diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-12-27 13:04:52 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-12-27 13:04:52 -0800 |
| commit | e0c38a4d1f196a4b17d2eba36afff8f656a4f1de (patch) | |
| tree | b26a69fabef0160adb127416a9744217700feeb7 /drivers/net/dsa/microchip/ksz_spi.c | |
| parent | 7f9f852c75e7d776b078813586c76a2bc7dca993 (diff) | |
| parent | 90cadbbf341dd5b2df991c33a6bd6341f3a53788 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
1) New ipset extensions for matching on destination MAC addresses, from
Stefano Brivio.
2) Add ipv4 ttl and tos, plus ipv6 flow label and hop limit offloads to
nfp driver. From Stefano Brivio.
3) Implement GRO for plain UDP sockets, from Paolo Abeni.
4) Lots of work from Michał Mirosław to eliminate the VLAN_TAG_PRESENT
bit so that we could support the entire vlan_tci value.
5) Rework the IPSEC policy lookups to better optimize more usecases,
from Florian Westphal.
6) Infrastructure changes eliminating direct manipulation of SKB lists
wherever possible, and to always use the appropriate SKB list
helpers. This work is still ongoing...
7) Lots of PHY driver and state machine improvements and
simplifications, from Heiner Kallweit.
8) Various TSO deferral refinements, from Eric Dumazet.
9) Add ntuple filter support to aquantia driver, from Dmitry Bogdanov.
10) Batch dropping of XDP packets in tuntap, from Jason Wang.
11) Lots of cleanups and improvements to the r8169 driver from Heiner
Kallweit, including support for ->xmit_more. This driver has been
getting some much needed love since he started working on it.
12) Lots of new forwarding selftests from Petr Machata.
13) Enable VXLAN learning in mlxsw driver, from Ido Schimmel.
14) Packed ring support for virtio, from Tiwei Bie.
15) Add new Aquantia AQtion USB driver, from Dmitry Bezrukov.
16) Add XDP support to dpaa2-eth driver, from Ioana Ciocoi Radulescu.
17) Implement coalescing on TCP backlog queue, from Eric Dumazet.
18) Implement carrier change in tun driver, from Nicolas Dichtel.
19) Support msg_zerocopy in UDP, from Willem de Bruijn.
20) Significantly improve garbage collection of neighbor objects when
the table has many PERMANENT entries, from David Ahern.
21) Remove egdev usage from nfp and mlx5, and remove the facility
completely from the tree as it no longer has any users. From Oz
Shlomo and others.
22) Add a NETDEV_PRE_CHANGEADDR so that drivers can veto the change and
therefore abort the operation before the commit phase (which is the
NETDEV_CHANGEADDR event). From Petr Machata.
23) Add indirect call wrappers to avoid retpoline overhead, and use them
in the GRO code paths. From Paolo Abeni.
24) Add support for netlink FDB get operations, from Roopa Prabhu.
25) Support bloom filter in mlxsw driver, from Nir Dotan.
26) Add SKB extension infrastructure. This consolidates the handling of
the auxiliary SKB data used by IPSEC and bridge netfilter, and is
designed to support the needs to MPTCP which could be integrated in
the future.
27) Lots of XDP TX optimizations in mlx5 from Tariq Toukan.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1845 commits)
net: dccp: fix kernel crash on module load
drivers/net: appletalk/cops: remove redundant if statement and mask
bnx2x: Fix NULL pointer dereference in bnx2x_del_all_vlans() on some hw
net/net_namespace: Check the return value of register_pernet_subsys()
net/netlink_compat: Fix a missing check of nla_parse_nested
ieee802154: lowpan_header_create check must check daddr
net/mlx4_core: drop useless LIST_HEAD
mlxsw: spectrum: drop useless LIST_HEAD
net/mlx5e: drop useless LIST_HEAD
iptunnel: Set tun_flags in the iptunnel_metadata_reply from src
net/mlx5e: fix semicolon.cocci warnings
staging: octeon: fix build failure with XFRM enabled
net: Revert recent Spectre-v1 patches.
can: af_can: Fix Spectre v1 vulnerability
packet: validate address length if non-zero
nfc: af_nfc: Fix Spectre v1 vulnerability
phonet: af_phonet: Fix Spectre v1 vulnerability
net: core: Fix Spectre v1 vulnerability
net: minor cleanup in skb_ext_add()
net: drop the unused helper skb_ext_get()
...
Diffstat (limited to 'drivers/net/dsa/microchip/ksz_spi.c')
| -rw-r--r-- | drivers/net/dsa/microchip/ksz_spi.c | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/drivers/net/dsa/microchip/ksz_spi.c b/drivers/net/dsa/microchip/ksz_spi.c deleted file mode 100644 index 8c1778b42701..000000000000 --- a/drivers/net/dsa/microchip/ksz_spi.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - * Microchip KSZ series register access through SPI - * - * Copyright (C) 2017 - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include <asm/unaligned.h> - -#include <linux/delay.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/spi/spi.h> - -#include "ksz_priv.h" - -/* SPI frame opcodes */ -#define KS_SPIOP_RD 3 -#define KS_SPIOP_WR 2 - -#define SPI_ADDR_SHIFT 24 -#define SPI_ADDR_MASK (BIT(SPI_ADDR_SHIFT) - 1) -#define SPI_TURNAROUND_SHIFT 5 - -static int ksz_spi_read_reg(struct spi_device *spi, u32 reg, u8 *val, - unsigned int len) -{ - u32 txbuf; - int ret; - - txbuf = reg & SPI_ADDR_MASK; - txbuf |= KS_SPIOP_RD << SPI_ADDR_SHIFT; - txbuf <<= SPI_TURNAROUND_SHIFT; - txbuf = cpu_to_be32(txbuf); - - ret = spi_write_then_read(spi, &txbuf, 4, val, len); - return ret; -} - -static int ksz_spi_read(struct ksz_device *dev, u32 reg, u8 *data, - unsigned int len) -{ - struct spi_device *spi = dev->priv; - - return ksz_spi_read_reg(spi, reg, data, len); -} - -static int ksz_spi_read8(struct ksz_device *dev, u32 reg, u8 *val) -{ - return ksz_spi_read(dev, reg, val, 1); -} - -static int ksz_spi_read16(struct ksz_device *dev, u32 reg, u16 *val) -{ - int ret = ksz_spi_read(dev, reg, (u8 *)val, 2); - - if (!ret) - *val = be16_to_cpu(*val); - - return ret; -} - -static int ksz_spi_read24(struct ksz_device *dev, u32 reg, u32 *val) -{ - int ret; - - *val = 0; - ret = ksz_spi_read(dev, reg, (u8 *)val, 3); - if (!ret) { - *val = be32_to_cpu(*val); - /* convert to 24bit */ - *val >>= 8; - } - - return ret; -} - -static int ksz_spi_read32(struct ksz_device *dev, u32 reg, u32 *val) -{ - int ret = ksz_spi_read(dev, reg, (u8 *)val, 4); - - if (!ret) - *val = be32_to_cpu(*val); - - return ret; -} - -static int ksz_spi_write_reg(struct spi_device *spi, u32 reg, u8 *val, - unsigned int len) -{ - u32 txbuf; - u8 data[12]; - int i; - - txbuf = reg & SPI_ADDR_MASK; - txbuf |= (KS_SPIOP_WR << SPI_ADDR_SHIFT); - txbuf <<= SPI_TURNAROUND_SHIFT; - txbuf = cpu_to_be32(txbuf); - - data[0] = txbuf & 0xFF; - data[1] = (txbuf & 0xFF00) >> 8; - data[2] = (txbuf & 0xFF0000) >> 16; - data[3] = (txbuf & 0xFF000000) >> 24; - for (i = 0; i < len; i++) - data[i + 4] = val[i]; - - return spi_write(spi, &data, 4 + len); -} - -static int ksz_spi_write8(struct ksz_device *dev, u32 reg, u8 value) -{ - struct spi_device *spi = dev->priv; - - return ksz_spi_write_reg(spi, reg, &value, 1); -} - -static int ksz_spi_write16(struct ksz_device *dev, u32 reg, u16 value) -{ - struct spi_device *spi = dev->priv; - - value = cpu_to_be16(value); - return ksz_spi_write_reg(spi, reg, (u8 *)&value, 2); -} - -static int ksz_spi_write24(struct ksz_device *dev, u32 reg, u32 value) -{ - struct spi_device *spi = dev->priv; - - /* make it to big endian 24bit from MSB */ - value <<= 8; - value = cpu_to_be32(value); - return ksz_spi_write_reg(spi, reg, (u8 *)&value, 3); -} - -static int ksz_spi_write32(struct ksz_device *dev, u32 reg, u32 value) -{ - struct spi_device *spi = dev->priv; - - value = cpu_to_be32(value); - return ksz_spi_write_reg(spi, reg, (u8 *)&value, 4); -} - -static const struct ksz_io_ops ksz_spi_ops = { - .read8 = ksz_spi_read8, - .read16 = ksz_spi_read16, - .read24 = ksz_spi_read24, - .read32 = ksz_spi_read32, - .write8 = ksz_spi_write8, - .write16 = ksz_spi_write16, - .write24 = ksz_spi_write24, - .write32 = ksz_spi_write32, -}; - -static int ksz_spi_probe(struct spi_device *spi) -{ - struct ksz_device *dev; - int ret; - - dev = ksz_switch_alloc(&spi->dev, &ksz_spi_ops, spi); - if (!dev) - return -ENOMEM; - - if (spi->dev.platform_data) - dev->pdata = spi->dev.platform_data; - - ret = ksz_switch_register(dev); - if (ret) - return ret; - - spi_set_drvdata(spi, dev); - - return 0; -} - -static int ksz_spi_remove(struct spi_device *spi) -{ - struct ksz_device *dev = spi_get_drvdata(spi); - - if (dev) - ksz_switch_remove(dev); - - return 0; -} - -static const struct of_device_id ksz_dt_ids[] = { - { .compatible = "microchip,ksz9477" }, - { .compatible = "microchip,ksz9897" }, - {}, -}; -MODULE_DEVICE_TABLE(of, ksz_dt_ids); - -static struct spi_driver ksz_spi_driver = { - .driver = { - .name = "ksz9477-switch", - .owner = THIS_MODULE, - .of_match_table = of_match_ptr(ksz_dt_ids), - }, - .probe = ksz_spi_probe, - .remove = ksz_spi_remove, -}; - -module_spi_driver(ksz_spi_driver); - -MODULE_AUTHOR("Woojung Huh <Woojung.Huh@microchip.com>"); -MODULE_DESCRIPTION("Microchip KSZ Series Switch SPI access Driver"); -MODULE_LICENSE("GPL"); |
