Commit Graph

1240 Commits

Author SHA1 Message Date
Rahul Lakkireddy 76c4d85c92 cxgb4: fix all-mask IP address comparison
Convert all-mask IP address to Big Endian, instead, for comparison.

Fixes: f286dd8eaa ("cxgb4: use correct type for all-mask IP address comparison")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 15:43:00 -07:00
Li Heng 8a259e6b73 net: cxgb4: fix return error value in t4_prep_fw
t4_prep_fw goto bye tag with positive return value when something
bad happened and which can not free resource in adap_init0.
so fix it to return negative value.

Fixes: 16e47624e7 ("cxgb4: Add new scheme to update T4/T5 firmware")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Li Heng <liheng40@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 15:53:25 -07:00
Rahul Lakkireddy 20bb0c8f2c cxgb4vf: update kernel-doc line comments
Update several kernel-doc line comments to fix warnings reported by
make W=1.

Fixes following class of warnings reported by make W=1 in several
places:
cxgb4vf_main.c:275: warning: Function parameter or member 'persistent'
not described in 'cxgb4vf_change_mac'
cxgb4vf_main.c:275: warning: Excess function parameter 'persist'
description in 'cxgb4vf_change_mac'

Fixes: 16f8bd4be7 ("cxgb4vf: Add core T4 PCI-E SR-IOV Virtual Function hardware definitions and device communication code")
Fixes: c6e0d91464 ("cxgb4vf: Add T4 Virtual Function Scatter-Gather Engine DMA code")
Fixes: e0a8b34a9c ("cxgb4vf: Add and initialize some sge params for VF driver")
Fixes: c3168cabe1 ("cxgb4/cxgbvf: Handle 32-bit fw port capabilities")
Fixes: 0e23daeb64 ("drivers/net: chelsio/cxgb*: Convert timers to use timer_setup()")
Fixes: 3f8cfd0d95 ("cxgb4/cxgb4vf: Program hash region for {t4/t4vf}_change_mac()")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23 15:18:48 -07:00
Rahul Lakkireddy 29bbf5d7f5 cxgb4: update kernel-doc line comments
Update several kernel-doc line comments to fix warnings reported by
make W=1.

Fixes following class of warnings reported by make W=1 in several
places:
l2t.c:616: warning: Cannot understand  * @dev: net_device pointer
t4_hw.c:3175: warning: Function parameter or member 'adap' not
described in 't4_get_exprom_version'
t4_hw.c:3175: warning: Excess function parameter 'adapter' description
in 't4_get_exprom_version'

Fixes: 56d36be4dd ("cxgb4: Add HW and FW support code")
Fixes: fd3a47900b ("cxgb4: Add packet queues and packet DMA code")
Fixes: 26f7cbc0a5 ("cxgb4: Don't attempt to upgrade T4 firmware when cxgb4 will end up as a slave")
Fixes: 793dad94e7 ("RDMA/cxgb4: Fix bug for active and passive LE hash collision path")
Fixes: ba3f8cd55f ("cxgb4: Add support in cxgb4 to get expansion rom version via ethtool")
Fixes: f7502659ce ("cxgb4: Add API to alloc l2t entry; also update existing ones")
Fixes: ddc7740d9a ("cxgb4: Decode link down reason code obtained from firmware")
Fixes: 193c4c2845 ("cxgb4: Update T6 Buffer Group and Channel Mappings")
Fixes: 8f46d46715 ("cxgb4: Use Firmware params to get buffer-group map")
Fixes: a456950445 ("cxgb4: time stamping interface for PTP")
Fixes: 9c33e4208b ("cxgb4: Add PTP Hardware Clock (PHC) support")
Fixes: c3168cabe1 ("cxgb4/cxgbvf: Handle 32-bit fw port capabilities")
Fixes: 5ccf9d0496 ("cxgb4: update API for TP indirect register access")
Fixes: 3bdb376e69 ("cxgb4: introduce SMT ops to prepare for SMAC rewrite support")
Fixes: 736c3b9447 ("cxgb4: collect egress and ingress SGE queue contexts")
Fixes: f56ec6766d ("cxgb4: Add support for ethtool i2c dump")
Fixes: 9d5fd927d2 ("cxgb4/cxgb4vf: add support for ndo_set_vf_vlan")
Fixes: 98f3697f8d ("cxgb4: add tc flower match support for tunnel VNI")
Fixes: 02d805dc5f ("cxgb4: use new fw interface to get the VIN and smt index")
Fixes: 3f8cfd0d95 ("cxgb4/cxgb4vf: Program hash region for {t4/t4vf}_change_mac()")
Fixes: d429005fdf ("cxgb4/cxgb4vf: Add support for SGE doorbell queue timer")
Fixes: 0e395b3cb1 ("cxgb4: add FLOWC based QoS offload")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23 15:18:48 -07:00
Rahul Lakkireddy 00e31cfc89 cxgb4: fix set but unused variable when DCB is disabled
Remove the set but unused variable when DCB is disabled. Instead,
do the calculation directly inline.

Fixes following warning in make W=1:
cxgb4_main.c: In function 'cfg_queues':
cxgb4_main.c:5380:29: warning: variable 'n1g' set but not used
[-Wunused-but-set-variable]
  u32 i, n10g = 0, qidx = 0, n1g = 0;
                             ^

Fixes: 116ca924ae ("cxgb4: fix checks for max queues to allocate")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23 15:18:48 -07:00
Rahul Lakkireddy bab3bcf3e9 cxgb4: move DCB version extern to header file
Move the DCB version string array extern to header file.

Fixes following sparse warning:
cxgb4_dcb.c:13:12: warning: symbol 'dcb_ver_array' was not declared.
Should it be static?

Fixes: ebddd97afb ("cxgb4: add support to display DCB info")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23 15:18:48 -07:00
Rahul Lakkireddy 2f6670165d cxgb4: remove cast when saving IPv4 partial checksum
The checksum field in IPv4 header is in __sum16 and ip_fast_csum()
also returns __sum16. So, no need to cast it to u16.

Fixes following sparse warning:
sge.c:1539:47: warning: cast from restricted __sum16
sge.c:1539:44: warning: incorrect type in assignment (different base types)
sge.c:1539:44:    expected restricted __sum16 [usertype] check
sge.c:1539:44:    got unsigned short [usertype]

Fixes: d0a1299c6b ("cxgb4: add support for vxlan segmentation offload")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23 15:18:48 -07:00
Rahul Lakkireddy 1992ded5d1 cxgb4: fix SGE queue dump destination buffer context
The data in destination buffer is expected to be be parsed in big
endian. So, use the right context.

Fixes following sparse warning:
cudbg_lib.c:2041:44: warning: incorrect type in assignment (different
base types)
cudbg_lib.c:2041:44:    expected unsigned long long [usertype]
cudbg_lib.c:2041:44:    got restricted __be64 [usertype]

Fixes: 736c3b9447 ("cxgb4: collect egress and ingress SGE queue contexts")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23 15:18:48 -07:00
Rahul Lakkireddy f286dd8eaa cxgb4: use correct type for all-mask IP address comparison
Use correct type to check for all-mask exact match IP addresses.

Fixes following sparse warnings due to big endian value checks
against 0xffffffff in is_addr_all_mask():
cxgb4_filter.c:977:25: warning: restricted __be32 degrades to integer
cxgb4_filter.c:983:37: warning: restricted __be32 degrades to integer
cxgb4_filter.c:984:37: warning: restricted __be32 degrades to integer
cxgb4_filter.c:985:37: warning: restricted __be32 degrades to integer
cxgb4_filter.c:986:37: warning: restricted __be32 degrades to integer

Fixes: 3eb8b62d5a ("cxgb4: add support to create hash-filters via tc-flower offload")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23 15:18:48 -07:00
Rahul Lakkireddy 63b53b0b99 cxgb4: fix endian conversions for L4 ports in filters
The source and destination L4 ports in filter offload need to be
in CPU endian. They will finally be converted to Big Endian after
all operations are done and before giving them to hardware. The
L4 ports for NAT are expected to be passed as a byte stream TCB.
So, treat them as such.

Fixes following sparse warnings in several places:
cxgb4_tc_flower.c:159:33: warning: cast from restricted __be16
cxgb4_tc_flower.c:159:33: warning: incorrect type in argument 1 (different
base types)
cxgb4_tc_flower.c:159:33:    expected unsigned short [usertype] val
cxgb4_tc_flower.c:159:33:    got restricted __be16 [usertype] dst

Fixes: dca4faeb81 ("cxgb4: Add LE hash collision bug fix path in LLD driver")
Fixes: 62488e4b53 ("cxgb4: add basic tc flower offload support")
Fixes: 557ccbf9df ("cxgb4: add tc flower support for L3/L4 rewrite")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23 15:18:47 -07:00
Rahul Lakkireddy 27f78cb245 cxgb4: parse TC-U32 key values and masks natively
TC-U32 passes all keys values and masks in __be32 format. The parser
already expects this and hence pass the value and masks in __be32
natively to the parser.

Fixes following sparse warnings in several places:
cxgb4_tc_u32.c:57:21: warning: incorrect type in assignment (different base
types)
cxgb4_tc_u32.c:57:21:    expected unsigned int [usertype] val
cxgb4_tc_u32.c:57:21:    got restricted __be32 [usertype] val
cxgb4_tc_u32_parse.h:48:24: warning: cast to restricted __be32

Fixes: 2e8aad7bf2 ("cxgb4: add parser to translate u32 filters to internal spec")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23 15:18:47 -07:00
Rahul Lakkireddy 589b1c9c16 cxgb4: use unaligned conversion for fetching timestamp
Use get_unaligned_be64() to fetch the timestamp needed for ns_to_ktime()
conversion.

Fixes following sparse warning:
sge.c:3282:43: warning: cast to restricted __be64

Fixes: a456950445 ("cxgb4: time stamping interface for PTP")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23 15:18:47 -07:00
Rahul Lakkireddy 030c98824d cxgb4: move PTP lock and unlock to caller in Tx path
Check for whether PTP is enabled or not at the caller and perform
locking/unlocking at the caller.

Fixes following sparse warning:
sge.c:1641:26: warning: context imbalance in 'cxgb4_eth_xmit' -
different lock contexts for basic block

Fixes: a456950445 ("cxgb4: time stamping interface for PTP")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23 15:18:47 -07:00
Rahul Lakkireddy 11d8cd5c9f cxgb4: move handling L2T ARP failures to caller
Move code handling L2T ARP failures to the only caller.

Fixes following sparse warning:
skbuff.h:2091:29: warning: context imbalance in
'handle_failed_resolution' - unexpected unlock

Fixes: 749cb5fe48 ("cxgb4: Replace arpq_head/arpq_tail with SKB double link-list code")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23 15:18:47 -07:00
Masahiro Yamada a7f7f6248d treewide: replace '---help---' in Kconfig files with 'help'
Since commit 84af7a6194 ("checkpatch: kconfig: prefer 'help' over
'---help---'"), the number of '---help---' has been gradually
decreasing, but there are still more than 2400 instances.

This commit finishes the conversion. While I touched the lines,
I also fixed the indentation.

There are a variety of indentation styles found.

  a) 4 spaces + '---help---'
  b) 7 spaces + '---help---'
  c) 8 spaces + '---help---'
  d) 1 space + 1 tab + '---help---'
  e) 1 tab + '---help---'    (correct indentation)
  f) 1 tab + 1 space + '---help---'
  g) 1 tab + 2 spaces + '---help---'

In order to convert all of them to 1 tab + 'help', I ran the
following commend:

  $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/'

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-06-14 01:57:21 +09:00
Denis Efremov 7f89cc07d2 cxgb4: Use kfree() instead kvfree() where appropriate
Use kfree(buf) in blocked_fl_read() because the memory is allocated with
kzalloc(). Use kfree(t) in blocked_fl_write() because the memory is
allocated with kcalloc().

Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-05 13:22:49 -07:00
Rohit Maheshwari ef1c75593e crypto/chcr: error seen if CONFIG_CHELSIO_TLS_DEVICE isn't set
cxgb4_uld_in_use() is used only by cxgb4_ktls_det_feature() which
is under CONFIG_CHELSIO_TLS_DEVICE macro.

Fixes: a3ac249a1a ("cxgb4/chcr: Enable ktls settings at run time")
Signed-off-by: Rohit Maheshwari <rohitm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-04 15:31:47 -07:00
Rohit Maheshwari a3ac249a1a cxgb4/chcr: Enable ktls settings at run time
Current design enables ktls setting from start, which is not
efficient. Now the feature will be enabled when user demands
TLS offload on any interface.

v1->v2:
- taking ULD module refcount till any single connection exists.
- taking rtnl_lock() before clearing tls_devops.

v2->v3:
- cxgb4 is now registering to tlsdev_ops.
- module refcount inc/dec in chcr.
- refcount is only for connections.
- removed new code from cxgb_set_feature().

v3->v4:
- fixed warning message.

Signed-off-by: Rohit Maheshwari <rohitm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01 15:48:18 -07:00
Dan Carpenter bda6752f3d cxgb4: cleanup error code in setup_sge_queues_uld()
The caller doesn't care about the error codes, they only check for zero
vs non-zero.  Still, it's better to preserve the negative error codes
from alloc_uld_rxqs() instead of changing it to 1.  We can also return
directly if there is a failure.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01 11:32:59 -07:00
Potnuri Bharat Teja 93a09e7457 cxgb4: add adapter hotplug support for ULDs
Upon adapter hotplug, cxgb4 registers ULD devices for all the ULDs that
are already loaded, ensuring that ULD's can enumerate the hotplugged
adapter without reloading the ULD.

Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-22 16:04:01 -07:00
Andy Shevchenko 0992b49023 cxgb4: Use %pM format specifier for MAC addresses
Convert to %pM instead of using custom code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-18 17:43:13 -07:00
Rahul Lakkireddy 5148e5950c cxgb4: add EOTID tracking and software context dump
Rework and add support for dumping EOTID software context used by
TC-MQPRIO. Also track number of EOTIDs in use.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-15 10:54:07 -07:00
Rahul Lakkireddy 4bccfc036a cxgb4: tune burst buffer size for TC-MQPRIO offload
For each traffic class, firmware handles up to 4 * MTU amount of data
per burst cycle. Under heavy load, this small buffer size is a
bottleneck when buffering large TSO packets in <= 1500 MTU case.
Increase the burst buffer size to 8 * MTU when supported.

Also, keep the driver's traffic class configuration API similar to
the firmware API counterpart.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-15 10:54:07 -07:00
Rahul Lakkireddy 4f1d97262d cxgb4: improve credits recovery in TC-MQPRIO Tx path
Request credit update for every half credits consumed, including
the current request. Also, avoid re-trying to post packets when there
are no credits left. The credit update reply via interrupt will
eventually restore the credits and will invoke the Tx path again.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-15 10:54:07 -07:00
Chen Zhou bb206a0869 cxgb4: remove duplicate headers
Remove duplicate headers which are included twice.

Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-07 13:25:40 -07:00
David S. Miller 3793faad7b Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts were all overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-06 22:10:13 -07:00
Geert Uytterhoeven 730f135104 cxgb4/cxgb4vf: Remove superfluous void * cast in debugfs_create_file() call
There is no need to cast a typed pointer to a void pointer when calling
a function that accepts the latter.  Remove it, as the cast prevents
further compiler checks.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-05 13:16:26 -07:00
Jules Irenge cae9566acb cxgb4: Add missing annotation for service_ofldq()
Sparse reports a warning at service_ofldq()

warning: context imbalance in service_ofldq() - unexpected unlock

The root cause is the missing annotation at service_ofldq()

Add the missing __must_hold(&q->sendq.lock) annotation

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01 15:31:37 -07:00
Mauro Carvalho Chehab c839ce557b docs: networking: device drivers: convert chelsio/cxgb.txt to ReST
- add SPDX header;
- use copyright symbol;
- adjust titles and chapters, adding proper markups;
- comment out text-only TOC from html/pdf output;
- mark code blocks and literals as such;
- add notes markups;
- mark tables as such;
- mark lists as such;
- adjust identation, whitespaces and blank lines where needed;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01 12:24:41 -07:00
Rahul Lakkireddy 69422a7e5d cxgb4: fix EOTID leak when disabling TC-MQPRIO offload
Under heavy load, the EOTID termination FLOWC request fails to get
enqueued to the end of the Tx ring due to lack of credits. This
results in EOTID leak.

When disabling TC-MQPRIO offload, the link is already brought down
to cleanup EOTIDs. So, flush any pending enqueued skbs that can't be
sent outside the wire, to make room for FLOWC request. Also, move the
FLOWC descriptor consumption logic closer to when the FLOWC request is
actually posted to hardware.

Fixes: 0e395b3cb1 ("cxgb4: add FLOWC based QoS offload")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30 21:01:46 -07:00
Vishal Kulkarni ce22274807 cxgb4: fix adapter crash due to wrong MC size
In the absence of MC1, the size calculation function
cudbg_mem_region_size() was returing wrong MC size and
resulted in adapter crash. This patch adds new argument
to cudbg_mem_region_size() which will have actual size
and returns error to caller in the absence of MC1.

Fixes: a1c69520f7 ("cxgb4: collect MC memory dump")
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>"
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-23 12:41:09 -07:00
Rahul Lakkireddy bd019427bf cxgb4: fix large delays in PTP synchronization
Fetching PTP sync information from mailbox is slow and can take
up to 10 milliseconds. Reduce this unnecessary delay by directly
reading the information from the corresponding registers.

Fixes: 9c33e4208b ("cxgb4: Add PTP Hardware Clock (PHC) support")
Signed-off-by: Manoj Malviya <manojmalviya@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-20 12:54:30 -07:00
Jason Gunthorpe c799fca8ba net/cxgb4: Check the return from t4_query_params properly
Positive return values are also failures that don't set val,
although this probably can't happen. Fixes gcc 10 warning:

drivers/net/ethernet/chelsio/cxgb4/t4_hw.c: In function ‘t4_phy_fw_ver’:
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:3747:14: warning: ‘val’ may be used uninitialized in this function [-Wmaybe-uninitialized]
 3747 |  *phy_fw_ver = val;

Fixes: 01b6961410 ("cxgb4: Add PHY firmware support for T420-BT cards")
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-14 16:44:54 -07:00
Rahul Lakkireddy cef8dac96b cxgb4: free MQPRIO resources in shutdown path
Perform missing MQPRIO resource cleanup in PCI shutdown path. Also,
fix MQPRIO MSIX bitmap leak in resource cleanup.

Fixes: b1396c2bd6 ("cxgb4: parse and configure TC-MQPRIO offload")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-01 11:16:43 -07:00
Herat Ramani 41aa8561ca cxgb4: fix MPS index overwrite when setting MAC address
cxgb4_update_mac_filt() earlier requests firmware to add a new MAC
address into MPS TCAM. The MPS TCAM index returned by firmware is
stored in pi->xact_addr_filt. However, the saved MPS TCAM index gets
overwritten again with the return value of cxgb4_update_mac_filt(),
which is wrong.

When trying to update to another MAC address later, the wrong MPS TCAM
index is sent to firmware, which causes firmware to return error,
because it's not the same MPS TCAM index that firmware had sent
earlier to driver.

So, fix by removing the wrong overwrite being done after call to
cxgb4_update_mac_filt().

Fixes: 3f8cfd0d95 ("cxgb4/cxgb4vf: Program hash region for {t4/t4vf}_change_mac()")
Signed-off-by: Herat Ramani <herat@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-01 11:15:49 -07:00
Rohit Maheshwari a0190431d1 cxgb4/chcr: nic-tls stats in ethtool
Included nic tls statistics in ethtool stats.

Signed-off-by: Rohit Maheshwari <rohitm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-31 10:11:07 -07:00
Jiri Pirko 93a129eb8c net: sched: expose HW stats types per action used by drivers
It may be up to the driver (in case ANY HW stats is passed) to select
which type of HW stats he is going to use. Add an infrastructure to
expose this information to user.

$ tc filter add dev enp3s0np1 ingress proto ip handle 1 pref 1 flower dst_ip 192.168.1.1 action drop
$ tc -s filter show dev enp3s0np1 ingress
filter protocol ip pref 1 flower chain 0
filter protocol ip pref 1 flower chain 0 handle 0x1
  eth_type ipv4
  dst_ip 192.168.1.1
  in_hw in_hw_count 2
        action order 1: gact action drop
         random type none pass val 0
         index 1 ref 1 bind 1 installed 10 sec used 10 sec
        Action statistics:
        Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
        backlog 0b 0p requeues 0
        used_hw_stats immediate     <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:06:49 -07:00
David S. Miller 9fb16955fb Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Overlapping header include additions in macsec.c

A bug fix in 'net' overlapping with the removal of 'version'
string in ena_netdev.c

Overlapping test additions in selftests Makefile

Overlapping PCI ID table adjustments in iwlwifi driver.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25 18:58:11 -07:00
Rahul Kundu 1f074e677a cxgb4: Add support to catch bits set in INT_CAUSE5
This commit adds support to catch any bits set in SGE_INT_CAUSE5 for Parity Errors.
F_ERR_T_RXCRC flag is used to ignore that particular bit as it is not considered as fatal.
So, we clear out the bit before looking for error.
This patch now read and report separately all three registers(Cause1, Cause2, Cause5).
Also, checks for errors if any.

Signed-off-by: Raju Rangoju <rajur@chelsio.com>
Signed-off-by: Rahul Kundu <rahul.kundu@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25 12:22:33 -07:00
YueHaibing fab90c8202 cxgb4: remove set but not used variable 'tab'
drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c: In function cxgb4_get_free_ftid:
drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c:547:23:
 warning: variable tab set but not used [-Wunused-but-set-variable]

commit 8d174351f2 ("cxgb4: rework TC filter rule insertion across regions")
involved this, remove it.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25 11:18:27 -07:00
Raju Rangoju 50e0d28d38 cxgb4/ptp: pass the sign of offset delta in FW CMD
cxgb4_ptp_fineadjtime() doesn't pass the signedness of offset delta
in FW_PTP_CMD. Fix it by passing correct sign.

Signed-off-by: Raju Rangoju <rajur@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-24 16:23:55 -07:00
Rahul Lakkireddy f1f20a8666 cxgb4: fix Txq restart check during backpressure
Driver reclaims descriptors in much smaller batches, even if hardware
indicates more to reclaim, during backpressure. So, fix the check to
restart the Txq during backpressure, by looking at how many
descriptors hardware had indicated to reclaim, and not on how many
descriptors that driver had actually reclaimed. Once the Txq is
restarted, driver will reclaim even more descriptors when Tx path
is entered again.

Fixes: d429005fdf ("cxgb4/cxgb4vf: Add support for SGE doorbell queue timer")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-19 21:30:14 -07:00
Rahul Lakkireddy 7affd80802 cxgb4: fix throughput drop during Tx backpressure
commit 7c3bebc3d8 ("cxgb4: request the TX CIDX updates to status page")
reverted back to getting Tx CIDX updates via DMA, instead of interrupts,
introduced by commit d429005fdf ("cxgb4/cxgb4vf: Add support for SGE
doorbell queue timer")

However, it missed reverting back several code changes where Tx CIDX
updates are not explicitly requested during backpressure when using
interrupt mode. These missed changes cause slow recovery during
backpressure because the corresponding interrupt no longer comes and
hence results in Tx throughput drop.

So, revert back these missed code changes, as well, which will allow
explicitly requesting Tx CIDX updates when backpressure happens.
This enables the corresponding interrupt with Tx CIDX update message
to get generated and hence speed up recovery and restore back
throughput.

Fixes: 7c3bebc3d8 ("cxgb4: request the TX CIDX updates to status page")
Fixes: d429005fdf ("cxgb4/cxgb4vf: Add support for SGE doorbell queue timer")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-19 21:29:07 -07:00
Rahul Lakkireddy 8d174351f2 cxgb4: rework TC filter rule insertion across regions
Chelsio NICs have 3 filter regions, in following order of priority:
1. High Priority (HPFILTER) region (Highest Priority).
2. HASH region.
3. Normal FILTER region (Lowest Priority).

Currently, there's a 1-to-1 mapping between the prio value passed
by TC and the filter region index. However, it's possible to have
multiple TC rules with the same prio value. In this case, if a region
is exhausted, no attempt is made to try inserting the rule in the
next available region.

So, rework and remove the 1-to-1 mapping. Instead, dynamically select
the region to insert the filter rule, as long as the new rule's prio
value doesn't conflict with existing rules across all the 3 regions.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-18 16:39:03 -07:00
Jakub Kicinski 53eca1f347 net: rename flow_action_hw_stats_types* -> flow_action_hw_stats*
flow_action_hw_stats_types_check() helper takes one of the
FLOW_ACTION_HW_STATS_*_BIT values as input. If we align
the arguments to the opening bracket of the helper there
is no way to call this helper and stay under 80 characters.

Remove the "types" part from the new flow_action helpers
and enum values.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-17 21:12:39 -07:00
Shahjada Abul Husain 46ea929b2b cxgb4: fix delete filter entry fail in unload path
Currently, the hardware TID index is assumed to start from index 0.
However, with the following changeset,

commit c219399988 ("cxgb4: add support for high priority filters")

hardware TID index can start after the high priority region, which
has introduced a regression resulting in remove filters entry
failure for cxgb4 unload path. This patch fix that.

Fixes: c219399988 ("cxgb4: add support for high priority filters")
Signed-off-by: Shahjada Abul Husain <shahjada@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-15 00:12:33 -07:00
Shahjada Abul Husain 724d021566 cxgb4: update T5/T6 adapter register ranges
Add more T5/T6 registers to be collected in register dump:

1. MPS register range 0x9810 to 0x9864 and 0xd000 to 0xd004.
2. NCSI register range 0x1a114 to 0x1a130 and 0x1a138 to 0x1a1c4.

Signed-off-by: Shahjada Abul Husain <shahjada@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-14 20:44:46 -07:00
David S. Miller 1d34357931 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Minor overlapping changes, nothing serious.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12 22:34:48 -07:00
Jakub Kicinski 009ab69b4b net: cxgb4vf: 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>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-10 16:28:53 -07:00
Jakub Kicinski 5608c64179 net: cxgb4: 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>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-10 16:28:53 -07:00