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Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Updating Congestion Channel/Priority Map in Congestion Manager Context
for T6. In T6 port 0 is mapped to channel 0 and port 1 is mapped to
channel 1. For 2 port T4/T5 adapter, port 0 is mapped to channel 0,1 and
port 1 is mapped to channel 2,3
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Ingress padding boundary values got changed for T6.
T5: 0=32B 1=64B 2=128B 3=256B 4=512B 5=1024B 6=2048B 7=4096B
T6: 0=8B 1=16B 2=32B 3=64B 4=128B 5=128B 6=256B 7=512B
Updating the driver to set the correct boundary values in SGE_CONTROL to
32B.
Also, need to take care of this fl alignment change when calculating the
next packet offset.
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Updated pm_stats code to display input FIFO wait (index 5) and read
latency (index 7) counters for T6 adapters
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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kobj_to_dev has been defined in linux/device.h, so I replace to_dev
with it.
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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to_dev is not used anymore so drop it.
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The 6320 family of switch chips has a second bank for statistics, but
is missing three statistics in the port registers. Generalise and
extend the code:
* adding a field to the statistics table indicating the bank/register
set where each statistics is.
* add a function indicating if an individual statistics
is available on this device
* calculate at run time the sset_count.
* return strings based on the available statistics of the device
* return statistics based on the available statistics of the device
* Add support for reading from the second bank.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Bert Kenward says:
====================
sfc: additional virtual function support
This introduces the client side of a mechanism to defer authorisation of
operations, for example multicast subscription. Although primarily aimed at
SRIOV VFs this can also apply to unprivileged PFs.
Also handle reboot ordering corner cases better and reduce the level of some
logging.
v2: remove #ifdef DEBUG around new WARN_ON in mcdi.c.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Depending on configuration the NIC may return errors for unprivileged
functions and/or VFs. Where these are expected and handled, reduce the
level of any output.
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When running in an unprivileged function we expect some MC commands
to fail with permission errors. To avoid log spew downgrade these to
debug only.
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There are situations - mostly reset related - where our view of the
filter table differs from the hardware. In this case we may try and
remove filters that aren't actually installed. This isn't that
interesting in most situations, so downgrade the logging.
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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For unprivileged functions operations can be authorised by an admin
function. Extra steps are introduced to the MCDI protocol in this
situation - the initial response from the MCDI tells us that the
operation has been deferred, and we must retry when told. We then
receive an event telling us to retry.
Note that this provides only the functionality for the unprivileged
functions, not the handling of the administrative side.
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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After reboot the vswitch configuration from the PF may not be
complete before the VF attempts to restore filters. In that
case we see NO_EVB_PORT errors from the MC. Retry up to a time
limit or until a different result is seen.
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Hariprasad Shenai says:
====================
Trivial enhancements for cxgb4
This series adds a debug message if adapter isn't inserted in right PCI
slot. Changes naming conventions for iSCSI rx queues, use node info while
allocating rx queue and use napi_complete_done() api in napi handler.
This patch series has been created against net-next tree and includes
patches on cxgb4 driver.
We have included all the maintainers of respective drivers. Kindly review
the change and let us know in case of any review comments.
Thanks
V2: Dropped 'dcb_info' debug entry patch, since the same can be achieved
using lldp tool.
Based on review comments by Or Gerlitz <gerlitz.or@gmail.com> and
David Miller.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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All the upper level protocols like rdma, iscsi have their own offload rx
queues, so instead of using the generic naming convention be specific
while naming them. Improves code readability
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Check if the device get enough bandwidth from the entire PCI chain to
satisfy its capabilities. This patch determines the PCIe device's
bandwidth capabilities by reading its PCIe Link Capabilities registers
and then call the pcie_get_minimum_link function to ensure that the
adapter is hooked into a slot which is capable of providing the
necessary bandwidth capabilities.
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Florian Westphal says:
====================
tcp: honour SO_BINDTODEVICE for TW_RST case too
This is V2, this time as a small series since I followed Erics advice
to split this into smaller chunks, I hope this makes it easier to
review.
First patch adds inet_sk_transparent helper.
Second patch contains an if/else swap that I split from the
original TW_RST v1 one.
Third patch is the actual change without the superfluous sock_net change.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Hannes points out that when we generate tcp reset for timewait sockets we
pretend we found no socket and pass NULL sk to tcp_vX_send_reset().
Make it cope with inet tw sockets and then provide tw sk.
This makes RSTs appear on correct interface when SO_BINDTODEVICE is used.
Packetdrill test case:
// want default route to be used, we rely on BINDTODEVICE
`ip route del 192.0.2.0/24 via 192.168.0.2 dev tun0`
0.000 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
// test case still works due to BINDTODEVICE
0.001 setsockopt(3, SOL_SOCKET, SO_BINDTODEVICE, "tun0", 4) = 0
0.100...0.200 connect(3, ..., ...) = 0
0.100 > S 0:0(0) <mss 1460,sackOK,nop,nop>
0.200 < S. 0:0(0) ack 1 win 32792 <mss 1460,sackOK,nop,nop>
0.200 > . 1:1(0) ack 1
0.210 close(3) = 0
0.210 > F. 1:1(0) ack 1 win 29200
0.300 < . 1:1(0) ack 2 win 46
// more data while in FIN_WAIT2, expect RST
1.300 < P. 1:1001(1000) ack 1 win 46
// fails without this change -- default route is used
1.301 > R 1:1(0) win 0
Reported-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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tcp_md5_do_lookup requires a full socket, so once we extend
_send_reset() to also accept timewait socket we would have to change
if (!sk && hash_location)
to something like
if ((!sk || !sk_fullsock(sk)) && hash_location) {
...
} else {
(sk && sk_fullsock(sk)) tcp_md5_do_lookup()
}
Switch the two branches: check if we have a socket first, then
fall back to a listener lookup if we saw a md5 option (hash_location).
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Avoids cluttering tcp_v4_send_reset when followup patch extends
it to deal with timewait sockets.
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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KASan reported use-after-free for the hwmon structure. So fix this by
using devm_kzalloc and let the core take care about freeing the memory
during device dettach.
Reported-by: Ido Schimmel <idosch@mellanox.com>
Fixes: 89309da39 ("mlxsw: core: Implement temperature hwmon interface")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When closing a listen socket, tcp_abort currently calls
tcp_done without clearing the request queue. If the socket has a
child socket that is established but not yet accepted, the child
socket is then left without a parent, causing a leak.
Fix this by setting the socket state to TCP_CLOSE and calling
inet_csk_listen_stop with the socket lock held, like tcp_close
does.
Tested using net_test. With this patch, calling SOCK_DESTROY on a
listen socket that has an established but not yet accepted child
socket results in the parent and the child being closed, such
that they no longer appear in sock_diag dumps.
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add another sysfs hwmon attribute to expose possibility to reset
temperature sensors history.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It looks like an attempt to use CPU notifier here which was never
completed. Nobody tried to wire it up completely since 2k9. So I unwind
this code and get rid of everything not required. Oh look! 19 lines were
removed while code still does the same thing.
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use to_net_dev() instead of open-coding it.
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:
====================
100GbE Intel Wired LAN Driver Updates 2015-12-22
This series contains updates to fm10k only.
Bruce cleans up the initialization of fm10k_workqueue at the global level,
which fixes a checkpatch.pl error. Made several other cleanups of the
driver, like making structures that do not change constant, remove unused
code, cleanup code comments and use boolean states true/false instead of
an integer since a bool is all that is needed.
Jacob fixed the TLV format for little endian structures which are 4 byte
aligned copy, so add an additional __aligned(4) and __packed to ensure
that these structures are actually 4 byte aligned and packed correctly.
Updated the driver to use ether_addr_equal() instead of memcmp() to
compare MAC addresses.
Alex Duyck cleans up the exception handling so all of the paths result in
a similar state if we fail. Specifically the driver will now unload the
mailbox interrupt, free the queue vectors and MSI-X, and then detach the
interface.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Tri-states need 'if IS_ENABLED()', booleans should use 'ifdef'.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Cleanup a number of issues with function header comments, lower-case
acronyms (i.e. FIFO, TLV), duplicate comments and a stubbed-out header
comment for fm10k_sm_mbx_init.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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These structures never change so declare them as const.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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When comparing MAC addresses, use ether_addr_equal instead of memcmp to
ETH_ALEN length. Found and replaced using the following sed:
sed -e 's/memcmp\x28\(.*\), ETH_ALEN\x29/!ether_addr_equal\x28\1\x29/'
Reported-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This patch is meant to cleanup the exception handling for the paths where
we reset the interrupts and then reconfigure them. In all of these paths
we had very different levels of exception handling. I have updated the
driver so that all of the paths should result in a similar state if we
fail.
Specifically the driver will now unload the mailbox interrupt, free the
queue vectors and MSI-X, and then detach the interface.
In addition for any of the PCIe related resets I have added a check with
the hw_ready function to just make sure the registers are in a readable
state prior to reopening the interface.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The TLV format for little endian structures is actually 4 byte aligned
copy. To this end, we need to add an additional __aligned(4) marker
along with __packed to ensure that these structures are actually 4 byte
aligned and packed correctly. Use of just __packed will not work as this
will result in 1byte alignment which is incorrect. Add a comment
explaining the reasoning behind why these structures need the special
treatment.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Cleans up checkpatch GLOBAL_INITIALIZERS error
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This is an API consolidation only. The use of kmalloc + memset to 0
is equivalent to kcalloc in this case as it is allocating an array
of elements.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A cleanup patch I did was unfortunately wrong and introduced
multiple serious bugs in the netcp rx processing, as indicated
by these correct gcc warnings:
drivers/net/ethernet/ti/netcp_core.c:776:14: warning: 'buf_ptr' may be used uninitialized in this function [-Wuninitialized]
drivers/net/ethernet/ti/netcp_core.c:687:14: warning: 'ptr' may be used uninitialized in this function [-Wuninitialized]
I have checked the patch once more and found that a call to
get_pkt_info() accidentally got removed in netcp_free_rx_desc_chain,
and netcp_process_one_rx_packet no longer retrieved the correct
buffer length. This patch should fix all the known problems,
but I did not test on real hardware.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 899077791403 ("netcp: try to reduce type confusion in descriptors")
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since it is possible for an external system to send oversize packets
at anytime, it is best for driver not to print a message and spam
the log (potential external DoS).
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=109471
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Adding support for SYN_RECV request sockets to tcp_abort()
is quite easy after our tcp listener rewrite.
Note that we also need to better handle listeners, or we might
leak not yet accepted children, because of a missing
inet_csk_listen_stop() call.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Lorenzo Colitti <lorenzo@google.com>
Tested-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Daniel Borkmann says:
====================
Misc BPF updates
This series contains a couple of misc updates to the BPF code, besides
others a new helper bpf_skb_load_bytes(), moving clearing of A/X to the
classic converter, etc. Please see individual patches for details.
Thanks!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add couple of test cases for interpreter but also JITs, f.e. to test that
when imm32 moves are being done, upper 32bits of the regs are being zero
extended.
Without JIT:
[...]
[ 1114.129301] test_bpf: #43 MOV REG64 jited:0 128 PASS
[ 1114.130626] test_bpf: #44 MOV REG32 jited:0 139 PASS
[ 1114.132055] test_bpf: #45 LD IMM64 jited:0 124 PASS
[...]
With JIT (generated code can as usual be nicely verified with the help of
bpf_jit_disasm tool):
[...]
[ 1062.726782] test_bpf: #43 MOV REG64 jited:1 6 PASS
[ 1062.726890] test_bpf: #44 MOV REG32 jited:1 6 PASS
[ 1062.726993] test_bpf: #45 LD IMM64 jited:1 6 PASS
[...]
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When sometimes structs or variables need to be initialized/'memset' to 0 in
an eBPF C program, the x86 BPF JIT converts this to use immediates. We can
however save a couple of bytes (f.e. even up to 7 bytes on a single emmission
of BPF_LD | BPF_IMM | BPF_DW) in the image by detecting such case and use xor
on the dst register instead.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Comment says "User BPF's register A is mapped to our BPF register 6",
which is actually wrong as the mapping is on register 0. This can
already be inferred from the code itself. So just remove it before
someone makes assumptions based on that. Only code tells truth. ;)
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Back in the days where eBPF (or back then "internal BPF" ;->) was not
exposed to user space, and only the classic BPF programs internally
translated into eBPF programs, we missed the fact that for classic BPF
A and X needed to be cleared. It was fixed back then via 83d5b7ef99c9
("net: filter: initialize A and X registers"), and thus classic BPF
specifics were added to the eBPF interpreter core to work around it.
This added some confusion for JIT developers later on that take the
eBPF interpreter code as an example for deriving their JIT. F.e. in
f75298f5c3fe ("s390/bpf: clear correct BPF accumulator register"), at
least X could leak stack memory. Furthermore, since this is only needed
for classic BPF translations and not for eBPF (verifier takes care
that read access to regs cannot be done uninitialized), more complexity
is added to JITs as they need to determine whether they deal with
migrations or native eBPF where they can just omit clearing A/X in
their prologue and thus reduce image size a bit, see f.e. cde66c2d88da
("s390/bpf: Only clear A and X for converted BPF programs"). In other
cases (x86, arm64), A and X is being cleared in the prologue also for
eBPF case, which is unnecessary.
Lets move this into the BPF migration in bpf_convert_filter() where it
actually belongs as long as the number of eBPF JITs are still few. It
can thus be done generically; allowing us to remove the quirk from
__bpf_prog_run() and to slightly reduce JIT image size in case of eBPF,
while reducing code duplication on this matter in current(/future) eBPF
JITs.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Tested-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Cc: Zi Shen Lim <zlim.lnx@gmail.com>
Cc: Yang Shi <yang.shi@linaro.org>
Acked-by: Yang Shi <yang.shi@linaro.org>
Acked-by: Zi Shen Lim <zlim.lnx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When hacking tc programs with eBPF, one of the issues that come up
from time to time is to load addresses from headers. In eBPF as in
classic BPF, we have BPF_LD | BPF_ABS | BPF_{B,H,W} instructions that
extract a byte, half-word or word out of the skb data though helpers
such as bpf_load_pointer() (interpreter case).
F.e. extracting a whole IPv6 address could possibly look like ...
union v6addr {
struct {
__u32 p1;
__u32 p2;
__u32 p3;
__u32 p4;
};
__u8 addr[16];
};
[...]
a.p1 = htonl(load_word(skb, off));
a.p2 = htonl(load_word(skb, off + 4));
a.p3 = htonl(load_word(skb, off + 8));
a.p4 = htonl(load_word(skb, off + 12));
[...]
/* access to a.addr[...] */
This work adds a complementary helper bpf_skb_load_bytes() (we also
have bpf_skb_store_bytes()) as an alternative where the same call
would look like from an eBPF program:
ret = bpf_skb_load_bytes(skb, off, addr, sizeof(addr));
Same verifier restrictions apply as in ffeedafbf023 ("bpf: introduce
current->pid, tgid, uid, gid, comm accessors") case, where stack memory
access needs to be statically verified and thus guaranteed to be
initialized in first use (otherwise verifier cannot tell whether a
subsequent access to it is valid or not as it's runtime dependent).
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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