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sfc: skeleton EF100 PF driver

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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>
This commit is contained in:
Edward Cree
2020-07-27 12:55:55 +01:00
committed by David S. Miller
parent 61060c5dc5
commit 51b35a454e
26 changed files with 1095 additions and 13 deletions
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8
drivers/net/ethernet/sfc/efx.c
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@@ -25,6 +25,7 @@
#include "efx.h"
#include "efx_common.h"
#include "efx_channels.h"
#include "ef100.h"
#include "rx_common.h"
#include "tx_common.h"
#include "nic.h"
@@ -1360,8 +1361,14 @@ static int __init efx_init_module(void)
if (rc < 0)
goto err_pci;
rc = pci_register_driver(&ef100_pci_driver);
if (rc < 0)
goto err_pci_ef100;
return 0;
err_pci_ef100:
pci_unregister_driver(&efx_pci_driver);
err_pci:
efx_destroy_reset_workqueue();
err_reset:
@@ -1378,6 +1385,7 @@ static void __exit efx_exit_module(void)
{
printk(KERN_INFO "Solarflare NET driver unloading\n");
pci_unregister_driver(&ef100_pci_driver);
pci_unregister_driver(&efx_pci_driver);
efx_destroy_reset_workqueue();
#ifdef CONFIG_SFC_SRIOV