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Message-ID: <DM6PR04MB65755D0EAEA05B06888569AEFC469@DM6PR04MB6575.namprd04.prod.outlook.com>
Date: Thu, 22 Apr 2021 08:23:42 +0000
From: Avri Altman <Avri.Altman@....com>
To: Ulf Hansson <ulf.hansson@...aro.org>,
"kimito.sakata@...cle.com" <kimito.sakata@...cle.com>
CC: "Bean Huo (beanhuo)" <beanhuo@...ron.com>,
"kenny.gibbons@...cle.com" <kenny.gibbons@...cle.com>,
"rkamdar@...ron.com" <rkamdar@...ron.com>,
linux-mmc <linux-mmc@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Kimito Sakata <ksakata@...itos-mbp.hsd1.co.comcast.net>
Subject: RE: [External] : Re: [PATCH v3] Re-submit of the erase command
addition plus removal of MMC_IOC_MULTI_CMD ifndef for erase. Author=Kimito
Sakata <kimito.sakata@...cle.com>
>
> On Wed, 21 Apr 2021 at 20:39, <kimito.sakata@...cle.com> wrote:
> >
> > Ulf
> >
> > Looks like Avri either has no comments or cannot respond. Could we
> > please go ahead with the changes?
>
> I think we should give him a couple more days, it's not been more than
> just a week since I looped him in to review the patch.
>
> Another option, that might be easier for him, is if you repost the
> patch and make sure Avri is on the to-list, this time.
>
> Kind regards
> Uffe
Hi,
Sorry for not catching this, my mail is looking for "mmc-utils" prefix....
When resending, can you please make sure that your patch is properly formatted:
Subject: [PATCH RESEND v3] mmc-utils: <your subject>
<informative commit log>
Thanks,
Avri
>
> >
> > Thanks
> > Kimito
> >
> > On 4/20/2021 11:22 AM, kimito.sakata@...cle.com wrote:
> > > Avri
> > >
> > > I'm sure you are very busy, but I would appreciate if you have any
> > > concerns on these changes that I submitted.
> > >
> > > Thanks
> > > Kimito
> > >
> > >
> > > On 4/15/2021 2:11 PM, kimito.sakata@...cle.com wrote:
> > >> Avri
> > >>
> > >> Please let me know if you have some concerns.
> > >>
> > >> Kimito
> > >>
> > >> On 4/15/2021 6:32 AM, Ulf Hansson wrote:
> > >>> + Avri
> > >>>
> > >>> On Fri, 2 Apr 2021 at 01:02, <luserhker@...il.com> wrote:
> > >>>> From: Kimito Sakata <kimito.sakata@...cle.com>
> > >>>>
> > >>>> Signed-off-by: Kimito Sakata <ksakata@...itos-
> MBP.hsd1.co.comcast.net>
> > >>> This looks okay to me, but I have looped in Avri who might have some
> > >>> comments.
> > >>>
> > >>> Kind regards
> > >>> Uffe
> > >>>
> > >>>> ---
> > >>>> mmc.c | 8 ++++
> > >>>> mmc.h | 13 +++++-
> > >>>> mmc_cmds.c | 129
> > >>>> +++++++++++++++++++++++++++++++++++++++++++++++++++++
> > >>>> mmc_cmds.h | 1 +
> > >>>> 4 files changed, 150 insertions(+), 1 deletion(-)
> > >>>>
> > >>>> diff --git a/mmc.c b/mmc.c
> > >>>> index f3d724b..eb2638b 100644
> > >>>> --- a/mmc.c
> > >>>> +++ b/mmc.c
> > >>>> @@ -229,6 +229,14 @@ static struct Command commands[] = {
> > >>>> "Run Field Firmware Update with <image name> on
> > >>>> <device>.\n",
> > >>>> NULL
> > >>>> },
> > >>>> + { do_erase, -4,
> > >>>> + "erase", "<type> " "<start address> " "<end address> "
> > >>>> "<device>\n"
> > >>>> + "Send Erase CMD38 with specific argument to the
> > >>>> <device>\n\n"
> > >>>> + "NOTE!: This will delete all user data in the
> > >>>> specified region of the device\n"
> > >>>> + "<type> must be: legacy | discard | secure-erase | "
> > >>>> + "secure-trim1 | secure-trim2 | trim \n",
> > >>>> + NULL
> > >>>> + },
> > >>>> { 0, 0, 0, 0 }
> > >>>> };
> > >>>>
> > >>>> diff --git a/mmc.h b/mmc.h
> > >>>> index 5754a9d..e9766d7 100644
> > >>>> --- a/mmc.h
> > >>>> +++ b/mmc.h
> > >>>> @@ -35,7 +35,15 @@
> > >>>> #define MMC_SET_WRITE_PROT 28 /* ac [31:0] data addr
> > >>>> R1b */
> > >>>> #define MMC_CLEAR_WRITE_PROT 29 /* ac [31:0] data addr
> > >>>> R1b */
> > >>>> #define MMC_SEND_WRITE_PROT_TYPE 31 /* ac [31:0] data addr
> > >>>> R1 */
> > >>>> -
> > >>>> +#define MMC_ERASE_GROUP_START 35 /* ac [31:0] data addr
> > >>>> R1 */
> > >>>> +#define MMC_ERASE_GROUP_END 36 /* ac [31:0] data addr
> > >>>> R1 */
> > >>>> +#define MMC_ERASE 38 /* ac [31] Secure request
> > >>>> + [30:16] set to 0
> > >>>> + [15] Force Garbage
> > >>>> Collect request
> > >>>> + [14:2] set to 0
> > >>>> + [1] Discard Enable
> > >>>> + [0] Identify Write
> > >>>> Blocks for
> > >>>> + Erase (or TRIM
> > >>>> Enable) R1b */
> > >>>> /*
> > >>>> * EXT_CSD fields
> > >>>> */
> > >>>> @@ -62,6 +70,7 @@
> > >>>> #define EXT_CSD_CACHE_SIZE_2 251
> > >>>> #define EXT_CSD_CACHE_SIZE_1 250
> > >>>> #define EXT_CSD_CACHE_SIZE_0 249
> > >>>> +#define EXT_CSD_SEC_FEATURE_SUPPORT 231
> > >>>> #define EXT_CSD_BOOT_INFO 228 /* R/W */
> > >>>> #define EXT_CSD_HC_ERASE_GRP_SIZE 224
> > >>>> #define EXT_CSD_HC_WP_GRP_SIZE 221
> > >>>> @@ -190,6 +199,8 @@
> > >>>> #define EXT_CSD_REV_V4_2 2
> > >>>> #define EXT_CSD_REV_V4_1 1
> > >>>> #define EXT_CSD_REV_V4_0 0
> > >>>> +#define EXT_CSD_SEC_GB_CL_EN (1<<4)
> > >>>> +#define EXT_CSD_SEC_ER_EN (1<<0)
> > >>>>
> > >>>>
> > >>>> /* From kernel linux/mmc/core.h */
> > >>>> diff --git a/mmc_cmds.c b/mmc_cmds.c
> > >>>> index 6c24cea..3e36ff2 100644
> > >>>> --- a/mmc_cmds.c
> > >>>> +++ b/mmc_cmds.c
> > >>>> @@ -2514,6 +2514,135 @@ int do_cache_dis(int nargs, char **argv)
> > >>>> return do_cache_ctrl(0, nargs, argv);
> > >>>> }
> > >>>>
> > >>>> +static int erase(int dev_fd, __u32 argin, __u32 start, __u32 end)
> > >>>> +{
> > >>>> + int ret = 0;
> > >>>> + struct mmc_ioc_multi_cmd *multi_cmd;
> > >>>> +
> > >>>> + multi_cmd = calloc(1, sizeof(struct mmc_ioc_multi_cmd) +
> > >>>> + 3 * sizeof(struct mmc_ioc_cmd));
> > >>>> + if (!multi_cmd) {
> > >>>> + perror("Failed to allocate memory");
> > >>>> + return -ENOMEM;
> > >>>> + }
> > >>>> +
> > >>>> + multi_cmd->num_of_cmds = 3;
> > >>>> + /* Set erase start address */
> > >>>> + multi_cmd->cmds[0].opcode = MMC_ERASE_GROUP_START;
> > >>>> + multi_cmd->cmds[0].arg = start;
> > >>>> + multi_cmd->cmds[0].flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 |
> > >>>> MMC_CMD_AC;
> > >>>> + multi_cmd->cmds[0].write_flag = 1;
> > >>>> +
> > >>>> + /* Set erase end address */
> > >>>> + multi_cmd->cmds[1].opcode = MMC_ERASE_GROUP_END;
> > >>>> + multi_cmd->cmds[1].arg = end;
> > >>>> + multi_cmd->cmds[1].flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 |
> > >>>> MMC_CMD_AC;
> > >>>> + multi_cmd->cmds[1].write_flag = 1;
> > >>>> +
> > >>>> + /* Send Erase Command */
> > >>>> + multi_cmd->cmds[2].opcode = MMC_ERASE;
> > >>>> + multi_cmd->cmds[2].arg = argin;
> > >>>> + multi_cmd->cmds[2].cmd_timeout_ms = 300*255*255;
> > >>>> + multi_cmd->cmds[2].flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B
> |
> > >>>> MMC_CMD_AC;
> > >>>> + multi_cmd->cmds[2].write_flag = 1;
> > >>>> +
> > >>>> + /* send erase cmd with multi-cmd */
> > >>>> + ret = ioctl(dev_fd, MMC_IOC_MULTI_CMD, multi_cmd);
> > >>>> + if (ret)
> > >>>> + perror("Erase multi-cmd ioctl");
> > >>>> +
> > >>>> + free(multi_cmd);
> > >>>> + return ret;
> > >>>> +}
> > >>>> +
> > >>>> +int do_erase(int nargs, char **argv)
> > >>>> +{
> > >>>> + int dev_fd, ret;
> > >>>> + char *print_str;
> > >>>> + char **eptr = NULL;
> > >>>> + __u8 ext_csd[512], checkup_mask = 0;
> > >>>> + __u32 arg, start, end;
> > >>>> +
> > >>>> + if (nargs != 5) {
> > >>>> + fprintf(stderr, "Usage: erase <type> <start addr>
> > >>>> <end addr> </path/to/mmcblkX>\n");
> > >>>> + exit(1);
> > >>>> + }
> > >>>> +
> > >>>> + if (strstr(argv[2], "0x") || strstr(argv[2], "0X"))
> > >>>> + start = strtol(argv[2], eptr, 16);
> > >>>> + else
> > >>>> + start = strtol(argv[2], eptr, 10);
> > >>>> +
> > >>>> + if (strstr(argv[3], "0x") || strstr(argv[3], "0X"))
> > >>>> + end = strtol(argv[3], eptr, 16);
> > >>>> + else
> > >>>> + end = strtol(argv[3], eptr, 10);
> > >>>> +
> > >>>> + if (end < start) {
> > >>>> + fprintf(stderr, "erase start [0x%08x] > erase end
> > >>>> [0x%08x]\n",
> > >>>> + start, end);
> > >>>> + exit(1);
> > >>>> + }
> > >>>> +
> > >>>> + if (strcmp(argv[1], "legacy") == 0) {
> > >>>> + arg = 0x00000000;
> > >>>> + print_str = "Legacy Erase";
> > >>>> + } else if (strcmp(argv[1], "discard") == 0) {
> > >>>> + arg = 0x00000003;
> > >>>> + print_str = "Discard";
> > >>>> + } else if (strcmp(argv[1], "secure-erase") == 0) {
> > >>>> + print_str = "Secure Erase";
> > >>>> + checkup_mask = EXT_CSD_SEC_ER_EN;
> > >>>> + arg = 0x80000000;
> > >>>> + } else if (strcmp(argv[1], "secure-trim1") == 0) {
> > >>>> + print_str = "Secure Trim Step 1";
> > >>>> + checkup_mask = EXT_CSD_SEC_ER_EN |
> > >>>> EXT_CSD_SEC_GB_CL_EN;
> > >>>> + arg = 0x80000001;
> > >>>> + } else if (strcmp(argv[1], "secure-trim2") == 0) {
> > >>>> + print_str = "Secure Trim Step 2";
> > >>>> + checkup_mask = EXT_CSD_SEC_ER_EN |
> > >>>> EXT_CSD_SEC_GB_CL_EN;
> > >>>> + arg = 0x80008000;
> > >>>> + } else if (strcmp(argv[1], "trim") == 0) {
> > >>>> + print_str = "Trim";
> > >>>> + checkup_mask = EXT_CSD_SEC_GB_CL_EN;
> > >>>> + arg = 0x00000001;
> > >>>> + } else {
> > >>>> + fprintf(stderr, "Unknown erase type: %s\n", argv[1]);
> > >>>> + exit(1);
> > >>>> + }
> > >>>> +
> > >>>> + dev_fd = open(argv[4], O_RDWR);
> > >>>> + if (dev_fd < 0) {
> > >>>> + perror(argv[4]);
> > >>>> + exit(1);
> > >>>> + }
> > >>>> +
> > >>>> + if (checkup_mask) {
> > >>>> + ret = read_extcsd(dev_fd, ext_csd);
> > >>>> + if (ret) {
> > >>>> + fprintf(stderr, "Could not read EXT_CSD
> > >>>> from %s\n",
> > >>>> + argv[4]);
> > >>>> + goto out;
> > >>>> + }
> > >>>> + if ((checkup_mask &
> > >>>> ext_csd[EXT_CSD_SEC_FEATURE_SUPPORT]) !=
> > >>>> + checkup_mask) {
> > >>>> + fprintf(stderr, "%s is not supported in %s\n",
> > >>>> + print_str, argv[4]);
> > >>>> + ret = -ENOTSUP;
> > >>>> + goto out;
> > >>>> + }
> > >>>> +
> > >>>> + }
> > >>>> + printf("Executing %s from 0x%08x to 0x%08x\n", print_str,
> > >>>> start, end);
> > >>>> +
> > >>>> + ret = erase(dev_fd, arg, start, end);
> > >>>> +out:
> > >>>> + printf(" %s %s!\n\n", print_str, ret ? "Failed" : "Succeed");
> > >>>> + close(dev_fd);
> > >>>> + return ret;
> > >>>> +}
> > >>>> +
> > >>>> +
> > >>>> int do_ffu(int nargs, char **argv)
> > >>>> {
> > >>>> #ifndef MMC_IOC_MULTI_CMD
> > >>>> diff --git a/mmc_cmds.h b/mmc_cmds.h
> > >>>> index 9d3246c..8331ab2 100644
> > >>>> --- a/mmc_cmds.h
> > >>>> +++ b/mmc_cmds.h
> > >>>> @@ -45,3 +45,4 @@ int do_ffu(int nargs, char **argv);
> > >>>> int do_read_scr(int argc, char **argv);
> > >>>> int do_read_cid(int argc, char **argv);
> > >>>> int do_read_csd(int argc, char **argv);
> > >>>> +int do_erase(int nargs, char **argv);
> > >>>> --
> > >>>> 2.24.1 (Apple Git-126)
> > >>>>
> > >>
> > >
> >
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