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Miller" , Jakub Kicinski , Rob Herring , Kukjin Kim , Krzysztof Kozlowski , Russell King , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org Cc: =?UTF-8?q?Bart=C5=82omiej=20=C5=BBolnierkiewicz?= , Marek Szyprowski , =?UTF-8?q?=C5=81ukasz=20Stelmach?= Subject: [PATCH net-next v15 0/3] AX88796C SPI Ethernet Adapter Date: Tue, 27 Jul 2021 11:43:22 +0200 Message-Id: <20210727094325.9189-1-l.stelmach@samsung.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Organization: Samsung R&D Institute Poland Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrIKsWRmVeSWpSXmKPExsWy7djP87pOV/8nGFz/pm5x/u4hZouNM9az Wsw538JiMf/IOVaLRe9nsFpce3uH1aL/8Wtmi/PnN7BbXNjWx2px89AKRotNj6+xWlzeNYfN Ysb5fUwWh6buZbRYe+Quu8WxBWIWrXuPsDsIely+dpHZY8vKm0weO2fdZffYtKqTzWPzknqP nTs+M3n0bVnF6PF5k1wARxSXTUpqTmZZapG+XQJXxpcf+5gKbhpVbFue28B4Ur2LkZNDQsBE 4uKDh6xdjFwcQgIrGCVebJnMBuF8YZRYsb4XyvnMKNG1cC4zTMuBLZ+gWpYzSvxdOY8RwnnO KPHk9gV2kCo2AUeJ/qUnwKpEBO4xS6xvfwBWxSywj1Fi570pYLOEBewlPl44DdbBIqAq0fv+ BRuIzStgJTHr7k82iH3yEu3Lt0PFBSVOznzCAmLzC2hJrGm6DmYzA9U0b53NDLJAQmAxp8Si d6vYIZpdJA48uc4IYQtLvDq+BSouI/F/53ymLkYOILteYvIkM4jeHkaJbXN+sEDUWEvcOfeL DaSGWUBTYv0ufYiwo8Th+dOYIVr5JG68FYQ4gU9i0rbpUGFeiY42IYhqFYl1/XugBkpJ9L5a AXWMh8SxzvfsExgVZyF5bBaSZ2Yh7F3AyLyKUTy1tDg3PbXYOC+1XK84Mbe4NC9dLzk/dxMj MNWd/nf86w7GFa8+6h1iZOJgPMQowcGsJMLrsOJ3ghBvSmJlVWpRfnxRaU5q8SFGaQ4WJXHe XVvXxAsJpCeWpGanphakFsFkmTg4pRqY6v0mSC+yOPnflqVa0/2dg33CIo/1f74lvvt5LHfn Hp+UTad3vdJdaDFdIv7KQi2Z6OT6K8+u/2ANfGh+Pdvup0WKusdSk4tLl5ZYacWbP+K9V9kw 5S973AubNdX1p8+tN485k8M5U4Cv+2ncqWjJtC8mTb8tj7LrKtV+nPgnrovzecvhlsd8vXp3 pH46ychpaUdJKPbqbL18780XBb+0DSJ3s/jb+IW6XpzYaxhjO2HO7CNHvjA4sB7KfHlvB7+N oqe2QYhe/2rrTqlGliOFU8R1eQ6fmfnca9bVDxziL8Lbf1Q83lr91tcl8Fe6XuPNynzX0+sP N0XvifLa8G05Q0mcwErts3H/c82nyoQosRRnJBpqMRcVJwIAzQYlP+QDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrJIsWRmVeSWpSXmKPExsVy+t/xe7pOV/8nGPw+zGJx/u4hZouNM9az Wsw538JiMf/IOVaLRe9nsFpce3uH1aL/8Wtmi/PnN7BbXNjWx2px89AKRotNj6+xWlzeNYfN Ysb5fUwWh6buZbRYe+Quu8WxBWIWrXuPsDsIely+dpHZY8vKm0weO2fdZffYtKqTzWPzknqP nTs+M3n0bVnF6PF5k1wAR5SeTVF+aUmqQkZ+cYmtUrShhZGeoaWFnpGJpZ6hsXmslZGpkr6d TUpqTmZZapG+XYJexpcf+5gKbhpVbFue28B4Ur2LkZNDQsBE4sCWT6xdjFwcQgJLGSUOnP/G 0sXIAZSQklg5Nx2iRljiz7UuNoiap4wS33dPZwVJsAk4SvQvPQHWLCLwhlmi6d5bdhCHWWAf o8T+o4vZQaqEBewlPl44DWazCKhK9L5/wQZi8wpYScy6+5MNYoW8RPvy7VBxQYmTM5+AXcEs oC6xfp4QSJhfQEtiTdN1FhCbGai8eets5gmMArOQdMxC6JiFpGoBI/MqRpHU0uLc9NxiI73i xNzi0rx0veT83E2MwDjdduznlh2MK1991DvEyMTBeIhRgoNZSYTXYcXvBCHelMTKqtSi/Pii 0pzU4kOMpkAfTGSWEk3OByaKvJJ4QzMDU0MTM0sDU0szYyVxXpMja+KFBNITS1KzU1MLUotg +pg4OKUamBImL/Dcsr9h7e+M9V73ErPDNA6Hq54885azVrn26iRnLZ1b8mynXiitWO9wesrc DTq/5vy9y9v+9i+fjb06a8zeUFv5U2eF3rDx+agrL5qke93i3Zv44lvxUYoCDOnLNztLbtK5 VNAbt3iG2h5ppz3v7nvuvfjbcpfD0k1Fb6zNvHV3v2C++qX7UMbh313Nczmq85XU/571yawJ 5P6cpNDpq/7jnO0T+UUFZz6eOHSWZ+Le909L0va989qSErhK3Y7x2et+Ru7/38/4ylyvLfnU cL/Rw1yId0+NRjJP8oep03f3dGVMq63gClmipTXtxgafYzevzhNMCMkz6Hk0QXZOuOVepccC Bj0ep2aUlyqxFGckGmoxFxUnAgB6ZYXHXAMAAA== X-CMS-MailID: 20210727094330eucas1p11f9927c305e4cf4a2d5eda067c7a5a46 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20210727094330eucas1p11f9927c305e4cf4a2d5eda067c7a5a46 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20210727094330eucas1p11f9927c305e4cf4a2d5eda067c7a5a46 References: Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org This is a driver for AX88796C Ethernet Adapter connected in SPI mode as found on ARTIK5 evaluation board. The driver has been ported from a v3.10.9 vendor kernel for ARTIK5 board. Changes in v15: - rebased onto net-next 5.14-rc2 (268ca4129d8d) - added explicit cast of le16_to_cpus() argument to u16* (reported by: kernel test robot ) - removed invalid and superfluous call to u64_stats_init() (reported by: Jakub Kicinski ) Changes in v14: - rebased onto net-next 5.14-rc1 (0d6835ffe50c) Changes in v13: - rebased onto net-next (ebbf5fcb94a7) - minor fix: use u64_stats_update_{begin_irqsave,end_irqrestore} - minor fix: initialize the syncp lock Changes in v12: - rebased to net-next-5.13 - added missing spaces after commas - corrected indentation Changes in v11: - changed stat counters to 64-bit - replaced WARN_ON(!mutex_is_locked()) with lockdep_assert_held() - replaced ax88796c_free_skb_queue() with __skb_queue_purge() - added cancel_work_sync() for ax_work - removed unused fields of struct skb_data - replaced MAX() with max() from minmax.h - rebased to net-next (resend) Changes in v10: - removed unused variable Changes in v9: - used pskb_extend_head() - used ethtool private flags instead of tunables to switch SPI compression - changed - alloc_skb() to netdev_alloc(skb) - __pskb_trim() to pskb_trim() - removed: - chages to skb->truesize - unnecessary casting to short - return f() in a void function - IRQF_SHARED flags - unnecessary memset(0) of kzalloc()ed buffer - unused endiannes detection - unnecessary __packed attribute for some structures - added: - temporary variable in AX_WRITE/READ sequences - missin mutex_unlock() in error paths - axspi_read_reg() returns a constant value in case of an error Changes in v8: - fixed the entry in MAINTAINERS - removed unnecessary netif_err() - changed netif_rx() to netif_rx_ni() for code running in a process context - added explicit type casting for ~BIT() Changes in v7: - removed duplicate code - moved a constant buffer definition away from a header file Changes in v6: - fixed typos in Kconfig - checked argument value in ax88796c_set_tunable - updated tags in commit messages Changes in v5: - coding style (local variable declarations) - added spi0 node in the DT binding example and removed interrupt-parent - removed comp module parameter - added CONFIG_SPI_AX88796C_COMPRESSION option to set the initial state of SPI compression - introduced new ethtool tunable "spi-compression" to controll SPI transfer compression - removed unused fields in struct ax88796c_device - switched from using buffers allocated on stack for SPI transfers to DMA safe ones embedded in struct ax_spi and allocated with kmalloc() Changes in v4: - fixed compilation problems in asix,ax88796c.yaml and in ax88796c_main.c introduced in v3 Changes in v3: - modify vendor-prefixes.yaml in a separate patch - fix several problems in the dt binding - removed unnecessary descriptions and properties - changed the order of entries - fixed problems with missing defines in the example - change (1 << N) to BIT(N), left a few (0 << N) - replace ax88796c_get_link(), ax88796c_get_link_ksettings(), ax88796c_set_link_ksettings(), ax88796c_nway_reset(), ax88796c_set_mac_address() with appropriate kernel functions. - disable PHY auto-polling in MAC and use PHYLIB to track the state of PHY and configure MAC - propagate return values instead of returning constants in several places - add WARN_ON() for unlocked mutex - remove local work queue and use the system_wq - replace phy_connect_direct() with phy_connect() and move devm_register_netdev() to the end of ax88796c_probe() (Unlike phy_connect_direct() phy_connect() does not crash if the network device isn't registered yet.) - remove error messages on ENOMEM - move free_irq() to the end of ax88796c_close() to avoid race condition - implement flow-control Changes in v2: - use phylib - added DT bindings - moved #includes to *.c files - used mutex instead of a semaphore for locking - renamed some constants - added error propagation for several functions - used ethtool for dumping registers - added control over checksum offloading - remove vendor specific PM - removed macaddr module parameter and added support for reading a MAC address from platform data (e.g. DT) - removed dependency on SPI from NET_VENDOR_ASIX - added an entry in the MAINTAINERS file - simplified logging with appropriate netif_* and netdev_* helpers - lots of style fixes Łukasz Stelmach (3): dt-bindings: vendor-prefixes: Add asix prefix dt-bindings: net: Add bindings for AX88796C SPI Ethernet Adapter net: ax88796c: ASIX AX88796C SPI Ethernet Adapter Driver .../bindings/net/asix,ax88796c.yaml | 73 ++ .../devicetree/bindings/vendor-prefixes.yaml | 2 + MAINTAINERS | 6 + drivers/net/ethernet/Kconfig | 1 + drivers/net/ethernet/Makefile | 1 + drivers/net/ethernet/asix/Kconfig | 35 + drivers/net/ethernet/asix/Makefile | 6 + drivers/net/ethernet/asix/ax88796c_ioctl.c | 239 ++++ drivers/net/ethernet/asix/ax88796c_ioctl.h | 26 + drivers/net/ethernet/asix/ax88796c_main.c | 1148 +++++++++++++++++ drivers/net/ethernet/asix/ax88796c_main.h | 568 ++++++++ drivers/net/ethernet/asix/ax88796c_spi.c | 115 ++ drivers/net/ethernet/asix/ax88796c_spi.h | 69 + 13 files changed, 2289 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/asix,ax88796c.yaml create mode 100644 drivers/net/ethernet/asix/Kconfig create mode 100644 drivers/net/ethernet/asix/Makefile create mode 100644 drivers/net/ethernet/asix/ax88796c_ioctl.c create mode 100644 drivers/net/ethernet/asix/ax88796c_ioctl.h create mode 100644 drivers/net/ethernet/asix/ax88796c_main.c create mode 100644 drivers/net/ethernet/asix/ax88796c_main.h create mode 100644 drivers/net/ethernet/asix/ax88796c_spi.c create mode 100644 drivers/net/ethernet/asix/ax88796c_spi.h -- 2.26.2