Optimize DMA in NUMA systems by allocating memory from NUMA node that NIC
is plugged in to; DMA will no longer cross NUMA nodes. If NIC IRQs are
pinned to a local CPU, that CPU's access to the DMA'd data is also
optimized.
Signed-off-by: VSR Burru <veerasenareddy.burru@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com>
Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Because every call to octeon_flush_iq() has a hardcoded 1 for the
pending_thresh argument, simplify that function by removing that argument.
This avoids one atomic read as well.
Signed-off-by: Derek Chickles <derek.chickles@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
alloc_workqueue replaces deprecated create_workqueue().
A dedicated workqueue has been used since the workitem viz
(&db_wq->wk.work which maps to check_db_timeout) is involved
in normal device operation. WQ_MEM_RECLAIM has been set to guarantee
forward progress under memory pressure, which is a requirement here.
Since there are only a fixed number of work items, explicit concurrency
limit is unnecessary.
flush_workqueue is unnecessary since destroy_workqueue() itself calls
drain_workqueue() which flushes repeatedly till the workqueue
becomes empty.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The vfree() function performs also input parameter validation.
Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
1) Fixed following sparse warnings:
lio_main.c:213:6: warning: symbol 'octeon_droq_bh' was not
declared. Should it be static?
lio_main.c:233:5: warning: symbol 'lio_wait_for_oq_pkts' was
not declared. Should it be static?
lio_main.c:3083:5: warning: symbol 'lio_nic_info' was not
declared. Should it be static?
lio_main.c:2618:16: warning: cast from restricted __be16
octeon_device.c:466:6: warning: symbol 'oct_set_config_info'
was not declared. Should it be static?
octeon_device.c:573:25: warning: cast to restricted __be32
octeon_device.c:582:29: warning: cast to restricted __be32
octeon_device.c:584:39: warning: cast to restricted __be32
octeon_device.c:594:13: warning: cast to restricted __be32
octeon_device.c:596:25: warning: cast to restricted __be32
octeon_device.c:613:25: warning: cast to restricted __be32
octeon_device.c:614:29: warning: cast to restricted __be64
octeon_device.c:615:29: warning: cast to restricted __be32
octeon_device.c:619:37: warning: cast to restricted __be32
octeon_device.c:623:33: warning: cast to restricted __be32
cn66xx_device.c:540:6: warning: symbol
'lio_cn6xxx_get_pcie_qlmport' was not declared. Should it be s
octeon_mem_ops.c:181:16: warning: cast to restricted __be64
octeon_mem_ops.c:190:16: warning: cast to restricted __be32
octeon_mem_ops.c:196:17: warning: incorrect type in initializer
2) Fix build errors corresponding to vmalloc on linux-next 4.1.
3) Liquidio now supports 64 bit only, modified Kconfig accordingly.
4) Fix some code alignment issues based on kernel build warnings.
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Following patch V8 adds support for Cavium Liquidio pci express
based 10Gig ethernet adapters.
1) Consolidated all debug macros to either call dev_* or
netdev_* macros directly, feedback from previous patch.
2) Changed soft commands to avoid crash when running
in interrupt context.
3) Fixed link status not reflecting correct status when NetworkManager
is running. Added MODULE_FIRMWARE declarations.
Following were the previous patches.
Patch V7:
1) Minor comments from v6 release regarding debug statements.
2) Fix for large multicast lists.
3) Fixed lockup issue if port initialization fails.
4) Enabled MSI by default.
https://patchwork.ozlabs.org/patch/464441/
Patch V6:
1) Addressed the uint64 vs u64 issue, feedback from previous patch.
2) Consolidated some receive processing routines.
3) Removed link status polling method.
https://patchwork.ozlabs.org/patch/459514/
Patch V5:
Based on the feedback from earlier patches with regards to
consolidation of common functions like device init, register
programming for cn66xx and cn68xx devices.
https://patchwork.ozlabs.org/patch/438979/
Patch V4:
Following were the changes based on the feedback from earlier patch:
1) Added mmiowb while synchronizing queue updates and other hw
interactions.
2) Statistics will now be incremented non-atomically per each ring.
liquidio_get_stats will add stats of each ring while reporting the
total statistics counts.
3) Modified liquidio_ioctl to return proper return codes.
4) Modified device naming to use standard Ethernet naming.
5) Global function names in the driver will have lio_/liquidio_/octeon_
prefix.
6) Ethtool related changes for:
Removed redundant stats and jiffies.
Use default ethtool handler of link status.
Speed setting will make use of ethtool_cmd_speed_set.
7) Added checks for pci_map_* return codes.
8) Check for signals while waiting in interruptible mode
https://patchwork.ozlabs.org/patch/435073/
Patch v3:
Implemented feedback from previous patch like:
Removed NAPI Config and DEBUG config options, added BQL and xmit_more
support.
https://patchwork.ozlabs.org/patch/422749/
Patch V2:
Implemented feedback from previous patch.
https://patchwork.ozlabs.org/patch/413539/
First Patch:
https://patchwork.ozlabs.org/patch/412946/
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Robert Richter <Robert.Richter@caviumnetworks.com>
Signed-off-by: Aleksey Makarov <Aleksey.Makarov@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
