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The core is now responsible for allocating IDs and a memory region for
us to store our state (struct efx_rss_context_priv), so we no longer
need efx_alloc_rss_context_entry() and friends.
Since the contexts are now maintained by the core, use the core's lock
(net_dev->ethtool->rss_lock), rather than our own mutex (efx->rss_lock),
to serialise access against changes; and remove the now-unused
efx->rss_lock from struct efx_nic.
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/150274740ea8cc137fef5502541ce573d32fb319.1719502240.git.ecree.xilinx@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add the RSS context parameters to struct ethtool_rxfh_param and use the
get/set_rxfh to handle the RSS contexts as well.
This is part 2/2 of the fix suggested in [1]:
- Add a rss_context member to the argument struct and a capability
like cap_link_lanes_supported to indicate whether driver supports
rss contexts, then you can remove *et_rxfh_context functions,
and instead call *et_rxfh() with a non-zero rss_context.
Link: https://lore.kernel.org/netdev/20231121152906.2dd5f487@kernel.org/ [1]
CC: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Tony Nguyen <anthony.l.nguyen@intel.com>
CC: Marcin Wojtas <mw@semihalf.com>
CC: Russell King <linux@armlinux.org.uk>
CC: Sunil Goutham <sgoutham@marvell.com>
CC: Geetha sowjanya <gakula@marvell.com>
CC: Subbaraya Sundeep <sbhatta@marvell.com>
CC: hariprasad <hkelam@marvell.com>
CC: Saeed Mahameed <saeedm@nvidia.com>
CC: Leon Romanovsky <leon@kernel.org>
CC: Edward Cree <ecree.xilinx@gmail.com>
CC: Martin Habets <habetsm.xilinx@gmail.com>
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Link: https://lore.kernel.org/r/20231213003321.605376-3-ahmed.zaki@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The get/set_rxfh ethtool ops currently takes the rxfh (RSS) parameters
as direct function arguments. This will force us to change the API (and
all drivers' functions) every time some new parameters are added.
This is part 1/2 of the fix, as suggested in [1]:
- First simplify the code by always providing a pointer to all params
(indir, key and func); the fact that some of them may be NULL seems
like a weird historic thing or a premature optimization.
It will simplify the drivers if all pointers are always present.
- Then make the functions take a dev pointer, and a pointer to a
single struct wrapping all arguments. The set_* should also take
an extack.
Link: https://lore.kernel.org/netdev/20231121152906.2dd5f487@kernel.org/ [1]
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Suggested-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Link: https://lore.kernel.org/r/20231213003321.605376-2-ahmed.zaki@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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It no longer does anything now that we're using formatted extacks instead.
So we can remove the driver's whole get/set priv_flags implementation.
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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TC offload support will involve complex limitations on what matches and
actions a rule can do, in some cases potentially depending on rules
already offloaded. So add an ethtool private flag "log-tc-errors" which
controls reporting the reasons for un-offloadable TC rules at NETIF_INFO.
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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No TX or RX path, no MCDI, not even an ifup/down handler.
Besides stubs, the bulk of the patch deals with reading the Xilinx
extended PCIe capability, which tells us where to find our BAR.
Though in the same module, EF100 has its own struct pci_driver,
which is named sfc_ef100.
A small number of additional nic_type methods are added; those in the
TX (tx_enqueue) and RX (rx_packet) paths are called through indirect
call wrappers to minimise the performance impact.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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An MDIO-based n-way restart does not make sense for any of the NICs
supported by this driver, nor for the coming EF100.
Unlike on Falcon (which was already split off into a separate driver),
the PHY on all of Siena, EF10 and EF100 is managed by MC firmware.
While Siena can talk to the PHY over MDIO, doing so for anything other
than debugging purposes (mdio_mii_ioctl) is likely to confuse the
firmware.
(According to the SFC firmware team, this support was originally added
to the Siena driver early in the development of that product, before
it was decided to have firmware manage the PHY.)
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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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>
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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>
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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>
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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>
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Various ethtool entry points are moved.
Signed-off-by: Alexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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