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Date: Tue, 24 Jul 2018 15:52:18 -0500
From: Steve Wise <swise@...ngridcomputing.com>
To: Max Gurtovoy <maxg@...lanox.com>,
'Sagi Grimberg' <sagi@...mberg.me>,
'Leon Romanovsky' <leon@...nel.org>
Cc: 'Doug Ledford' <dledford@...hat.com>,
'Jason Gunthorpe' <jgg@...lanox.com>,
'RDMA mailing list' <linux-rdma@...r.kernel.org>,
'Saeed Mahameed' <saeedm@...lanox.com>,
'linux-netdev' <netdev@...r.kernel.org>
Subject: Re: [PATCH mlx5-next] RDMA/mlx5: Don't use cached IRQ affinity mask
On 7/24/2018 10:24 AM, Steve Wise wrote:
>
> On 7/19/2018 8:25 PM, Max Gurtovoy wrote:
>>>>> [ 2032.194376] nvme nvme0: failed to connect queue: 9 ret=-18
>>>> queue 9 is not mapped (overlap).
>>>> please try the bellow:
>>>>
>>> This seems to work. Here are three mapping cases: each vector on its
>>> own cpu, each vector on 1 cpu within the local numa node, and each
>>> vector having all cpus in its numa node. The 2nd mapping looks kinda
>>> funny, but I think it achieved what you wanted? And all the cases
>>> resulted in successful connections.
>>>
>> Thanks for testing this.
>> I slightly improved the setting of the left CPUs and actually used
>> Sagi's initial proposal.
>>
>> Sagi,
>> please review the attached patch and let me know if I should add your
>> signature on it.
>> I'll run some perf test early next week on it (meanwhile I run
>> login/logout with different num_queues successfully and irq settings).
>>
>> Steve,
>> It will be great if you can apply the attached in your system and send
>> your findings.
> Sorry, I got side tracked. I'll try and test this today and report back.
>
> Steve.
### each vector gets a unique cpu, starting with node-local:
[ 754.976577] iw_cxgb4: comp_vector 0, irq 203 mask 0x100
[ 754.982378] iw_cxgb4: comp_vector 1, irq 204 mask 0x200
[ 754.988167] iw_cxgb4: comp_vector 2, irq 205 mask 0x400
[ 754.993935] iw_cxgb4: comp_vector 3, irq 206 mask 0x800
[ 754.999686] iw_cxgb4: comp_vector 4, irq 207 mask 0x1000
[ 755.005509] iw_cxgb4: comp_vector 5, irq 208 mask 0x2000
[ 755.011318] iw_cxgb4: comp_vector 6, irq 209 mask 0x4000
[ 755.017124] iw_cxgb4: comp_vector 7, irq 210 mask 0x8000
[ 755.022915] iw_cxgb4: comp_vector 8, irq 211 mask 0x1
[ 755.028437] iw_cxgb4: comp_vector 9, irq 212 mask 0x2
[ 755.033948] iw_cxgb4: comp_vector 10, irq 213 mask 0x4
[ 755.039543] iw_cxgb4: comp_vector 11, irq 214 mask 0x8
[ 755.045135] iw_cxgb4: comp_vector 12, irq 215 mask 0x10
[ 755.050801] iw_cxgb4: comp_vector 13, irq 216 mask 0x20
[ 755.056464] iw_cxgb4: comp_vector 14, irq 217 mask 0x40
[ 755.062117] iw_cxgb4: comp_vector 15, irq 218 mask 0x80
[ 755.067767] blk_mq_rdma_map_queues: set->mq_map[0] queue 8 vector 8
[ 755.067767] blk_mq_rdma_map_queues: set->mq_map[1] queue 9 vector 9
[ 755.067768] blk_mq_rdma_map_queues: set->mq_map[2] queue 10 vector 10
[ 755.067769] blk_mq_rdma_map_queues: set->mq_map[3] queue 11 vector 11
[ 755.067769] blk_mq_rdma_map_queues: set->mq_map[4] queue 12 vector 12
[ 755.067770] blk_mq_rdma_map_queues: set->mq_map[5] queue 13 vector 13
[ 755.067771] blk_mq_rdma_map_queues: set->mq_map[6] queue 14 vector 14
[ 755.067772] blk_mq_rdma_map_queues: set->mq_map[7] queue 15 vector 15
[ 755.067772] blk_mq_rdma_map_queues: set->mq_map[8] queue 0 vector 0
[ 755.067773] blk_mq_rdma_map_queues: set->mq_map[9] queue 1 vector 1
[ 755.067774] blk_mq_rdma_map_queues: set->mq_map[10] queue 2 vector 2
[ 755.067774] blk_mq_rdma_map_queues: set->mq_map[11] queue 3 vector 3
[ 755.067775] blk_mq_rdma_map_queues: set->mq_map[12] queue 4 vector 4
[ 755.067775] blk_mq_rdma_map_queues: set->mq_map[13] queue 5 vector 5
[ 755.067776] blk_mq_rdma_map_queues: set->mq_map[14] queue 6 vector 6
[ 755.067777] blk_mq_rdma_map_queues: set->mq_map[15] queue 7 vector 7
### each vector gets one cpu within the local node:
[ 777.590913] iw_cxgb4: comp_vector 0, irq 203 mask 0x400
[ 777.596588] iw_cxgb4: comp_vector 1, irq 204 mask 0x800
[ 777.602249] iw_cxgb4: comp_vector 2, irq 205 mask 0x1000
[ 777.607984] iw_cxgb4: comp_vector 3, irq 206 mask 0x2000
[ 777.613708] iw_cxgb4: comp_vector 4, irq 207 mask 0x4000
[ 777.619431] iw_cxgb4: comp_vector 5, irq 208 mask 0x8000
[ 777.625142] iw_cxgb4: comp_vector 6, irq 209 mask 0x100
[ 777.630762] iw_cxgb4: comp_vector 7, irq 210 mask 0x200
[ 777.636373] iw_cxgb4: comp_vector 8, irq 211 mask 0x400
[ 777.641982] iw_cxgb4: comp_vector 9, irq 212 mask 0x800
[ 777.647583] iw_cxgb4: comp_vector 10, irq 213 mask 0x1000
[ 777.653353] iw_cxgb4: comp_vector 11, irq 214 mask 0x2000
[ 777.659119] iw_cxgb4: comp_vector 12, irq 215 mask 0x4000
[ 777.664877] iw_cxgb4: comp_vector 13, irq 216 mask 0x8000
[ 777.670628] iw_cxgb4: comp_vector 14, irq 217 mask 0x100
[ 777.676289] iw_cxgb4: comp_vector 15, irq 218 mask 0x200
[ 777.681946] blk_mq_rdma_map_queues: set->mq_map[0] queue 8 vector 8
[ 777.681947] blk_mq_rdma_map_queues: set->mq_map[1] queue 9 vector 9
[ 777.681947] blk_mq_rdma_map_queues: set->mq_map[2] queue 10 vector 10
[ 777.681948] blk_mq_rdma_map_queues: set->mq_map[3] queue 11 vector 11
[ 777.681948] blk_mq_rdma_map_queues: set->mq_map[4] queue 12 vector 12
[ 777.681949] blk_mq_rdma_map_queues: set->mq_map[5] queue 13 vector 13
[ 777.681950] blk_mq_rdma_map_queues: set->mq_map[6] queue 14 vector 14
[ 777.681950] blk_mq_rdma_map_queues: set->mq_map[7] queue 15 vector 15
[ 777.681951] blk_mq_rdma_map_queues: set->mq_map[8] queue 6 vector 6
[ 777.681952] blk_mq_rdma_map_queues: set->mq_map[9] queue 7 vector 7
[ 777.681952] blk_mq_rdma_map_queues: set->mq_map[10] queue 0 vector 0
[ 777.681953] blk_mq_rdma_map_queues: set->mq_map[11] queue 1 vector 1
[ 777.681953] blk_mq_rdma_map_queues: set->mq_map[12] queue 2 vector 2
[ 777.681954] blk_mq_rdma_map_queues: set->mq_map[13] queue 3 vector 3
[ 777.681955] blk_mq_rdma_map_queues: set->mq_map[14] queue 4 vector 4
[ 777.681955] blk_mq_rdma_map_queues: set->mq_map[15] queue 5 vector 5
### each vector gets all cpus within the local node:
[ 838.251643] iw_cxgb4: comp_vector 0, irq 203 mask 0xff00
[ 838.257346] iw_cxgb4: comp_vector 1, irq 204 mask 0xff00
[ 838.263038] iw_cxgb4: comp_vector 2, irq 205 mask 0xff00
[ 838.268710] iw_cxgb4: comp_vector 3, irq 206 mask 0xff00
[ 838.274351] iw_cxgb4: comp_vector 4, irq 207 mask 0xff00
[ 838.279985] iw_cxgb4: comp_vector 5, irq 208 mask 0xff00
[ 838.285610] iw_cxgb4: comp_vector 6, irq 209 mask 0xff00
[ 838.291234] iw_cxgb4: comp_vector 7, irq 210 mask 0xff00
[ 838.296865] iw_cxgb4: comp_vector 8, irq 211 mask 0xff00
[ 838.302484] iw_cxgb4: comp_vector 9, irq 212 mask 0xff00
[ 838.308109] iw_cxgb4: comp_vector 10, irq 213 mask 0xff00
[ 838.313827] iw_cxgb4: comp_vector 11, irq 214 mask 0xff00
[ 838.319539] iw_cxgb4: comp_vector 12, irq 215 mask 0xff00
[ 838.325250] iw_cxgb4: comp_vector 13, irq 216 mask 0xff00
[ 838.330963] iw_cxgb4: comp_vector 14, irq 217 mask 0xff00
[ 838.336674] iw_cxgb4: comp_vector 15, irq 218 mask 0xff00
[ 838.342385] blk_mq_rdma_map_queues: set->mq_map[0] queue 8 vector 8
[ 838.342385] blk_mq_rdma_map_queues: set->mq_map[1] queue 9 vector 9
[ 838.342386] blk_mq_rdma_map_queues: set->mq_map[2] queue 10 vector 10
[ 838.342387] blk_mq_rdma_map_queues: set->mq_map[3] queue 11 vector 11
[ 838.342387] blk_mq_rdma_map_queues: set->mq_map[4] queue 12 vector 12
[ 838.342388] blk_mq_rdma_map_queues: set->mq_map[5] queue 13 vector 13
[ 838.342389] blk_mq_rdma_map_queues: set->mq_map[6] queue 14 vector 14
[ 838.342390] blk_mq_rdma_map_queues: set->mq_map[7] queue 15 vector 15
[ 838.342391] blk_mq_rdma_map_queues: set->mq_map[8] queue 0 vector 0
[ 838.342391] blk_mq_rdma_map_queues: set->mq_map[9] queue 1 vector 1
[ 838.342392] blk_mq_rdma_map_queues: set->mq_map[10] queue 2 vector 2
[ 838.342392] blk_mq_rdma_map_queues: set->mq_map[11] queue 3 vector 3
[ 838.342393] blk_mq_rdma_map_queues: set->mq_map[12] queue 4 vector 4
[ 838.342394] blk_mq_rdma_map_queues: set->mq_map[13] queue 5 vector 5
[ 838.342394] blk_mq_rdma_map_queues: set->mq_map[14] queue 6 vector 6
[ 838.342395] blk_mq_rdma_map_queues: set->mq_map[15] queue 7 vector 7
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