fjes: fix memleaks in fjes_hw_setup

In fjes_hw_setup, it allocates several memory and delay the deallocation
to the fjes_hw_exit in fjes_probe through the following call chain:

fjes_probe
|-> fjes_hw_init
|-> fjes_hw_setup
|-> fjes_hw_exit

However, when fjes_hw_setup fails, fjes_hw_exit won't be called and thus
all the resources allocated in fjes_hw_setup will be leaked. In this
patch, we free those resources in fjes_hw_setup and prevents such leaks.

Fixes: 2fcbca687702 ("fjes: platform_driver's .probe and .remove routine")
Signed-off-by: Zhipeng Lu <alexious@zju.edu.cn>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240122172445.3841883-1-alexious@zju.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: fjes: constify and use eth_hw_addr_set()

Get it ready for constant netdev->dev_addr.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

remove ioremap_nocache and devm_ioremap_nocache

ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 308

Based on 1 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms and conditions of the gnu general public license
version 2 as published by the free software foundation this program
is distributed in the hope it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not see http www gnu org
licenses the full gnu general public license is included in this
distribution in the file called copying

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 12 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000434.160381502@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

fjes: ethtool -w and -W support for fjes driver

This patch adds implementation of supporting
ethtool -w and -W for fjes driver.

You can enable and disable firmware debug mode by
using ethtool -W, and also retrieve firmware
activity information by using ethtool -w.

This is useful for debugging.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: Add tracepoints in fjes driver

This patch adds tracepoints in fjes driver.
This is useful for debugging purpose.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: Enhance ethtool -S for fjes driver

This patch enhances ethtool -S for fjes driver so that
EP related statistics can be retrieved.

The following statistics can be displayed via ethtool -S:

ep%d_com_regist_buf_exec
ep%d_com_unregist_buf_exec
ep%d_send_intr_rx
ep%d_send_intr_unshare
ep%d_send_intr_zoneupdate
ep%d_recv_intr_rx
ep%d_recv_intr_unshare
ep%d_recv_intr_stop
ep%d_recv_intr_zoneupdate
ep%d_tx_buffer_full
ep%d_tx_dropped_not_shared
ep%d_tx_dropped_ver_mismatch
ep%d_tx_dropped_buf_size_mismatch
ep%d_tx_dropped_vlanid_mismatch

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: Introduce spinlock for rx_status

This patch introduces spinlock of rx_status for
proper excusive control.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: Enhance changing MTU related work

This patch enhances the fjes_change_mtu() method
by introducing new flag named FJES_RX_MTU_CHANGING_DONE
in rx_status. At the same time, default MTU value is
changed into 65510 bytes.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: fix inconsistent indenting

minor change, indenting is one tab out.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: Delete an unnecessary check before the function call "vfree"

The vfree() function performs also input parameter validation.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: fix off-by-one error at fjes_hw_update_zone_task()

Dan Carpenter reported off-by-one error of fjes at
http://www.mail-archive.com/netdev@vger.kernel.org/msg77520.html

Actually this is a bug.
ep_shm_info[epidx].{es_status, zone} should be update
inside for loop.

This patch fixes this bug.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: epstop_task

This patch adds epstop_task.
This task is used to process other receiver's
cancellation request.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: update_zone_task

This patch adds update_zone_task.
Zoning information can be changed by user.
This task is used to monitor if zoning information is
changed or not.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: net_device_ops.ndo_vlan_rx_add/kill_vid

This patch adds net_device_ops.ndo_vlan_rx_add_vid and
net_device_ops.ndo_vlan_rx_kill_vid callback.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: NAPI polling function

This patch adds NAPI polling function and receive related work.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: net_device_ops.ndo_start_xmit

This patch adds net_device_ops.ndo_start_xmit callback,
which is called when sending packets.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: net_device_ops.ndo_open and .ndo_stop

This patch adds net_device_ops.ndo_open and .ndo_stop
callback. These function is called when network device
activation and deactivation.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: buffer address regist/unregistration routine

This patch adds buffer address regist/unregistration routine.

This function is mainly invoked when network device's
activation (open) and deactivation (close)
in order to retist/unregist shared buffer address.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: ES information acquisition routine

This patch adds ES information acquisition routine.
ES information can be retrieved issuing information
request command. ES information includes which
receiver is same zone.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: Hardware cleanup routine

This patch adds hardware cleanup routine to be
invoked at driver's .remove routine.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

fjes: Hardware initialization routine

This patch adds hardware initialization routine to be
invoked at driver's .probe routine.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>