Commit Graph

373 Commits

Author SHA1 Message Date
Yufeng Mo f3ccfda193 ethtool: extend coalesce setting uAPI with CQE mode
In order to support more coalesce parameters through netlink,
add two new parameter kernel_coal and extack for .set_coalesce
and .get_coalesce, then some extra info can return to user with
the netlink API.

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-08-24 07:38:29 -07:00
Yunsheng Lin 57f05bc2ab page_pool: keep pp info as long as page pool owns the page
Currently, page->pp is cleared and set everytime the page
is recycled, which is unnecessary.

So only set the page->pp when the page is added to the page
pool and only clear it when the page is released from the
page pool.

This is also a preparation to support allocating frag page
in page pool.

Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-08-09 15:49:00 -07:00
Grygorii Strashko 1f88d5d566 net: ethernet: ti: cpsw: switch to use skb_put_padto()
Use skb_put_padto() instead of skb_padto() so skb->len also got updated, as
preparation for further removing frame padding from cpdma.
It also makes xmit path more clear and linear.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-06 10:26:46 +01:00
Arnd Bergmann a76053707d dev_ioctl: split out ndo_eth_ioctl
Most users of ndo_do_ioctl are ethernet drivers that implement
the MII commands SIOCGMIIPHY/SIOCGMIIREG/SIOCSMIIREG, or hardware
timestamping with SIOCSHWTSTAMP/SIOCGHWTSTAMP.

Separate these from the few drivers that use ndo_do_ioctl to
implement SIOCBOND, SIOCBR and SIOCWANDEV commands.

This is a purely cosmetic change intended to help readers find
their way through the implementation.

Cc: Doug Ledford <dledford@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Vladimir Oltean <olteanv@gmail.com>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-27 20:11:45 +01:00
Lorenzo Bianconi a078d981f8 net: ti: add pp skb recycling support
As already done for mvneta and mvpp2, enable skb recycling for ti
ethernet drivers

ti driver on net-next:
----------------------
[perf top]
 47.15%  [kernel]     [k] _raw_spin_unlock_irqrestore
 11.77%  [kernel]     [k] __cpdma_chan_free
  3.16%  [kernel]     [k] ___bpf_prog_run
  2.52%  [kernel]     [k] cpsw_rx_vlan_encap
  2.34%  [kernel]     [k] __netif_receive_skb_core
  2.27%  [kernel]     [k] free_unref_page
  2.26%  [kernel]     [k] kmem_cache_free
  2.24%  [kernel]     [k] kmem_cache_alloc
  1.69%  [kernel]     [k] __softirqentry_text_start
  1.61%  [kernel]     [k] cpsw_rx_handler
  1.19%  [kernel]     [k] page_pool_release_page
  1.19%  [kernel]     [k] clear_bits_ll
  1.15%  [kernel]     [k] page_frag_free
  1.06%  [kernel]     [k] __dma_page_dev_to_cpu
  0.99%  [kernel]     [k] memset
  0.94%  [kernel]     [k] __alloc_pages_bulk
  0.92%  [kernel]     [k] kfree_skb
  0.85%  [kernel]     [k] packet_rcv
  0.78%  [kernel]     [k] page_address
  0.75%  [kernel]     [k] v7_dma_inv_range
  0.71%  [kernel]     [k] __lock_text_start

[iperf3 tcp]
[  5]   0.00-10.00  sec   873 MBytes   732 Mbits/sec    0   sender
[  5]   0.00-10.01  sec   866 MBytes   726 Mbits/sec        receiver

ti + skb recycling:
-------------------
[perf top]
 40.58%  [kernel]    [k] _raw_spin_unlock_irqrestore
 16.18%  [kernel]    [k] __softirqentry_text_start
 10.33%  [kernel]    [k] __cpdma_chan_free
  2.62%  [kernel]    [k] ___bpf_prog_run
  2.05%  [kernel]    [k] cpsw_rx_vlan_encap
  2.00%  [kernel]    [k] kmem_cache_alloc
  1.86%  [kernel]    [k] __netif_receive_skb_core
  1.80%  [kernel]    [k] kmem_cache_free
  1.63%  [kernel]    [k] cpsw_rx_handler
  1.12%  [kernel]    [k] cpsw_rx_mq_poll
  1.11%  [kernel]    [k] page_pool_put_page
  1.04%  [kernel]    [k] _raw_spin_unlock
  0.97%  [kernel]    [k] clear_bits_ll
  0.90%  [kernel]    [k] packet_rcv
  0.88%  [kernel]    [k] __dma_page_dev_to_cpu
  0.85%  [kernel]    [k] kfree_skb
  0.80%  [kernel]    [k] memset
  0.71%  [kernel]    [k] __lock_text_start
  0.66%  [kernel]    [k] v7_dma_inv_range
  0.64%  [kernel]    [k] gen_pool_free_owner

[iperf3 tcp]
[  5]   0.00-10.00  sec   884 MBytes   742 Mbits/sec    0   sender
[  5]   0.00-10.01  sec   878 MBytes   735 Mbits/sec        receiver

Tested-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-15 11:50:43 -07:00
Yang Yingliang aced6d37df net: ethernet: ti: cpsw: Use devm_platform_get_and_ioremap_resource()
Use devm_platform_get_and_ioremap_resource() to simplify
code.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-10 13:02:01 -07:00
Michael Walle 83216e3988 of: net: pass the dst buffer to of_get_mac_address()
of_get_mac_address() returns a "const void*" pointer to a MAC address.
Lately, support to fetch the MAC address by an NVMEM provider was added.
But this will only work with platform devices. It will not work with
PCI devices (e.g. of an integrated root complex) and esp. not with DSA
ports.

There is an of_* variant of the nvmem binding which works without
devices. The returned data of a nvmem_cell_read() has to be freed after
use. On the other hand the return of_get_mac_address() points to some
static data without a lifetime. The trick for now, was to allocate a
device resource managed buffer which is then returned. This will only
work if we have an actual device.

Change it, so that the caller of of_get_mac_address() has to supply a
buffer where the MAC address is written to. Unfortunately, this will
touch all drivers which use the of_get_mac_address().

Usually the code looks like:

  const char *addr;
  addr = of_get_mac_address(np);
  if (!IS_ERR(addr))
    ether_addr_copy(ndev->dev_addr, addr);

This can then be simply rewritten as:

  of_get_mac_address(np, ndev->dev_addr);

Sometimes is_valid_ether_addr() is used to test the MAC address.
of_get_mac_address() already makes sure, it just returns a valid MAC
address. Thus we can just test its return code. But we have to be
careful if there are still other sources for the MAC address before the
of_get_mac_address(). In this case we have to keep the
is_valid_ether_addr() call.

The following coccinelle patch was used to convert common cases to the
new style. Afterwards, I've manually gone over the drivers and fixed the
return code variable: either used a new one or if one was already
available use that. Mansour Moufid, thanks for that coccinelle patch!

<spml>
@a@
identifier x;
expression y, z;
@@
- x = of_get_mac_address(y);
+ x = of_get_mac_address(y, z);
  <...
- ether_addr_copy(z, x);
  ...>

@@
identifier a.x;
@@
- if (<+... x ...+>) {}

@@
identifier a.x;
@@
  if (<+... x ...+>) {
      ...
  }
- else {}

@@
identifier a.x;
expression e;
@@
- if (<+... x ...+>@e)
-     {}
- else
+ if (!(e))
      {...}

@@
expression x, y, z;
@@
- x = of_get_mac_address(y, z);
+ of_get_mac_address(y, z);
  ... when != x
</spml>

All drivers, except drivers/net/ethernet/aeroflex/greth.c, were
compile-time tested.

Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-13 14:35:02 -07:00
Lorenzo Bianconi fdc13979f9 bpf, devmap: Move drop error path to devmap for XDP_REDIRECT
We want to change the current ndo_xdp_xmit drop semantics because it will
allow us to implement better queue overflow handling. This is working
towards the larger goal of a XDP TX queue-hook. Move XDP_REDIRECT error
path handling from each XDP ethernet driver to devmap code. According to
the new APIs, the driver running the ndo_xdp_xmit pointer, will break tx
loop whenever the hw reports a tx error and it will just return to devmap
caller the number of successfully transmitted frames. It will be devmap
responsibility to free dropped frames.

Move each XDP ndo_xdp_xmit capable driver to the new APIs:

- veth
- virtio-net
- mvneta
- mvpp2
- socionext
- amazon ena
- bnxt
- freescale (dpaa2, dpaa)
- xen-frontend
- qede
- ice
- igb
- ixgbe
- i40e
- mlx5
- ti (cpsw, cpsw-new)
- tun
- sfc

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Camelia Groza <camelia.groza@nxp.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Shay Agroskin <shayagr@amazon.com>
Link: https://lore.kernel.org/bpf/ed670de24f951cfd77590decf0229a0ad7fd12f6.1615201152.git.lorenzo@kernel.org
2021-03-18 16:38:51 +01:00
Lorenzo Bianconi a8225efdf3 net: ethernet: ti: fix netdevice stats for XDP
Align netdevice statistics when the device is running in XDP mode
to other upstream drivers. In particular report to user-space rx
packets even if they are not forwarded to the networking stack
(XDP_PASS) but if they are redirected (XDP_REDIRECT), dropped (XDP_DROP)
or sent back using the same interface (XDP_TX). This patch allows the
system administrator to verify the device is receiving data correctly.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/a457cb17dd9c58c116d64ee34c354b2e89c0ff8f.1612375372.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-06 10:48:27 -08:00
Lorenzo Bianconi be9df4aff6 net, xdp: Introduce xdp_prepare_buff utility routine
Introduce xdp_prepare_buff utility routine to initialize per-descriptor
xdp_buff fields (e.g. xdp_buff pointers). Rely on xdp_prepare_buff() in
all XDP capable drivers.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Shay Agroskin <shayagr@amazon.com>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Acked-by: Marcin Wojtas <mw@semihalf.com>
Link: https://lore.kernel.org/bpf/45f46f12295972a97da8ca01990b3e71501e9d89.1608670965.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2021-01-08 13:39:24 -08:00
Lorenzo Bianconi 43b5169d83 net, xdp: Introduce xdp_init_buff utility routine
Introduce xdp_init_buff utility routine to initialize xdp_buff fields
const over NAPI iterations (e.g. frame_sz or rxq pointer). Rely on
xdp_init_buff in all XDP capable drivers.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Shay Agroskin <shayagr@amazon.com>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Acked-by: Marcin Wojtas <mw@semihalf.com>
Link: https://lore.kernel.org/bpf/7f8329b6da1434dc2b05a77f2e800b29628a8913.1608670965.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2021-01-08 13:39:24 -08:00
Zhang Changzhong 35f735c665 net: ethernet: ti: cpsw: fix error return code in cpsw_probe()
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 83a8471ba2 ("net: ethernet: ti: cpsw: refactor probe to group common hw initialization")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Link: https://lore.kernel.org/r/1605250173-18438-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-16 15:37:28 -08:00
Grygorii Strashko 2b56687330 net: ethernet: ti: cpsw: fix cpts irq after suspend
Depending on the SoC/platform the CPSW can completely lose context after a
suspend/resume cycle, including CPSW wrapper (WR) which will cause reset of
WR_C0_MISC_EN register, so CPTS IRQ will became disabled.

Fix it by moving CPTS IRQ enabling in cpsw_ndo_open() where CPTS is
actually started.

Fixes: 84ea9c0a95 ("net: ethernet: ti: cpsw: enable cpts irq")
Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20201112111546.20343-1-grygorii.strashko@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-13 14:20:42 -08:00
Jason Yan a78766d937 net: ethernet: ti: cpsw: use true,false for bool variables
This addresses the following coccinelle warning:

drivers/net/ethernet/ti/cpsw.c:1599:2-17: WARNING: Assignment of 0/1 to
bool variable
drivers/net/ethernet/ti/cpsw.c:1300:2-17: WARNING: Assignment of 0/1 to
bool variable

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-19 14:23:14 -07:00
Grygorii Strashko 64922d37a9 net: ethernet: ti: cpsw: use dev_id for ale configuration
The previous patch has introduced possibility to select CPSW ALE by using
ALE dev_id identifier. Switch TI cpsw driver to use dev_id="cpsw" and
perform clean up by removing "ale_entries" configuration code.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-11 17:34:39 -07:00
Murali Karicheri 99d469fc64 net: ethernet: ti: cpsw: fix clean up of vlan mc entries for host port
To flush the vid + mc entries from ALE, which is required when a VLAN
interface is removed, driver needs to call cpsw_ale_flush_multicast()
with ALE_PORT_HOST for port mask as these entries are added only for
host port. Without this, these entries remain in the ALE table even
after removing the VLAN interface. cpsw_ale_flush_multicast() calls
cpsw_ale_flush_mcast which expects a port mask to do the job.

Fixes: 15180eca56 ("net: ethernet: ti: cpsw: fix vlan mcast")
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-25 08:49:37 -07:00
David S. Miller 13209a8f73 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
The MSCC bug fix in 'net' had to be slightly adjusted because the
register accesses are done slightly differently in net-next.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-24 13:47:27 -07:00
Grygorii Strashko 4c64b83d03 net: ethernet: ti: cpsw: fix ASSERT_RTNL() warning during suspend
vlan_for_each() are required to be called with rtnl_lock taken, otherwise
ASSERT_RTNL() warning will be triggered - which happens now during System
resume from suspend:
  cpsw_suspend()
  |- cpsw_ndo_stop()
    |- __hw_addr_ref_unsync_dev()
      |- cpsw_purge_all_mc()
         |- vlan_for_each()
            |- ASSERT_RTNL();

Hence, fix it by surrounding cpsw_ndo_stop() by rtnl_lock/unlock() calls.

Fixes: 15180eca56 ("net: ethernet: ti: cpsw: fix vlan mcast")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-23 16:33:20 -07:00
Jesper Dangaard Brouer c88c35181d net: ethernet: ti: Add XDP frame size to driver cpsw
The driver code cpsw.c and cpsw_new.c both use page_pool
with default order-0 pages or their RX-pages.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Link: https://lore.kernel.org/bpf/158945340875.97035.752144756428532878.stgit@firesoul
2020-05-14 21:21:55 -07:00
Grygorii Strashko 84ea9c0a95 net: ethernet: ti: cpsw: enable cpts irq
The CPSW misc IRQ need be enabled for CPTS event_pend IRQs processing. This
patch adds corresponding support to CPSW driver.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-23 12:50:21 -07:00
Jakub Kicinski 3b6e1a4edf net: cpsw: reject unsupported coalescing params
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver did not previously reject unsupported parameters.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-17 20:56:58 -07:00
Grygorii Strashko c5013ac1dd net: ethernet: ti: cpsw: move set of common functions in cpsw_priv
As a preparatory patch to add support for a switchdev based cpsw driver,
move common functions to cpsw-priv.c so that they can be used across both
drivers.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 11:25:23 -08:00
Grygorii Strashko 51a9533797 net: ethernet: ti: cpsw: resolve build deps of cpsw drivers
A following patches introduce new CPSW switchdev driver which uses common
code with legacy CPSW driver. This will introduce build dependency between
CPSW switchdev and CPSW legacy drivers related to for_each_slave() and
cpsw_slave_index() - they can be compiled both, but only one of them will
be not functional depending in Kconfig settings due to duffrences in Slave
Ports indexes calculation.

To fix this make for_each_slave() local (it's used now only by legacy CPSW
driver) and convert cpsw_slave_index() to be a function pointer which is
assigned in probe. Driver to probe is defined by DT.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 11:25:23 -08:00
Grygorii Strashko 4b41d34367 net: ethernet: ti: cpsw: allow untagged traffic on host port
Now untagged vlan traffic is not support on Host P0 port. This patch adds
in ALE context bitmap of VLANs for which Host P0 port bit set in Force
Untagged Packet Egress bitmask in VLANs ALE entries, and adds corresponding
check in VLAN incapsulation header parsing function cpsw_rx_vlan_encap().

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-20 11:25:23 -08:00
Andrew Lunn 0c65b2b90d net: of_get_phy_mode: Change API to solve int/unit warnings
Before this change of_get_phy_mode() returned an enum,
phy_interface_t. On error, -ENODEV etc, is returned. If the result of
the function is stored in a variable of type phy_interface_t, and the
compiler has decided to represent this as an unsigned int, comparision
with -ENODEV etc, is a signed vs unsigned comparision.

Fix this problem by changing the API. Make the function return an
error, or 0 on success, and pass a pointer, of type phy_interface_t,
where the phy mode should be stored.

v2:
Return with *interface set to PHY_INTERFACE_MODE_NA on error.
Add error checks to all users of of_get_phy_mode()
Fixup a few reverse christmas tree errors
Fixup a few slightly malformed reverse christmas trees

v3:
Fix 0-day reported errors.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-04 11:21:25 -08:00
David S. Miller 68aaf44595 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Minor conflict in r8169, bug fix had two versions in net
and net-next, take the net-next hunks.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-27 14:23:31 -07:00
Antoine Tenart 2d683eaaee net: cpsw: fix NULL pointer exception in the probe error path
In certain cases when the probe function fails the error path calls
cpsw_remove_dt() before calling platform_set_drvdata(). This is an
issue as cpsw_remove_dt() uses platform_get_drvdata() to retrieve the
cpsw_common data and leds to a NULL pointer exception. This patches
fixes it by calling platform_set_drvdata() earlier in the probe.

Fixes: 83a8471ba2 ("net: ethernet: ti: cpsw: refactor probe to group common hw initialization")
Reported-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-21 13:58:15 -07:00
YueHaibing c8ace62ff3 net: ethernet: ti: use devm_platform_ioremap_resource() to simplify code
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-21 13:42:12 -07:00
Nishka Dasgupta 3cd6e20f54 net: ethernet: ti: cpsw: Add of_node_put() before return and break
Each iteration of for_each_available_child_of_node puts the previous
node, but in the case of a return or break from the middle of the loop,
there is no put, thus causing a memory leak.
Hence, for function cpsw_probe_dt, create an extra label err_node_put
that puts the last used node and returns ret; modify the return
statements in the loop to save the return value in ret and goto this new
label.
For function cpsw_remove_dt, add an of_node_put before the break.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-16 12:37:30 -07:00
David S. Miller af144a9834 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Two cases of overlapping changes, nothing fancy.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 19:48:57 -07:00
Ivan Khoronzhuk 9ed4050c0d net: ethernet: ti: cpsw: add XDP support
Add XDP support based on rx page_pool allocator, one frame per page.
Page pool allocator is used with assumption that only one rx_handler
is running simultaneously. DMA map/unmap is reused from page pool
despite there is no need to map whole page.

Due to specific of cpsw, the same TX/RX handler can be used by 2
network devices, so special fields in buffer are added to identify
an interface the frame is destined to. Thus XDP works for both
interfaces, that allows to test xdp redirect between two interfaces
easily. Also, each rx queue have own page pools, but common for both
netdevs.

XDP prog is common for all channels till appropriate changes are added
in XDP infrastructure. Also, once page_pool recycling becomes part of
skb netstack some simplifications can be added, like removing
page_pool_release_page() before skb receive.

In order to keep rx_dev while redirect, that can be somehow used in
future, do flush in rx_handler, that allows to keep rx dev the same
while redirect. It allows to conform with tracing rx_dev pointed
by Jesper.

Also, there is probability, that XDP generic code can be extended to
support multi ndev drivers like this one, using same rx queue for
several ndevs, based on switchdev for instance or else. In this case,
driver can be modified like exposed here:
https://lkml.org/lkml/2019/7/3/243

Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-08 14:58:04 -07:00
Marek Vasut 337d1727a3 net: ethernet: ti: cpsw: Assign OF node to slave devices
Assign OF node to CPSW slave devices, otherwise it is not possible to
bind e.g. DSA switch to them. Without this patch, the DSA code tries
to find the ethernet device by OF match, but fails to do so because
the slave device has NULL OF node.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-28 14:32:51 -07:00
Keerthy 2f9b0d93a9 net: ethernet: ti: cpsw: Fix suspend/resume break
Commit bfe59032bd ("net: ethernet:
ti: cpsw: use cpsw as drv data")changes
the driver data to struct cpsw_common *cpsw. This is done
only in probe/remove but the suspend/resume functions are
still left with struct net_device *ndev. Hence fix both
suspend & resume also to fetch the updated driver data.

Fixes: bfe59032bd ("net: ethernet: ti: cpsw: use cpsw as drv data")
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-24 07:22:55 -07:00
Ivan Khoronzhuk 871e846585 net: ethernet: ti: davinci_cpdma: use idled submit
While data pass suspend, reuse of rx descriptors can be disabled using
channel state & lock from cpdma layer. For this, submit to a channel
has to be disabled using state != "not active" under lock, what is done
with this patch. The same submit is used to fill rx channel while
ndo_open, when channel is idled, so add idled submit routine that
allows to prepare descs for the channel. All this simplifies code and
helps to avoid dormant mode usage and send packets only to active
channels, avoiding potential race in later on changes. Also add missed
sync barrier analogically like in other places after stopping tx
queues.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-16 14:03:25 -07:00
Ivan Khoronzhuk bfe59032bd net: ethernet: ti: cpsw: use cpsw as drv data
No need to set ndev for drvdata when mainly cpsw reference is needed,
so correct this legacy decision.

Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-14 18:43:48 -07:00
Ivan Khoronzhuk 02caceded0 net: ethernet: ti: cpsw: correct .ndo_open error path
It's found while review and probably never happens, but real number
of queues is set per device, and error path should be per device.
So split error path based on usage_count.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-29 21:50:14 -07:00
Petr Štetiar 2d2924af96 net: ethernet: fix similar warning reported by kbuild test robot
This patch fixes following (similar) warning reported by kbuild test robot:

 In function ‘memcpy’,
  inlined from ‘smsc75xx_init_mac_address’ at drivers/net/usb/smsc75xx.c:778:3,
  inlined from ‘smsc75xx_bind’ at drivers/net/usb/smsc75xx.c:1501:2:
  ./include/linux/string.h:355:9: warning: argument 2 null where non-null expected [-Wnonnull]
  return __builtin_memcpy(p, q, size);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
  drivers/net/usb/smsc75xx.c: In function ‘smsc75xx_bind’:
  ./include/linux/string.h:355:9: note: in a call to built-in function ‘__builtin_memcpy’

I've replaced the offending memcpy with ether_addr_copy, because I'm
100% sure, that of_get_mac_address can't return NULL as it returns valid
pointer or ERR_PTR encoded value, nothing else.

I'm hesitant to just change IS_ERR into IS_ERR_OR_NULL check, as this
would make the warning disappear also, but it would be confusing to
check for impossible return value just to make a compiler happy.

I'm now changing all occurencies of memcpy to ether_addr_copy after the
of_get_mac_address call, as it's very likely, that we're going to get
similar reports from kbuild test robot in the future.

Fixes: a51645f70f ("net: ethernet: support of_get_mac_address new ERR_PTR error")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-10 15:14:29 -07:00
Petr Štetiar a51645f70f net: ethernet: support of_get_mac_address new ERR_PTR error
There was NVMEM support added to of_get_mac_address, so it could now
return ERR_PTR encoded error values, so we need to adjust all current
users of of_get_mac_address to this new fact.

While at it, remove superfluous is_valid_ether_addr as the MAC address
returned from of_get_mac_address is always valid and checked by
is_valid_ether_addr anyway.

Fixes: d01f449c00 ("of_net: add NVMEM support to of_get_mac_address")
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-07 12:22:47 -07:00
YueHaibing ac97a359b7 net: ethernet: ti: cpsw: Fix inconsistent IS_ERR and PTR_ERR in cpsw_probe()
Fix inconsistent IS_ERR and PTR_ERR in cpsw_probe,
The proper pointer to use is clk instead of mode.

This issue was detected with the help of Coccinelle.

Fixes: 83a8471ba2 ("net: ethernet: ti: cpsw: refactor probe to group common hw initialization")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-01 14:29:35 -04:00
David S. Miller 026cc9c3ee cpsw: Put back cpsw_ndo_poll_controller()
To fix the build.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 20:08:25 -04:00
Grygorii Strashko c24eef283a net: ethernet: ti: cpsw: move ethtool func in separate file
As a preparatory patch to add support for a switchdev based cpsw driver,
move common ethtool functions to separate cpsw-ethtool.c file so that they
can be used across both drivers. It will simplify CPSW driver code
maintenance also.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:11:49 -04:00
Grygorii Strashko cfc08345ec net: ethernet: ti: cpsw: switch to use mac sl api
Switch CPSW driver to use the new MAC SL API.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:11:49 -04:00
Grygorii Strashko e6a8462491 net: ethernet: ti: cpsw: move common hw init code in separate func
move common hw init code in separate function as preparation for adding new
switchdev driver.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:11:49 -04:00
Grygorii Strashko 814b4a67e5 net: ethernet: ti: cpsw: move cpsw definitions in priv header
As a preparatory patch to add a switchdev based cpsw driver move the common
header definitions to cpsw_priv.h. The plan is to develop a new driver on
switchdev driver model and obsolete the current cpsw driver after all
required functions are added to the new driver. This patch allows the same
header file to be re-used on both drivers during the transition period.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:11:49 -04:00
Grygorii Strashko 83a8471ba2 net: ethernet: ti: cpsw: refactor probe to group common hw initialization
Rework probe to group common hw initialization:
- group resources request at the beginning of the probe
- move net device initialization and registration at the end of the probe
- drop cpsw_slave_init
as preparation of refactoring of common hw initialization code to
separate function.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:11:49 -04:00
Grygorii Strashko 06095f34f8 net: ethernet: ti: cpsw: fix allmulti cfg in dual_mac mode
Now CPSW ALE will set/clean Host port bit in Unregistered Multicast Flood
Mask (UNREG_MCAST_FLOOD_MASK) for every VLAN without checking if this port
belongs to VLAN or not when ALLMULTI mode flag is set for nedev. This is
working in non dual_mac mode, but in dual_mac - it causes
enabling/disabling ALLMULTI flag for both ports.

Hence fix it by adding additional parameter to cpsw_ale_set_allmulti() to
specify ALE port number for which ALLMULTI has to be enabled and check if
port belongs to VLAN before modifying UNREG_MCAST_FLOOD_MASK.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:11:49 -04:00
Grygorii Strashko 10ae805477 net: ethernet: ti: cpsw: drop cpsw_tx_packet_submit()
Drop unnecessary wrapper function cpsw_tx_packet_submit() which is used
only in one place.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:11:48 -04:00
Grygorii Strashko d183a9428d net: ethernet: ti: cpsw: use devm_alloc_etherdev_mqs()
Use devm_alloc_etherdev_mqs() and simplify code.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:11:48 -04:00
Grygorii Strashko 56bf8a5df3 net: ethernet: ti: cpsw: drop pinctrl_pm_select_default_state call
Drop pinctrl_pm_select_default_state call from probe as default
pinctrl state is set by DD core.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:11:48 -04:00
Grygorii Strashko c8fb566875 net: ethernet: ti: cpsw: use local var dev in probe
Use local variable struct device *dev in probe to simplify code.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:11:48 -04:00