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Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms and conditions of the gnu general public license
version 2 as published by the free software foundation this program
is distributed in the hope it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 263 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Clang warns:
drivers/net/ethernet/huawei/hinic/hinic_tx.c:392:34: error: implicit
conversion from enumeration type 'enum hinic_l4_tunnel_type' to
different enumeration type 'enum hinic_l4_offload_type'
[-Werror,-Wenum-conversion]
hinic_task_set_tunnel_l4(task, TUNNEL_UDP_NO_CSUM,
~~~~~~~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~~~~~~~~
1 error generated.
It seems that hinic_task_set_tunnel_l4 was meant to take an enum of type
hinic_l4_tunnel_type, not hinic_l4_offload_type, given both the name of
the functions and the values used.
Fixes: cc18a7543d2f ("net-next/hinic: add checksum offload and TSO support")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds checksum offload and TSO support for the HiNIC
driver. Perfomance test (Iperf) shows more than 100% improvement
in TCP streams.
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: Xue Chaojing <xuechaojing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes the problem below. The problem can be reproduced by the
following steps:
1) Connecting all HiNIC interfaces
2) On server side
# sudo ifconfig eth0 192.168.100.1 up #Using MLX CX4 card
# iperf -s
3) On client side
# sudo ifconfig eth0 192.168.100.2 up #Using our HiNIC card
# iperf -c 192.168.101.1 -P 10 -t 100000
after hours of testing, we will see errors:
hinic 0000:05:00.0: No MGMT msg handler, mod = 0
hinic 0000:05:00.0: No MGMT msg handler, mod = 0
hinic 0000:05:00.0: No MGMT msg handler, mod = 0
hinic 0000:05:00.0: No MGMT msg handler, mod = 0
The errors are caused by the following problem.
1) The hinic_get_wqe() checks the "wq->delta" to allocate new WQEs:
if (atomic_sub_return(num_wqebbs, &wq->delta) <= 0) {
atomic_add(num_wqebbs, &wq->delta);
return ERR_PTR(-EBUSY);
}
If the WQE occupies multiple pages, the shadow WQE will be used. Then the
hinic_xmit_frame() fills the WQE.
2) While in parallel with 1), the free_tx_poll() checks the "wq->delta"
to free old WQEs:
if ((atomic_read(&wq->delta) + num_wqebbs) > wq->q_depth)
return ERR_PTR(-EBUSY);
There is a probability that the shadow WQE which hinic_xmit_frame() is
using will be damaged by copy_wqe_to_shadow():
if (curr_pg != end_pg) {
void *shadow_addr = &wq->shadow_wqe[curr_pg * wq->max_wqe_size];
copy_wqe_to_shadow(wq, shadow_addr, num_wqebbs, *cons_idx);
return shadow_addr;
}
This can cause WQE data error and you will see the above error messages.
This patch fixes the problem.
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove the search for index of constant buffer size
Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add transmit operation for sending data by qp operations.
Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Set the io resources in the nic and handle rx events by qp operations.
Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Update the nic about the resources of the queue pairs.
Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Create the resources for queue pair operations: doorbell area,
consumer index address and producer index address.
Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Create work queues for being used by the queue pairs.
Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Create the logical queues of the nic.
Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Thomas Gleixner
Nathan Chancellor
Zhao Chen
Aviad Krawczyk