Commit Graph

280 Commits

Author SHA1 Message Date
Gustavo A. R. Silva 0fcf466643 net: atlantic: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-02 11:16:28 -08:00
Leon Romanovsky 0d8c4becb4 net/aquantia: Delete module version
There is no need to keep module and driver versions in in-tree
kernel code.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-24 11:24:47 -08:00
Dmitry Bogdanov 5a292c89a8 net: atlantic: fix out of range usage of active_vlans array
fix static checker warning:
 drivers/net/ethernet/aquantia/atlantic/aq_filters.c:166 aq_check_approve_fvlan()
 error: passing untrusted data to 'test_bit()'

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 7975d2aff5af: ("net: aquantia: add support of rx-vlan-filter offload")
Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-16 19:03:40 -08:00
Pavel Belous 52a22f4d6f net: atlantic: possible fault in transition to hibernation
during hibernation freeze, aq_nic_stop could be invoked
on a stopped device. That may cause panic on access to
not yet allocated vector/ring structures.

Add a check to stop device if it is not yet stopped.

Similiarly after freeze in hibernation thaw, aq_nic_start
could be invoked on a not initialized net device.
Result will be the same.

Add a check to start device if it is initialized.
In our case, this is the same as started.

Fixes: 8aaa112a57 ("net: atlantic: refactoring pm logic")
Signed-off-by: Pavel Belous <pbelous@marvell.com>
Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-16 19:03:40 -08:00
Pavel Belous 380ec5b9af net: atlantic: fix potential error handling
Code inspection found that in case of mapping error we do return current
'ret' value. But beside error, it is used to count number of descriptors
allocated for the packet. In that case map_skb function could return '1'.

Changing it to return zero (number of mapped descriptors for skb)

Fixes: 018423e90b ("net: ethernet: aquantia: Add ring support code")
Signed-off-by: Pavel Belous <pbelous@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-16 19:03:39 -08:00
Pavel Belous a4980919ad net: atlantic: fix use after free kasan warn
skb->len is used to calculate statistics after xmit invocation.

Under a stress load it may happen that skb will be xmited,
rx interrupt will come and skb will be freed, all before xmit function
is even returned.

Eventually, skb->len will access unallocated area.

Moving stats calculation into tx_clean routine.

Fixes: 018423e90b ("net: ethernet: aquantia: Add ring support code")
Reported-by: Christophe Vu-Brugier <cvubrugier@fastmail.fm>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Pavel Belous <pbelous@marvell.com>
Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-16 19:03:39 -08:00
Nikita Danilov b42726fcf7 net: atlantic: better loopback mode handling
Add checks to not enable multiple loopback modes simultaneously,
It was also discovered that for dma loopback to function correctly
promisc mode should be enabled on device.

Fixes: ea4b4d7fc1 ("net: atlantic: loopback tests via private flags")
Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-16 19:03:39 -08:00
Egor Pomozov f08a464c27 net: atlantic: ptp gpio adjustments
Clock adjustment data should be passed to FW as well, otherwise in some
cases a drift was observed when using GPIO features.

Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-16 19:03:39 -08:00
Igor Russkikh e7b5f97e65 net: atlantic: check rpc result and wait for rpc address
Artificial HW reliability tests revealed a possible hangup in
the driver. Normally, when device disappears from bus, all
register reads returns 0xFFFFFFFF.

At remote procedure invocation towards FW there is a logic
where result is compared with -1 in a loop.
That caused an infinite loop if hardware due to some issues
disappears from bus.

Add extra result checks to prevent this.

Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-16 19:03:39 -08:00
Dmitry Bezrukov 15beab0a9d net: atlantic: checksum compat issue
Yet another checksum offload compatibility issue was found.

The known issue is that AQC HW marks tcp packets with 0xFFFF checksum
as invalid (1). This is workarounded in driver, passing all the suspicious
packets up to the stack for further csum validation.

Another HW problem (2) is that it hides invalid csum of LRO aggregated
packets inside of the individual descriptors. That was workarounded
by forced scan of all LRO descriptors for checksum errors.

However the scan logic was joint for both LRO and multi-descriptor
packets (jumbos). And this causes the issue.

We have to drop LRO packets with the detected bad checksum
because of (2), but we have to pass jumbo packets to stack because of (1).

When using windows tcp partner with jumbo frames but with LSO disabled
driver discards such frames as bad checksummed. But only LRO frames
should be dropped, not jumbos.

On such a configurations tcp stream have a chance of drops and stucks.

(1) 76f254d4af ("net: aquantia: tcp checksum 0xffff being handled incorrectly")
(2) d08b9a0a3e ("net: aquantia: do not pass lro session with invalid tcp checksum")

Fixes: d08b9a0a3e ("net: aquantia: do not pass lro session with invalid tcp checksum")
Signed-off-by: Dmitry Bezrukov <dbezrukov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-16 19:03:39 -08:00
Linus Torvalds 6a1000bd27 ioremap changes for 5.6
- remove ioremap_nocache given that is is equivalent to
    ioremap everywhere
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Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap

Pull ioremap updates from Christoph Hellwig:
 "Remove the ioremap_nocache API (plus wrappers) that are always
  identical to ioremap"

* tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap:
  remove ioremap_nocache and devm_ioremap_nocache
  MIPS: define ioremap_nocache to ioremap
2020-01-27 13:03:00 -08:00
Igor Russkikh b585f8602a net: atlantic: remove duplicate entries
Function entries were duplicated accidentally, removing the dups.

Fixes: ea4b4d7fc1 ("net: atlantic: loopback tests via private flags")
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-06 14:06:11 -08:00
Igor Russkikh 883daa1854 net: atlantic: loopback configuration in improper place
Initial loopback configuration should be called earlier, before
starting traffic on HW blocks. Otherwise depending on race conditions
it could be kept disabled.

Fixes: ea4b4d7fc1 ("net: atlantic: loopback tests via private flags")
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-06 14:06:11 -08:00
Igor Russkikh ac70957ee1 net: atlantic: broken link status on old fw
Last code/checkpatch cleanup did a copy paste error where code from
firmware 3 API logic was moved to firmware 1 logic.

This resulted in FW1.x users would never see the link state as active.

Fixes: 7b0c342f1f ("net: atlantic: code style cleanup")
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-06 14:06:11 -08:00
Christoph Hellwig 4bdc0d676a 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>
2020-01-06 09:45:59 +01:00
Dan Carpenter d41378713e net: atlantic: Signedness bug in aq_vec_isr_legacy()
irqreturn_t type is an enum and in this context it's unsigned, so "err"
can't be irqreturn_t or it breaks the error handling.  In fact the "err"
variable is only used to store integers (never irqreturn_t) so it should
be declared as int.

I removed the initialization because it's not required.  Using a bogus
initializer turns off GCC's uninitialized variable warnings.  Secondly,
there is a GCC warning about unused assignments and we would like to
enable that feature eventually so we have been trying to remove these
unnecessary initializers.

Fixes: 7b0c342f1f ("net: atlantic: code style cleanup")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-13 14:29:28 -08:00
zhengbin 7b094968cc net: atlantic: make function 'aq_ethtool_get_priv_flags', 'aq_ethtool_set_priv_flags' static
Fix sparse warnings:

drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c:706:5: warning: symbol 'aq_ethtool_get_priv_flags' was not declared. Should it be static?
drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c:713:5: warning: symbol 'aq_ethtool_set_priv_flags' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: ea4b4d7fc1 ("net: atlantic: loopback tests via private flags")
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-12 10:55:41 -08:00
zhengbin 0ee0bbb018 net: atlantic: make symbol 'aq_pm_ops' static
Fix sparse warnings:

drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c:426:25: warning: symbol 'aq_pm_ops' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 8aaa112a57 ("net: atlantic: refactoring pm logic")
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-12 10:55:41 -08:00
Igor Russkikh 362cabda8d net: atlantic: change email domains to Marvell
Aquantia is now part of Marvell, eventually we'll cease standalone
aquantia.com domain. Thus, change the maintainers file and some other
references to @marvell.com domain

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-07 19:54:43 -08:00
Igor Russkikh 822cd114cd net: atlantic: implement UDP GSO offload
atlantic hardware does support UDP hardware segmentation offload.
This allows user to specify one large contiguous buffer with data
which then will be split automagically into multiple UDP packets
of specified size.

Bulk sending of large UDP streams lowers CPU usage and increases
bandwidth.

We did estimations both with udpgso_bench_tx test tool and with modified
iperf3 measurement tool (4 streams, multithread, 200b packet size)
over AQC<->AQC 10G link. Flow control is disabled to prevent RX side
impact on measurements.

No UDP GSO:
	iperf3 -c 10.0.1.2 -u -b0 -l 200 -P4 --multithread
UDP GSO:
	iperf3 -c 10.0.1.2 -u -b0 -l 12600 --udp-lso 200 -P4 --multithread

Mode          CPU   iperf speed    Line speed   Packets per second
-------------------------------------------------------------
NO UDP GSO    350%   3.07 Gbps      3.8 Gbps     1,919,419
SW UDP GSO    200%   5.55 Gbps      6.4 Gbps     3,286,144
HW UDP GSO    90%    6.80 Gbps      8.4 Gbps     4,273,117

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-07 19:54:43 -08:00
Nikita Danilov 8009bb1928 net: atlantic: update flow control logic
We now differentiate requested and negotiated flow control
modes. Therefore `ethtool -A` now operates on local requested
FC values, and regular link settings shows the negotiated FC
settings.

Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-07 19:54:43 -08:00
Igor Russkikh ddef552632 net: atlantic: stylistic renames
We are trying to follow the naming of the chip (atlantic), not
company. So replace some old namings.

Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-07 19:54:43 -08:00
Nikita Danilov 7b0c342f1f net: atlantic: code style cleanup
Thats a pure checkpatck walkthrough the code with no functional
changes. Reverse christmas tree, spacing, etc.

Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-07 19:54:43 -08:00
Igor Russkikh ea4b4d7fc1 net: atlantic: loopback tests via private flags
Here we add a number of ethtool private flags
to allow enabling various loopbacks on HW.

Thats useful for verification and bringup works.

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-07 19:54:43 -08:00
Nikita Danilov dc12f75afc net: atlantic: add fw configuration memory area
Device FW has a separate memory area where various
config fields are stored and could be used by the
driver.

Here we modify download/upload infrastructure to
allow accessing this area.

Lateron this will be used to configure various behaviours

Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-07 19:54:43 -08:00
Nikita Danilov d1287ce4ff net: atlantic: adding ethtool physical identification
`ethtool -p eth0` will blink leds helping identify
physical port.

Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-07 19:54:43 -08:00
Nikita Danilov 58128fa026 net: atlantic: add msglevel configuration
We add ethtool msglevel configuration and change some
printouts to use netdev_info set of functions.

Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-07 19:54:43 -08:00
Nikita Danilov 8aaa112a57 net: atlantic: refactoring pm logic
We now implement .driver.pm callbacks, these
allows driver to work correctly in hibernate
usecases, especially when used in conjunction with
WOL feature.

Before that driver only reacted to legacy .suspend/.resume
callbacks, that was a limitation in some cases.

Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-07 19:54:42 -08:00
Nikita Danilov 837c637869 net: atlantic: implement wake_phy feature
Wake on PHY allows to configure device to wakeup host
as soon as PHY link status is changed to active.

Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-07 19:54:42 -08:00
Nikita Danilov d993e14bd8 net: atlantic: update firmware interface
Here we improve FW interface structures layout
and prepare these for the wake phy feature implementation.

Signed-off-by: Nikita Danilov <ndanilov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-07 19:54:42 -08:00
Wei Yongjun 1dcff44a9d net: aquantia: fix return value check in aq_ptp_init()
Function ptp_clock_register() returns ERR_PTR() and never returns
NULL. The NULL test should be removed.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:21:09 -08:00
Gustavo A. R. Silva 76d7774e20 net: aquantia: fix error handling in aq_ptp_poll
Fix currenty ignored returned error by properly checking *err* after
calling aq_nic->aq_hw_ops->hw_ring_hwts_rx_fill().

Addresses-Coverity-ID: 1487357 ("Unused value")
Fixes: 04a1839950 ("net: aquantia: implement data PTP datapath")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 16:42:17 -07:00
YueHaibing 207136dfeb net: aquantia: remove unused including <linux/version.h>
Remove including <linux/version.h> that don't need it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 16:18:10 -07:00
Mao Wenan 11dbb632a4 net: aquantia: make two symbols be static
When using ARCH=mips CROSS_COMPILE=mips-linux-gnu-
to build drivers/net/ethernet/aquantia/atlantic/aq_ptp.o
and drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.o,
below errors can be seen:
drivers/net/ethernet/aquantia/atlantic/aq_ptp.c:1378:6:
warning: symbol 'aq_ptp_poll_sync_work_cb' was not declared.
Should it be static?

drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c:1155:5:
warning: symbol 'hw_atl_b0_ts_to_sys_clock' was not declared.
Should it be static?

This patch to make aq_ptp_poll_sync_work_cb and hw_atl_b0_ts_to_sys_clock
be static to fix these warnings.

Fixes: 9c477032f7 ("net: aquantia: add support for PIN funcs")
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 16:15:45 -07:00
Colin Ian King 92d72f1b8b net: aquantia: fix unintention integer overflow on left shift
Shifting the integer value 1 is evaluated using 32-bit
arithmetic and then used in an expression that expects a 64-bit
value, so there is potentially an integer overflow. Fix this
by using the BIT_ULL macro to perform the shift and avoid the
overflow.

Addresses-Coverity: ("Unintentional integer overflow")
Fixes: 04a1839950 ("net: aquantia: implement data PTP datapath")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 10:47:52 -07:00
Colin Ian King 6997790186 net: aquantia: fix spelling mistake: tx_queus -> tx_queues
There is a spelling mistake in a netdev_err error message. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-29 10:47:25 -07:00
Igor Russkikh 7873ee26b1 net: aquantia: disable ptp object build if no config
We do disable aq_ptp module build using inline
stubs when CONFIG_PTP_1588_CLOCK is not declared.

This reduces module size and removes unnecessary code.

Reported-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-26 11:28:40 -07:00
Igor Russkikh 5eeb6c3cf2 net: aquantia: fix warnings on endianness
fixes to remove sparse warnings:
sparse: sparse: cast to restricted __be64

Fixes: 04a1839950 ("net: aquantia: implement data PTP datapath")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-26 11:28:40 -07:00
Igor Russkikh bb1eded18d net: aquantia: fix var initialization warning
found by sparse, simply useless local initialization with zero.

Fixes: 94ad94558b ("net: aquantia: add PTP rings infrastructure")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-26 11:28:40 -07:00
Dmitry Bezrukov 9c477032f7 net: aquantia: add support for PIN funcs
Depending on FW configuration we can manage from 0 to 3 PINs for periodic output
and from 0 to 1 ext ts PIN for getting TS for external event.

Ext TS PIN functionality is implemented via periodic timestamps polling
directly from PHY, because right now there is now way to receive the
PIN trigger interrupt from phy.

The polling interval is 15 milliseconds.

Co-developed-by: Egor Pomozov <epomozov@marvell.com>
Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Pavel Belous <pavel.belous@aquantia.com>
Signed-off-by: Pavel Belous <pavel.belous@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:23 -07:00
Dmitry Bezrukov dbcd6806af net: aquantia: add support for Phy access
GPIO PIN control and access is done by direct phy manipulation.
Here we add an aq_phy module which is able to access phy registers
via MDIO access mailbox.

Access is controlled via HW semaphore.

Co-developed-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:23 -07:00
Egor Pomozov 84989af046 net: aquantia: implement get_ts_info ethtool
Ethtool callback with basic information on what PTP features are supported
by the device.

Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Co-developed-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:23 -07:00
Egor Pomozov 7db3d07afd net: aquantia: add support for ptp ioctls
Here we add support for PTP specific IOCTLs of HW timestamp get/set.

These will use filters to configure flows onto the required queue ids.

Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:23 -07:00
Dmitry Bezrukov 5a1bf9ef51 net: aquantia: rx filters for ptp
We implement HW filter reservation for PTP traffic. Special location
in filters table is marked as reserved, because incoming ptp traffic
should be directed only to PTP designated queue. This way HW will do PTP
timestamping and proper processing.

Co-developed-by: Egor Pomozov <epomozov@marvell.com>
Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:23 -07:00
Egor Pomozov 04a1839950 net: aquantia: implement data PTP datapath
Here we do alloc/free IRQs for PTP rings.
We also implement processing of PTP packets on TX and RX sides.

Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Co-developed-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:22 -07:00
Dmitry Bezrukov 61cc502ef4 net: aquantia: styling fixes on ptp related functions
Checkpatch and styling fixes on parts of code touched by ptp

Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:22 -07:00
Egor Pomozov 94ad94558b net: aquantia: add PTP rings infrastructure
Add implementations of PTP rings alloc/free.

PTP desing on this device uses two separate rings on a separate traffic
class for traffic rx/tx.

Third ring (hwts) is not a traffic ring, but is used only to receive timestamps
of the transmitted packets.

Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Co-developed-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:22 -07:00
Egor Pomozov 910479a9f7 net: aquantia: add basic ptp_clock callbacks
Basic HW functions implemented for adjusting frequency,
adjusting time, getting and setting time.
With these callbacks we now do register ptp clock in the system.

Firmware interface parts are defined for PTP requests and interactions.
Enable/disable PTP counters in HW on clock register/unregister.

Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Co-developed-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:22 -07:00
Dmitry Bezrukov 593f7b43bd net: aquantia: unify styling of bit enums
Make some other bit-enums more clear about positioning,
this helps on debugging and development

Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:22 -07:00
Egor Pomozov 1a64f8dc82 net: aquantia: PTP skeleton declarations and callbacks
Here we add basic function for PTP clock register/unregister.
We also declare FW/HW capability bits used to control PTP feature on device.

PTP device is created if network card has appropriate FW that has PTP
enabled in config. HW supports timestamping for PTPv2 802.AS1 and
PTPv2 IPv4 UDP packets.

It also supports basic PTP callbacks for getting/setting time, adjusting
frequency and time as well.

Signed-off-by: Egor Pomozov <epomozov@marvell.com>
Co-developed-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Signed-off-by: Sergey Samoilenko <sergey.samoilenko@aquantia.com>
Co-developed-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-24 09:51:22 -07:00