2013-09-11 16:40:07 +08:00
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/*******************************************************************************
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*
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* Intel Ethernet Controller XL710 Family Linux Driver
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2015-02-06 16:52:14 +08:00
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* Copyright(c) 2013 - 2015 Intel Corporation.
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2013-09-11 16:40:07 +08:00
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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 and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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2013-12-18 21:45:51 +08:00
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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2013-09-11 16:40:07 +08:00
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*
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* The full GNU General Public License is included in this distribution in
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* the file called "COPYING".
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*
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* Contact Information:
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* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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******************************************************************************/
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#ifndef _I40E_VIRTCHNL_PF_H_
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#define _I40E_VIRTCHNL_PF_H_
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#include "i40e.h"
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#define I40E_MAX_VLANID 4095
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#define I40E_VIRTCHNL_SUPPORTED_QTYPES 2
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#define I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED 3
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#define I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED 10
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#define I40E_VLAN_PRIORITY_SHIFT 12
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#define I40E_VLAN_MASK 0xFFF
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#define I40E_PRIORITY_MASK 0x7000
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2015-06-05 04:23:56 +08:00
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#define VF_IS_V10(_v) (((_v)->vf_ver.major == 1) && ((_v)->vf_ver.minor == 0))
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#define VF_IS_V11(_v) (((_v)->vf_ver.major == 1) && ((_v)->vf_ver.minor == 1))
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2013-09-11 16:40:07 +08:00
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/* Various queue ctrls */
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enum i40e_queue_ctrl {
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I40E_QUEUE_CTRL_UNKNOWN = 0,
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I40E_QUEUE_CTRL_ENABLE,
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I40E_QUEUE_CTRL_ENABLECHECK,
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I40E_QUEUE_CTRL_DISABLE,
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I40E_QUEUE_CTRL_DISABLECHECK,
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I40E_QUEUE_CTRL_FASTDISABLE,
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I40E_QUEUE_CTRL_FASTDISABLECHECK,
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};
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/* VF states */
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enum i40e_vf_states {
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I40E_VF_STAT_INIT = 0,
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I40E_VF_STAT_ACTIVE,
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2016-01-21 03:40:01 +08:00
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I40E_VF_STAT_IWARPENA,
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2013-09-11 16:40:07 +08:00
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I40E_VF_STAT_FCOEENA,
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I40E_VF_STAT_DISABLED,
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2016-04-12 23:30:51 +08:00
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I40E_VF_STAT_MC_PROMISC,
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I40E_VF_STAT_UC_PROMISC,
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2013-09-11 16:40:07 +08:00
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};
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/* VF capabilities */
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enum i40e_vf_capabilities {
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I40E_VIRTCHNL_VF_CAP_PRIVILEGE = 0,
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I40E_VIRTCHNL_VF_CAP_L2,
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2016-01-21 03:40:01 +08:00
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I40E_VIRTCHNL_VF_CAP_IWARP,
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2013-09-11 16:40:07 +08:00
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};
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/* VF information structure */
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struct i40e_vf {
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struct i40e_pf *pf;
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2015-02-27 17:18:34 +08:00
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/* VF id in the PF space */
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2016-04-13 18:08:29 +08:00
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s16 vf_id;
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2015-02-27 17:18:34 +08:00
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/* all VF vsis connect to the same parent */
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2013-09-11 16:40:07 +08:00
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enum i40e_switch_element_types parent_type;
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2015-06-05 04:23:57 +08:00
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struct i40e_virtchnl_version_info vf_ver;
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u32 driver_caps; /* reported by VF driver */
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2013-09-11 16:40:07 +08:00
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2015-02-27 17:18:34 +08:00
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/* VF Port Extender (PE) stag if used */
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2013-09-11 16:40:07 +08:00
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u16 stag;
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struct i40e_virtchnl_ether_addr default_lan_addr;
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2013-11-28 14:39:34 +08:00
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u16 port_vlan_id;
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2013-11-28 14:39:42 +08:00
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bool pf_set_mac; /* The VMM admin set the VF MAC address */
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2016-04-01 18:56:07 +08:00
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bool trusted;
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2013-09-11 16:40:07 +08:00
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/* VSI indices - actual VSI pointers are maintained in the PF structure
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* When assigned, these will be non-zero, because VSI 0 is always
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* the main LAN VSI for the PF.
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*/
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2015-12-24 04:05:46 +08:00
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u16 lan_vsi_idx; /* index into PF struct */
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u16 lan_vsi_id; /* ID as used by firmware */
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2013-09-11 16:40:07 +08:00
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2015-02-27 17:18:34 +08:00
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u8 num_queue_pairs; /* num of qps assigned to VF vsis */
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2013-09-11 16:40:07 +08:00
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u64 num_mdd_events; /* num of mdd events detected */
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2015-09-29 02:12:39 +08:00
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/* num of continuous malformed or invalid msgs detected */
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u64 num_invalid_msgs;
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2013-09-11 16:40:07 +08:00
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u64 num_valid_msgs; /* num of valid msgs detected */
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unsigned long vf_caps; /* vf's adv. capabilities */
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unsigned long vf_states; /* vf's runtime states */
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2014-03-06 17:02:29 +08:00
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unsigned int tx_rate; /* Tx bandwidth limit in Mbps */
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2014-02-11 16:27:49 +08:00
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bool link_forced;
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2015-02-27 17:18:34 +08:00
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bool link_up; /* only valid if VF link is forced */
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2014-05-20 16:01:40 +08:00
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bool spoofchk;
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2016-04-13 18:08:22 +08:00
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u16 num_mac;
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u16 num_vlan;
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2016-01-21 03:40:01 +08:00
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/* RDMA Client */
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struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info;
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2013-09-11 16:40:07 +08:00
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};
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void i40e_free_vfs(struct i40e_pf *pf);
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int i40e_pci_sriov_configure(struct pci_dev *dev, int num_vfs);
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2014-02-13 19:48:47 +08:00
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int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs);
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2016-04-13 18:08:29 +08:00
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int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
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2013-09-11 16:40:07 +08:00
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u32 v_retval, u8 *msg, u16 msglen);
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int i40e_vc_process_vflr_event(struct i40e_pf *pf);
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2013-11-28 14:39:27 +08:00
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void i40e_reset_vf(struct i40e_vf *vf, bool flr);
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i40e: reset all VFs in parallel when rebuilding PF
When there are a lot of active VFs, it can take multiple seconds to
finish resetting all of them during certain flows., which can cause some
VFs to fail to wait long enough for the reset to occur. The user might
see messages like "Never saw reset" or "Reset never finished" and the VF
driver will stop functioning properly.
The naive solution would be to simply increase the wait timer. We can
get much more clever. Notice that i40e_reset_vf is run in a serialized
fashion, and includes lots of delays.
There are two prominent delays which take most of the time. First, when
we begin resetting VFs, we have multiple 10ms delays which accrue
because we reset each VF in a serial fashion. These delays accumulate to
almost 4 seconds when handling the maximum number of VFs (128).
Secondly, there is a massive 50ms delay for each time we disable queues
on a VSI. This delay is necessary to allow HW to finish disabling queues
before we restore functionality. However, just like with the first case,
we are paying the cost for each VF, rather than disabling all VFs and
waiting once.
Both of these can be fixed, but required some previous refactoring to
handle the special case. First, we will need the
i40e_vsi_wait_queues_disabled function which was previously DCB
specific. Second, we will need to implement our own
i40e_vsi_stop_rings_no_wait function which will handle the stopping of
rings without the delays.
Finally, implement an i40e_reset_all_vfs function, which will first
start the reset of all VFs, and pay the wait cost all at once, rather
than serially waiting for each VF before we start processing then next
one. After the VF has been reset, we'll disable all the VF queues, and
then wait for them to disable. Again, we'll organize the flow such that
we pay the wait cost only once.
Finally, after we've disabled queues we'll go ahead and begin restoring
VF functionality. The result is reducing the wait time by a large factor
and ensuring that VFs do not timeout when waiting in the VF driver.
Change-ID: Ia6e8cf8d98131b78aec89db78afb8d905c9b12be
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-04-13 16:45:52 +08:00
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void i40e_reset_all_vfs(struct i40e_pf *pf, bool flr);
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2013-09-11 16:40:07 +08:00
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void i40e_vc_notify_vf_reset(struct i40e_vf *vf);
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2015-02-27 17:18:34 +08:00
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/* VF configuration related iplink handlers */
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2013-09-11 16:40:07 +08:00
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int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac);
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2016-09-22 17:11:15 +08:00
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int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
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u16 vlan_id, u8 qos, __be16 vlan_proto);
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net-next:v4: Add support to configure SR-IOV VF minimum and maximum Tx rate through ip tool.
o min_tx_rate puts lower limit on the VF bandwidth. VF is guaranteed
to have a bandwidth of at least this value.
max_tx_rate puts cap on the VF bandwidth. VF can have a bandwidth
of up to this value.
o A new handler set_vf_rate for attr IFLA_VF_RATE has been introduced
which takes 4 arguments:
netdev, VF number, min_tx_rate, max_tx_rate
o ndo_set_vf_rate replaces ndo_set_vf_tx_rate handler.
o Drivers that currently implement ndo_set_vf_tx_rate should now call
ndo_set_vf_rate instead and reject attempt to set a minimum bandwidth
greater than 0 for IFLA_VF_TX_RATE when IFLA_VF_RATE is not yet
implemented by driver.
o If user enters only one of either min_tx_rate or max_tx_rate, then,
userland should read back the other value from driver and set both
for IFLA_VF_RATE.
Drivers that have not yet implemented IFLA_VF_RATE should always
return min_tx_rate as 0 when read from ip tool.
o If both IFLA_VF_TX_RATE and IFLA_VF_RATE options are specified, then
IFLA_VF_RATE should override.
o Idea is to have consistent display of rate values to user.
o Usage example: -
./ip link set p4p1 vf 0 rate 900
./ip link show p4p1
32: p4p1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode
DEFAULT qlen 1000
link/ether 00:0e:1e:08:b0:f0 brd ff:ff:ff:ff:ff:ff
vf 0 MAC 3e:a0:ca:bd:ae:5a, tx rate 900 (Mbps), max_tx_rate 900Mbps
vf 1 MAC f6:c6:7c:3f:3d:6c
vf 2 MAC 56:32:43:98:d7:71
vf 3 MAC d6:be:c3:b5:85:ff
vf 4 MAC ee:a9:9a:1e:19:14
vf 5 MAC 4a:d0:4c:07:52:18
vf 6 MAC 3a:76:44:93:62:f9
vf 7 MAC 82:e9:e7:e3:15:1a
./ip link set p4p1 vf 0 max_tx_rate 300 min_tx_rate 200
./ip link show p4p1
32: p4p1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode
DEFAULT qlen 1000
link/ether 00:0e:1e:08:b0:f0 brd ff:ff:ff:ff:ff:ff
vf 0 MAC 3e:a0:ca:bd:ae:5a, tx rate 300 (Mbps), max_tx_rate 300Mbps,
min_tx_rate 200Mbps
vf 1 MAC f6:c6:7c:3f:3d:6c
vf 2 MAC 56:32:43:98:d7:71
vf 3 MAC d6:be:c3:b5:85:ff
vf 4 MAC ee:a9:9a:1e:19:14
vf 5 MAC 4a:d0:4c:07:52:18
vf 6 MAC 3a:76:44:93:62:f9
vf 7 MAC 82:e9:e7:e3:15:1a
./ip link set p4p1 vf 0 max_tx_rate 600 rate 300
./ip link show p4p1
32: p4p1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode
DEFAULT qlen 1000
link/ether 00:0e:1e:08:b0:f brd ff:ff:ff:ff:ff:ff
vf 0 MAC 3e:a0:ca:bd:ae:5, tx rate 600 (Mbps), max_tx_rate 600Mbps,
min_tx_rate 200Mbps
vf 1 MAC f6:c6:7c:3f:3d:6c
vf 2 MAC 56:32:43:98:d7:71
vf 3 MAC d6:be:c3:b5:85:ff
vf 4 MAC ee:a9:9a:1e:19:14
vf 5 MAC 4a:d0:4c:07:52:18
vf 6 MAC 3a:76:44:93:62:f9
vf 7 MAC 82:e9:e7:e3:15:1a
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-22 21:59:05 +08:00
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int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
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int max_tx_rate);
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2016-04-01 18:56:07 +08:00
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int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting);
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2013-09-11 16:40:07 +08:00
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int i40e_ndo_get_vf_config(struct net_device *netdev,
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int vf_id, struct ifla_vf_info *ivi);
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2014-02-11 16:27:49 +08:00
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int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link);
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2014-07-12 15:28:14 +08:00
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int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable);
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2014-02-11 16:27:49 +08:00
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2013-09-11 16:40:07 +08:00
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void i40e_vc_notify_link_state(struct i40e_pf *pf);
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void i40e_vc_notify_reset(struct i40e_pf *pf);
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#endif /* _I40E_VIRTCHNL_PF_H_ */
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