Commit Graph

9 Commits

Author SHA1 Message Date
Iyappan Subramanian
bc61167ac8 drivers: net: xgene: Fix module unload crash - clkrst sequence
This patch fixes clock reset sequence.

- Added clock reset sequence for ACPI
- Added delay in clock reset sequence to make sure pulse is generated
- Added clk_unprepare_disable() in port shutdown to make sure
  clock increment/decrement counts are matching
- Removed MII_MGMT_CONFIG programming, since it is not required
- Fixed programming XGENET_CONFIG_REG to enable SGMII mode

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Tested-by: Fushen Chen <fchen@apm.com>
Tested-by: Toan Le <toanle@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-25 21:51:43 -07:00
Iyappan Subramanian
cb11c062f9 drivers: net: xgene: Fix module unload crash - hw resource cleanup
When the driver is configured as kernel module and when it gets
unloaded and reloaded, kernel crash was observed.  This patch
address the hardware resource cleanups by doing the following,

- Added mac_ops->clear() to do prefetch buffer clean up
- Fixed delete freepool buffers logic
- Reordered mac_enable and mac_disable
- Added Tx completion ring free
- Moved down delete_desc_rings after ring cleanup

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Tested-by: Fushen Chen <fchen@apm.com>
Tested-by: Toan Le <toanle@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-25 21:51:42 -07:00
Julia Lawall
3cdb730917 drivers: net: xgene: constify xgene_mac_ops and xgene_port_ops structures
The xgene_mac_ops and xgene_port_ops structures are never modified, so
declare them as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-08 21:39:32 -05:00
Iyappan Subramanian
9b00eb494d drivers: net: xgene: Adding support for TSO
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-27 13:51:38 -07:00
Suman Tripathi
c2d33bdc66 drivers: net: xgene: Check for IS_ERR rather than NULL for clock.
This patches fixes the code to check for IS_ERR rather
than NULL for clock interface.

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23 07:19:21 -07:00
Iyappan Subramanian
bc1b7c132a drivers: net: xgene: Add 10GbE support with ring manager v2
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-30 16:03:13 -04:00
Iyappan Subramanian
c3f4465d27 drivers: net: xgene: Backward compatibility with older firmware
This patch adds support when used with older firmware (<= 1.13.28).

- Added xgene_ring_mgr_init() to check whether ring manager is initialized
- Calling xgene_ring_mgr_init() from xgene_port_ops.reset()
- To handle errors, changed the return type of xgene_port_ops.reset()

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-04 17:08:42 -05:00
Iyappan Subramanian
dc8385f0c0 drivers: net: xgene: Preparing for adding SGMII based 1GbE
- Added link_state function pointer to the xgene__mac_ops structure
- Moved ring manager (pdata->rm) assignment to xgene_enet_setup_ops
- Removed unused variable (pdata->phy_addr) and macro (FULL_DUPLEX)

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-14 16:09:21 -04:00
Iyappan Subramanian
0148d38d36 drivers: net: xgene: Add 10GbE support
- Added 10GbE support
- Removed unused macros/variables
- Moved mac_init call to the end of hardware init

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-10 15:06:59 -04:00