bb34ffb848
Pull in common VNIC code which enables querying for max egress packet size with newer firmware via a device command. If the field is non-zero, it is the max egress packet size. If it is 0, the default value (9022) can safely be assumed. The value for 1300 series VICS using firmware versions >= 3.1.2 for blade series and >= 2.0.13 for rack series servers is 9208. Tx buffers can be emitted only if they are less than the max egress packet size regardless of the MTU setting (the MTU is advisory). The max egress packet size can used to determine the upper limit of the MTU since the enic can also receive packets of size greater than max egress packet size. A max_mtu variable is added with a value of max egress packet size minus L2 header size. The default MTU is set via the CIMC/UCSM management interface and currently allows value up to 9000. If the value is changed, the host must be reboot. To avoid the reboot and allow MTU values up to the max capability of the NIC, MTU update capability will be added with a max value capped by max_mtu. Signed-off-by: John Daley <johndale@cisco.com>
79 lines
2.8 KiB
C
79 lines
2.8 KiB
C
/*
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* Copyright 2008-2010 Cisco Systems, Inc. All rights reserved.
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* Copyright 2007 Nuova Systems, Inc. All rights reserved.
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*
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* Copyright (c) 2014, Cisco Systems, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef _ENIC_RES_H_
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#define _ENIC_RES_H_
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#include "wq_enet_desc.h"
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#include "rq_enet_desc.h"
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#include "vnic_wq.h"
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#include "vnic_rq.h"
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#define ENIC_MIN_WQ_DESCS 64
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#define ENIC_MAX_WQ_DESCS 4096
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#define ENIC_MIN_RQ_DESCS 64
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#define ENIC_MAX_RQ_DESCS 4096
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#define ENIC_MIN_MTU 68
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/* Does not include (possible) inserted VLAN tag and FCS */
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#define ENIC_DEFAULT_MAX_PKT_SIZE 9022
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#define ENIC_MULTICAST_PERFECT_FILTERS 32
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#define ENIC_UNICAST_PERFECT_FILTERS 32
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#define ENIC_NON_TSO_MAX_DESC 16
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#define ENIC_DEFAULT_RX_FREE_THRESH 32
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#define ENIC_TX_XMIT_MAX 64
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#define ENIC_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
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struct enic;
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int enic_get_vnic_config(struct enic *);
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int enic_add_vlan(struct enic *enic, u16 vlanid);
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int enic_del_vlan(struct enic *enic, u16 vlanid);
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int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
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u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
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u8 ig_vlan_strip_en);
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int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
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int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
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void enic_get_res_counts(struct enic *enic);
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void enic_init_vnic_resources(struct enic *enic);
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int enic_alloc_vnic_resources(struct enic *);
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void enic_free_vnic_resources(struct enic *);
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#endif /* _ENIC_RES_H_ */
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