Commit Graph

429 Commits

Author SHA1 Message Date
stephen hemminger 166a0fd4c7 sky2: leave PCI config space writeable
Since power management is done by PCI subsystem as well as driver,
don't toggle the bit that disables PCI register writes.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-14 22:07:15 -08:00
stephen hemminger dae3a5112d sky2: print Optima chip name
Off by one in name lookup makes Optima display as (chip 0xbc)

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-14 22:07:15 -08:00
David S. Miller 501706565b Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
	include/net/tcp.h
2009-12-11 17:12:17 -08:00
Takashi Iwai d66f0b20b2 net: Add missing TST_CFG_WRITE bits around sky2_pci_write
Add missing TST_CFG_WRITE bits around sky2_pci_write*() in Optima
setup routines.  Without the cfg-write bits, the driver may spew endless
link-up messages through qlink irq.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-11 14:54:31 -08:00
Takashi Iwai b338682dc5 net: Fix Yukon-2 Optima TCP offload setup
Fix the TCP offload setup for Yukon-2 Optima.
It requires SKY2_HW_NE_LE flag unlike Ultra 2.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-11 14:54:31 -08:00
Linus Torvalds 4ef58d4e2a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (42 commits)
  tree-wide: fix misspelling of "definition" in comments
  reiserfs: fix misspelling of "journaled"
  doc: Fix a typo in slub.txt.
  inotify: remove superfluous return code check
  hdlc: spelling fix in find_pvc() comment
  doc: fix regulator docs cut-and-pasteism
  mtd: Fix comment in Kconfig
  doc: Fix IRQ chip docs
  tree-wide: fix assorted typos all over the place
  drivers/ata/libata-sff.c: comment spelling fixes
  fix typos/grammos in Documentation/edac.txt
  sysctl: add missing comments
  fs/debugfs/inode.c: fix comment typos
  sgivwfb: Make use of ARRAY_SIZE.
  sky2: fix sky2_link_down copy/paste comment error
  tree-wide: fix typos "couter" -> "counter"
  tree-wide: fix typos "offest" -> "offset"
  fix kerneldoc for set_irq_msi()
  spidev: fix double "of of" in comment
  comment typo fix: sybsystem -> subsystem
  ...
2009-12-09 19:43:33 -08:00
Brandon Philips 809aaaae16 sky2: fix sky2_link_down copy/paste comment error
Fix copy/paste comment error from sky2_link_up to sky2_link_down.

Signed-off-by: Brandon Philips <bphilips@suse.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-12-04 15:39:51 +01:00
Joe Perches 8e95a2026f drivers/net: Move && and || to end of previous line
Only files where David Miller is the primary git-signer.
wireless, wimax, ixgbe, etc are not modified.

Compile tested x86 allyesconfig only
Not all files compiled (not x86 compatible)

Added a few > 80 column lines, which I ignored.
Existing checkpatch complaints ignored.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-03 13:18:01 -08:00
David S. Miller 230f9bb701 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/usb/cdc_ether.c

All CDC ethernet devices of type USB_CLASS_COMM need to use
'&mbm_info'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06 00:55:55 -08:00
Brandon Philips 33cb7d33a1 sky2: set carrier off in probe
Before bringing up a sky2 interface up ethtool reports
"Link detected: yes". Do as ixgbe does and netif_carrier_off() on
probe().

Signed-off-by: Brandon Philips <bphilips@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-30 12:25:16 -07:00
Stephen Hemminger ac958154e9 sky2: version 1.26
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-29 22:57:33 -07:00
Stephen Hemminger 0f5aac7070 sky2: 88E8059 support
Tentative support for newer Marvell hardware including
the Yukon-2 Optima chip. Do not have hatdware to test this yet,
code is based on vendor driver.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-29 22:57:30 -07:00
Stephen Hemminger 877c8570fb sky2: workarounds for Yukon-2 supreme
Changes related to support of Yukon supreme chip.
Don't have this chip version to test on,
these are reverse engineered from the vendor (GPL) driver.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-29 22:57:29 -07:00
Stephen Hemminger d6b54d241c sky2: fix receive pause thresholds
Program the receive pause thresholds differently depending on
chip version. This cloned from from the vendor (GPL) driver.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-29 22:57:27 -07:00
Stephen Hemminger e30a4ac243 sky2: add SK-9E21M device id
This is a new ID that just showed up in latest vendor driver.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-29 22:57:23 -07:00
Eric Dumazet 89d71a66c4 net: Use netdev_alloc_skb_ip_align()
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-13 11:48:18 -07:00
Stephen Hemminger 66466797c7 sky2: irqname based on pci address
This is based on Michal Schmidt fix for skge.

Most network drivers request their IRQ when the interface is activated.
sky2 does it in ->probe() instead, because it can work with two-port
cards where the two net_devices use the same IRQ. This works fine most
of the time, except in some situations when the interface gets renamed.
Consider this example:

1. modprobe sky2
   The card is detected as eth0 and requests IRQ 17. Directory
   /proc/irq/17/eth0 is created.
2. There is an udev rule which says this interface should be called
   eth1, so udev renames eth0 -> eth1.
3. modprobe 8139too
   The Realtek card is detected as eth0. It will be using IRQ 17 too.
4. ip link set eth0 up
   Now 8139too requests IRQ 17.

The result is:
WARNING: at fs/proc/generic.c:590 proc_register ...
proc_dir_entry '17/eth0' already registered

The fix is for sky2 to name the irq based on the pci device, as is done
by some other devices DRM, infiniband, ...  ie. sky2@pci:0000:00:00

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Reviewed-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-01 15:14:55 -07:00
David S. Miller 8b3f6af863 Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
	drivers/staging/Kconfig
	drivers/staging/Makefile
	drivers/staging/cpc-usb/TODO
	drivers/staging/cpc-usb/cpc-usb_drv.c
	drivers/staging/cpc-usb/cpc.h
	drivers/staging/cpc-usb/cpc_int.h
	drivers/staging/cpc-usb/cpcusb.h
2009-09-24 15:13:11 -07:00
Mike McCormack 74a61ebf65 sky2: Set SKY2_HW_RAM_BUFFER in sky2_init
The SKY2_HW_RAM_BUFFER bit in hw->flags was checked in sky2_mac_init(),
 before being set later in sky2_up().

Setting SKY2_HW_RAM_BUFFER in sky2_init() where other hw->flags are set
 should avoid this problem recurring.

Signed-off-by: Mike McCormack <mikem@ring3k.org>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-22 14:00:11 -07:00
Joe Perches a419aef8b8 trivial: remove unnecessary semicolons
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-09-21 15:14:58 +02:00
Stephen Hemminger ca519274d5 sky2: Make sure both ports initialize correctly
Sorry Mike, I sent you off the wrong way. The following is simpler and the
second port is diffrent enough in setup (because of NAPI), that the
following is simpler.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-15 02:50:04 -07:00
Stephen Hemminger 07e3163774 sky2: transmit ring accounting
Be more accurate about number of transmit list elements required.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-15 02:49:57 -07:00
Ben Hutchings 7ab0f2736b netdev: Remove redundant checks for CAP_NET_ADMIN in MDIO implementations
dev_ioctl() already checks capable(CAP_NET_ADMIN) before calling the
driver's implementation of MDIO ioctls.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 20:02:11 -07:00
Stephen Hemminger c23ddf8f22 sky2: only enable Vaux if capable of wakeup
While perusing vendor driver, I saw that it did not enable the Vaux
power unless device was able to wake from lan for D3cold.
This might help for Rene's power issue.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-03 20:02:05 -07:00
Mike McCormack 72c6068328 sky2: Use 32bit read to read Y2_VAUX_AVAIL
B0_CTST is a 24bit register according to the vendor driver (sk98lin).
A 16bit read on B0_CTST will always return 0 for Y2_VAUX_AVAIL (1<<16),
 so use a 32bit read when testing Y2_VAUX_AVAIL

Signed-off-by: Mike McCormack <mikem@ring3k.org>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-01 17:40:44 -07:00
Mike McCormack 90bbebb4a8 sky2: Create buffer alloc and free helpers
Refactor similar two sections of code that free buffers into one.
Only call tx_init if all buffer allocations succeed.

Signed-off-by: Mike McCormack <mikem@ring3k.org>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-01 17:40:42 -07:00
Stephen Hemminger 10547ae2c0 sky2: fix management of driver LED
Observed by Mike McCormack.

The LED bit here is just a software controlled value used to
turn on one of the LED's on some boards. The register value was wrong,
which could have been causing some power control issues.
Get rid of problematic define use the correct mask.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-01 17:40:35 -07:00
Stephen Hemminger 61357325f3 netdev: convert bulk of drivers to netdev_tx_t
In a couple of cases collapse some extra code like:
   int retval = NETDEV_TX_OK;
   ...
   return retval;
into
   return NETDEV_TX_OK;

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-01 01:14:07 -07:00
Stephen Hemminger 0c3f450b8b sky2: version 1.25
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-18 20:26:54 -07:00
Stephen Hemminger 724b694225 sky2: no recycling
Recycling turns out to be a bad idea!  For most use cases, the
packet can not be reused: TCP packets are cloned. Even for the ideal
case of forwarding, it hurts performance because of CPU ping/pong.
On a multi-core system forwarding of 64 byte packets is worse
much worse: recycling = 24% forwarded vs no recycling = 42% forwarded

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-18 20:26:53 -07:00
Stephen Hemminger 6b84dacadb sky2: optimize transmit completion
Don't reference the list element in hardware transmit ring on transmit
completion. The list element is updated by hardware, therefore
it causes a cache miss. Do book keeping in software structure.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-18 20:26:51 -07:00
Stephen Hemminger ee5f68fea2 sky2: dynamic size transmit ring
Allocate and size transmit ring based on parameters. Saves excess
space and allows configuring larger rings for testing.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-18 20:26:48 -07:00
Stephen Hemminger c119731d66 sky2: simplify list element error
The code for list element error (which should only happen on hardware
errors) should be cleaner and safer. Gets rid of unused ring_size
argument, which makes next patch easier.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-18 20:26:47 -07:00
Stephen Hemminger 5dce95e568 sky2: transmit ring 64 bit conservation
This patch saves elements on transmit ring by only updating the upper
64 bit address when it changes. With many workloads skb's are located
in same region, so it saves space.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-18 20:26:43 -07:00
Stephen Hemminger d6e74b6b7e sky2: use upper/lower 32 bits
Use the existing macros to show where DMA address is being broken
apart. This is cosmetic only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-18 20:26:42 -07:00
Stephen Hemminger 49d4b8ba97 sky2: remove restarting workaround flag
The whole restarting flag was introduced by Mike McCormack
and was a temporary duct tape patch around issues with transmits
inflight during restart. The problems it was covering are now
fixed and the code should have been reverted.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-14 16:35:41 -07:00
Stephen Hemminger deeb16dc24 sky2: version 1.24
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-14 15:36:45 -07:00
Stephen Hemminger 0ea065e52e sky2: fix pause negotiation
The sky2 driver combines auto speed negotiation with automatic negotiation
of pause parameters; but the ethtool interface expects them to be
split. This patch allows autonegotiation to be used for speed, but
manually disable flow control.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-14 15:36:41 -07:00
Stephen Hemminger 481cea4a4d sky2: lock less transmit completion
Transmit completion can safely run lockless against transmit start.
In the normal case, completion is done from NAPI and only looks
at elements that are at the tail of the ring.  When doing shutdown
or reset, the transmiter should be completely block by NAPI disable
and blocking of transmit queue. 

Based on earlier work by Mike McCormack.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-14 15:33:19 -07:00
Stephen Hemminger af18d8b899 sky2: cleanup restart operations
This unifies the places that bounce the device (suspend/resume
and restart). And makes the operations have the same semantics
as normal dev_open/dev_stop.

This also avoids setting the multicast addresses twice when
device is brought up.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-14 15:31:25 -07:00
Stephen Hemminger 1972073718 sky2: hold RTNL when doing suspend/shutdown operations
The suspend and shutdown code plays with shared state. Use consistent
locking, for extra protection.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-14 15:30:03 -07:00
Stephen Hemminger 0da6d7b331 sky2: hold spinlock around phy_power_down
Avoid any possible problems with accessing PHY registers on shutdown.
This is a purely theoretical issue and is not related to any of the
outstanding bug reports. Since receiver and transmitter are already
shutdown and phy interrupts for this device are already disabled,
there should already be enough protection. Suggested by Mike McCormack.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-14 15:30:02 -07:00
Mike McCormack 264bb4fab1 sky2: Reset tx train after interrupts disabled.
Reseting the tx chain too soon results in invalid tx queue positions
being delivered in the status queue.  This also makes sure there's no
overlap between the cleanup done by sky2_tx_clean() and
sky2_tx_done().

Signed-off-by: Mike McCormack <mikem@ring3k.org>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-14 15:30:00 -07:00
Mike McCormack a510996bea sky2: Move tx reset functionality to sky2_tx_reset()
This is pure refactoring.

Signed-off-by: Mike McCormack <mikem@ring3k.org>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-14 15:29:57 -07:00
Mike McCormack 9b289c3374 sky2: Avoid rewinding sky2->tx_prod
Keep sky2->tx_prod consistent since int might be examined by
an softirq poll or restart.

Signed-off-by: Mike McCormack <mikem@ring3k.org>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-14 15:29:55 -07:00
David S. Miller aa11d958d1 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	arch/microblaze/include/asm/socket.h
2009-08-12 17:44:53 -07:00
Mike McCormack f6caa14aa0 sky2: Avoid transmits during sky2_down()
This patch supersedes my previous patch "sky2: Avoid transmitting
during sky2_restart".

I have reworked the patch to avoid crashes during both sky2_restart()
and sky2_set_ringparam().

Without this patch, the sky2 driver can be crashed by doing:

# pktgen eth1 &    (transmit many packets on eth1)
# ethtool -G eth1 tx 510

I am aware you object to storing extra state, but I can't see a way
around this. Without remembering that we're restarting,
netif_wake_queue() is called in the ISR from sky2_tx_complete(), and
netif_tx_lock() is used in sky2_tx_done().  If anybody can see a way
around this, please let me know.

Signed-off-by: Mike McCormack <mikem@ring3k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-03 19:02:36 -07:00
Mike McCormack c409c34bc4 sky2: remove unnecessary assignment
Signed-off-by: Mike McCormack <mikem@ring3k.org>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-26 19:06:46 -07:00
Mike McCormack a947a39d52 sky2: Avoid races in sky2_down
Reset rx chain before trying to drain it.
Shut interrupts off last, incase there's something to report.

Signed-off-by: Mike McCormack <mikem@ring3k.org>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-21 20:57:56 -07:00
Stephen Hemminger 3d1454dd93 sky2: revert shutdown changes
The commit changes to shutdown path broke startup on some systems.

revert commit c0bad0f2e4

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-16 18:05:37 -07:00