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2020-07-02sfc_ef100: helper function to set default RSS table of given sizeEdward Cree2-0/+23
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02sfc_ef100: NVRAM selftest support codeEdward Cree2-0/+63
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>
2020-07-02sfc_ef100: populate BUFFER_SIZE_BYTES in INIT_RXQEdward Cree1-7/+8
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>
2020-07-02sfc_ef100: add EF100 to NIC-revision enumerationEdward Cree1-0/+1
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02sfc: get drvinfo driver name from outside the common codeEdward Cree3-1/+5
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>
2020-07-02sfc: initialise RSS context ID to 'no RSS context' in efx_init_struct()Edward Cree2-2/+1
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>
2020-07-02sfc: commonise efx_fini_dmaqEdward Cree3-40/+41
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-02sfc: factor out efx_mcdi_filter_table_down() from _remove()Edward Cree2-13/+25
_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>
2020-07-02sfc: don't call tx_limit_len if NIC type doesn't have oneEdward Cree1-1/+5
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>
2020-07-02sfc: assign TXQs without gapsEdward Cree10-72/+58
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>
2020-07-02sfc: commonise netif_set_real_num[tr]x_queues callsEdward Cree2-4/+6
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>
2020-07-02sfc: make tx_queues_per_channel variable at runtimeEdward Cree6-31/+30
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>
2020-07-02sfc: move modparam 'rss_cpus' out of common channel codeEdward Cree3-3/+5
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>
2020-07-02sfc: move modparam 'interrupt_mode' out of common channel codeEdward Cree3-5/+8
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>
2020-07-02sfc: remove max_interrupt_modeEdward Cree4-12/+0
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>
2020-07-02sfc: support setting MTU even if not privileged to configure MAC fullyEdward Cree7-23/+16
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>
2020-06-30sfc: don't call tx_remove if there isn't oneEdward Cree1-1/+2
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>
2020-06-30sfc: commonise initialisation of efx->vport_idEdward Cree2-2/+1
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30sfc: commonise efx->[rt]xq_entries initialisationEdward Cree2-1/+3
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30sfc: initialise max_[tx_]channels in efx_init_channels()Edward Cree1-0/+3
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30sfc: move definition of EFX_MC_STATS_GENERATION_INVALIDEdward Cree3-3/+2
Saves a whole #include from nic.c. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30sfc: factor out efx_tx_tso_header_length() and understand encapsulationEdward Cree2-2/+16
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>
2020-06-30sfc: remove duplicate declaration of efx_enqueue_skb_tso()Edward Cree4-7/+4
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>
2020-06-30sfc: commonise TSO fallback codeEdward Cree3-29/+28
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>
2020-06-30sfc: commonise efx_sync_rx_buffer()Edward Cree2-8/+9
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>
2020-06-30sfc: commonise some MAC configuration codeEdward Cree3-15/+35
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>
2020-06-30sfc: commonise miscellaneous efx functionsEdward Cree4-129/+138
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>
2020-06-30sfc: add missing licence info to mcdi_filters.cEdward Cree1-0/+11
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>
2020-06-30sfc: commonise MCDI MAC stats handlingEdward Cree3-89/+109
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>
2020-06-30sfc: move NIC-specific mcdi_port declarations out of common headerEdward Cree5-4/+21
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>
2020-06-29sfc: extend common GRO interface to support CHECKSUM_COMPLETEEdward Cree3-5/+10
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>
2020-06-29sfc: commonise ARFS handlingEdward Cree4-239/+238
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>
2020-06-29sfc: commonise drain event handlingEdward Cree3-10/+9
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>
2020-06-29sfc: commonise PCI error handlersEdward Cree3-91/+92
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>
2020-06-29sfc: track which BAR is mappedEdward Cree4-10/+18
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>
2020-06-29sfc: commonise FC advertisingEdward Cree4-27/+27
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29sfc: commonise other ethtool bitsEdward Cree3-93/+101
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>
2020-06-29sfc: commonise ethtool NFC and RXFH/RSS functionsEdward Cree3-672/+688
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>
2020-06-29sfc: commonise ethtool link handling functionsEdward Cree3-149/+157
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>
2020-06-29sfc: split up nic.hEdward Cree5-301/+322
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>
2020-06-29sfc: refactor EF10 stats handlingEdward Cree3-34/+82
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>
2020-06-29sfc: don't try to create more channels than we can have VIsEdward Cree4-4/+23
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>
2020-06-29sfc: extend bitfield macros up to POPULATE_DWORD_13Edward Cree1-5/+29
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29sfc: determine flag word automatically in efx_has_cap()Edward Cree3-8/+7
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>
2020-06-29sfc: update MCDI protocol headersEdward Cree1-36/+6841
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>
2020-06-14treewide: replace '---help---' in Kconfig files with 'help'Masahiro Yamada2-8/+8
Since commit 84af7a6194e4 ("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>
2020-06-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller1-1/+1
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>
2020-06-01sfc: add missing annotation for efx_ef10_try_update_nic_stats_vf()Jules Irenge1-0/+1
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>
2020-06-01xdp: Rename convert_to_xdp_frame in xdp_convert_buff_to_frameLorenzo Bianconi1-1/+1
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
2020-05-28sfc: avoid an unused-variable warningArnd Bergmann1-1/+1
'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: dfcabb078847 ("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>
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