Commit Graph

22223 Commits

Author SHA1 Message Date
Jian Shen
2097fdefa5 net: hns3: add result checking for VF when modify unicast mac address
VF changes unicast mac address by sending mailbox msg to PF, then PF
completes the mac address modification. It may fail when the target
uc mac address is already in the mac_vlan table. VF should be aware
of it by reading the message result.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11 22:53:32 -04:00
Jian Shen
d07b6bb435 net: hns3: add existence checking before adding unicast mac address
It's not allowed to add two same unicast mac address entries to the
mac_vlan table. When modify the uc mac address of a VF device to the
same value with the PF device's, the PF device will lose its entry of
the mac_vlan table.

Lookup the mac address in the mac_vlan table, and add it if the entry
is inexistent.

Fixes: 46a3df9f97 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11 22:53:32 -04:00
Jian Shen
eefd00a5d7 net: hns3: fix return value error of hclge_get_mac_vlan_cmd_status()
Error code -EIO was used to indicate mutilple errors in function
hclge_get_mac_vlan_cmd_status().This patch fixes it by using
error code depending on the error type.

For no space error, return -ENOSPC.
For entry not found, return -ENOENT.
For command send fail, return -EIO.
For invalid op code, return -EINVAL.

Fixes: 46a3df9f97 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11 22:53:32 -04:00
Jian Shen
aa7a795eec net: hns3: fix error type definition of return value
An enum type variable was used to store an "int" type return value.
This patch fixes it.

Fixes: 46a3df9f97 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11 22:53:32 -04:00
Yunsheng Lin
5d02a58dae net: hns3: fix for buffer overflow smatch warning
This patch fixes the buffer overflow warning by refactoring
hclgevf_bind_ring_to_vector and hclge_get_ring_chain_from_mbx.

Fixes: e2cb1dec97 ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support")
Fixes: dde1a86e93 ("net: hns3: Add mailbox support to PF driver")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11 22:53:32 -04:00
Yunsheng Lin
f96818a7cc net: hns3: fix for loopback failure when vlan filter is enable
When vlan ctag filter is enabled, the loopback selftest fails because
loopback selftest does not support vlan.

This patch fixes it by disabling the vlan ctag filter when runnig
loopback selftest.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11 22:53:32 -04:00
Peng Li
64fd2300fc net: hns3: add support for querying pfc puase packets statistic
This patch add support for querying pfc puase packets statistic
in hclge_ieee_getpfc, which is used to tell user how many pfc
puase packets have been sent and received by this mac port.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11 22:53:32 -04:00
Peng Li
f8d291f00b net: hns3: fix rx path skb->truesize reporting bug
Original skb->truesize reports the received packet size,
not the actual buffer size NIC driver allocated(1 Page).
The linux net protocol will misjudge the true size of rx queue.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11 22:53:31 -04:00
Fuyun Liang
e98d7183f6 net: hns3: unify the pause params setup function
Since the firmware cmd to setup mac pause params is the same as the
firmware cmd to pfc pause params, this patch unifies the pause params
setup function.

Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11 22:53:31 -04:00
Fuyun Liang
20e4bf982b net: hns3: fix for ipv6 address loss problem after setting channels
The function of dev_close and dev_open is just likes ifconfig <netif> down
and ifconfig <netif> up. The ipv6 address will be lost after dev_close and
dev_open are called. This patch uses hns3_nic_net_stop to replace dev_close
and uses hns3_nic_net_open to replace dev_open.

Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11 22:53:31 -04:00
Fuyun Liang
8cc6c1f77b net: hns3: fix for netdev not running problem after calling net_stop and net_open
The link status update function is called by timer every second. But
net_stop and net_open may be called with very short intervals. The link
status update function can not detect the link state has changed. It
causes the netdev not running problem.

This patch fixes it by updating the link state in ae_stop function.

Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11 22:53:31 -04:00
Fuyun Liang
590980558b net: hns3: add existence check when remove old uc mac address
When driver is in initial state, the mac_vlan table table is empty.
So the delete operation for mac address must fail. Existence check
is needed here. Otherwise, the error message will make user confused.

Fixes: 46a3df9f97 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11 22:53:31 -04:00
Ganesh Goudar
d185efc1da cxgb4: increase max tx rate limit to 100 Gbps
T6 cards can support up to 100 G speeds. So, increase
max programmable tx rate limit to 100 Gbps.

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09 12:57:35 -05:00
Yunsheng Lin
7a242b232a net: hns3: fix for coal configuation lost when setting the channel
This patch fixes the coalesce configuation lost problem when
setting the channel number by restoring all vectors's coalesce
configuation to vector 0's, because all vectors belonging to
the same netdev have the same coalesce configuation for now.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09 11:33:14 -05:00
Yunsheng Lin
9bc727a9d5 net: hns3: refactor the coalesce related struct
This patch refoctors the coalesce related struct by introducing
the hns3_enet_coalesce struct, in order to fix the coalesce
configuation lost problem when changing the channel number.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09 11:33:14 -05:00
Yunsheng Lin
dd38c72604 net: hns3: fix for coalesce configuration lost during reset
Coalesce configuration will be set to default value by
hns3_nic_init_vector_data during reset, which causes the
coalesce configuration loss problem.

This patch fixes it by setting the default value in
hns3_nic_alloc_vector_data, which will not be called in the
reset process.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09 11:33:14 -05:00
Yunsheng Lin
0d3e6631de net: hns3: refactor the get/put_vector function
There is a get_vector function, which allocate the vectors
for a client, but there is not a put_vector to free the
vector.

This patch introduces the put_vector function in order to
fix the coalesce configuration lost problem during reset
process.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09 11:33:14 -05:00
Yunsheng Lin
ec77789032 net: hns3: fix for use-after-free when setting ring parameter
In hns3_set_ringparam, hns3_uninit_all_ring frees the
memory pointed by priv->ring_data[i].ring, and
hns3_change_all_ring_bd_num use that pointer without mallocing,
which will cause a use-after-free problem.

The patch fixes it by not freeing the memory in
hns3_uninit_all_ring, and uses hns3_put_ring_config to free it
when necessary.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09 11:33:14 -05:00
Yunsheng Lin
f31c1ba668 net: hns3: fix for pause configuration lost during reset
Pause configuration will be set to default value by hclge_tm_schd_init
during reset, which causes the RSS configuration loss problem.

This patch fixes it by calling hclge_tm_init_hw during reset process
, which will set the pause configuration to default value.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09 11:33:14 -05:00
Yunsheng Lin
268f5dfade net: hns3: fix for RSS configuration loss problem during reset
RSS configuration will be set to default value by hclge_rss_init_hw
during reset, which causes the RSS configuration loss problem.

This patch fixes it by setting the default value in
hclge_rss_init_cfg function, which will not be called in the reset
process.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09 11:33:13 -05:00
Yunsheng Lin
6f2af42955 net: hns3: refactor the hclge_get/set_rss_tuple function
This patch refactors the hclge_get/set_rss_tuple function
in order to fix the rss configuration loss problem during
reset process.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09 11:33:13 -05:00
Yunsheng Lin
89523cfaa5 net: hns3: refactor the hclge_get/set_rss function
This patch refactors the hclge_get/set_rss function in
order to fix the rss configuration loss problem during
reset process.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09 11:33:13 -05:00
Edward Cree
42356d9a13 sfc: support RSS spreading of ethtool ntuple filters
Use a linked list to associate user-facing context IDs with FW-facing
 context IDs (since the latter can change after an MC reset).

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08 21:54:52 -05:00
Prasad Kanneganti
cecd8d81ac liquidio: avoid doing useless work
Avoid doing useless work by making sure that the response_list is not empty
before scheduling work to process it.

Signed-off-by: Prasad Kanneganti <prasad.kanneganti@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08 21:46:12 -05:00
Intiyaz Basha
fcbedd0f29 liquidio: Resolved mbox read issue while reading more than one 64bit data
Corrected length check when data received in the mbox is more than one
64 bit data value

Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08 21:45:46 -05:00
David S. Miller
fd372a7a9e mlx5-updates-2018-02-28-2 (IPSec-2)
This series follows our previous one to lay out the foundations for IPSec
 in user-space and extend current kernel netdev IPSec support. As noted in
 our previous pull request cover letter "mlx5-updates-2018-02-28-1 (IPSec-1)",
 the IPSec mechanism will be supported through our flow steering mechanism.
 Therefore, we need to change the initialization order. Furthermore, IPsec
 is also supported in both egress and ingress. Since our current flow
 steering is egress only, we add an empty (only implemented through FPGA
 steering ops) egress namespace to handle that case. We also implement
 the required flow steering callbacks and logic in our FPGA driver.
 
 We extend the FPGA support for ESN and modifying a xfrm too. Therefore, we
 add support for some new FPGA command interface that supports them. The
 other required bits are added too. The new features and requirements are
 advertised via cap bits.
 
 Last but not least, we revise our driver's accel_esp API. This API will be
 shared between our netdev and IB driver, so we need to have all the required
 functionality from both worlds.
 
 Regards,
 Aviad and Matan
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Merge tag 'mlx5-updates-2018-02-28-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

Saeed Mahameed says:

====================
mlx5-updates-2018-02-28-2 (IPSec-2)

This series follows our previous one to lay out the foundations for IPSec
in user-space and extend current kernel netdev IPSec support. As noted in
our previous pull request cover letter "mlx5-updates-2018-02-28-1 (IPSec-1)",
the IPSec mechanism will be supported through our flow steering mechanism.
Therefore, we need to change the initialization order. Furthermore, IPsec
is also supported in both egress and ingress. Since our current flow
steering is egress only, we add an empty (only implemented through FPGA
steering ops) egress namespace to handle that case. We also implement
the required flow steering callbacks and logic in our FPGA driver.

We extend the FPGA support for ESN and modifying a xfrm too. Therefore, we
add support for some new FPGA command interface that supports them. The
other required bits are added too. The new features and requirements are
advertised via cap bits.

Last but not least, we revise our driver's accel_esp API. This API will be
shared between our netdev and IB driver, so we need to have all the required
functionality from both worlds.

Regards,
Aviad and Matan
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08 14:43:48 -05:00
Thomas Falcon
18b8d6bbad ibmvnic: Do not disable device during failover or partition migration
During a device failover or partition migration reset, it is not
necessary to disable the backing adapter since it should not be
running yet and its Command-Response Queue is closed. Sending
device commands during this time could result in an error or
timeout disrupting the reset process. In these cases, just halt
transmissions, clean up resources, and continue with reset.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08 12:51:45 -05:00
Thomas Falcon
01d9bd792d ibmvnic: Reorganize device close
Introduce a function to halt network operations and clean up any
unused or outstanding socket buffers. Then, during device close,
disable backing adapter before halting all queues and performing
cleanup. This ensures all backing device operations will be
stopped before the driver cleans up shared resources.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08 12:51:45 -05:00
Thomas Falcon
f873866a05 ibmvnic: Clean up device close
Remove some dead code now that RX pools are being cleaned. This
was included to wait until any pending RX queue interrupts are
processed, but NAPI polling should be disabled by this point.

Another minor change is to use the net device parameter for any
print functions instead of accessing it from the adapter structure.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08 12:51:45 -05:00
Peng Li
cc719218e9 net: hns3: add support for VF driver inner interface hclgevf_ops.get_tqps_and_rss_info
This patch adds support for VF driver inner interface
hclgevf_ops.get_tqps_and_rss_info. This interface will be
used in the initialization process.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08 11:23:37 -05:00
Peng Li
678335a123 net: hns3: set the max ring num when alloc netdev
HNS3 driver should alloc netdev with max support ring num, as
driver support change netdev count by ethtool -L.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08 11:23:37 -05:00
Peng Li
814e0274fd net: hns3: fix the queue id for tqp enable&&reset
Command HCLGE_OPC_CFG_COM_TQP_QUEUE should use queue id in the
function, but command HCLGE_OPC_RESET_TQP_QUEUE should use global
queue id.
This patch fixes the queue id about queue enable/disable/reset.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08 11:23:37 -05:00
Peng Li
f18f0d4d68 net: hns3: fix endian issue when PF get mbx message flag
This patch fixes the endian issue when PF get mbx message flag.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08 11:23:37 -05:00
Peng Li
090e3b5350 net: hns3: set the cmdq out_vld bit to 0 after used
Driver check the out_vld bit when get a new cmdq BD, if the bit is 1,
the BD is valid. driver Should set the bit 0 after used and hw will
set the bit 1 if get a valid BD.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08 11:23:36 -05:00
Peng Li
f5e084b827 net: hns3: VF should get the real rss_size instead of rss_size_max
VF driver should get the real rss_size which is assigned
by host PF, not rss_size_max.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08 11:23:36 -05:00
Leon Romanovsky
31135eb388 net/mlx5: Fix wrongly assigned CQ reference counter
The kernel compiled with CONFIG_REFCOUNT_FULL produces the following
error. The reason to it that initial value of refcount_t is supposed
to be more than 0, change it.

[    3.106634] ------------[ cut here ]------------
[    3.107756] refcount_t: increment on 0; use-after-free.
[    3.109130] WARNING: CPU: 0 PID: 1 at lib/refcount.c:153 refcount_inc+0x27/0x30
[    3.110085] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.16.0-rc1-00028-gf683e04bdccc #137
[    3.110085] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.7.5-0-ge51488c-20140602_164612-nilsson.home.kraxel.org 04/01/2014
[    3.110085] RIP: 0010:refcount_inc+0x27/0x30
[    3.110085] RSP: 0000:ffffaa620000fba0 EFLAGS: 00010286
[    3.110085] RAX: 0000000000000000 RBX: ffff9a6d1a1821c8 RCX: ffffffff98a50f48
[    3.110085] RDX: 0000000000000001 RSI: 0000000000000086 RDI: 0000000000000246
[    3.110085] RBP: ffff9a6d1ac800a0 R08: 0000000000000289 R09: 000000000000000a
[    3.110085] R10: fffff03bc0682840 R11: ffffffff9949856d R12: ffff9a6d1b4a4000
[    3.110085] R13: 0000000000000000 R14: ffff9a6d1a0a6c00 R15: ffffaa620000fc5c
[    3.110085] FS:  0000000000000000(0000) GS:ffff9a6d1fc00000(0000) knlGS:0000000000000000
[    3.110085] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.110085] CR2: 0000000000000000 CR3: 000000000ba0a000 CR4: 00000000000006b0
[    3.110085] Call Trace:
[    3.110085]  mlx5_core_create_cq+0xde/0x250
[    3.110085]  ? __kmalloc+0x1ce/0x1e0
[    3.110085]  mlx5e_create_cq+0x15c/0x1e0
[    3.110085]  mlx5e_open_drop_rq+0xea/0x190
[    3.110085]  mlx5e_attach_netdev+0x53/0x140
[    3.110085]  mlx5e_attach+0x3d/0x60
[    3.110085]  mlx5e_add+0x11d/0x2f0
[    3.110085]  mlx5_add_device+0x77/0x170
[    3.110085]  mlx5_register_interface+0x74/0xc0
[    3.110085]  ? set_debug_rodata+0x11/0x11
[    3.110085]  init+0x67/0x72
[    3.110085]  ? mlx4_en_init_ptys2ethtool_map+0x346/0x346
[    3.110085]  do_one_initcall+0x98/0x147
[    3.110085]  ? set_debug_rodata+0x11/0x11
[    3.110085]  kernel_init_freeable+0x164/0x1e0
[    3.110085]  ? rest_init+0xb0/0xb0
[    3.110085]  kernel_init+0xa/0x100
[    3.110085]  ret_from_fork+0x35/0x40
[    3.110085] Code: 00 00 00 00 e8 ab ff ff ff 84 c0 74 02 f3 c3 80 3d 3b c3 64 01 00 75 f5 48 c7 c7 68 0b 81 98 c6 05 2b c3 64 01 01 e8 79 d7 a3 ff <0f> ff c3 66 0f 1f 44 00 00 8b 06 83 f8 ff 74 39 31 c9 39 f8 89
[    3.110085] ---[ end trace a0068e1c68438a74 ]---

Fixes: f105b45bf7 ("net/mlx5: CQ hold/put API")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07 15:54:36 -08:00
Aviad Yehezkel
cb01008390 net/mlx5: IPSec, Add support for ESN
Currently ESN is not supported with IPSec device offload.

This patch adds ESN support to IPsec device offload.
Implementing new xfrm device operation to synchronize offloading device
ESN with xfrm received SN. New QP command to update SA state at the
following:

           ESN 1                    ESN 2                  ESN 3
|-----------*-----------|-----------*-----------|-----------*
^           ^           ^           ^           ^           ^

^ - marks where QP command invoked to update the SA ESN state
    machine.
| - marks the start of the ESN scope (0-2^32-1). At this point move SA
    ESN overlap bit to zero and increment ESN.
* - marks the middle of the ESN scope (2^31). At this point move SA
    ESN overlap bit to one.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Yossef Efraim <yossefe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07 15:54:36 -08:00
Aviad Yehezkel
75ef3f5515 net/mlx5e: Added common function for to_ipsec_sa_entry
New function for getting driver internal sa entry from xfrm state.
All checks are done in one function.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07 15:54:35 -08:00
Aviad Yehezkel
05564d0ae0 net/mlx5: Add flow-steering commands for FPGA IPSec implementation
In order to add a context to the FPGA, we need to get both the software
transform context (which includes the keys, etc) and the
source/destination IPs (which are included in the steering
rule). Therefore, we register new set of firmware like commands for
the FPGA. Each time a rule is added, the steering core infrastructure
calls the FPGA command layer. If the rule is intended for the FPGA,
it combines the IPs information with the software transformation
context and creates the respective hardware transform.
Afterwards, it calls the standard steering command layer.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07 15:54:35 -08:00
Aviad Yehezkel
d6c4f0298c net/mlx5: Refactor accel IPSec code
The current code has one layer that executed FPGA commands and
the Ethernet part directly used this code. Since downstream patches
introduces support for IPSec in mlx5_ib, we need to provide some
abstractions. This patch refactors the accel code into one layer
that creates a software IPSec transformation and another one which
creates the actual hardware context.
The internal command implementation is now hidden in the FPGA
core layer. The code also adds the ability to share FPGA hardware
contexts. If two contexts are the same, only a reference count
is taken.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07 15:54:34 -08:00
Aviad Yehezkel
af9fe19d66 net/mlx5: Added required metadata capability for ipsec
Currently our device requires additional metadata in packet
to perform ipsec crypto offload.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07 15:54:34 -08:00
Aviad Yehezkel
1d2005e204 net/mlx5: Export ipsec capabilities
We will need that for ipsec verbs.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07 15:54:30 -08:00
Aviad Yehezkel
65802f4800 net/mlx5: IPSec, Add command V2 support
This patch adds V2 command support.
New fpga devices support extended features (udp encap, esn etc...), this
features require new hardware sadb format therefore we have a new version
of commands to manipulate it.

Signed-off-by: Yossef Efraim <yossefe@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07 15:53:18 -08:00
Yossi Kuperman
788a821076 net/mlx5e: IPSec, Add support for ESP trailer removal by hardware
Current hardware decrypts and authenticates incoming ESP packets.
Subsequently, the software extracts the nexthdr field, truncates the
trailer and adjusts csum accordingly.

With this patch and a capable device, the trailer is being removed
by the hardware and the nexthdr field is conveyed via PET. This way
we avoid both the need to access the trailer (cache miss) and to
compute its relative checksum, which significantly improve
the performance.

Experiment shows that trailer removal improves the performance by
2Gbps, (netperf). Both forwarding and host-to-host configurations.

Signed-off-by: Yossi Kuperman <yossiku@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07 15:53:18 -08:00
Yossi Kuperman
581fdddee4 net/mlx5: IPSec, Generalize sandbox QP commands
The current code assume only SA QP commands.
Refactor in order to pave the way for new QP commands:
1. Generic cmd response format.
2. SA cmd checks are in dedicated functions.
3. Aligned debug prints.

Signed-off-by: Yossi Kuperman <yossiku@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-03-07 15:53:17 -08:00
Saeed Mahameed
d83a69c2b1 net/mlx5: Use MLX5_IPSEC_DEV macro for ipsec caps
Fix build break of mlx5_accel_ipsec_device_caps is not defined when
MLX5_ACCEL is not selected, use MLX5_IPSEC_DEV instead which handles
such case.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reported-by: Doug Ledford <dledford@redhat.com>
2018-03-07 15:49:19 -08:00
Gustavo A. R. Silva
c33b3b9fcf cxgb3: remove VLA usage
Remove VLA usage and change the 'len' argument to a u8 and use a 256
byte buffer on the stack. Notice that these lengths are limited by the
encoding field in the VPD structure, which is a u8 [1].

[1] https://marc.info/?l=linux-netdev&m=152044354814024&w=2

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 15:55:50 -05:00
Maxime Chevallier
10fea26ce2 net: mvpp2: Add support for unicast filtering
Marvell PPv2 controller can be used to implement packet filtering based
on the destination MAC address. This is already used to implement
multicast filtering. This patch adds support for Unicast filtering.

Filtering is based on so-called "TCAM entries" to implement filtering.
Due to their limited number and the fact that these are also used for
other purposes, we reserve 80 entries for both unicast and multicast
filters. On top of the broadcast address, and each interface's own MAC
address, we reserve 25 entries per port, 4 for unicast filters, 21 for
multicast.

Whenever unicast or multicast range for one port is full, the filtering
is disabled and port goes into promiscuous mode for the given type of
addresses.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 15:53:39 -05:00
Maxime Chevallier
ce2a27c761 net: mvpp2: Simplify MAC filtering function parameters
The mvpp2_prs_mac_da_accept function takes into parameter both the
struct representing the controller and the port id. This is meaningful
when we want to create TCAM entries for non-initialized ports, but in
this case we expect the port to be initialized before starting adding or
removing MAC addresses to the per-port filter.

This commit changes the function so that it takes struct mvpp2_port as
a parameter instead.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 15:53:39 -05:00
David S. Miller
bcde6b725f mlx5-updates-2018-02-28-1 (IPSec-1)
This series consists of some fixes and refactors for the mlx5 drivers,
 especially around the FPGA and flow steering. Most of them are trivial
 fixes and are the foundation of allowing IPSec acceleration from user-space.
 
 We use flow steering abstraction in order to accelerate IPSec packets.
 When a user creates a steering rule, [s]he states that we'll carry an
 encrypt/decrypt flow action (using a specific configuration) for every
 packet which conforms to a certain match. Since currently offloading these
 packets is done via FPGA, we'll add another set of flow steering ops.
 These ops will execute the required FPGA commands and then call the
 standard steering ops.
 
 In order to achieve this, we need that the commands will get all the
 required information. Therefore, we pass the fte object and embed the
 flow_action struct inside the fte. In addition, we add the shim layer
 that will later be used for alternating between the standard and the
 FPGA steering commands.
 
 Some fixes, like " net/mlx5e: Wait for FPGA command responses with a timeout"
 are very relevant for user-space applications, as these applications could
 be killed, but we still want to wait for the FPGA and update the kernel's
 database.
 
 Regards,
 Aviad and Matan
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Merge tag 'mlx5-updates-2018-02-28-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

Saeed Mahameed says:

====================
mlx5-updates-2018-02-28-1 (IPSec-1)

This series consists of some fixes and refactors for the mlx5 drivers,
especially around the FPGA and flow steering. Most of them are trivial
fixes and are the foundation of allowing IPSec acceleration from user-space.

We use flow steering abstraction in order to accelerate IPSec packets.
When a user creates a steering rule, [s]he states that we'll carry an
encrypt/decrypt flow action (using a specific configuration) for every
packet which conforms to a certain match. Since currently offloading these
packets is done via FPGA, we'll add another set of flow steering ops.
These ops will execute the required FPGA commands and then call the
standard steering ops.

In order to achieve this, we need that the commands will get all the
required information. Therefore, we pass the fte object and embed the
flow_action struct inside the fte. In addition, we add the shim layer
that will later be used for alternating between the standard and the
FPGA steering commands.

Some fixes, like " net/mlx5e: Wait for FPGA command responses with a timeout"
are very relevant for user-space applications, as these applications could
be killed, but we still want to wait for the FPGA and update the kernel's
database.

Regards,
Aviad and Matan
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07 15:28:13 -05:00