Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) client-ip=2620:137:e000::3:6;
Message-ID: <b50c8e41-9787-4281-81fa-e2cfe8fe3146@linux.ibm.com>
Date:   Fri, 1 Dec 2023 09:33:43 +0100
User-Agent: Mozilla Thunderbird
Subject: Re: [PATCH net-next v3 0/7] net/smc: implement SMCv2.1 virtual ISM
 device support
Content-Language: en-GB
To:     Wen Gu <guwen@linux.alibaba.com>, wintera@linux.ibm.com,
        hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com,
        davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
        pabeni@redhat.com, kgraul@linux.ibm.com, jaka@linux.ibm.com
Cc:     borntraeger@linux.ibm.com, svens@linux.ibm.com,
        alibuda@linux.alibaba.com, tonylu@linux.alibaba.com,
        raspl@linux.ibm.com, schnelle@linux.ibm.com,
        linux-s390@vger.kernel.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org
References: <1701343695-122657-1-git-send-email-guwen@linux.alibaba.com>
From:   Wenjia Zhang <wenjia@linux.ibm.com>
In-Reply-To: <1701343695-122657-1-git-send-email-guwen@linux.alibaba.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
MIME-Version: 1.0
Precedence: bulk


On 30.11.23 12:28, Wen Gu wrote:
> The fourth edition of SMCv2 adds the SMC version 2.1 feature updates for
> SMC-Dv2 with virtual ISM. Virtual ISM are created and supported mainly by
> OS or hypervisor software, comparable to IBM ISM which is based on platform
> firmware or hardware.
> 
> With the introduction of virtual ISM, SMCv2.1 makes some updates:
> 
> - Introduce feature bitmask to indicate supplemental features.
> - Reserve a range of CHIDs for virtual ISM.
> - Support extended GIDs (128 bits) in CLC handshake.
> 
> So this patch set aims to implement these updates in Linux kernel. And it
> acts as the first part of SMC-D virtual ISM extension & loopback-ism [1].
> 
> [1] https://lore.kernel.org/netdev/1695568613-125057-1-git-send-email-guwen@linux.alibaba.com/
> 
> v3->v2:
> - Rename smc_clc_fill_fce as smc_clc_fill_fce_v2x;
> - Remove ISM_IDENT_MASK from drivers/s390/net/ism.h;
> - Add explicitly assigning 'false' to ism_v2_capable in ism_dev_init();
> - Remove smc_ism_set_v2_capable() helper for now, and introduce it in
>    later loopback-ism implementation;
> 
> v2->v1:
> - Fix sparse complaint;
> - Rebase to the latest net-next;
> 
Hi Wen Gu,

LGTM, Thank you!

Reviewed-and-tested-by: Wenjia Zhang <wenjia@linux.ibm.com>