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Add a create_flags member to struct ib_qp_init_attr that will allow a
kernel verbs consumer to create a pass special flags when creating a QP.
Add a flag value for telling low-level drivers that a QP will be used
for IPoIB UD LSO. The create_flags member will also be useful for XRC
and ehca low-latency QP support.
Since no create_flags handling is implemented yet, add code to all
low-level drivers to return -EINVAL if create_flags is non-zero.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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In list iteration code, you normally wouldn't be calling
"container_of()" directly anyway, you'd be invoking "list_entry()".
But you don't even need that here, "list_for_each_entry()" is fine.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Acked-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The session_id members of struct nes_cm_listener and struct
nes_cm_node are write-only, so remove them. This allows the
session_id member of struct nes_cm_core to be removed as well, since
it is only used to write those other session_id values.
This removes the use of current->tgid (which will be deprecated)
pointed out by Pavel Emelyanov <xemul@openvz.org>.
Acked-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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__FUNCTION__ is gcc-specific, use __func__ instead.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Avoid namespace pollution and allow the compiler to optimize better.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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On some platforms, eg sparc64, dma_addr_t is not the same size as a
pointer, so printing dma_addr_t values by casting to void * and using
a %p format generates warnings. Fix this by casting to unsigned long
and using %lx instead. This fixes the warnings:
drivers/infiniband/hw/nes/nes_verbs.c: In function 'nes_setup_virt_qp':
drivers/infiniband/hw/nes/nes_verbs.c:1047: warning: cast to pointer from integer of different size
drivers/infiniband/hw/nes/nes_verbs.c:1078: warning: cast to pointer from integer of different size
drivers/infiniband/hw/nes/nes_verbs.c:1078: warning: cast to pointer from integer of different size
drivers/infiniband/hw/nes/nes_verbs.c: In function 'nes_reg_user_mr':
drivers/infiniband/hw/nes/nes_verbs.c:2657: warning: cast to pointer from integer of different size
Reported by Andrew Morton <akpm@linux-foundation.org>.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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nes_netdev_exit() has no callers, so delete it.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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nes_unregister_ofa_device() dereferences the nesibdev pointer before
testing if it's NULL. Also, the test is doubly redundant because the
only caller of nes_unregister_ofa_device() is nes_destroy_ofa_device(),
which already tests if nesibdev is NULL. Remove the unnecessary test.
This was spotted by the Coverity checker (CID 2190).
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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None of the cqp_reqs_XXX counters were ever used anywhere, and neither
was the nics_per_function variable.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Fix a couple of htonl() that should really be ntohl().
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Fix the calculation of the MSS for RDMA connections: we need to
allow space in frames for a VLAN tag too.
Signed-off-by: Chien Tung <ctung@neteffect.com>
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Interrupt moderation low threshold value was incorrectly triggering,
indicating that the threshold should be lowered.
The impact was the timer was likely to become 40usecs and get stuck
there. The biggest side effect was too many interrupts and nonoptimal
performance.
Signed-off-by: John Lacombe <jlacombe@neteffect.com>
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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With commit ef19454b ("[LIB] crc32c: Keep intermediate crc state in
cpu order"), the behavior of crc32c changes on big-endian platforms.
Our algorithm expects the previous behavior; otherwise we have RDMA
connection establishment failure on big-endian platforms like powerpc.
Apply cpu_to_le32() to value returned by crc32c() to get the previous
behavior.
Signed-off-by: Faisal Latif <flatif@neteffect.com>
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Fix use-after-free spotted by Coverity checker flagged by Adrian Bunk.
Signed-off-by: Faisal Latif <flatif@neteffect.com>
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Just delete the debugging statement so we don't use cqp_request after
freeing it. Adrian Bunk flagged this use-after-free issue spotted by
the Coverity checker.
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Fix a check-after-use spotted by the Coverity checker.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Fix a memory leak spotted by the Coverity checker.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Fix an off-by-one spotted by the Coverity checker.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Adrian Bunk pointed out that a Coverity scan found some apparently
dead code in nes_verbs.c that really shouldn't have been dead.
The function nes_create_cq() was missing the assignment
err = 1;
just prior to an iteration that conditionally set err = 0 if a PBL was
found for a given virtual CQ. I also noticed we should have been
returning -EFAULT on a couple related error paths.
Signed-off-by: Chien Tung <ctung@neteffect.com>
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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In nes_create_qp(), the test
if (nesqp->mmap_sq_db_index > NES_MAX_USER_WQ_REGIONS) {
is used to error out if the db_index is too large; however, if the
test doesn't trigger, then the index is used as
nes_ucontext->mmap_nesqp[nesqp->mmap_sq_db_index] = nesqp;
and mmap_nesqp is declared as
struct nes_qp *mmap_nesqp[NES_MAX_USER_WQ_REGIONS];
which leads to an array overrun if the index is exactly equal to
NES_MAX_USER_WQ_REGIONS. Fix this by bailing out if the index is
greater than or equal to NES_MAX_USER_WQ_REGIONS.
This was spotted by the Coverity checker (CID 2162).
Acked-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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We need to account for the VLAN header size in nes_netdev_change_mtu()
and nes_netdev_init(). Also, add spin lock/unlock during VLAN RX
registration so only one process can assign VLAN group for a given
interface at a time.
Signed-off-by: Chien Tung <ctung@neteffect.com>
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Only mask out MAC interrupt if necessary and re-enable on ifup. There
could be multiple netdevs going through the same MAC. MAC interrupts
should not be masked off until the last netdev is downed.
Signed-off-by: Chien Tung <ctung@neteffect.com>
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Add a standard NIC and RDMA/iWARP driver for NetEffect 1/10Gb ethernet adapters.
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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