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Message-Id: <20211020182422.362647-1-l.stelmach@samsung.com>
Date: Wed, 20 Oct 2021 20:24:19 +0200
From: Łukasz Stelmach <l.stelmach@...sung.com>
To: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>, Andrew Lunn <andrew@...n.ch>,
jim.cromie@...il.com, Heiner Kallweit <hkallweit1@...il.com>,
Rob Herring <robh+dt@...nel.org>,
Kukjin Kim <kgene@...nel.org>,
Krzysztof Kozlowski <krzk@...nel.org>,
Russell King <linux@...linux.org.uk>, netdev@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org
Cc: Bartłomiej Żolnierkiewicz
<b.zolnierkie@...sung.com>,
Marek Szyprowski <m.szyprowski@...sung.com>,
Łukasz Stelmach <l.stelmach@...sung.com>
Subject: [PATCH net-next v17 0/3] AX88796C SPI Ethernet Adapter
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 v17:
- marked no_regs_list as const
- added myself as MODULE_AUTHOR()
- rearranged locking in ax88796c_close() to prevent race condition in
case ax88796c_work() wakes the queue after trasmission.
Changes in v16:
- rebased onto net-next 5.15-rc2 (7fec4d39198b)
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 <lkp@...el.com>)
- removed invalid and superfluous call to u64_stats_init()
(reported by: Jakub Kicinski <kuba@...nel.org>)
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 control 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 | 1163 +++++++++++++++++
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, 2304 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
--
2.30.2
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