Commit Graph

65 Commits

Author SHA1 Message Date
Francois Romieu
7ab87ff4c7 via-rhine: move work from irq handler to softirq and beyond.
- Tx processing is moved from the irq handler to NAPI poll
- link events and obscure event processing is moved to its proper work queue

Locking rules undergo some changes through the driver.

- the driver offers the usual lock-free Tx path
- besides the IRQ handler, the link event task schedules the napi handler.
  The driver thus adds some internal locking to prevent a loop when both
  must be disabled.
- the reset task keeps being scheduled from the Tx watchdog handler, thus
  with implicit Tx queue disabling. It does not need to care about irq,
  only napi softirq and competing task.
- it is not worth to add a dedicated lock between {g, s}et_wol and
  rhine_shutdown. It should not hurt no narrow it down a bit though.
- rhine_reset_task must keep its huge spin_lock_bh protected section due
  to :
  - races for the CAM registers (see rhine_vlan_rx_{add, kill}_vid)
  - implicit use of napi_enable (see init_registers)
  - use of the same lock for stats read / update exclusion between
    napi rx processing and rhine_get_stats
- rhine_resume requires a softirq disabled section for the same reason
  as rhine_reset_task
- {free, request}_irq have been replaced with IntrEnable actions in
  rhine_{suspend, resume}. It is hidden behind init_registers for the
  latter.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2012-01-07 23:02:37 +01:00
Francois Romieu
a5abec1e84 via-rhine: remove useless forward declarations.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2012-01-07 23:02:37 +01:00
Francois Romieu
a20a28bc32 via-rhine: balance interrupt acknowledge and events retrieval.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2012-01-07 23:02:37 +01:00
Francois Romieu
269f3114b5 via-rhine: factor out tx_thresh handling
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2012-01-07 23:02:37 +01:00
Rusty Russell
eb93992207 module_param: make bool parameters really bool (net & drivers/net)
module_param(bool) used to counter-intuitively take an int.  In
fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy
trick.

It's time to remove the int/unsigned int option.  For this version
it'll simply give a warning, but it'll break next kernel version.

(Thanks to Joe Perches for suggesting coccinelle for 0/1 -> true/false).

Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-19 22:27:29 -05:00
Jiri Pirko
8e586137e6 net: make vlan ndo_vlan_rx_[add/kill]_vid return error value
Let caller know the result of adding/removing vlan id to/from vlan
filter.

In some drivers I make those functions to just return 0. But in those
where there is able to see if hw setup went correctly, return value is
set appropriately.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-08 19:52:37 -05:00
Rick Jones
23020ab353 Sweep additional floors of strcpy in .get_drvinfo routines
Perform another round of floor sweeping, converting the .get_drvinfo
routines of additional drivers from strcpy to strlcpy along with
some conversion of sprintf to snprintf.

Signed-off-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 00:35:46 -05:00
Eric Dumazet
9e903e0852 net: add skb frag size accessors
To ease skb->truesize sanitization, its better to be able to localize
all references to skb frags size.

Define accessors : skb_frag_size() to fetch frag size, and
skb_frag_size_{set|add|sub}() to manipulate it.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19 03:10:46 -04:00
Ian Campbell
5d6bcdfe38 net: use DMA_x_DEVICE and dma_mapping_error with skb_frag_dma_map
When I converted some drivers from pci_map_page to skb_frag_dma_map I
neglected to convert PCI_DMA_xDEVICE into DMA_x_DEVICE and
pci_dma_mapping_error into dma_mapping_error.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-06 16:17:20 -04:00
Ian Campbell
e4cb193f79 via-velocity: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Francois Romieu <romieu@fr.zoreil.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-09-22 16:04:17 -04:00
Jeff Kirsher
aaba215ca0 MII: fix Kconfig dependencies for MII
MII Kconfig option is apart of the core networking drivers and
by default NET_CORE is enabled so drivers selecting MII will
have MII enabled as well.  It was found using the randconfig
option during testing, MII would be selected but NET_CORE
could be disabled.  This caused a dependency error.

Resolved the dependency by selecting NET_CORE when MII is
selected.

Reported-by: Emil Tantilov <emil.s.tantilov@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-09-15 15:49:08 -04:00
Jeff Kirsher
88f07484cc drivers/net/ethernet/*: Enabled vendor Kconfig options
Based on finds for Stephen Rothwell, where current defconfig's
enable a ethernet driver and it is not compiled due to the newly
added NET_VENDOR_* component of Kconfig.

This patch enables all the "new" Kconfig options so that current
defconfig's will continue to compile the expected drivers.  In
addition, by enabling all the new Kconfig options does not add
any un-expected options.

CC: Stephen Rothwll <sfc@canb.auug.org.au>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-27 00:58:56 -07:00
David S. Miller
823dcd2506 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net 2011-08-20 10:39:12 -07:00
Jiri Pirko
afc4b13df1 net: remove use of ndo_set_multicast_list in drivers
replace it by ndo_set_rx_mode

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-17 20:22:03 -07:00
Jeff Kirsher
f2148a4728 via-*: Move the VIA drivers
Move the VIA drivers into drivers/net/ethernet/via/ and make the
necessary Kconfig and Makefile changes.

CC: Roger Luethi <rl@hellgate.ch>
CC: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-12 00:21:56 -07:00