Re: [PATCH] [v6] net: emac: emac gigabit ethernet controller driver
From: Rob Herring <robh@kernel.org>
Date: 2016-06-28 20:56:00
Also in:
linux-arm-msm, netdev
On Fri, Jun 24, 2016 at 06:46:48PM -0500, Timur Tabi wrote:
Add supports for ethernet controller HW on Qualcomm Technologies, Inc. SoC. This driver supports the following features: 1) Checksum offload. 2) Interrupt coalescing support. 3) SGMII phy. 4) phylib interface for external phy Based on original work by Niranjana Vishwanathapura [off-list ref] Gilad Avidov [off-list ref] Signed-off-by: Timur Tabi <redacted> --- v6: - Properly ordered local variables - use built-in GEN_MASK instead of BITS_MASK - remove redundant call to emac_rx_mode_set from emac_mac_up - removed emac_rfd structure, use dma_addr_t directly instead - removed emac_mac_speed enun, replaced with macros - removed superfluous phy_stop from emac_mac_down(), which prevented reloading module - add missing netif_napi_del - set the DMA mask v5: - changed author to Timur, added MAINTAINERS entry - use phylib, replacing internal phy code - added support for EMAC internal SGMII v2 - fix ~DIS_INT warning - update DT bindings, including removing unused properties - removed interrupt handler for internal sgmii - removed link status check handler/state (replaced with phylib) - removed periodic timer handler (replaced with phylib) - removed power management code (will be rewritten later) - external phy is now required, not optional - removed redundant EMAC_STATUS_DOWN status flag - removed redundant link status and speed variables - removed redundant status bits (vlan strip, promiscuous, loopback, etc) - removed useless watchdog status - removed command-line parameters - cleaned up probe messages - removed redundant params from emac_sgmii_link_init() - always call netdev_completed_queue() (per review comment) - fix emac_napi_rtx() (per review comment) - removed max_ints loop in interrupt handler - removed redundant mutex around phy read/write calls - added lock for reading emac status (per review comment) - generate random MAC address if it can't be read from firmware - replace EMAC_DMA_ADDR_HI/LO with upper/lower_32_bits - don't test return value from platform_get_resource (per review comment) - use net_warn_ratelimited (per review comment) - don't set the dma masks (will be set by DT or IORT code) - remove unused emac_tx_tpd_ts_save() - removed redundant local MTU variable v4: - add missing ipv6 header file - correct compatible string - fix spacing in emac_reg_write arrays - drop unnecessary cell-index property - remove unsupported DT properties from docs - remove GPIO initialization and update docs v3: - remove most of the memory barriers by using the non xxx_relaxed() api. - remove RSS and WOL support. - correct comments from physical address to dma address. - rearrange structs to make them packed. - replace polling loops with readl_poll_timeout(). - remove unnecessary wrapper functions from phy layer. - add blank line before return statements. - set to null clocks after clk_put(). - use module_platform_driver() and dma_set_mask_and_coherent() - replace long hex bitmasks with BIT() macro. v2: - replace hw bit fields to macros with bitwise operations. - change all iterators to unsized types (int) - some minor code flow improvements. - change return type to void for functions which return value is never used. - replace instance of xxxxl_relaxed() io followed by mb() with a readl()/writel(). .../devicetree/bindings/net/qcom-emac.txt | 63 +
Acked-by: Rob Herring <robh@kernel.org>
MAINTAINERS | 6 + drivers/net/ethernet/qualcomm/Kconfig | 11 + drivers/net/ethernet/qualcomm/Makefile | 2 + drivers/net/ethernet/qualcomm/emac/Makefile | 7 + drivers/net/ethernet/qualcomm/emac/emac-mac.c | 1661 ++++++++++++++++++++ drivers/net/ethernet/qualcomm/emac/emac-mac.h | 271 ++++ drivers/net/ethernet/qualcomm/emac/emac-phy.c | 211 +++ drivers/net/ethernet/qualcomm/emac/emac-phy.h | 32 + drivers/net/ethernet/qualcomm/emac/emac-sgmii.c | 700 +++++++++ drivers/net/ethernet/qualcomm/emac/emac-sgmii.h | 24 + drivers/net/ethernet/qualcomm/emac/emac.c | 809 ++++++++++ drivers/net/ethernet/qualcomm/emac/emac.h | 369 +++++ 13 files changed, 4166 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/qcom-emac.txt create mode 100644 drivers/net/ethernet/qualcomm/emac/Makefile create mode 100644 drivers/net/ethernet/qualcomm/emac/emac-mac.c create mode 100644 drivers/net/ethernet/qualcomm/emac/emac-mac.h create mode 100644 drivers/net/ethernet/qualcomm/emac/emac-phy.c create mode 100644 drivers/net/ethernet/qualcomm/emac/emac-phy.h create mode 100644 drivers/net/ethernet/qualcomm/emac/emac-sgmii.c create mode 100644 drivers/net/ethernet/qualcomm/emac/emac-sgmii.h create mode 100644 drivers/net/ethernet/qualcomm/emac/emac.c create mode 100644 drivers/net/ethernet/qualcomm/emac/emac.h