| e30e5407 | 11-Sep-2020 |
Rahul Lakkireddy <[email protected]> |
net/cxgbe: improve Rx congestion control
Chelsio T6 NIC can support up to 8 priority channels to manage
congestion. So, increase to 8 congestion channels for T6. Also,
add Rxq state to avoid unneces
net/cxgbe: improve Rx congestion control
Chelsio T6 NIC can support up to 8 priority channels to manage
congestion. So, increase to 8 congestion channels for T6. Also,
add Rxq state to avoid unnecessarily ringing doorbell and polling
the hardware for more traffic when the Rxq is stopped.
Signed-off-by: Rahul Lakkireddy <[email protected]>
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| 7b3d5298 | 11-Sep-2020 |
Rahul Lakkireddy <[email protected]> |
net/cxgbe: rework queue allocation between ports
Firmware returns the max queues that can be allocated on the entire
PF. The driver evenly distributes them across all the ports belonging
to the PF.
net/cxgbe: rework queue allocation between ports
Firmware returns the max queues that can be allocated on the entire
PF. The driver evenly distributes them across all the ports belonging
to the PF. However, some ports may need more queues than others and
this equal distribution scheme prevents accessing these other ports
unused queues. So, remove the equal distribution scheme and allow the
ports to allocate as many queues as they need.
Also remove the hardcoded 64 max limit on queue allocation. Instead,
use the max limit given by firmware.
Signed-off-by: Rahul Lakkireddy <[email protected]>
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| 536db938 | 11-Mar-2020 |
Karra Satwik <[email protected]> |
net/cxgbe: add devargs to control filtermode and filtermask
Apart from the 4-tuple (IP src/dst addresses and TCP/UDP src/dst
port addresses), there are only 40-bits available to match other
fields i
net/cxgbe: add devargs to control filtermode and filtermask
Apart from the 4-tuple (IP src/dst addresses and TCP/UDP src/dst
port addresses), there are only 40-bits available to match other
fields in packet headers. Not all combinations of packet header
fields can fit in the 40-bit tuple.
Currently, the combination of packet header fields to match are
configured via filterMode for LETCAM filters and filterMask for
HASH filters in firmware config files (t5/t6-config.txt). So, add
devargs to allow User to dynamically select the filterMode and
filterMask combination during runtime, without having to modify the
firmware config files and reflashing them onto the adapter. A table
of supported combinations is maintained by the driver to internally
translate the User specified devargs combination to hardware's internal
format before writing the requested combination to hardware
Signed-off-by: Karra Satwik <[email protected]>
Signed-off-by: Rahul Lakkireddy <[email protected]>
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| 629315fb | 11-Mar-2020 |
Karra Satwik <[email protected]> |
net/cxgbe: use firmware API for validating filter spec
Add new firmware API FW_PARAM_DEV_FILTER_MODE_MASK to fetch
the filtermode and filtermask values configured in hardware,
which are used to vali
net/cxgbe: use firmware API for validating filter spec
Add new firmware API FW_PARAM_DEV_FILTER_MODE_MASK to fetch
the filtermode and filtermask values configured in hardware,
which are used to validate the match combinations in the filter
spec before offloading the filter rules to hardware. For older
firmware that doesn't support the new API, fallback to older way
of directly reading from indirect registers
Signed-off-by: Karra Satwik <[email protected]>
Signed-off-by: Rahul Lakkireddy <[email protected]>
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| a99564c6 | 11-Mar-2020 |
Karra Satwik <[email protected]> |
net/cxgbe: support Source MAC Table
Source MAC Table (SMT) is used for storing Source MAC
addresses to be written in packets transmitted on the
wire. Hence, the SMT table can be used for overwriting
net/cxgbe: support Source MAC Table
Source MAC Table (SMT) is used for storing Source MAC
addresses to be written in packets transmitted on the
wire. Hence, the SMT table can be used for overwriting
Source MAC addresses in packets, hitting corresponding
filter rules inserted by the rte_flow API.
Query firmware for SMT start and size information available
to the underlying PF. Allocate and maintain the corresponding
driver's copy of the hardware SMT table, with appropriate
refcount mechanism. If SMT information is not available, then
use the entire hardware SMT table.
Signed-off-by: Karra Satwik <[email protected]>
Signed-off-by: Rahul Lakkireddy <[email protected]>
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| 24c1d49a | 11-Mar-2020 |
Karra Satwik <[email protected]> |
net/cxgbe: support flow API for matching all packets on VF
Add support to match all packets received on the underlying VF.
Use new firmware API to fetch the Virtual Interface Number (VIN)
allocated
net/cxgbe: support flow API for matching all packets on VF
Add support to match all packets received on the underlying VF.
Use new firmware API to fetch the Virtual Interface Number (VIN)
allocated to each VF by the firmware. The VIN is required to
write filter rules to match all packets on VFs, whose identifier
is beyond max 7-bit value (i.e. 127) in VIID.
If firmware doesn't support fetching the VIN information, then
fallback to manually retrieving the VIN value from the 7-bit field
in the VIID, which only supports in range of 0..127. In this case,
packets belonging to VFs, whose identifier is beyond 127 can't be
matched.
Signed-off-by: Karra Satwik <[email protected]>
Signed-off-by: Rahul Lakkireddy <[email protected]>
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