Commit Graph

61 Commits

Author SHA1 Message Date
Bhadram Varka
6066208fbb nvethernet: skip buffer allocation/mapping for PTP software context
Receive timestamp for a received packet will be in context descriptor
which is immediate of normal descriptor (has valid packet data)
In current case nvethernet driver only unmap normal descriptor buffer
address and provide the buffer to the network stack for data processing.
Context descriptor buffer is not unmapped which leads to running out of
IOVA space for the new buffers.

Context descriptor buffer can be used as is since that is not provided
to the network stack. So this change to skip new buffer allocation and
mapping for the context descriptor which has receive timestamp and use
already allocated buffer.

Bug 2700522

Change-Id: I55ef09286d20262384f792aa8875523ab3d3e9b9
Signed-off-by: Bhadram Varka <vbhadram@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2214732
Reviewed-by: Rakesh Goyal <rgoyal@nvidia.com>
Reviewed-by: Srinivas Ramachandran <srinivasra@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2022-11-01 14:27:07 +05:30
Bhadram Varka
e4f82ebb78 nvethernet: use maximum transmit buffer size
1) Removes the limitation of 4KB per descriptor.
2) Adds maximum transmit buffer size as 0x3FFF.
3) Changes descripors threshold considering TSO/GSO.

Bug 200542488

Change-Id: Ic32d5e1e49df48b0da057349f8300d029410d322
Signed-off-by: Bhadram Varka <vbhadram@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2174519
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2022-11-01 14:27:07 +05:30
Bhadram Varka
58301a3ef2 nvethernet: Update comments with Doxygen style
replace kernel doc comments with Doxygen style comments

Bug 200512422

Change-Id: I1445cab3fb6708ddc21b4bfacebe213ed22f7aa2
Signed-off-by: Bhadram Varka <vbhadram@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2180213
Reviewed-by: Narayan Reddy <narayanr@nvidia.com>
Tested-by: Narayan Reddy <narayanr@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Srinivas Ramachandran <srinivasra@nvidia.com>
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2022-11-01 14:27:07 +05:30
Rakesh Goyal
134a4c1057 nvethernet: handle various mtl and dma combination
Issue:
1) MTL Queue can be in any order in input to DT. If not
initialized sw can crash.
2) Don't use return value of skb_get_queue_mapping as
channel number.

Fix:
1) As MTL Queue sequence is already read, use it for
initialization and storing corresponding configuration.
2) Derive the channel number based on the q index
provided by skb_get_queue_mapping.

Bug 200512422

Change-Id: I145f67ee07101ae69821b5ae4a770e512252985b
Signed-off-by: Rakesh Goyal <rgoyal@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2156243
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2022-11-01 14:27:07 +05:30
Narayan Reddy
481b69b58a nvethernet: add support for RIWT
This support enables the configuration of Receive Interrupt
Watchdog Timer register which indicates the watchdog timeout for
Receive Interrupt (RI) from the DMA.

Bug 200512422
Bug 2624476

Change-Id: I01bf170faa3c0f337d433eb19ebec49270483e18
Signed-off-by: Narayan Reddy <narayanr@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2139369
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2022-11-01 14:27:07 +05:30
Rakesh Goyal
2f9ecd7d54 nvethernet: ethtool: add support for stats
These stats are read from MAC HW RMON counters as well as SW controlled
control from Core and DMA path.
ethtool -S <interface> is used to get statistics.
There are 3 stats
1) ether_mmc_counters: EQOS HW counters
2) ether_xtra_stat_counters: SW counters from osi/core
3) ether_xtra_dma_stat_counters: SW counters from osi/dma

Bug 200519211

Change-Id: I5b1b6592541c650f01e845667eca2f5c59bcfd08
Signed-off-by: Rakesh Goyal <rgoyal@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2113962
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2022-11-01 14:27:07 +05:30
Narayan Reddy
21dcef7b83 nvethernet: add PTP support
This takes care of implementing the PTP support
which includes PTP V1/V2 over IPV4,IPV6,Ethernet,gPTP.

Bug 200524751

Change-Id: Id647db1f60582717a09f24699841e00d7a582a1d
Signed-off-by: Narayan Reddy <narayanr@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2123439
GVS: Gerrit_Virtual_Submit
Reviewed-by: Srinivas Ramachandran <srinivasra@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2022-11-01 14:27:07 +05:30
Srinivas Ramachandran
e05030a4e2 nvethernet: Add support for ioctls and HW offloads
1. ARP offload can be configured via private ioctl.
   Application requesting the arp offload configuration
   should provide the IP address to be configured for
   ARP offload via ioctl data struct. Refer to
   struct ether_ifr_data and
   struct arp_offload_param for details.

2. Tx/Rx Checksum offload can be configured via ethtool

3. TCP Segmentation offload can be configured via ethtool

Bug 2571001

Change-Id: If639ab9049db97f200911af456ddb8cb8433fa12
Signed-off-by: Srinivas Ramachandran <srinivasra@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2109676
Reviewed-by: Rakesh Goyal <rgoyal@nvidia.com>
Reviewed-by: Narayan Reddy <narayanr@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Ashutosh Jha <ajha@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2022-11-01 14:27:07 +05:30
Narayan Reddy
01bab1179a nvethernet: check for pkt validity
Process only the valid received packets. Don't send packets
to network stack if they are not valid.

Bug 200515518

Change-Id: If5e630c82aeccfeb53da9dd6e7313301fe3cdf4c
Signed-off-by: Narayan Reddy <narayanr@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2109601
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Bhadram Varka <vbhadram@nvidia.com>
Reviewed-by: Rakesh Goyal <rgoyal@nvidia.com>
Reviewed-by: Srinivas Ramachandran <srinivasra@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2022-11-01 14:27:07 +05:30
Bhadram Varka
ec95665467 nvethernet: support for VLAN
Adds support for VLAN tag insertion on Tx path
and parsing of VLAN tag on receive path.

Bug 200511721

Change-Id: I07d4a576873bae61267244c9eb03a777f515a761
Signed-off-by: Bhadram Varka <vbhadram@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2077037
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2022-11-01 14:27:07 +05:30
Bhadram Varka
77ee94796d nvethernet: support for EQOS base MAC
1) support for driver probe based on nveqos
2) support for EQOS hw init
3) data transmission support for Tx and Rx

Bug 200507585

Change-Id: I5c8bc88f97b2e61a2b346a23aadcb19a7b8c53a5
Signed-off-by: Bhadram Varka <vbhadram@nvidia.com>
2022-11-01 14:27:07 +05:30