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linux-pinenote/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82599.h

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ixgbe: Add DCB for 82599, remove BCN support This patch adds the DCB (Data Center Bridging) support for 82599 hardware. This is similar to how the 82598 DCB code works. This patch also removes the BCN (Backwards Congestion Notification) netlink configuration code from the driver. BCN was a pre-standard congestion notification framework, and was not what the IEEE body decided upon for standard congestion management. QCN (802.1Qau), Quantized Congestion Notification is the accepted standard, which is not supported by 82599, hence we remove the support altogether. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-27 15:44:48 +00:00
/*******************************************************************************
Intel 10 Gigabit PCI Express Linux driver
ixgbe: update date to 2013 Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-01-08 05:02:28 +00:00
Copyright(c) 1999 - 2013 Intel Corporation.
ixgbe: Add DCB for 82599, remove BCN support This patch adds the DCB (Data Center Bridging) support for 82599 hardware. This is similar to how the 82598 DCB code works. This patch also removes the BCN (Backwards Congestion Notification) netlink configuration code from the driver. BCN was a pre-standard congestion notification framework, and was not what the IEEE body decided upon for standard congestion management. QCN (802.1Qau), Quantized Congestion Notification is the accepted standard, which is not supported by 82599, hence we remove the support altogether. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-27 15:44:48 +00:00
This program is free software; you can redistribute it and/or modify it
under the terms and conditions of the GNU General Public License,
version 2, as published by the Free Software Foundation.
This program is distributed in the hope it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
The full GNU General Public License is included in this distribution in
the file called "COPYING".
Contact Information:
e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*******************************************************************************/
#ifndef _DCB_82599_CONFIG_H_
#define _DCB_82599_CONFIG_H_
/* DCB register definitions */
#define IXGBE_RTTDCS_TDPAC 0x00000001 /* 0 Round Robin,
* 1 WSP - Weighted Strict Priority
*/
#define IXGBE_RTTDCS_VMPAC 0x00000002 /* 0 Round Robin,
* 1 WRR - Weighted Round Robin
*/
#define IXGBE_RTTDCS_TDRM 0x00000010 /* Transmit Recycle Mode */
#define IXGBE_RTTDCS_ARBDIS 0x00000040 /* DCB arbiter disable */
#define IXGBE_RTTDCS_BDPM 0x00400000 /* Bypass Data Pipe - must clear! */
#define IXGBE_RTTDCS_BPBFSM 0x00800000 /* Bypass PB Free Space - must
* clear!
*/
#define IXGBE_RTTDCS_SPEED_CHG 0x80000000 /* Link speed change */
/* Receive UP2TC mapping */
#define IXGBE_RTRUP2TC_UP_SHIFT 3
IXGBE: Set the SW prio_tc values at initialization to the HW setting. Set the SW prio_tc values at initialization to the HW setting. Setting the SW prio_tc default values to be the HW setting by reading the rtrup2tc register. For any TC change we need to reset the device. This will remove the need to reset the device at the first time we call ixgbe_dcbnl_ieee_setets. Signed-off-by: Amir Hanania <amir.hanania@intel.com> Tested-by: Jack Morgan<jack.morgan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-04-18 04:23:52 +00:00
#define IXGBE_RTRUP2TC_UP_MASK 7
ixgbe: Add DCB for 82599, remove BCN support This patch adds the DCB (Data Center Bridging) support for 82599 hardware. This is similar to how the 82598 DCB code works. This patch also removes the BCN (Backwards Congestion Notification) netlink configuration code from the driver. BCN was a pre-standard congestion notification framework, and was not what the IEEE body decided upon for standard congestion management. QCN (802.1Qau), Quantized Congestion Notification is the accepted standard, which is not supported by 82599, hence we remove the support altogether. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-27 15:44:48 +00:00
/* Transmit UP2TC mapping */
#define IXGBE_RTTUP2TC_UP_SHIFT 3
#define IXGBE_RTRPT4C_MCL_SHIFT 12 /* Offset to Max Credit Limit setting */
#define IXGBE_RTRPT4C_BWG_SHIFT 9 /* Offset to BWG index */
#define IXGBE_RTRPT4C_GSP 0x40000000 /* GSP enable bit */
#define IXGBE_RTRPT4C_LSP 0x80000000 /* LSP enable bit */
#define IXGBE_RDRXCTL_MPBEN 0x00000010 /* DMA config for multiple packet
* buffers enable
*/
#define IXGBE_RDRXCTL_MCEN 0x00000040 /* DMA config for multiple cores
* (RSS) enable
*/
/* RTRPCS Bit Masks */
#define IXGBE_RTRPCS_RRM 0x00000002 /* Receive Recycle Mode enable */
/* Receive Arbitration Control: 0 Round Robin, 1 DFP */
#define IXGBE_RTRPCS_RAC 0x00000004
#define IXGBE_RTRPCS_ARBDIS 0x00000040 /* Arbitration disable bit */
/* RTTDT2C Bit Masks */
#define IXGBE_RTTDT2C_MCL_SHIFT 12
#define IXGBE_RTTDT2C_BWG_SHIFT 9
#define IXGBE_RTTDT2C_GSP 0x40000000
#define IXGBE_RTTDT2C_LSP 0x80000000
#define IXGBE_RTTPT2C_MCL_SHIFT 12
#define IXGBE_RTTPT2C_BWG_SHIFT 9
#define IXGBE_RTTPT2C_GSP 0x40000000
#define IXGBE_RTTPT2C_LSP 0x80000000
/* RTTPCS Bit Masks */
#define IXGBE_RTTPCS_TPPAC 0x00000020 /* 0 Round Robin,
* 1 SP - Strict Priority
*/
#define IXGBE_RTTPCS_ARBDIS 0x00000040 /* Arbiter disable */
#define IXGBE_RTTPCS_TPRM 0x00000100 /* Transmit Recycle Mode enable */
#define IXGBE_RTTPCS_ARBD_SHIFT 22
#define IXGBE_RTTPCS_ARBD_DCB 0x4 /* Arbitration delay in DCB mode */
ixgbe: DCB, fix TX hang occurring in stress condition with PFC The DCB credits refill quantum _must_ be greater than half the max packet size. This is needed to guarantee that TX DMA operations are not attempted during a pause state. Additionally, the min IFG must be set correctly for DCB mode. If a DMA operation is requested unexpectedly during the pause state the HW data store may be corrupted leading to a DMA hang. The DMA hang requires a reset to correct. This fixes the HW configuration to avoid this condition. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-28 00:59:57 +00:00
/* SECTXMINIFG DCB */
#define IXGBE_SECTX_DCB 0x00001F00 /* DCB TX Buffer IFG */
ixgbe: Add DCB for 82599, remove BCN support This patch adds the DCB (Data Center Bridging) support for 82599 hardware. This is similar to how the 82598 DCB code works. This patch also removes the BCN (Backwards Congestion Notification) netlink configuration code from the driver. BCN was a pre-standard congestion notification framework, and was not what the IEEE body decided upon for standard congestion management. QCN (802.1Qau), Quantized Congestion Notification is the accepted standard, which is not supported by 82599, hence we remove the support altogether. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-27 15:44:48 +00:00
/* DCB hardware-specific driver APIs */
/* DCB PFC functions */
ixgbe: fixup hard dependencies on supporting 8 traffic classes This patch correctly configures DCB when less than 8 traffic classes are available in hardware. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-09-27 03:51:56 +00:00
s32 ixgbe_dcb_config_pfc_82599(struct ixgbe_hw *hw, u8 pfc_en, u8 *prio_tc);
ixgbe: Add DCB for 82599, remove BCN support This patch adds the DCB (Data Center Bridging) support for 82599 hardware. This is similar to how the 82598 DCB code works. This patch also removes the BCN (Backwards Congestion Notification) netlink configuration code from the driver. BCN was a pre-standard congestion notification framework, and was not what the IEEE body decided upon for standard congestion management. QCN (802.1Qau), Quantized Congestion Notification is the accepted standard, which is not supported by 82599, hence we remove the support altogether. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-27 15:44:48 +00:00
/* DCB hw initialization */
ixgbe: DCB, abstract out dcb_config from DCB hardware configuration Currently the routines that configure the HW for DCB require a ixgbe_dcb_config structure. This structure was designed to support the CEE standard and does not match the IEEE standard well. This patch changes the HW routines in ixgbe_dcb_8259x.{ch} to use raw pfc and bandwidth values. This requires some parsing of the DCB configuration but makes the HW routines independent of the data structure that contains the DCB configuration. The primary advantage to doing this is we can do HW setup directly from the 802.1Qaz ops without having to arbitrarily encapsulate this data into the CEE structure. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-01-05 04:47:43 +00:00
s32 ixgbe_dcb_config_rx_arbiter_82599(struct ixgbe_hw *hw,
u16 *refill,
u16 *max,
u8 *bwg_id,
ixgbe: IEEE 802.1Qaz, implement priority assignment table This patch adds support to use the priority assignment table in the ieee_ets structure to map priorities to traffic classes. Previously ixgbe only supported a 1:1 mapping. Now we can enable and disable hardware DCB support when multiple traffic classes are actually being used. This allows the default case all priorities mapped to traffic class 0 to work in normal hardware mode and utilize the full packet buffer. This patch does not address putting the hardware in 4TC mode so packet buffer space may be underutilized in this case. A follow up patch can address this optimization. But at least we have the hooks to do this now. Also CEE will behave as it always has and map priorities 1:1 with traffic classes. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-02-23 05:58:19 +00:00
u8 *prio_type,
u8 *prio_tc);
ixgbe: DCB, abstract out dcb_config from DCB hardware configuration Currently the routines that configure the HW for DCB require a ixgbe_dcb_config structure. This structure was designed to support the CEE standard and does not match the IEEE standard well. This patch changes the HW routines in ixgbe_dcb_8259x.{ch} to use raw pfc and bandwidth values. This requires some parsing of the DCB configuration but makes the HW routines independent of the data structure that contains the DCB configuration. The primary advantage to doing this is we can do HW setup directly from the 802.1Qaz ops without having to arbitrarily encapsulate this data into the CEE structure. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-01-05 04:47:43 +00:00
s32 ixgbe_dcb_config_tx_desc_arbiter_82599(struct ixgbe_hw *hw,
u16 *refill,
u16 *max,
u8 *bwg_id,
u8 *prio_type);
s32 ixgbe_dcb_config_tx_data_arbiter_82599(struct ixgbe_hw *hw,
u16 *refill,
u16 *max,
u8 *bwg_id,
ixgbe: IEEE 802.1Qaz, implement priority assignment table This patch adds support to use the priority assignment table in the ieee_ets structure to map priorities to traffic classes. Previously ixgbe only supported a 1:1 mapping. Now we can enable and disable hardware DCB support when multiple traffic classes are actually being used. This allows the default case all priorities mapped to traffic class 0 to work in normal hardware mode and utilize the full packet buffer. This patch does not address putting the hardware in 4TC mode so packet buffer space may be underutilized in this case. A follow up patch can address this optimization. But at least we have the hooks to do this now. Also CEE will behave as it always has and map priorities 1:1 with traffic classes. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-02-23 05:58:19 +00:00
u8 *prio_type,
u8 *prio_tc);
ixgbe: DCB, abstract out dcb_config from DCB hardware configuration Currently the routines that configure the HW for DCB require a ixgbe_dcb_config structure. This structure was designed to support the CEE standard and does not match the IEEE standard well. This patch changes the HW routines in ixgbe_dcb_8259x.{ch} to use raw pfc and bandwidth values. This requires some parsing of the DCB configuration but makes the HW routines independent of the data structure that contains the DCB configuration. The primary advantage to doing this is we can do HW setup directly from the 802.1Qaz ops without having to arbitrarily encapsulate this data into the CEE structure. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-01-05 04:47:43 +00:00
ixgbe: consolidate packet buffer allocation Consolidate packet buffer allocation currently being done in the DCB path and main path. This allows the feature set and packet buffer requirements to be done once. This is prep work to allow DCB to coexist with other features namely, flow director. CC: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-02 12:34:10 +00:00
s32 ixgbe_dcb_hw_config_82599(struct ixgbe_hw *hw, u8 pfc_en, u16 *refill,
ixgbe: IEEE 802.1Qaz, implement priority assignment table This patch adds support to use the priority assignment table in the ieee_ets structure to map priorities to traffic classes. Previously ixgbe only supported a 1:1 mapping. Now we can enable and disable hardware DCB support when multiple traffic classes are actually being used. This allows the default case all priorities mapped to traffic class 0 to work in normal hardware mode and utilize the full packet buffer. This patch does not address putting the hardware in 4TC mode so packet buffer space may be underutilized in this case. A follow up patch can address this optimization. But at least we have the hooks to do this now. Also CEE will behave as it always has and map priorities 1:1 with traffic classes. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-02-23 05:58:19 +00:00
u16 *max, u8 *bwg_id, u8 *prio_type,
u8 *prio_tc);
ixgbe: Add DCB for 82599, remove BCN support This patch adds the DCB (Data Center Bridging) support for 82599 hardware. This is similar to how the 82598 DCB code works. This patch also removes the BCN (Backwards Congestion Notification) netlink configuration code from the driver. BCN was a pre-standard congestion notification framework, and was not what the IEEE body decided upon for standard congestion management. QCN (802.1Qau), Quantized Congestion Notification is the accepted standard, which is not supported by 82599, hence we remove the support altogether. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-27 15:44:48 +00:00
#endif /* _DCB_82599_CONFIG_H */
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