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sfc: make mem_bar a function rather than a constant
Support using BAR 0 on SFC9250, even though the driver doesn't bind to such devices yet. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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59436c9ee1
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5 changed files with 35 additions and 12 deletions
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@ -160,11 +160,31 @@ static int efx_ef10_get_warm_boot_count(struct efx_nic *efx)
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EFX_DWORD_FIELD(reg, EFX_WORD_0) : -EIO;
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}
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/* On all EF10s up to and including SFC9220 (Medford1), all PFs use BAR 0 for
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* I/O space and BAR 2(&3) for memory. On SFC9250 (Medford2), there is no I/O
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* bar; PFs use BAR 0/1 for memory.
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*/
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static unsigned int efx_ef10_pf_mem_bar(struct efx_nic *efx)
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{
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switch (efx->pci_dev->device) {
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case 0x0b03: /* SFC9250 PF */
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return 0;
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default:
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return 2;
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}
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}
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/* All VFs use BAR 0/1 for memory */
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static unsigned int efx_ef10_vf_mem_bar(struct efx_nic *efx)
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{
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return 0;
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}
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static unsigned int efx_ef10_mem_map_size(struct efx_nic *efx)
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{
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int bar;
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bar = efx->type->mem_bar;
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bar = efx->type->mem_bar(efx);
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return resource_size(&efx->pci_dev->resource[bar]);
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}
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@ -6392,7 +6412,7 @@ static int efx_ef10_udp_tnl_del_port(struct efx_nic *efx,
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const struct efx_nic_type efx_hunt_a0_vf_nic_type = {
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.is_vf = true,
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.mem_bar = EFX_MEM_VF_BAR,
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.mem_bar = efx_ef10_vf_mem_bar,
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.mem_map_size = efx_ef10_mem_map_size,
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.probe = efx_ef10_probe_vf,
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.remove = efx_ef10_remove,
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@ -6500,7 +6520,7 @@ const struct efx_nic_type efx_hunt_a0_vf_nic_type = {
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const struct efx_nic_type efx_hunt_a0_nic_type = {
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.is_vf = false,
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.mem_bar = EFX_MEM_BAR,
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.mem_bar = efx_ef10_pf_mem_bar,
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.mem_map_size = efx_ef10_mem_map_size,
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.probe = efx_ef10_probe_pf,
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.remove = efx_ef10_remove,
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@ -1248,7 +1248,7 @@ static int efx_init_io(struct efx_nic *efx)
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netif_dbg(efx, probe, efx->net_dev, "initialising I/O\n");
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bar = efx->type->mem_bar;
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bar = efx->type->mem_bar(efx);
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rc = pci_enable_device(pci_dev);
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if (rc) {
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@ -1323,7 +1323,7 @@ static void efx_fini_io(struct efx_nic *efx)
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}
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if (efx->membase_phys) {
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bar = efx->type->mem_bar;
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bar = efx->type->mem_bar(efx);
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pci_release_region(efx->pci_dev, bar);
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efx->membase_phys = 0;
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}
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@ -14,11 +14,6 @@
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#include "net_driver.h"
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#include "filter.h"
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/* All controllers use BAR 0 for I/O space and BAR 2(&3) for memory */
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/* All VFs use BAR 0/1 for memory */
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#define EFX_MEM_BAR 2
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#define EFX_MEM_VF_BAR 0
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int efx_net_open(struct net_device *net_dev);
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int efx_net_stop(struct net_device *net_dev);
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@ -1154,7 +1154,7 @@ struct efx_udp_tunnel {
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*/
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struct efx_nic_type {
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bool is_vf;
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unsigned int mem_bar;
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unsigned int (*mem_bar)(struct efx_nic *efx);
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unsigned int (*mem_map_size)(struct efx_nic *efx);
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int (*probe)(struct efx_nic *efx);
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void (*remove)(struct efx_nic *efx);
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@ -242,6 +242,14 @@ static int siena_dimension_resources(struct efx_nic *efx)
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return 0;
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}
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/* On all Falcon-architecture NICs, PFs use BAR 0 for I/O space and BAR 2(&3)
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* for memory.
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*/
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static unsigned int siena_mem_bar(struct efx_nic *efx)
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{
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return 2;
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}
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static unsigned int siena_mem_map_size(struct efx_nic *efx)
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{
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return FR_CZ_MC_TREG_SMEM +
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@ -950,7 +958,7 @@ static int siena_mtd_probe(struct efx_nic *efx)
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const struct efx_nic_type siena_a0_nic_type = {
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.is_vf = false,
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.mem_bar = EFX_MEM_BAR,
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.mem_bar = siena_mem_bar,
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.mem_map_size = siena_mem_map_size,
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.probe = siena_probe_nic,
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.remove = siena_remove_nic,
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