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path: root/drivers/net/ixgbe/ixgbe_dcb_82599.h
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* intel: Move the Intel wired LAN driversJeff Kirsher2011-08-101-123/+0
| | | | | | | Moves the Intel wired LAN drivers into drivers/net/ethernet/intel/ and the necessary Kconfig and Makefile changes. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* ixgbe: consolidate packet buffer allocationJohn Fastabend2011-06-211-13/+1
| | | | | | | | | | | | | | | 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>
* ixgbe: DCB, misallocated packet buffer size with X540 deviceJohn Fastabend2011-04-131-0/+2
| | | | | | | | | | | | | | | | | | The X540 device has a smaller packet buffer but the DCB configuration never took this into account. Under stress this can result in the DMA engine hanging and TX Unit hang occurring to reset the device. This patch reworks the packet buffer allocation routine used for DCB on 82599 and X540 devices to account for RX packet buffer sizes. This fixes the immediate hang. We should consolidate the various hardware specific routines for configuring features into a single routine. This will make it much harder to miss feature cases like this. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Tested-by: Evan Swanson <evan.swanson@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* ixgbe: IEEE 802.1Qaz, implement priority assignment tableJohn Fastabend2011-03-121-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* ixgbe: cleanup copyright string for 2011Don Skidmore2011-03-031-1/+1
| | | | | | | | | Updating the copyrights for 2011 as well as make the ixgbe_copyright string a constant. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* ixgbe: DCB, abstract out dcb_config from DCB hardware configurationJohn Fastabend2011-02-111-3/+21
| | | | | | | | | | | | | | | | | | | 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>
* ixgbe: DCB, fix TX hang occurring in stress condition with PFCJohn Fastabend2010-10-281-0/+3
| | | | | | | | | | | | | | | | 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>
* ixgbe: declare functions as staticEmil Tantilov2010-10-141-12/+0
| | | | | | | | | | | | Following patch fixes warnings reported by `make namespacecheck` Reported by Stephen Hemminger CC: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ixgbe: remove unused functionsEmil Tantilov2010-10-141-6/+0
| | | | | | | | | | | | | Remove functions that are declared, but not used in the driver. This patch fixes warnings reported by `make namespacecheck` Reported by Stephen Hemminger CC: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ixgbe: update copyright datesShannon Nelson2010-01-131-1/+1
| | | | | | Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ixgbe: Add DCB for 82599, remove BCN supportPJ Waskiewicz2009-03-011-0/+127
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>
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