Re: [trivial PATCH] treewide: Add __GFP_NOWARN to k.alloc calls with v.alloc fallbacks

2013-07-26 Thread Joe Perches
On Wed, 2013-06-19 at 12:15 -0700, Joe Perches wrote: > Don't emit OOM warnings when k.alloc calls fail when > there there is a v.alloc immediately afterwards. > > Converted a kmalloc/vmalloc with memset to kzalloc/vzalloc. Hey Jiri. What's your schedule for accepting or rejecting these sorts of

Re: Failover support in IB?

2013-07-26 Thread Hal Rosenstock
On 7/26/2013 12:58 PM, Liu Ginhann wrote: > Does anyone know if IB support failover? For example, OpenSM can > automatically reroute when a fault is detected in the > "active" path. Yes. > If it does, is this support apply to multicast too? Yes both unicast and multicast is rerouted. -- Ha

Re: [PATCH for-3.11 7/7] IB/iser: Introduce fast memory registration model (FRWR)

2013-07-26 Thread Vu Pham
Hello Or/Sagi, Just a minor /** + * iser_create_frwr_pool - Creates pool of fast_reg descriptors + * for fast registration work requests. + * returns 0 on success, or errno code on failure + */ +int iser_create_frwr_pool(struct iser_conn *ib_conn, unsigned cmds_max) +{ + struct iser_devic

Failover support in IB?

2013-07-26 Thread Liu Ginhann
Does anyone know if IB support failover? For example, OpenSM can automatically reroute when a fault is detected in the "active" path. If it does, is this support apply to multicast too? Hank Liu 503 526-8144 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the b

Re: Dual star topology

2013-07-26 Thread Gandalf Corvotempesta
2013/7/26 Hal Rosenstock : > Note that in terms of IPoIB bonding, I think it's an active/standby > rather than active/active model. Why? Can't I create an active/active bonded interface ? -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...

Re: Dual star topology

2013-07-26 Thread Hal Rosenstock
On 7/26/2013 9:51 AM, Gandalf Corvotempesta wrote: > Ok, so, IPoIB across bonded ports on each host. > Multiple links between switches managed automatically by SM. > Will these multiple links be used in parallel by aggregating bandwidth > or just in case of failover ? How paths are routed is an in

Re: [PATCH V3 0/4] Add IPv6 support for iWARP

2013-07-26 Thread Steve Wise
On 7/4/2013 5:40 AM, Vipul Pandya wrote: Hi All, This patch series adds IPv6 support for iWARP. It enables Chelsio's T4 and T5 adapters to transmitt RDMA traffic over IPv6 address. It adds new apis and cpl messages in cxgb4 to support IPv6 operations and uses them in RDMA/cxgb4. The patch serie

Re: Dual star topology

2013-07-26 Thread Gandalf Corvotempesta
2013/7/26 Hal Rosenstock : > The SM reroutes based on links coming and going so if there are multiple > links between switches, this addresses the internal link failover scenario. Ok, so, IPoIB across bonded ports on each host. Multiple links between switches managed automatically by SM. Will thes

Re: Dual star topology

2013-07-26 Thread Hal Rosenstock
On 7/26/2013 8:20 AM, Gandalf Corvotempesta wrote: > 2013/7/26 Hal Rosenstock : >> There is support for IPoIB bonding. > > I'm talking about switch interconnection. How can I create bonding on > switches? The SM reroutes based on links coming and going so if there are multiple links between swit

Re: Dual star topology

2013-07-26 Thread Gandalf Corvotempesta
2013/7/26 Hal Rosenstock : > There is support for IPoIB bonding. I'm talking about switch interconnection. How can I create bonding on switches? Any recent benchmark about IPoIB ? -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.ke

Re: [PATCH V8 libibverbs 1/7] Infrastructure to support verbs extensions

2013-07-26 Thread Yishai Hadas
On 7/25/2013 8:14 PM, Jason Gunthorpe wrote: On Thu, Jul 25, 2013 at 11:38:02AM +0300, Yishai Hadas wrote: +#ifndef container_of +/** + * container_of - cast a member of a structure out to the containing structure + * @ptr:the pointer to the member. + * @type: the type of the c

Re: [PATCH] libibumad: fix status type

2013-07-26 Thread Hal Rosenstock
On 7/25/2013 6:50 PM, Ira Weiny wrote: > > Signed-off-by: Ira Weiny Thanks. Applied. -- Hal -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

Re: Dual star topology

2013-07-26 Thread Hal Rosenstock
On 7/26/2013 3:22 AM, Gandalf Corvotempesta wrote: > 2013/7/25 Hefty, Sean : >> Currently, rsockets cannot fail over between local HCA ports. This is an >> implementation restriction resulting from no automatic path migration >> support. > > So, currently there is not way to have a fully redund

Re: [PATCH for-3.11 7/7] IB/iser: Introduce fast memory registration model (FRWR)

2013-07-26 Thread Bart Van Assche
On 07/24/13 18:28, Or Gerlitz wrote: On 23/07/2013 17:47, Bart Van Assche wrote: Still regarding page sizes: shouldn't ib_alloc_fast_reg_page_list() and ib_alloc_fast_reg_mr() multiply the SG list length by PAGE_SIZE / SIZE_4K to compensate for page size differences on architectures where virtua

Re: [patch] RDMA/cxgb3: stack info leak in iwch_craete_cq()

2013-07-26 Thread Dan Carpenter
On Thu, Jul 25, 2013 at 01:43:28PM -0500, Steve Wise wrote: > On 7/25/2013 12:04 PM, Dan Carpenter wrote: > >The "uresp.reserved" field isn't initialized. It's at the end, of the > >struct here so we don't need to copy it to the user. > > > >Signed-off-by: Dan Carpenter > > > >diff --git a/driver

Re: Dual star topology

2013-07-26 Thread Gandalf Corvotempesta
2013/7/25 Hefty, Sean : > Currently, rsockets cannot fail over between local HCA ports. This is an > implementation restriction resulting from no automatic path migration support. So, currently there is not way to have a fully redundant IB network with dual-port HCA ? In case of IPoIB, how can