diff options
Diffstat (limited to 'drivers/net/ethernet/sfc/mcdi_port_common.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/mcdi_port_common.c | 141 |
1 files changed, 139 insertions, 2 deletions
diff --git a/drivers/net/ethernet/sfc/mcdi_port_common.c b/drivers/net/ethernet/sfc/mcdi_port_common.c index a6a072ba46d3..56af8b54a864 100644 --- a/drivers/net/ethernet/sfc/mcdi_port_common.c +++ b/drivers/net/ethernet/sfc/mcdi_port_common.c @@ -10,6 +10,7 @@ #include "mcdi_port_common.h" #include "efx_common.h" +#include "nic.h" int efx_mcdi_get_phy_cfg(struct efx_nic *efx, struct efx_mcdi_phy_data *cfg) { @@ -475,6 +476,24 @@ int efx_mcdi_phy_test_alive(struct efx_nic *efx) return 0; } +int efx_mcdi_port_reconfigure(struct efx_nic *efx) +{ + struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; + u32 caps = (efx->link_advertising[0] ? + ethtool_linkset_to_mcdi_cap(efx->link_advertising) : + phy_cfg->forced_cap); + + caps |= ethtool_fec_caps_to_mcdi(efx->fec_config); + + return efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), + efx->loopback_mode, 0); +} + +static unsigned int efx_calc_mac_mtu(struct efx_nic *efx) +{ + return EFX_MAX_FRAME_LEN(efx->net_dev->mtu); +} + int efx_mcdi_set_mac(struct efx_nic *efx) { u32 fcntl; @@ -486,8 +505,7 @@ int efx_mcdi_set_mac(struct efx_nic *efx) ether_addr_copy(MCDI_PTR(cmdbytes, SET_MAC_IN_ADDR), efx->net_dev->dev_addr); - MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_MTU, - EFX_MAX_FRAME_LEN(efx->net_dev->mtu)); + MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_MTU, efx_calc_mac_mtu(efx)); MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_DRAIN, 0); /* Set simple MAC filter for Siena */ @@ -520,6 +538,125 @@ int efx_mcdi_set_mac(struct efx_nic *efx) NULL, 0, NULL); } +int efx_mcdi_set_mtu(struct efx_nic *efx) +{ + MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_MAC_EXT_IN_LEN); + + BUILD_BUG_ON(MC_CMD_SET_MAC_OUT_LEN != 0); + + MCDI_SET_DWORD(inbuf, SET_MAC_EXT_IN_MTU, efx_calc_mac_mtu(efx)); + + MCDI_POPULATE_DWORD_1(inbuf, SET_MAC_EXT_IN_CONTROL, + SET_MAC_EXT_IN_CFG_MTU, 1); + + return efx_mcdi_rpc(efx, MC_CMD_SET_MAC, inbuf, sizeof(inbuf), + NULL, 0, NULL); +} + +enum efx_stats_action { + EFX_STATS_ENABLE, + EFX_STATS_DISABLE, + EFX_STATS_PULL, +}; + +static int efx_mcdi_mac_stats(struct efx_nic *efx, + enum efx_stats_action action, int clear) +{ + MCDI_DECLARE_BUF(inbuf, MC_CMD_MAC_STATS_IN_LEN); + int rc; + int change = action == EFX_STATS_PULL ? 0 : 1; + int enable = action == EFX_STATS_ENABLE ? 1 : 0; + int period = action == EFX_STATS_ENABLE ? 1000 : 0; + dma_addr_t dma_addr = efx->stats_buffer.dma_addr; + u32 dma_len = action != EFX_STATS_DISABLE ? + efx->num_mac_stats * sizeof(u64) : 0; + + BUILD_BUG_ON(MC_CMD_MAC_STATS_OUT_DMA_LEN != 0); + + MCDI_SET_QWORD(inbuf, MAC_STATS_IN_DMA_ADDR, dma_addr); + MCDI_POPULATE_DWORD_7(inbuf, MAC_STATS_IN_CMD, + MAC_STATS_IN_DMA, !!enable, + MAC_STATS_IN_CLEAR, clear, + MAC_STATS_IN_PERIODIC_CHANGE, change, + MAC_STATS_IN_PERIODIC_ENABLE, enable, + MAC_STATS_IN_PERIODIC_CLEAR, 0, + MAC_STATS_IN_PERIODIC_NOEVENT, 1, + MAC_STATS_IN_PERIOD_MS, period); + MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len); + + if (efx_nic_rev(efx) >= EFX_REV_HUNT_A0) + MCDI_SET_DWORD(inbuf, MAC_STATS_IN_PORT_ID, efx->vport_id); + + rc = efx_mcdi_rpc_quiet(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf), + NULL, 0, NULL); + /* Expect ENOENT if DMA queues have not been set up */ + if (rc && (rc != -ENOENT || atomic_read(&efx->active_queues))) + efx_mcdi_display_error(efx, MC_CMD_MAC_STATS, sizeof(inbuf), + NULL, 0, rc); + return rc; +} + +void efx_mcdi_mac_start_stats(struct efx_nic *efx) +{ + __le64 *dma_stats = efx->stats_buffer.addr; + + dma_stats[efx->num_mac_stats - 1] = EFX_MC_STATS_GENERATION_INVALID; + + efx_mcdi_mac_stats(efx, EFX_STATS_ENABLE, 0); +} + +void efx_mcdi_mac_stop_stats(struct efx_nic *efx) +{ + efx_mcdi_mac_stats(efx, EFX_STATS_DISABLE, 0); +} + +#define EFX_MAC_STATS_WAIT_US 100 +#define EFX_MAC_STATS_WAIT_ATTEMPTS 10 + +void efx_mcdi_mac_pull_stats(struct efx_nic *efx) +{ + __le64 *dma_stats = efx->stats_buffer.addr; + int attempts = EFX_MAC_STATS_WAIT_ATTEMPTS; + + dma_stats[efx->num_mac_stats - 1] = EFX_MC_STATS_GENERATION_INVALID; + efx_mcdi_mac_stats(efx, EFX_STATS_PULL, 0); + + while (dma_stats[efx->num_mac_stats - 1] == + EFX_MC_STATS_GENERATION_INVALID && + attempts-- != 0) + udelay(EFX_MAC_STATS_WAIT_US); +} + +int efx_mcdi_mac_init_stats(struct efx_nic *efx) +{ + int rc; + + if (!efx->num_mac_stats) + return 0; + + /* Allocate buffer for stats */ + rc = efx_nic_alloc_buffer(efx, &efx->stats_buffer, + efx->num_mac_stats * sizeof(u64), GFP_KERNEL); + if (rc) { + netif_warn(efx, probe, efx->net_dev, + "failed to allocate DMA buffer: %d\n", rc); + return rc; + } + + netif_dbg(efx, probe, efx->net_dev, + "stats buffer at %llx (virt %p phys %llx)\n", + (u64) efx->stats_buffer.dma_addr, + efx->stats_buffer.addr, + (u64) virt_to_phys(efx->stats_buffer.addr)); + + return 0; +} + +void efx_mcdi_mac_fini_stats(struct efx_nic *efx) +{ + efx_nic_free_buffer(efx, &efx->stats_buffer); +} + /* Get physical port number (EF10 only; on Siena it is same as PF number) */ int efx_mcdi_port_get_number(struct efx_nic *efx) { |