6c8c2513c8
The phy, mac, and board information structures should be const. Since tables contain function pointer this improves security (at least theoretically). Compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
145 lines
3.7 KiB
C
145 lines
3.7 KiB
C
/****************************************************************************
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* Driver for Solarflare Solarstorm network controllers and boards
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* Copyright 2009-2010 Solarflare Communications Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation, incorporated herein by reference.
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*/
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#include "net_driver.h"
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#include "efx.h"
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#include "mac.h"
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#include "mcdi.h"
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#include "mcdi_pcol.h"
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static int efx_mcdi_set_mac(struct efx_nic *efx)
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{
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u32 reject, fcntl;
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u8 cmdbytes[MC_CMD_SET_MAC_IN_LEN];
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memcpy(cmdbytes + MC_CMD_SET_MAC_IN_ADDR_OFST,
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efx->net_dev->dev_addr, ETH_ALEN);
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MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_MTU,
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EFX_MAX_FRAME_LEN(efx->net_dev->mtu));
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MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_DRAIN, 0);
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/* The MCDI command provides for controlling accept/reject
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* of broadcast packets too, but the driver doesn't currently
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* expose this. */
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reject = (efx->promiscuous) ? 0 :
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(1 << MC_CMD_SET_MAC_IN_REJECT_UNCST_LBN);
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MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_REJECT, reject);
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switch (efx->wanted_fc) {
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case EFX_FC_RX | EFX_FC_TX:
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fcntl = MC_CMD_FCNTL_BIDIR;
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break;
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case EFX_FC_RX:
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fcntl = MC_CMD_FCNTL_RESPOND;
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break;
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default:
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fcntl = MC_CMD_FCNTL_OFF;
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break;
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}
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if (efx->wanted_fc & EFX_FC_AUTO)
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fcntl = MC_CMD_FCNTL_AUTO;
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MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_FCNTL, fcntl);
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return efx_mcdi_rpc(efx, MC_CMD_SET_MAC, cmdbytes, sizeof(cmdbytes),
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NULL, 0, NULL);
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}
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static int efx_mcdi_get_mac_faults(struct efx_nic *efx, u32 *faults)
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{
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u8 outbuf[MC_CMD_GET_LINK_OUT_LEN];
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size_t outlength;
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int rc;
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BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
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rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
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outbuf, sizeof(outbuf), &outlength);
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if (rc)
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goto fail;
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*faults = MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT);
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return 0;
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fail:
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netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
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__func__, rc);
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return rc;
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}
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int efx_mcdi_mac_stats(struct efx_nic *efx, dma_addr_t dma_addr,
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u32 dma_len, int enable, int clear)
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{
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u8 inbuf[MC_CMD_MAC_STATS_IN_LEN];
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int rc;
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efx_dword_t *cmd_ptr;
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int period = enable ? 1000 : 0;
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u32 addr_hi;
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u32 addr_lo;
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BUILD_BUG_ON(MC_CMD_MAC_STATS_OUT_LEN != 0);
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addr_lo = ((u64)dma_addr) >> 0;
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addr_hi = ((u64)dma_addr) >> 32;
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MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_ADDR_LO, addr_lo);
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MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_ADDR_HI, addr_hi);
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cmd_ptr = (efx_dword_t *)MCDI_PTR(inbuf, MAC_STATS_IN_CMD);
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EFX_POPULATE_DWORD_7(*cmd_ptr,
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MC_CMD_MAC_STATS_CMD_DMA, !!enable,
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MC_CMD_MAC_STATS_CMD_CLEAR, clear,
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MC_CMD_MAC_STATS_CMD_PERIODIC_CHANGE, 1,
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MC_CMD_MAC_STATS_CMD_PERIODIC_ENABLE, !!enable,
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MC_CMD_MAC_STATS_CMD_PERIODIC_CLEAR, 0,
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MC_CMD_MAC_STATS_CMD_PERIODIC_NOEVENT, 1,
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MC_CMD_MAC_STATS_CMD_PERIOD_MS, period);
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MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len);
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rc = efx_mcdi_rpc(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf),
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NULL, 0, NULL);
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if (rc)
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goto fail;
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return 0;
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fail:
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netif_err(efx, hw, efx->net_dev, "%s: %s failed rc=%d\n",
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__func__, enable ? "enable" : "disable", rc);
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return rc;
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}
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static int efx_mcdi_mac_reconfigure(struct efx_nic *efx)
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{
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int rc;
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rc = efx_mcdi_set_mac(efx);
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if (rc != 0)
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return rc;
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/* Restore the multicast hash registers. */
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efx->type->push_multicast_hash(efx);
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return 0;
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}
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static bool efx_mcdi_mac_check_fault(struct efx_nic *efx)
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{
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u32 faults;
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int rc = efx_mcdi_get_mac_faults(efx, &faults);
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return (rc != 0) || (faults != 0);
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}
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const struct efx_mac_operations efx_mcdi_mac_operations = {
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.reconfigure = efx_mcdi_mac_reconfigure,
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.update_stats = efx_port_dummy_op_void,
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.check_fault = efx_mcdi_mac_check_fault,
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};
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