- 23 Jul, 2020 40 commits
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Paolo Abeni authored
So that we can easily perform some basic PM-related adimission checks before creating the child socket. Reviewed-by:
Mat Martineau <mathew.j.martineau@linux.intel.com> Tested-by:
Christoph Paasch <cpaasch@apple.com> Signed-off-by:
Paolo Abeni <pabeni@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Paolo Abeni authored
tcp_send_active_reset() is more prone to transient errors (memory allocation or xmit queue full): in stress conditions the kernel may drop the egress packet, and the client will be stuck. Reviewed-by:
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Paolo Abeni authored
When syncookie are in use, the TCP stack may feed into subflow_syn_recv_sock() plain TCP request sockets. We can't access mptcp_subflow_request_sock-specific fields on such sockets. Explicitly check the rsk ops to do safe accesses. Reviewed-by:
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Paolo Abeni authored
The mentioned function has several unneeded branches, handle each case - MP_CAPABLE, MP_JOIN, fallback - under a single conditional and drop quite a bit of duplicate code. Reviewed-by:
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Paolo Abeni authored
Currently accepted msk sockets become established only after accept() returns the new sk to user-space. As MP_JOIN request are refused as per RFC spec on non fully established socket, the above causes mp_join self-tests instabilities. This change lets the msk entering the established status as soon as it receives the 3rd ack and propagates the first subflow fully established status on the msk socket. Finally we can change the subflow acceptance condition to take in account both the sock state and the msk fully established flag. Reviewed-by:
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Paolo Abeni authored
In the unlikely event of a failure at connect time, we currently clear the request_mptcp flag - so that the MPC handshake is not started at all, but the msk is not explicitly marked as fallback. This would lead to later insertion of wrong DSS options in the xmitted packets, in violation of RFC specs and possibly fooling the peer. Fixes: e1ff9e82 ("net: mptcp: improve fallback to TCP") Reviewed-by:
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Paolo Abeni authored
When updating a partially acked data fragment, we actually corrupt it. This is irrelevant till we send data on a single subflow, as retransmitted data, if any are discarded by the peer as duplicate, but it will cause data corruption as soon as we will start creating non backup subflows. Reviewed-by:
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Paolo Abeni authored
Currently we do not init the subflow write sequence for MP_JOIN subflows. This will cause bad mapping being generated as soon as we will use non backup subflow. Reviewed-by:
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Jakub Kicinski authored
Check MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_TRUSTED, before setting the info, which will hopefully protect us from -EPERM errors the previous code was gracefully ignoring. Ed reports this is not the 100% correct bit, but it's the best approximation we have. Shared code reports the port information back to user space, so we really want to know what was added and what failed. Ignoring -EPERM is not an option. The driver does not call udp_tunnel_get_rx_info(), so its own management of table state is not really all that problematic, we can leave it be. This allows the driver to continue with its copious table syncing, and matching the ports to TX frames, which it will reportedly do one day. Leave the feature checking in the callbacks, as the device may remove the capabilities on reset. Inline the loop from __efx_ef10_udp_tnl_lookup_port() into efx_ef10_udp_tnl_has_port(), since it's the only caller now. With new infra this driver gains port replace - when space frees up in a full table a new port will be selected for offload. Plus efx will no longer sleep in an atomic context. v2: - amend the commit message about TRUSTED not being 100% - add TUNNEL_ENCAP_UDP_PORT_ENTRY_INVALID to mark unsed entries Signed-off-by:
Jakub Kicinski <kuba@kernel.org> Acked-By:
Edward Cree <ecree@solarflare.com> Signed-off-by:
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David S. Miller authored
Alexander Lobakin says: ==================== qed, qede: improve chain API and add XDP_REDIRECT support This series adds missing XDP_REDIRECT case handling in QLogic Everest Ethernet driver with all necessary prerequisites and ops. QEDE Tx relies heavily on chain API, so make sure it is in its best at first. v2 (from [1]): - add missing includes to #003 to pass the build on Alpha; - no functional changes. [1] https://lore.kernel.org/netdev/20200722155349.747-1-alobakin@marvell.com/ ==================== Signed-off-by:
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Alexander Lobakin authored
Add XDP_REDIRECT case handling and the corresponding NDO to support redirecting XDP frames. This also includes registering driver memory model (currently order-0 page mode) in BPF subsystem. The total number of XDP queues is usually 1:1 with Rx ones. Signed-off-by:
Alexander Lobakin <alobakin@marvell.com> Signed-off-by:
Igor Russkikh <irusskikh@marvell.com> Signed-off-by:
Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by:
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Alexander Lobakin authored
Current XDP Tx logic is suboptimal and can't be reused for XDP_REDIRECT path. Make qede_xdp_{tx_int,xmit}() more universal and effective in general to allow future expanding. Misc: use unlikely() hints where appropriate and replace "fallthrough" comments with pseudo-keywords. Signed-off-by: -
Alexander Lobakin authored
Correct the indentation of net_device_ops declarations for fancier look. Signed-off-by:
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Alexander Lobakin authored
Make the file more readable and easier for adding new fields. Misc: use IFNAMSIZ and netdev_name() instead of sizeof_field() and direct net_device::name dereferencing. Signed-off-by:
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Alexander Lobakin authored
Add reverse-variants of qed_chain_get_elem_left{,u32}() to be able to know current chain occupation. They will be used in the upcoming qede XDP_REDIRECT code. They share most of the logics with the mentioned ones, so were reused to collapse the latters. Signed-off-by: -
Alexander Lobakin authored
Constify chain pointers and refactor qed_chain_get_elem_left{,u32}() a bit. Signed-off-by: -
Alexander Lobakin authored
Extend current infrastructure to store chain page size in a struct and use it in all functions instead of fixed QED_CHAIN_PAGE_SIZE. Its value remains the default one, but can be overridden in qed_chain_init_params before chain allocation. Signed-off-by:
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Alexander Lobakin authored
To simplify qed_chain_alloc() prototype and call sites, introduce struct qed_chain_init_params to specify chain params, and pass a pointer to filled struct to the actual qed_chain_alloc() instead of a long list of separate arguments. Signed-off-by:
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Alexander Lobakin authored
Fill PBL table parameters for chains with an external PBL data earlier on qed_chain_init_params() rather than on allocation itself. This simplifies allocation code and allows to extend struct ext_pbl for other chain types. Signed-off-by:
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Alexander Lobakin authored
qed_chain_init*() are used in one file/place on "cold" path only, so they can be uninlined and moved next to the call sites. Signed-off-by:
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Alexander Lobakin authored
PBL chain elements are actually DMA addresses stored in __le64, but currently their size is hardcoded to 8, and DMA addresses are assigned via cast to variable-sized dma_addr_t without any bitwise conversions. Change the type of pbl_virt array to match the actual one, add a new field to store the size of allocated DMA memory and sanitize elements assignment. Misc: give more logic names to the members of qed_chain::pbl_sp embedded struct. Signed-off-by:
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Alexander Lobakin authored
Zero-initialize chain on qed_chain_free(), so it couldn't be freed twice and provoke undefined behaviour. Signed-off-by:
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Alexander Lobakin authored
Move chain allocation/freeing functions to a new file to not mix it with hardware-related code. Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
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Alexander Lobakin authored
List one entry per line and sort them alphabetically to simplify the addition of the new ones. Signed-off-by:
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Alexander Lobakin authored
Reformat structs and macros definitions a bit prior to making functional changes. Signed-off-by:
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Gustavo A. R. Silva authored
One-element arrays are being deprecated[1]. Replace the one-element array with a simple value type '__le32 reserved1'[2], once it seems this is just a placeholder for alignment. [1] https://github.com/KSPP/linux/issues/79 [2] https://github.com/KSPP/linux/issues/86Tested-by:
Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by:
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Gustavo A. R. Silva authored
One-element arrays are being deprecated[1]. Replace the one-element array with a simple value type 'u8 rsvd'[2], once it seems this is just a placeholder for alignment. [1] https://github.com/KSPP/linux/issues/79 [2] https://github.com/KSPP/linux/issues/86Tested-by:
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Gustavo A. R. Silva authored
One-element arrays are being deprecated[1]. Replace the one-element array with a simple value type 'u32 reserved2'[2], once it seems this is just a placeholder for alignment. [1] https://github.com/KSPP/linux/issues/79 [2] https://github.com/KSPP/linux/issues/86Tested-by:
Michael Chan <michael.chan@broadcom.com> Signed-off-by:
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Colin Ian King authored
Currently when netdev fails to allocate the error return path fails to free the allocated object 'lid'. Fix this by setting err to the return error code and jumping to a new label that performs the kfree of lid before returning. Addresses-Coverity: ("Resource leak") Fixes: 4b03b273 ("ionic: get MTU from lif identity") Signed-off-by:Colin Ian King <colin.king@canonical.com> Acked-by:
Shannon Nelson <snelson@pensando.io> Signed-off-by:
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David S. Miller authored
Tom Parkin says: ==================== l2tp: cleanup checkpatch.pl warnings l2tp hasn't been kept up to date with the static analysis checks offered by checkpatch.pl. This series addresses a range of minor issues which don't involve large changes to code structure. The changes include: * tweaks to use of whitespace, comment style, line breaks, and indentation * two minor modifications to code to use a function or macro suggested by checkpatch v1 -> v2 * combine related patches (patches fixing whitespace issues, patches addressing comment style) * respin the single large patchset into a multiple smaller series for easier review ==================== Reviewed-by:
James Chapman <jchapman@katalix.com> Signed-off-by:
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Tom Parkin authored
checkpatch warned about the L2TP_SKB_CB macro's use of its argument: add braces to avoid the problem. Signed-off-by:
Tom Parkin <tparkin@katalix.com> Signed-off-by:
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Tom Parkin authored
In l2tp_core.c both l2tp_tunnel_create and l2tp_session_create take quite a number of arguments and have a correspondingly long prototype. This is both quite difficult to scan visually, and triggers checkpatch warnings. Add a line break to make these function prototypes more readable. Signed-off-by:
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Tom Parkin authored
checkpatch warns about use of seq_printf where seq_puts would do. Modify l2tp_debugfs accordingly. Signed-off-by:
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Tom Parkin authored
Use BIT(x) rather than (1<<x), reported by checkpatch.pl. Signed-off-by:
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Tom Parkin authored
Reported by checkpatch: "WARNING: function definition argument 'struct sock *' should also have an identifier name" Add an identifier name to help document the prototype. Signed-off-by: -
Tom Parkin authored
l2tp_core has conditionally compiled code in l2tp_xmit_skb for IPv6 support. The structure of this code triggered a checkpatch warning due to incorrect indentation. Fix up the indentation to address the checkpatch warning. Signed-off-by:
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Tom Parkin authored
Arguments should be aligned with the function call open parenthesis as per checkpatch. Tweak some function calls which were not aligned correctly. Signed-off-by:
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Tom Parkin authored
Some l2tp code had line breaks which made the code more difficult to read. These were originally motivated by the 80-character line width coding guidelines, but were actually a negative from the perspective of trying to follow the code. Remove these linebreaks for clearer code, even if we do exceed 80 characters in width in some places. Signed-off-by:
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Tom Parkin authored
Modify some l2tp comments to better adhere to kernel coding style, as reported by checkpatch.pl. Add descriptive comments for the l2tp per-net spinlocks to document their use. Fix an incorrect comment in l2tp_recv_common: RFC2661 section 5.4 states that: "The LNS controls enabling and disabling of sequence numbers by sending a data message with or without sequence numbers present at any time during the life of a session." l2tp handles this correctly in l2tp_recv_common, but the comment around the code was incorrect and confusing. Fix up the comment accordingly. Signed-off-by:
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Tom Parkin authored
Fix up various whitespace issues as reported by checkpatch.pl: * remove spaces around operators where appropriate, * add missing blank lines following declarations, * remove multiple blank lines, or trailing blank lines at the end of functions. Signed-off-by:
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