c4c8f39a57
Add a very rudimentary active buffer management NIC support. For now it's like a core NIC without SR-IOV support. Next commits will extend its functionality. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
// SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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/*
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* Copyright (C) 2018 Netronome Systems, Inc.
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*
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* This software is dual licensed under the GNU General License Version 2,
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* June 1991 as shown in the file COPYING in the top-level directory of this
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* source tree or the BSD 2-Clause License provided below. You have the
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* option to license this software under the complete terms of either license.
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*
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* The BSD 2-Clause License:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "../nfpcore/nfp_cpp.h"
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#include "../nfpcore/nfp_nsp.h"
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#include "../nfp_app.h"
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#include "../nfp_main.h"
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#include "main.h"
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static int nfp_abm_init(struct nfp_app *app)
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{
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struct nfp_pf *pf = app->pf;
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struct nfp_abm *abm;
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if (!pf->eth_tbl) {
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nfp_err(pf->cpp, "ABM NIC requires ETH table\n");
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return -EINVAL;
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}
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if (pf->max_data_vnics != pf->eth_tbl->count) {
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nfp_err(pf->cpp, "ETH entries don't match vNICs (%d vs %d)\n",
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pf->max_data_vnics, pf->eth_tbl->count);
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return -EINVAL;
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}
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if (!pf->mac_stats_bar) {
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nfp_warn(app->cpp, "ABM NIC requires mac_stats symbol\n");
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return -EINVAL;
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}
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abm = kzalloc(sizeof(*abm), GFP_KERNEL);
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if (!abm)
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return -ENOMEM;
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app->priv = abm;
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abm->app = app;
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return 0;
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}
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static void nfp_abm_clean(struct nfp_app *app)
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{
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struct nfp_abm *abm = app->priv;
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kfree(abm);
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app->priv = NULL;
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}
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const struct nfp_app_type app_abm = {
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.id = NFP_APP_ACTIVE_BUFFER_MGMT_NIC,
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.name = "abm",
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.init = nfp_abm_init,
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.clean = nfp_abm_clean,
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.vnic_alloc = nfp_app_nic_vnic_alloc,
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};
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