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34d2964554
Fixes issues with RTL8156 2.5G USB adapters
- # ethtool eth1
Settings for eth1:
Supported ports: [ ]
Supported link modes: Not reported
Supported pause frame use: No
Supports auto-negotiation: No
Supported FEC modes: Not reported
Advertised link modes: Not reported
Advertised pause frame use: No
Advertised auto-negotiation: No
Advertised FEC modes: Not reported
Speed: 2500Mb/s
Duplex: Half
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: off
MDI-X: Unknown
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
- #
- r8152: break the loop when the budget is exhausted
- r8152: Block future register access if register access fails
- r8152: Rename RTL8152_UNPLUG to RTL8152_INACCESSIBLE
- r8152: add vendor/device ID pair for D-Link DUB-E250
- r8152: try to use a normal budget
- r8152: set bp in bulk
- r8152: adjust generic_ocp_write function
- r8152: fix the autosuspend doesn't work
- r8152: Add __GFP_NOWARN to big allocations
- r8152: reduce the control transfer of rtl8152_get_version()
- r8152: remove rtl_vendor_mode function
- r8152: avoid to change cfg for all devices
- r8152: add USB device driver for config selection
- r8152: use napi_gro_frags
- cdc_ether: no need to blacklist any r8152 devices
- cdc_ether: add u-blox 0x1313 composition
Build system: x86_64
Build-tested: bcm2711, rockchip, x86/64
Run-tested: bcm2711/RPi4B, rockchip/nanopi r2s, x86/64
Signed-off-by: Marty Jones <mj8263788@gmail.com>
71 lines
2.0 KiB
Diff
71 lines
2.0 KiB
Diff
From 57df0fb9d511f91202114813e90128d65c0589f0 Mon Sep 17 00:00:00 2001
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From: Hayes Wang <hayeswang@realtek.com>
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Date: Wed, 26 Jul 2023 11:08:07 +0800
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Subject: [PATCH] r8152: adjust generic_ocp_write function
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Reduce the control transfer if all bytes of first or the last DWORD are
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written.
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The original method is to split the control transfer into three parts
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(the first DWORD, middle continuous data, and the last DWORD). However,
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they could be combined if whole bytes of the first DWORD or last DWORD
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are written. That is, the first DWORD or the last DWORD could be combined
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with the middle continuous data, if the byte_en is 0xff.
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Signed-off-by: Hayes Wang <hayeswang@realtek.com>
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Link: https://lore.kernel.org/r/20230726030808.9093-418-nic_swsd@realtek.com
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Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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---
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drivers/net/usb/r8152.c | 29 ++++++++++++++++++-----------
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1 file changed, 18 insertions(+), 11 deletions(-)
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--- a/drivers/net/usb/r8152.c
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+++ b/drivers/net/usb/r8152.c
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@@ -1310,16 +1310,24 @@ static int generic_ocp_write(struct r815
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byteen_end = byteen & BYTE_EN_END_MASK;
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byen = byteen_start | (byteen_start << 4);
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- ret = set_registers(tp, index, type | byen, 4, data);
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- if (ret < 0)
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- goto error1;
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-
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- index += 4;
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- data += 4;
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- size -= 4;
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- if (size) {
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+ /* Split the first DWORD if the byte_en is not 0xff */
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+ if (byen != BYTE_EN_DWORD) {
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+ ret = set_registers(tp, index, type | byen, 4, data);
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+ if (ret < 0)
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+ goto error1;
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+
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+ index += 4;
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+ data += 4;
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size -= 4;
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+ }
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+
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+ if (size) {
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+ byen = byteen_end | (byteen_end >> 4);
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+
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+ /* Split the last DWORD if the byte_en is not 0xff */
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+ if (byen != BYTE_EN_DWORD)
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+ size -= 4;
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while (size) {
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if (size > limit) {
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@@ -1346,10 +1354,9 @@ static int generic_ocp_write(struct r815
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}
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}
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- byen = byteen_end | (byteen_end >> 4);
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- ret = set_registers(tp, index, type | byen, 4, data);
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- if (ret < 0)
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- goto error1;
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+ /* Set the last DWORD */
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+ if (byen != BYTE_EN_DWORD)
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+ ret = set_registers(tp, index, type | byen, 4, data);
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}
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error1:
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