Export tegra_powergate_is_powered(). This function will be used by the Tegra30
code to bringup secondary CPU cores.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Prepare the powergating code for other Tegra variants which have a different
number of powerdomains.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Prepare the Tegra secondary CPU core bringup code for other Tegra variants.
The reset handler is also generalized to allow for future introduction of
powersaving modes which turn off the CPU cores.
Based on work by:
Scott Williams <scwilliams@nvidia.com>
Chris Johnson <cwj@nvidia.com>
Colin Cross <ccross@android.com>
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Introduce some functions to write to the flowcontroller registers. The
flowcontroller controls CPU sleepstates and wakeup.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Secondary core bringup relies on the Tegra chipid to distinguish between
Tegra variants. Therefore this data needs to be available early on.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
The powergating and reset handling code needs to differentiate between Tegra
variants. Therefore we export the chipid here.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
The chipid register contains information about the Tegra variant and revision.
We want differentiate between Tegra variants for powergating and secondary
core bringup. This patch cleans up the reading and decoding of this register.
In subsequent patches the variant will exported as a global variable.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
The ARM IP revisions in Tegra are:
Tegra20: CPU r1p1, PL310 r2p0
Tegra30: CPU A01=r2p7/>=A02=r2p9, NEON r2p3-50, PL310 r3p1-50
Based on work by Olof Johansson, although the actual list of errata is
somewhat different here, since I added a bunch more and removed one PL310
erratum that doesn't seem applicable.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Cc: stable@vger.kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
When this inconsistency occurs, the system will typically operate without
issue, it's just that EMC scaling won't optimally. Convert the BUG_ON to
a WARN_ONCE in order to allow the kernel to boot, but still complain.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
No need to compile cpuidle.c and sleep.S if cpuidle isn't configured in the
kernel.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Cardhu uses Tegra's SD ports as follows:
SDMMC1: User SD slot, with GPIOs for power, CD, and WP.
SDMMC2: Not used
SDMMC3: WiFi (currently disabled pending future investigation)
SDMMC4: Internal eMMC
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Commit 7da5a66 "irq_domain: Remove 'new' irq_domain in favour of the
ppc one" changed the set of available irq domain APIs. Update the Tegra
GPIO driver to account for those changes, to solve a build break.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
task->thread.usersp is unusable immediately after a binary is exec()'d
until it undergoes a context switch cycle. The start_thread() function
called during execve() saves the stack pointer into pt_regs and into
old_rsp, but fails to record it into task->thread.usersp.
Because of this, KSTK_ESP(task) returns an incorrect value for a
64-bit program until the task is switched out and back in since
switch_to swaps %rsp values in and out into task->thread.usersp.
Signed-off-by: Siddhesh Poyarekar <siddhesh.poyarekar@gmail.com>
Link: http://lkml.kernel.org/r/1330273075-2949-1-git-send-email-siddhesh.poyarekar@gmail.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
When a Tclunk or Tremove request is flushed, the fid is not freed on the
server.
p9_client_clunk() should retry once on interrupt, then if interrupted
again, leak the fid for the duration of the connection.
p9_client_remove() should call p9_client_clunk() on interrupt
instead of unconditionally destroying the fid.
Signed-off-by: Jim Garlick <garlick@llnl.gov>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
1) ICMP sockets leave err uninitialized but we try to return it for the
unsupported MSG_OOB case, reported by Dave Jones.
2) Add new Zaurus device ID entries, from Dave Jones.
3) Pointer calculation in hso driver memset is wrong, from Dan
Carpenter.
4) ks8851_probe() checks unsigned value as negative, fix also from Dan
Carpenter.
5) Fix crashes in atl1c driver due to TX queue handling, from Eric
Dumazet. I anticipate some TX side locking fixes coming in the near
future for this driver as well.
6) The inline directive fix in Bluetooth which was breaking the build
only with very new versions of GCC, from Johan Hedberg.
7) Fix crashes in the ATP CLIP code due to ARP cleanups this merge
window, reported by Meelis Roos and fixed by Eric Dumazet.
8) JME driver doesn't flush RX FIFO correctly, from Guo-Fu Tseng.
9) Some ip6_route_output() callers test the return value for NULL, but
this never happens as the convention is to return a dst entry with
dst->error set. Fixes from RonQing Li.
10) Logitech Harmony 900 should be handled by zaurus driver not
cdc_ether, update white lists and black lists accordingly. From
Scott Talbert.
11) Receiving from certain kinds of devices there won't be a MAC header,
so there is no MAC header to fixup in the IPSEC code, and if we try
to do it we'll crash. Fix from Eric Dumazet.
12) Port type array indexing off-by-one in mlx4 driver, fix from Yevgeny
Petrilin.
13) Fix regression in link-down handling in davinci_emac which causes
all RX descriptors to be freed up and therefore RX to wedge
completely, from Christian Riesch.
14) It took two attempts, but ctnetlink soft lockups seem to be
cured now, from Pablo Neira Ayuso.
15) Endianness bug fix in ENIC driver, from Santosh Nayak.
16) The long ago conversion of the PPP fragmentation code over to
abstracted SKB list handling wasn't perfect, once we get an
out of sequence SKB we don't flush the rest of them like we
should. From Ben McKeegan.
17) Fix regression of ->ip_summed initialization in sfc driver.
From Ben Hutchings.
18) Bluetooth timeout mistakenly using msecs instead of jiffies,
from Andrzej Kaczmarek.
19) Using _sync variant of work cancellation results in deadlocks,
use the non _sync variants instead. From Andre Guedes.
20) Bluetooth rfcomm code had reference counting problems leading
to crashes, fix from Octavian Purdila.
21) The conversion of netem over to classful qdisc handling added
two bugs to netem_dequeue(), fixes from Eric Dumazet.
22) Missing pci_iounmap() in ATM Solos driver. Fix from Julia Lawall.
23) b44_pci_exit() should not have __exit tag since it's invoked from
non-__exit code. From Nikola Pajkovsky.
24) The conversion of the neighbour hash tables over to RCU added a
race, fixed here by adding the necessary reread of tbl->nht, fix
from Michel Machado.
25) When we added VF (virtual function) attributes for network device
dumps, this potentially bloats up the size of the dump of one
network device such that the dump size is too large for the buffer
allocated by properly written netlink applications.
In particular, if you add 255 VFs to a network device, parts of
GLIBC stop working.
To fix this, we add an attribute that is used to turn on these
extended portions of the network device dump. Sophisticaed
applications like 'ip' that want to see this stuff will be changed
to set the attribute, whereas things like GLIBC that don't care
about VFs simply will not, and therefore won't be busted by the
mere presence of VFs on a network device.
Thanks to the tireless work of Greg Rose on this fix.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (53 commits)
sfc: Fix assignment of ip_summed for pre-allocated skbs
ppp: fix 'ppp_mp_reconstruct bad seq' errors
enic: Fix endianness bug.
gre: fix spelling in comments
netfilter: ctnetlink: fix soft lockup when netlink adds new entries (v2)
Revert "netfilter: ctnetlink: fix soft lockup when netlink adds new entries"
davinci_emac: Do not free all rx dma descriptors during init
mlx4_core: Fixing array indexes when setting port types
phy: IC+101G and PHY_HAS_INTERRUPT flag
netdev/phy/icplus: Correct broken phy_init code
ipsec: be careful of non existing mac headers
Move Logitech Harmony 900 from cdc_ether to zaurus
hso: memsetting wrong data in hso_get_count()
netfilter: ip6_route_output() never returns NULL.
ethernet/broadcom: ip6_route_output() never returns NULL.
ipv6: ip6_route_output() never returns NULL.
jme: Fix FIFO flush issue
atm: clip: remove clip_tbl
ipv4: ping: Fix recvmsg MSG_OOB error handling.
rtnetlink: Fix problem with buffer allocation
...
When a signal is received while sending a Tflush, the client,
which has recursed into p9_client_rpc() while sending another request,
should wait for Rflush as long as the transport is still up.
Signed-off-by: Jim Garlick <garlick@llnl.gov>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
A driver xmit function is not allowed to change skb without special
care.
mlx4_en_xmit() should not call skb_reset_mac_header() and instead should
use skb->data to access ethernet header.
This removes a dumb test : if (ethh && ethh->h_dest)
Also remove this slow mlx4_en_mac_to_u64() call, we can use
get_unaligned() to get faster code.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds CTA_MARK_MASK which, together with CTA_MARK, allows
you to selectively send conntrack entries to user-space by
returning those that match mark & mask.
With this, we can save cycles in the building and the parsing of
the entries that may be later on filtered out in user-space by using
the ctmark & mask.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch allows you to pass a data pointer that can be
accessed from the dump callback.
Netfilter is going to use this patch to provide filtered dumps
to user-space. This is specifically interesting in ctnetlink that
may handle lots of conntrack entries. We can save precious
cycles by skipping the conversion to TLV format of conntrack
entries that are not interesting for user-space.
More specifically, ctnetlink will include one operation to allow
to filter the dumping of conntrack entries by ctmark values.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Davem considers that the argument list of this interface is getting
out of control. This patch tries to address this issue following
his proposal:
struct netlink_dump_control c = { .dump = dump, .done = done, ... };
netlink_dump_start(..., &c);
Suggested by David S. Miller.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The autofs compat handling fix caused a compile failure when
CONFIG_COMPAT isn't defined.
Instead of adding random #ifdef'fery in autofs, let's just make the
compat helpers earlier to use: without CONFIG_COMPAT, is_compat_task()
just hardcodes to zero.
We could probably do something similar for a number of other cases where
we have #ifdef's in code, but this is the low-hanging fruit.
Reported-and-tested-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- casting pointers to integer types of different size is being warned on
- an uninitialized variable warning occurred on certain gcc versions
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
ConnectX devices have a limit on the number of mappings that can be
done on an FMR before having to call sync_tpt. The current
mlx4_ib driver reports the limit correctly in max_map_per_fmr in
.query_device(), but mlx4_core doesn't check it when actually
allocating FMRs.
Add a max_fmr_maps field to struct mlx4_caps and enforce this maximum
value on FMR allocations.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
If the opcode of a work request exceeds the range of valid opcodes,
return the pointer to the offending work request.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This patch allows target_submit_tmr() to pass gfp_t for se_cmd->se_tmr_req
allocation, and also set up se_cmd->se_tmr_req->ref_task_tag for passed
tag with TMR_ABORT_TASK.
Also update tcm_fc(fcoe) parameter usgae and add ref_task_tag FIXME
for TMR_ABORT_TASK usage,
Cc: Andy Grover <agrover@redhat.com>
Cc: Kiran Patil <kiran.patil@intel.com>
Cc: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
In order to handle incoming target_submit_tmr() callers using interrupt
context, use system_wq process context for transport_lookup_tmr_lun()
failures to return TMR_LUN_DOES_NOT_EXIST status for fabric TM response.
Cc: Andy Grover <agrover@redhat.com>
Cc: Kiran Patil <kiran.patil@intel.com>
Cc: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This patch makes target_submit_tmr() se_tmr_req allocation occur before
target_get_sess_cmd(), and changes target_submit_tmr() to return a failure
w/ non zero status to the fabric caller upon core_tmr_alloc_req() failure.
Cc: Andy Grover <agrover@redhat.com>
Cc: Kiran Patil <kiran.patil@intel.com>
Cc: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Set up a response with appropriate error status and send it for MADs
that are not supported by a specific class/version.
Reviewed-by: Hal Rosenstock <hal@mellanox.com>
Signed-off-by: Swapna Thete <swapna.thete@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Add defines for MAD error codes so that they can be used when
returning error responses.
Signed-off-by: Swapna Thete <swapna.thete@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Since create_comp_task() creates percpu kthread, it makes sense to use
kthread_create_on_node() to get proper NUMA affinity for kthread
stack.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
The current get portinfo handling filters the LID being sent,
changing zero to 0xffff.
This causes OpenSM to log excessive warning messages.
Reviewed-by: Edward Mascarenhas <edward.mascarenhas@qlogic.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Call irq_set_affinity_hint() to give userspace programs such as
irqbalance the information to be able to distribute qib interrupts
appropriately.
The logic allocates all non-receive interrupts to the first CPU local
to the HCA. Receive interrupts are allocated round robin starting
with the second CPU local to the HCA with potential wrap back to the
second CPU.
This patch also adds a refinement to the name registered for MSI-X
interrupts so that user level scripts can determine the device
associated with the IRQs when there are multiple HCAs with a
potentially different set of local CPUs.
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Don't worry about p2p_type if peer2peer itself is not requested in the
first place.
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
The patch removes unneeded method typedef declaration (icv_update_fn_t
) and the two struct declarations which appear in its prototype
(struct hash_desc and struct scatterlist) in net/xfrm.h.
Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch changes target_submit_tmr() LUN lookup failures to set response
status TMR_LUN_DOES_NOT_EXIST and invoke TFO->queue_tm_rsp(), instead of
sending CHECK_CONDITION status that can cause problems with Linux FCoE
clients.
Tested with tcm_fc ports and explict LUN_RESET lookup failures.
Cc: Andy Grover <agrover@redhat.com>
Cc: Kiran Patil <kiran.patil@intel.com>
Cc: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Make iscsit_alloc_buffs() failure case for page_alloc_failed use correct
__free_page() SGL pointer, and return -ENOMEM for iscsit_allocate_iovecs
failure to push se_cmd->t_mem_sg release into iscsit_release_cmd()
callback during iscsit_add_reject_from_cmd() connection reset.
Also drop cmd->t_mem_sg = NULL assignment from page_alloc_failed
failure case.
Reported-by: Roland Dreier <roland@purestorage.com>
Cc: Andy Grover <agrover@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
The old code did (MSB << 8) & 0xff, which always evaluates to 0. Just use
get_unaligned_be16() so we don't have to worry about whether our open-coded
version is correct or not.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
