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// SPDX-License-Identifier: GPL-2.0-only
/****************************************************************************
* Driver for Solarflare network controllers and boards
* Copyright 2019 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 "nic.h"
#include "mcdi_functions.h"
#include "mcdi.h"
#include "mcdi_pcol.h"
int efx_mcdi_free_vis(struct efx_nic *efx)
{
MCDI_DECLARE_BUF_ERR(outbuf);
size_t outlen;
int rc = efx_mcdi_rpc_quiet(efx, MC_CMD_FREE_VIS, NULL, 0,
outbuf, sizeof(outbuf), &outlen);
/* -EALREADY means nothing to free, so ignore */
if (rc == -EALREADY)
rc = 0;
if (rc)
efx_mcdi_display_error(efx, MC_CMD_FREE_VIS, 0, outbuf, outlen,
rc);
return rc;
}
int efx_mcdi_alloc_vis(struct efx_nic *efx, unsigned int min_vis,
unsigned int max_vis, unsigned int *vi_base,
unsigned int *allocated_vis)
{
MCDI_DECLARE_BUF(outbuf, MC_CMD_ALLOC_VIS_OUT_LEN);
MCDI_DECLARE_BUF(inbuf, MC_CMD_ALLOC_VIS_IN_LEN);
size_t outlen;
int rc;
MCDI_SET_DWORD(inbuf, ALLOC_VIS_IN_MIN_VI_COUNT, min_vis);
MCDI_SET_DWORD(inbuf, ALLOC_VIS_IN_MAX_VI_COUNT, max_vis);
rc = efx_mcdi_rpc(efx, MC_CMD_ALLOC_VIS, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), &outlen);
if (rc != 0)
return rc;
if (outlen < MC_CMD_ALLOC_VIS_OUT_LEN)
return -EIO;
netif_dbg(efx, drv, efx->net_dev, "base VI is A0x%03x\n",
MCDI_DWORD(outbuf, ALLOC_VIS_OUT_VI_BASE));
if (vi_base)
*vi_base = MCDI_DWORD(outbuf, ALLOC_VIS_OUT_VI_BASE);
if (allocated_vis)
*allocated_vis = MCDI_DWORD(outbuf, ALLOC_VIS_OUT_VI_COUNT);
return 0;
}
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