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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 Subject: [PATCH v11 0/3] AX88796C SPI Ethernet Adapter Date: Mon, 25 Jan 2021 17:54:03 +0100 Message-Id: <20210125165406.9692-1-l.stelmach@samsung.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Organization: Samsung R&D Institute Poland X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrLKsWRmVeSWpSXmKPExsWy7djPc7p7v/MlGPzdI29x/u4hZouNM9az Wsw538JiMf/IOVaLRe9nsFpce3uH1aL/8Wtmi/PnN7BbXNjWx2px89AKRotNj6+xWlzeNYfN Ysb5fUwWh6buZbRYe+Quu8WxBWIWrXuPsDsIely+dpHZY8vKm0weO2fdZffYtKqTzWPzknqP nTs+M3n0bVnF6PF5k1wARxSXTUpqTmZZapG+XQJXxskNv9kLlulW/Dpyjr2BcZlyFyMnh4SA icT3pRuZuhi5OIQEVjBK3GmaCOV8YZSYPvUBE0iVkMBnRomD0/JgOg5faGWEiC9nlNh5MAHC fs4osfShBojNJuAo0b/0BCvIIBGBe8wS69sfMII4zAL7gBruTWEGqRIWMJP4MOcsG4jNIqAq 8a7/K3sXIwcHr4CVxMX7nBDL5CXal28HK+EVEJQ4OfMJC4jNL6AlsabpOpjNDFTTvHU2M8h8 CYHlnBJ3lv1jhGh2kWh4f44ZwhaWeHV8CzuELSPxf+d8JpBdEgL1EpMnmUH09jBKbJvzgwWi xlrizrlfbCA1zAKaEut36UOEHSVmrJjEDNHKJ3HjrSDECXwSk7ZNhwrzSnS0CUFUq0is698D NVBKovfVCkaIEg+JKVOVJjAqzkLy1ywkv8xCWLuAkXkVo3hqaXFuemqxYV5quV5xYm5xaV66 XnJ+7iZGYIo7/e/4px2Mc1991DvEyMTBeIhRgoNZSYR3tx5PghBvSmJlVWpRfnxRaU5q8SFG aQ4WJXHeVbPXxAsJpCeWpGanphakFsFkmTg4pRqYFh95Z68md3nteeMfYe5+2edSlYvTg1S3 FfauL38wLydirdVmpd0ySetn8mxovNhS6PqedUmDqI3lz/6NpfsX+hlNmZi88O3SvasSuXt3 lerpRRT8lvBxYrRa0Ljm4ATV+wxPLWyvhq7f+3OS78sORWfuo651ETGXVOVWXfkQeq66IeDE VYU+hvIkrfo3Pw5q9mXFicZ/c7lxctocn6N5MWLx06SPCzGrGHFePWFocl9i+T6Hk3zHt55Q SW35tnvOPY68/EWZGVbTTK5OP/NZ+UTwtdkWvZoTgldkt0Z6T0sL9qqY57f2bfwmw3Tm8yeF VUqlljMcUzm9+MUK2T8/BGY/9VyS/Pm333JxLdvPSizFGYmGWsxFxYkAb4rrQuADAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrJIsWRmVeSWpSXmKPExsVy+t/xe7p7vvMlGLzqs7E4f/cQs8XGGetZ Leacb2GxmH/kHKvFovczWC2uvb3DatH/+DWzxfnzG9gtLmzrY7W4eWgFo8Wmx9dYLS7vmsNm MeP8PiaLQ1P3MlqsPXKX3eLYAjGL1r1H2B0EPS5fu8jssWXlTSaPnbPusntsWtXJ5rF5Sb3H zh2fmTz6tqxi9Pi8SS6AI0rPpii/tCRVISO/uMRWKdrQwkjP0NJCz8jEUs/Q2DzWyshUSd/O JiU1J7MstUjfLkEv4+SG3+wFy3Qrfh05x97AuEy5i5GTQ0LAROLwhVbGLkYuDiGBpYwS26Ze ZOli5ABKSEmsnJsOUSMs8edaFxtEzVNGiee/vrODJNgEHCX6l55gBUmICLxhlmi695YdxGEW 2Mcosf/oYrAqYQEziQ9zzrKB2CwCqhLv+r+yg2zgFbCSuHifE2KDvET78u1gJbwCghInZz4B O4JZQF1i/TwhkDC/gJbEmqbrLCA2M1B589bZzBMYBWYh6ZiF0DELSdUCRuZVjCKppcW56bnF hnrFibnFpXnpesn5uZsYgXG67djPzTsY5736qHeIkYmD8RCjBAezkgjvbj2eBCHelMTKqtSi /Pii0pzU4kOMpkAPTGSWEk3OByaKvJJ4QzMDU0MTM0sDU0szYyVx3q1z18QLCaQnlqRmp6YW pBbB9DFxcEo1MLmfamY+rtud+OD3eT7jEvmGH9bvNx9f8WRfE9crnol2E9Wiei4/a5i33LNF aGlyTc3KEu2FM8oDD/xPuiIzK0aNq9EpqNtyK+u2OrGLXl0qvWocgVt1Cu6Ze7ySNGVc5bz/ 0L4H0sE6P3fOVOtdcVVTLkDLc+68l98XbZg099cdLfPpWx9dcbx27c7sMzrbBT5/r+4Jjz71 /OTijS/rfJYzFG/tSPVWzA2eG/g7Ve7i36UmCvPk/4nXOM9j8Fm4+LqF+B7vkAc1/yxMhd93 sR5e1/XcnvkUu+t39W72Mpl7DE5c58+sfhiUx8v54PvnfqnYrBPZt8NOPfRRsjdadUDrka2+ 4bGX7eYhT665zlZiKc5INNRiLipOBAA+t0M4XAMAAA== X-CMS-MailID: 20210125165421eucas1p21049ed87217b177c3711c7b5726bd085 X-Msg-Generator: CA X-RootMTR: 20210125165421eucas1p21049ed87217b177c3711c7b5726bd085 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20210125165421eucas1p21049ed87217b177c3711c7b5726bd085 References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210125_115424_947415_3D9E3704 X-CRM114-Status: GOOD ( 25.34 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marek Szyprowski , =?utf-8?q?=C5=81ukasz_Stelm?= =?utf-8?q?ach?= , =?utf-8?q?Bart=C5=82omiej_=C5=BBo?= =?utf-8?q?lnierkiewicz?= Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 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 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 | 1146 +++++++++++++++++ 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, 2287 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