There is a time-lag of IFF_RUNNING flag consistency between vlan and
real devices when the real devices are in problem such as link or cable
broken.
This leads to a degradation of Availability such as a delay of failover
in HA systems using vlan since the detection of the problem at real
device is delayed.
We can avoid the linkwatch delay (~1 sec) for devices linked to another
ones, since delay is already done for the realdev.
Based on a previous patch from Mitsuo Hayasaka
Reported-by: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Patrick McHardy <kaber@trash.net>
Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Cc: Tom Herbert <therbert@google.com>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Jesse Gross <jesse@nicira.com>
Tested-by: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change details:
- Found a leak in sk_buff unmapping of PCI dma addresses where boundary
conditions are not properly handled in freeing all Tx buffers. Freeing
of all Tx buffers is done considering sk_buffs data and fragments can
be mapped at the boundary.
Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
sk_buff unmap_array grows greater than 65536 (x2) with Tx ring of 65536.
Reducing TXQ depth and safe(max) acking of Tx events to 32768 (same as Rx).
Add defines for TX and RX queue depths.
Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change details:
- Check the BNAD_RF_MBOX_IRQ_DISABLED flag after acquiring the bna_lock,
since checking the flag and executing bna_mbox_handler needs to be atomic.
If not, it opens up window where flag is reset when it was checked, but got
set while spinning on the lock by the other thread which is actually
holding the lock
Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change details:
- Async mode of Tx/Rx queue initialization in BNAD from a task queue context
runs into non-unique taskq allocation issues. Get rid of Tx/Rx
initialization from task q context
- In the attach function, wait for IOC enable, then do Tx/Rx queue
initialization. Default BNA attributes are used when IOC enable from attach
fails and values are set to:
1 TxQ, 1 RxQ, 1 Unicast MAC, 1 RIT entry
Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change details:
- Add tx_skb counters and NAPI debug counters to ethtool stats.
- Add rlb stats strings to bnad_net_stats_strings{} array. rlb_stats field
was added to struct bfi_enet_stats {} but the corresponding name structure
array for ethtool was not initialized with right strings, even though the
actual name structure array got expanded. This caused a NULL pointer
violation and a crash when doing ehtool -S <if_name>.
- Modify dim timer stop logic to make it dependent on cfg and run flags
- While setting the ring parameter restore the rx, vlan configuration and
set rx mode
- Indentation fix
Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change details:
- Initialize rx_id to 0 for bnad_cleanup_rx
- Return -ENOMEM in case if bna_rx_create fails
- Count the Rx buffer allocation failures in bnad_alloc_n_post_rxbufs()
- Remove unnecessary initialization of using_dac to false in bnad_pci_probe
- Release lock if error while doing bna_num_txq_set in bnad_pci_probe
Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change details:
- Print log messages when running with reduced number of MSI-X vectors
and when defaulting to INTx mode.
- Remove BUG_ONs and header file inclusion that are not needed
- Comments addition/cleanup
- Unused code cleanup
- Add New Line to Print msg in bfa_sm_fault
- Formatting fix
Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change details:
- Add bnad_pci_unmap_skb() API to unmap skb from transmit path and update the
unmap index. Add more checks for illegal skbs in transmit path. Add tx_skb
counters for dropped skbs.
- The unmap_cons index used in bnad_free_txbufs() is incorrectly declared as
u16. It quickly wraps around and accesses null sk_buff ptr. So using u32 to
handle unmap_array.
- Disable and enable interrupts from the same polling context to prevent
reordering in Rx path.
- Add Rx NAPI debug counters.
- Make NAPI budget check more generic.
- Modify dim timer stop logic to make it dependent on cfg and run flags
- Handle reduced MSI-X vectors case in bnad_enable_msix.
- Check for single frame TSO skbs and send them out as non-TSO.
- Put memory barrier after bna_txq_prod_indx_doorbell().
Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change details:
- Remove unnecessary ccb check from bnad_poll_cq
- Add bnad pointer to rx_ctrl structure, so that bnad can be accessed directly
from rx_ctrl in the NAPI poll routines, even if ccb is NULL
- Validate ccb before referencing to it in bnad_msix_rx and bnad_napi_poll_rx
- Fix the order of NAPI init / uninit in Tx / Rx setup / teardown path:
a. Kill bnad tx free tasklet ahead of call to bna_tx_destroy()
b. Call NAPI disable only after call to Rx free_irq(). This makes sure Rx
interrupt does not schedule a poll when NAPI is already disabled
- NAPI poll runs before the h/w has completed configuration. This causes a
crash. Delay enabling NAPI till after bna_rx_enable(). Split NAPI
initialization into 2 steps, bnad_napi_init() & bnad_napi_enable().
Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change details:
- Return error as -EIO if bnad_res_alloc fails
- Release the configuration lock before registering with net_device layer.
Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Naming changes: rename devid, BNAD_MAX_TXS, BNAD_MAX_RXS,
BNAD_MAX_RXPS_PER_RX to device, BNAD_MAX_TX, BNAD_MAX_RX,
BNAD_MAX_RXP_PER_RX respectively and change all the references.
Macro Fix: Add ioc_isr_mod_set check to bfa_nw_ioc_mbox_regisr macro
Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The functionality of xlist and llist is almost same. This patch
replace xlist with llist to avoid code duplication.
Known issues: don't know how to test this, need special hardware?
Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Andy Grover <andy.grover@oracle.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
We should release the dev_hold() on error before returning here.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When we kfree(entry) that causes a use-after-free bug so we have to
use list_for_each_entry_safe() safe here.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
nfs: Do not allow multiple mounts on same mountpoint when using -o noac
NFS: Fix a typo in nfs_flush_multi
NFSv4: renewd needs to be able to handle the NFS4ERR_CB_PATH_DOWN error
NFSv4: The NFSv4.0 client must send RENEW calls if it holds a delegation
NFSv4: nfs4_proc_renew should be declared static
NFSv4: nfs4_proc_async_renew should use a GFP_NOFS allocation
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
Cc: Francois Romieu <romieu@fr.zoreil.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Cc: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Cc: Ron Mercer <ron.mercer@qlogic.com>
Cc: linux-driver@qlogic.com
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Cc: Sony Chacko <sony.chacko@qlogic.com>
Cc: linux-driver@qlogic.com
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Ron Mercer <ron.mercer@qlogic.com>
Cc: linux-driver@qlogic.com
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Sony Chacko <sony.chacko@qlogic.com>
Cc: Rajesh Borundia <rajesh.borundia@qlogic.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Guo-Fu Tseng <cooldavid@cooldavid.org>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Santiago Leon <santil@linux.vnet.ibm.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
According to latest OMAP4430 Data Manual v0.4 dated March 2011:
- Retention voltage shall be set to 0.83V. See tables 2.2, 2.4 and 2.6 in DM.
This allows saving a little more power in retention states.
- OPP100 IVA nominal voltage is 1.188V. See table 2.4 in DM.
This allows saving a little power when CPU wakes up until Smart-Reflex is
not yet resumed.
[nm@ti.com: ported to voltdm_c]
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Patrick Titiano <p-titiano@ti.com>
using 1.35V as a check is not correct, we know that beyond 0x39,
voltages are non linear - hence use the conversion iff uV greater
than that for 0x39. For example, with 709mV as the smps offset,
the max linear is actually 1.41V(0x39vsel)!
Signed-off-by: Nishanth Menon <nm@ti.com>
omap_twl_vsel_to_uv() and omap_twl_uv_to_vsel() functions used to convert
voltages to TWL6030 SMPS commands (a.k.a "vsel") implement incorrect conversion
formula.
It uses legacy OMAP3 formula, but OMAP4 Power IC has different offset and
voltage step:
- Voltage Step is now 12.66mV (instead of 12.5mV)
- Offset is either 607.7mV or 709mV depending on TWL6030 chip revision
(instead of 600mV)
This leads to setting voltages potentially higher than expected, and so
potentially some (limited) power overconsumption.
For reference, see formula and tables in section 8.5.2.3
"Output Voltage Selection (Standard Mode / Extended Mode with or without offset)"
in TWL6030 functional specifications document.
[nm@ti.com: ported to voltdm_c]
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Patrick Titiano <p-titiano@ti.com>
Needed as some of the voltage layer functionality is accessed from the
SMPS regulator driver.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Starting with OMAP5, the following registers are per-channel and not
common to a all VC channels:
- SMPS I2C slave address
- SMPS voltage register address offset
- SMPS cmd/value register address offset
- VC channel configuration register
Move these from the channel-common struct into the per-channel struct
to support OMAP5.
Signed-off-by: Kevin Hilman <khilman@ti.com>
Currently, the nominal voltage is updated in the VC post-scale function
which is common to both scaling methods. However, this has readabiliy
problems as this update is not where it might be expected. Instead, move
the updated into voltdm_scale() upon a successful return of voltdm->scale()
Signed-off-by: Kevin Hilman <khilman@ti.com>
Remove last remaining member (volt_data) from omap_vdd_info into
struct voltagedomain and removal remaining usage and reference to
omap_vdd_info.
Signed-off-by: Kevin Hilman <khilman@ti.com>
Track current nominal voltage as part of struct voltagedomain instead
of omap_vdd_info, which will soon be removed.
Also renames field from curr_volt to nominal_volt.
No functional changes.
Signed-off-by: Kevin Hilman <khilman@ti.com>
Rename voltage scaling related functions to use voltdm_ prefix intead
of omap_voltage_, and cleanup kerneldoc comments in the process.
s/omap_voltage_scale_vdd/voltdm_scale/
s/omap_voltage_reset/voltdm_reset/
Also, in voltdm_reset() s/target_uvdc/target_volt/ to be consistent with
naming throughout the file.
No functional changes.
Signed-off-by: Kevin Hilman <khilman@ti.com>
combine VPCONFIG init voltage setup into common function and use from
both vp_enable and from vp_forceupdate_scale().
NOTE: this patch changes the sequence of when the initVDD bit is
cleared. The bit is now cleared immediately after it was written.
Since only the rising edge of this bit has any affect according to the
TRM, the exact timing of clearing of this bit should not have any
effect.
Signed-off-by: Kevin Hilman <khilman@ti.com>
Reading the VPVOLTAGE field of PRM_VP_*_VOLTAGE registers currently
relies on a u32 -> u8 conversion to mask off the FORCEUPDATEWAIT field
in the upper bits. Make this explicit using the mask symbol
already defined, added as a new field in struct omap_vp_common.
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Function pointer used for actual voltage scaling (e.g. VP force update
or VC bypass) is moved from omap_vdd_info into struct voltagedomain,
resulting in renames s/vdd->volt_scale/voltdm->scale/
No functional changes.
Signed-off-by: Kevin Hilman <khilman@ti.com>
