers/net/ethernet/intel/iavf/iavf_txrx.c | 4 +--
drivers/net/ethernet/intel/iavf/iavf_txrx.h | 2 +-
drivers/net/ethernet/intel/ice/ice_txrx.c | 6 ++--
drivers/net/ethernet/intel/igb/igb_main.c | 5 +--
drivers/net/ethernet/intel/igbvf/netdev.c | 2 +-
drivers/net/ethernet/intel/igc/igc_main.c | 5 +--
drivers/net/ethernet/intel/ixgb/ixgb_main.c | 4 +--
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 9 ++---
.../net/ethernet/intel/ixgbevf/ixgbevf_main.c | 2 +-
drivers/net/ethernet/jme.c | 5 ++-
drivers/net/ethernet/marvell/mvneta.c | 4 +--
.../net/ethernet/marvell/mvpp2/mvpp2_main.c | 7 ++--
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 4 +--
drivers/net/ethernet/mellanox/mlx4/en_tx.c | 4 +--
.../net/ethernet/mellanox/mlx5/core/en_tx.c | 2 +-
drivers/net/ethernet/microchip/lan743x_main.c | 5 ++-
.../net/ethernet/myricom/myri10ge/myri10ge.c | 10 +++---
.../ethernet/netronome/nfp/nfp_net_common.c | 6 ++--
.../ethernet/qlogic/netxen/netxen_nic_main.c | 4 +--
.../net/ethernet/qlogic/qlcnic/qlcnic_io.c | 2 +-
drivers/net/ethernet/qualcomm/emac/emac-mac.c | 12 +++----
.../net/ethernet/synopsys/dwc-xlgmac-desc.c | 2 +-
.../net/ethernet/synopsys/dwc-xlgmac-net.c | 2 +-
drivers/net/ethernet/tehuti/tehuti.c | 2 +-
drivers/net/usb/usbnet.c | 4 +--
drivers/net/vmxnet3/vmxnet3_drv.c | 7 ++--
drivers/net/wireless/ath/wil6210/debugfs.c | 3 +-
drivers/net/wireless/ath/wil6210/txrx.c | 9 +++--
drivers/net/wireless/ath/wil6210/txrx_edma.c | 2 +-
drivers/net/xen-netback/netback.c | 4 +--
drivers/s390/net/qeth_core_main.c | 2 +-
drivers/scsi/fcoe/fcoe_transport.c | 2 +-
drivers/staging/octeon/ethernet-tx.c | 5 ++-
.../staging/unisys/visornic/visornic_main.c | 4 +--
drivers/target/iscsi/cxgbit/cxgbit_target.c | 13 +++----
include/linux/bvec.h | 5 ++-
include/linux/skbuff.h | 34 ++++++-------------
net/core/skbuff.c | 26 ++++++++------
net/core/tso.c | 8 ++---
net/ipv4/tcp.c | 14 ++++----
net/kcm/kcmsock.c | 8 ++---
net/tls/tls_device.c | 14 ++++----
76 files changed, 202 insertions(+), 220 deletions(-)
--
2.20.1
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