| /**************************************************************************** |
| * Driver for Solarflare Solarstorm network controllers and boards |
| * Copyright 2009-2010 Solarflare Communications Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 as published |
| * by the Free Software Foundation, incorporated herein by reference. |
| */ |
| |
| #include "net_driver.h" |
| #include "efx.h" |
| #include "mcdi.h" |
| #include "mcdi_pcol.h" |
| |
| static int efx_mcdi_set_mac(struct efx_nic *efx) |
| { |
| u32 reject, fcntl; |
| u8 cmdbytes[MC_CMD_SET_MAC_IN_LEN]; |
| |
| memcpy(cmdbytes + MC_CMD_SET_MAC_IN_ADDR_OFST, |
| efx->net_dev->dev_addr, ETH_ALEN); |
| |
| MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_MTU, |
| EFX_MAX_FRAME_LEN(efx->net_dev->mtu)); |
| MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_DRAIN, 0); |
| |
| /* The MCDI command provides for controlling accept/reject |
| * of broadcast packets too, but the driver doesn't currently |
| * expose this. */ |
| reject = (efx->promiscuous) ? 0 : |
| (1 << MC_CMD_SET_MAC_IN_REJECT_UNCST_LBN); |
| MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_REJECT, reject); |
| |
| switch (efx->wanted_fc) { |
| case EFX_FC_RX | EFX_FC_TX: |
| fcntl = MC_CMD_FCNTL_BIDIR; |
| break; |
| case EFX_FC_RX: |
| fcntl = MC_CMD_FCNTL_RESPOND; |
| break; |
| default: |
| fcntl = MC_CMD_FCNTL_OFF; |
| break; |
| } |
| if (efx->wanted_fc & EFX_FC_AUTO) |
| fcntl = MC_CMD_FCNTL_AUTO; |
| |
| MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_FCNTL, fcntl); |
| |
| return efx_mcdi_rpc(efx, MC_CMD_SET_MAC, cmdbytes, sizeof(cmdbytes), |
| NULL, 0, NULL); |
| } |
| |
| bool efx_mcdi_mac_check_fault(struct efx_nic *efx) |
| { |
| u8 outbuf[MC_CMD_GET_LINK_OUT_LEN]; |
| size_t outlength; |
| int rc; |
| |
| BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, |
| outbuf, sizeof(outbuf), &outlength); |
| if (rc) { |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", |
| __func__, rc); |
| return true; |
| } |
| |
| return MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT) != 0; |
| } |
| |
| int efx_mcdi_mac_stats(struct efx_nic *efx, dma_addr_t dma_addr, |
| u32 dma_len, int enable, int clear) |
| { |
| u8 inbuf[MC_CMD_MAC_STATS_IN_LEN]; |
| int rc; |
| efx_dword_t *cmd_ptr; |
| int period = enable ? 1000 : 0; |
| u32 addr_hi; |
| u32 addr_lo; |
| |
| BUILD_BUG_ON(MC_CMD_MAC_STATS_OUT_DMA_LEN != 0); |
| |
| addr_lo = ((u64)dma_addr) >> 0; |
| addr_hi = ((u64)dma_addr) >> 32; |
| |
| MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_ADDR_LO, addr_lo); |
| MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_ADDR_HI, addr_hi); |
| cmd_ptr = (efx_dword_t *)MCDI_PTR(inbuf, MAC_STATS_IN_CMD); |
| EFX_POPULATE_DWORD_7(*cmd_ptr, |
| MC_CMD_MAC_STATS_IN_DMA, !!enable, |
| MC_CMD_MAC_STATS_IN_CLEAR, clear, |
| MC_CMD_MAC_STATS_IN_PERIODIC_CHANGE, 1, |
| MC_CMD_MAC_STATS_IN_PERIODIC_ENABLE, !!enable, |
| MC_CMD_MAC_STATS_IN_PERIODIC_CLEAR, 0, |
| MC_CMD_MAC_STATS_IN_PERIODIC_NOEVENT, 1, |
| MC_CMD_MAC_STATS_IN_PERIOD_MS, period); |
| MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf), |
| NULL, 0, NULL); |
| if (rc) |
| goto fail; |
| |
| return 0; |
| |
| fail: |
| netif_err(efx, hw, efx->net_dev, "%s: %s failed rc=%d\n", |
| __func__, enable ? "enable" : "disable", rc); |
| return rc; |
| } |
| |
| int efx_mcdi_mac_reconfigure(struct efx_nic *efx) |
| { |
| int rc; |
| |
| rc = efx_mcdi_set_mac(efx); |
| if (rc != 0) |
| return rc; |
| |
| /* Restore the multicast hash registers. */ |
| efx->type->push_multicast_hash(efx); |
| |
| return 0; |
| } |