Hi Zohar, Thanks for the quick response. I'm working on your git. I don't think it was broken, more that perhaps it never worked over devices that advertise MEM_WINDOW_TYPE_2A >From a quick grep I see that the only ones that advertise TYPE_2A are mlx4 and only under certain Conditions. I'm currently adding support for MW_TYPE_2A for our qedr driver and that's how I Got the perftest failure. Ran ib_write_bw with all default values Got the error: Couldn't allocate MR Failed to create mr ... Thanks, Michal > -----Original Message----- > From: Zohar Ben Aharon [mailto:zoharb@xxxxxxxxxxxx] > Sent: Wednesday, November 01, 2017 5:47 PM > To: Kalderon, Michal <Michal.Kalderon@xxxxxxxxxx>; Gil Rockah > <gilr@xxxxxxxxxxxx>; lunnys@xxxxxxxxx; Ido Shamay > <idos@xxxxxxxxxxxx> > Cc: linux-rdma@xxxxxxxxxxxxxxx; Elior, Ariel <Ariel.Elior@xxxxxxxxxx>; > leon@xxxxxxxxxx; Amrani, Ram <Ram.Amrani@xxxxxxxxxx> > Subject: RE: Perftest fails when declaring support for MW_TYPE_2A > > Thanks Michal , > > Could you provide the package you were using ? > Case you working on our git , Do you know in which it was broken ? > > Could you also add more information regarding the driver and device you > were using, and the command that you try to execute and caused that clash > ? > > > > Thanks, > > Zohar > > > -----Original Message----- > From: Kalderon, Michal [mailto:Michal.Kalderon@xxxxxxxxxx] > Sent: Wednesday, November 1, 2017 5:36 PM > To: Zohar Ben Aharon <zoharb@xxxxxxxxxxxx>; Gil Rockah > <gilr@xxxxxxxxxxxx>; lunnys@xxxxxxxxx; Ido Shamay > <idos@xxxxxxxxxxxx> > Cc: linux-rdma@xxxxxxxxxxxxxxx; Elior, Ariel <Ariel.Elior@xxxxxxxxxx>; > leon@xxxxxxxxxx; Amrani, Ram <Ram.Amrani@xxxxxxxxxx> > Subject: Perftest fails when declaring support for MW_TYPE_2A > > Hi Mellanox/ Accelio, > > There is a very old commit in perftest 96050b8b that assumes bit 23 in device > cap flags means there is driver support for contiguous buffer allocation of > user data > > There is a clash with the following device capability defined in > libibverbs/verbs.h: > #define IBV_DEVICE_MEM_WINDOW_TYPE_2A = 1 << 23 > > Once driver advertises memory window type 2a capability, the perftest > application fails. > > I found that IB_DEVICE_MR_ALLOCATE is defined as bit 23 for freebsd git hub > and accelio github And then I saw there are a lot of clashes between ib_verbs > + upstream kernel > > Clash between the two needs to be resolved. > Perftest wise: Perhaps an additional parameter to perftest ? > > Please advise, > Thanks, > Michal -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
