linux-kernel - Re: [PATCH 1/2] scsi: ufs: Add Multi-Circular Queue support

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Date:   Mon, 25 Jul 2022 09:26:28 -0700
From:   "Asutosh Das (asd)" <quic_asutoshd@...cinc.com>
To:     Avri Altman <Avri.Altman@....com>, Can Guo <quic_cang@...cinc.com>,
        "bvanassche@....org" <bvanassche@....org>,
        "stanley.chu@...iatek.com" <stanley.chu@...iatek.com>,
        "adrian.hunter@...el.com" <adrian.hunter@...el.com>,
        "alim.akhtar@...sung.com" <alim.akhtar@...sung.com>,
        "beanhuo@...ron.com" <beanhuo@...ron.com>,
        "quic_nguyenb@...cinc.com" <quic_nguyenb@...cinc.com>,
        "quic_ziqichen@...cinc.com" <quic_ziqichen@...cinc.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "kernel-team@...roid.com" <kernel-team@...roid.com>
CC:     "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Daejun Park <daejun7.park@...sung.com>,
        Jinyoung Choi <j-young.choi@...sung.com>,
        Kiwoong Kim <kwmad.kim@...sung.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] scsi: ufs: Add Multi-Circular Queue support

On 7/23/2022 1:22 PM, Avri Altman wrote:
>> -static void ufshcd_host_memory_configure(struct ufs_hba *hba)
>> +static int ufshcd_host_memory_configure(struct ufs_hba *hba)
>>   {
>>          struct utp_transfer_req_desc *utrdlp;
>>          dma_addr_t cmd_desc_dma_addr;
>> @@ -3721,6 +3764,9 @@ static void ufshcd_host_memory_configure(struct
>> ufs_hba *hba)
>>          int cmd_desc_size;
>>          int i;
>>
>> +       if (is_mcq_enabled(hba))
>> +               return ufshcd_mcq_memory_configure(hba);
>> +
>>          utrdlp = hba->utrdl_base_addr;
>>
>>          response_offset =
>> @@ -3759,6 +3805,8 @@ static void ufshcd_host_memory_configure(struct
>> ufs_hba *hba)
>>
>>                  ufshcd_init_lrb(hba, &hba->lrb[i], i);
> If is_mcq_enabled, do you still call ufshcd_init_lrb?
> 
> Thanks,
> Avri
> 
>>          }
Another function ufshcd_mcq_init_lrb() is called.

-asd