Commit Graph

974 Commits

Author SHA1 Message Date
Edward Cree
b6d02dd2ff sfc_ef100: helper function to set default RSS table of given size
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:40 -07:00
Edward Cree
b3007dfd5b sfc_ef100: NVRAM selftest support code
We have yet another new scheme for NVRAM, and a corresponding new MCDI.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:40 -07:00
Edward Cree
39c965f4e6 sfc_ef100: populate BUFFER_SIZE_BYTES in INIT_RXQ
The QDMA subsystem on EF100 needs this information.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:40 -07:00
Edward Cree
805d22bf92 sfc_ef100: add EF100 to NIC-revision enumeration
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:40 -07:00
Edward Cree
bcacac7a8c sfc: get drvinfo driver name from outside the common code
Since ethtool_common.o will be built into both sfc and sfc_ef100 drivers,
 it can't use KBUILD_MODNAME directly.  Instead, make it reference a
 string provided by the individual driver code.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:40 -07:00
Edward Cree
31f4cbd401 sfc: initialise RSS context ID to 'no RSS context' in efx_init_struct()
Previously this was only happening in ef10-specific code.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:40 -07:00
Edward Cree
d700fe014e sfc: commonise efx_fini_dmaq
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:40 -07:00
Edward Cree
965470ee76 sfc: factor out efx_mcdi_filter_table_down() from _remove()
_down() merely removes all our filters and VLANs, it doesn't free
 efx->filter_state itself.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:40 -07:00
Edward Cree
79de6e7cb8 sfc: don't call tx_limit_len if NIC type doesn't have one
EF100 doesn't need to split up large DMAs.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:40 -07:00
Edward Cree
a81dcd85a7 sfc: assign TXQs without gaps
Since we only allocate VIs for the number of TXQs we actually need, we
 cannot naively use "channel * TXQ_TYPES + txq" for the TXQ number, as
 this has gaps (when efx->tx_queues_per_channel < EFX_TXQ_TYPES) and
 thus overruns the driver's VI allocations, causing the firmware to
 reject the MC_CMD_INIT_TXQ based on INSTANCE.
Thus, we distinguish INSTANCE (stored in tx_queue->queue) from LABEL
 (tx_queue->label); the former is allocated starting from 0 in
 efx_set_channels(), while the latter is simply the txq type (index in
 channel->tx_queue array).
To simplify things, rather than changing tx_queues_per_channel after
 setting up TXQs, make Siena always probe its HIGHPRI queues at start
 of day, rather than deferring it until tc mqprio enables them.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:40 -07:00
Edward Cree
69a704962e sfc: commonise netif_set_real_num[tr]x_queues calls
While we're at it, also check them for failure.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:40 -07:00
Edward Cree
f9cac93e5b sfc: make tx_queues_per_channel variable at runtime
Siena needs four TX queues (csum * highpri), EF10 needs two (csum),
 and EF100 only needs one (as checksumming is controlled entirely by
 the transmit descriptor).  Rather than having various bits of ad-hoc
 code to decide which queues to set up etc., put the knowledge of how
 many TXQs a channel has in one place.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:40 -07:00
Edward Cree
67e6398e2e sfc: move modparam 'rss_cpus' out of common channel code
Instead of exposing this old module parameter on the new driver (thus
 having to keep it forever after for compatibility), let's confine it
 to the old one; if we find later that we need the feature, we ought
 to support it properly, with ethtool set-channels.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:40 -07:00
Edward Cree
e4ff323210 sfc: move modparam 'interrupt_mode' out of common channel code
EF100 only supports MSI-X, so there's no need for the new driver to
 expose this old module parameter.
Since it's now visible to the linker, we have to rename it internally
 to efx_interrupt_mode to avoid symbol collisions in non-modular
 builds.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:39 -07:00
Edward Cree
bc32442176 sfc: remove max_interrupt_mode
All NICs supported by this driver are capable of MSI-X interrupts (only
 Falcon A1 wasn't, and that's now hived off into its own driver), so no
 need for a nic-type parameter.  Besides, the code that checked it was
 buggy anyway (the following assignment that checked min_interrupt_mode
 overrode it).

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:39 -07:00
Edward Cree
af3c38d3fb sfc: support setting MTU even if not privileged to configure MAC fully
Unprivileged functions (such as VFs) may set their MTU by use of the
 'control' field of MC_CMD_SET_MAC_EXT, as used in efx_mcdi_set_mtu().
If calling efx_ef10_mac_reconfigure() from efx_change_mtu(), and the
 NIC supports the above (SET_MAC_ENHANCED capability), use it rather
 than efx_mcdi_set_mac().

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02 14:47:39 -07:00
Edward Cree
c72ae701ee sfc: don't call tx_remove if there isn't one
EF100 won't have an efx->type->tx_remove method, because there's
 nothing for it to do.  So make the call conditional.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree
f07cb4128a sfc: commonise initialisation of efx->vport_id
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree
d4adc5162b sfc: commonise efx->[rt]xq_entries initialisation
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree
937aa3ae4d sfc: initialise max_[tx_]channels in efx_init_channels()
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree
20e1026cbe sfc: move definition of EFX_MC_STATS_GENERATION_INVALID
Saves a whole #include from nic.c.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree
e7a256858f sfc: factor out efx_tx_tso_header_length() and understand encapsulation
ef100 will need to check this against NIC limits.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree
93841000ed sfc: remove duplicate declaration of efx_enqueue_skb_tso()
Define it in nic_common.h, even though the ef100 driver will have a
 different implementation backing it (actually a WARN_ON_ONCE as it
 should never get called by ef100.  But it needs to still exist because
 common TX path code references it).

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree
740acc15c8 sfc: commonise TSO fallback code
ef100 will need this if it gets GSO skbs it can't handle (e.g. too long
 header length).

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree
80a0074e6a sfc: commonise efx_sync_rx_buffer()
The ef100 RX path will also need to DMA-sync RX buffers.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree
f7e55550a3 sfc: commonise some MAC configuration code
Refactor it a little as we go, and introduce efx_mcdi_set_mtu() which we
 will later use for ef100 to change MTU without touching other MAC settings.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree
2d73515a1c sfc: commonise miscellaneous efx functions
Various left-over bits and pieces from efx.c that are needed by ef100.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree
2c6c1e3cfd sfc: add missing licence info to mcdi_filters.c
Both the licence notice and the SPDX tag were missing from this file.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree
272e53aa5c sfc: commonise MCDI MAC stats handling
Most of it was already declared in mcdi_port_common.h, so just move the
 implementations to mcdi_port_common.c.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree
83d00531cb sfc: move NIC-specific mcdi_port declarations out of common header
These functions are implemented in mcdi_port.c, which will not be linked
 into the EF100 driver; thus their prototypes should not be visible in
 common header files.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 13:09:09 -07:00
Edward Cree
4d9c0a2d64 sfc: extend common GRO interface to support CHECKSUM_COMPLETE
EF100 will use CHECKSUM_COMPLETE, but will also make use of
 efx_rx_packet_gro(), thus needs to be able to pass the checksum value
 into that function.
Drivers for older NICs pass in a csum of 0 to get the old semantics (use
 the RX flags for CHECKSUM_UNNECESSARY marking).

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:37:49 -07:00
Edward Cree
28abe8251b sfc: commonise ARFS handling
EF100 will use the same approach to ARFS as EF10.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:37:49 -07:00
Edward Cree
850b722756 sfc: commonise drain event handling
Avoids a call from generic MCDI code into ef10.c.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:37:49 -07:00
Edward Cree
21ea21252e sfc: commonise PCI error handlers
EF100 will use the same mechanisms for PCI error recovery.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:37:49 -07:00
Edward Cree
66a65128d4 sfc: track which BAR is mapped
EF100 needs to map multiple BARs (sequentially, not concurrently) in
 order to read the Function Control Window during probe.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:37:49 -07:00
Edward Cree
53e1f21abd sfc: commonise FC advertising
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:37:48 -07:00
Edward Cree
5671dd5565 sfc: commonise other ethtool bits
A few more ethtool handlers which EF100 will share.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:37:48 -07:00
Edward Cree
cdec457b7a sfc: commonise ethtool NFC and RXFH/RSS functions
EF100 will share EF10's model of filtering, hashing and spreading.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:37:48 -07:00
Edward Cree
bdccfd2d4e sfc: commonise ethtool link handling functions
Link speeds, FEC, and autonegotiation are all things EF100 will share.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:37:48 -07:00
Edward Cree
9043f48fd3 sfc: split up nic.h
The new nic_common.h contains the inlines for NIC-type function dispatch,
 declarations for NIC-generic functions in nic.c, and other similar NIC-
 generic functionality.  Retained in nic.h are NIC-specific declarations
 such as the siena and ef10 nic_data structs and various farch functions.

The EF100 driver will thus include nic_common.h but not nic.h.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:37:48 -07:00
Edward Cree
d3142c193d sfc: refactor EF10 stats handling
Separate the generation-count handling from the format conversion, to
 make it easier to re-use both for EF100.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:37:48 -07:00
Edward Cree
de5f32e2b6 sfc: don't try to create more channels than we can have VIs
Calculate efx->max_vis at probe time, and check against it in
 efx_allocate_msix_channels() when considering whether to create XDP TX
 channels.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:37:48 -07:00
Edward Cree
08f9912ef0 sfc: extend bitfield macros up to POPULATE_DWORD_13
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:37:48 -07:00
Edward Cree
6d9b5dcd29 sfc: determine flag word automatically in efx_has_cap()
Now that we have an _OFST definition for each individual flag bit,
 callers of efx_has_cap() don't need to specify which flag word it's
 in; we can just use the flag name directly in MCDI_CAPABILITY_OFST.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:37:48 -07:00
Edward Cree
0dc95084c3 sfc: update MCDI protocol headers
The script used to generate these now includes _OFST definitions for
 flags, to identify the containing flag word.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:37:48 -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
David S. Miller
9a25c1df24 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:

====================
pull-request: bpf-next 2020-06-01

The following pull-request contains BPF updates for your *net-next* tree.

We've added 55 non-merge commits during the last 1 day(s) which contain
a total of 91 files changed, 4986 insertions(+), 463 deletions(-).

The main changes are:

1) Add rx_queue_mapping to bpf_sock from Amritha.

2) Add BPF ring buffer, from Andrii.

3) Attach and run programs through devmap, from David.

4) Allow SO_BINDTODEVICE opt in bpf_setsockopt, from Ferenc.

5) link based flow_dissector, from Jakub.

6) Use tracing helpers for lsm programs, from Jiri.

7) Several sk_msg fixes and extensions, from John.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01 15:53:08 -07:00
Jules Irenge
efd7ed0f5f sfc: add missing annotation for efx_ef10_try_update_nic_stats_vf()
Sparse reports a warning at efx_ef10_try_update_nic_stats_vf()
warning: context imbalance in efx_ef10_try_update_nic_stats_vf()
	- unexpected unlock
The root cause is the missing annotation at
efx_ef10_try_update_nic_stats_vf()
Add the missing _must_hold(&efx->stats_lock) annotation

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01 15:52:06 -07:00
Lorenzo Bianconi
1b698fa5d8 xdp: Rename convert_to_xdp_frame in xdp_convert_buff_to_frame
In order to use standard 'xdp' prefix, rename convert_to_xdp_frame
utility routine in xdp_convert_buff_to_frame and replace all the
occurrences

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Link: https://lore.kernel.org/bpf/6344f739be0d1a08ab2b9607584c4d5478c8c083.1590698295.git.lorenzo@kernel.org
2020-06-01 15:02:53 -07:00
Arnd Bergmann
b113cabd43 sfc: avoid an unused-variable warning
'nic_data' is no longer used outside of the #ifdef block
in efx_ef10_set_mac_address:

drivers/net/ethernet/sfc/ef10.c:3231:28: error: unused variable 'nic_data' [-Werror,-Wunused-variable]
        struct efx_ef10_nic_data *nic_data = efx->nic_data;

Move the variable into a local scope.

Fixes: dfcabb0788 ("sfc: move vport_id to struct efx_nic")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 12:49:06 -07:00