| Message ID | 20230625103814.105-1-avri.altman@wdc.com |
|---|---|
| Headers | show |
| Series | mmc-utils: ffu: ffu of large images | expand |
Hi, Would appreciate your comments. Thanks, Avri > -----Original Message----- > From: Avri Altman <avri.altman@wdc.com> > Sent: Sunday, June 25, 2023 1:38 PM > To: Ulf Hansson <ulf.hansson@linaro.org>; linux-mmc@vger.kernel.org > Cc: Avri Altman <Avri.Altman@wdc.com> > Subject: [PATCH 0/6] mmc-utils: ffu: ffu of large images > > ffu is done using a single multi-ioctl to carry the entire firmware image. This is > limiting the fw image size to be at most 512KB, as the mmc driver restricts > each single ioc data to be at most MMC_IOC_MAX_BYTES. > > The spec however, allows the fw image to be written using multiple write > commands. So if the fw image is larger than 512KB, split it into a series of > smaller chunks. > > Avri Altman (6): > mmc-utils: Add fill_switch_cmd handler > mmc-utils: Add arg argument to set_single_cmd > mmc-utils: ffu: Simplify ext_csd bytes parsing > mmc-utils: ffu: Add ffu multi-command set handler > mmc-utils: ffu: Allow ffu of large images > mmc-utils: ffu: Add optional chunk-size argument > > mmc.c | 6 +- > mmc_cmds.c | 161 +++++++++++++++++++++++++++-------------------------- > 2 files changed, 86 insertions(+), 81 deletions(-) > > -- > 2.40.1
> > Hi, > > Would appreciate your comments. > A gentle ping. And a 2nd one. Thanks, Avri > > Thanks, > Avri > > > > > Thanks, > > Avri > > > > > -----Original Message----- > > > From: Avri Altman <avri.altman@wdc.com> > > > Sent: Sunday, June 25, 2023 1:38 PM > > > To: Ulf Hansson <ulf.hansson@linaro.org>; linux-mmc@vger.kernel.org > > > Cc: Avri Altman <Avri.Altman@wdc.com> > > > Subject: [PATCH 0/6] mmc-utils: ffu: ffu of large images > > > > > > ffu is done using a single multi-ioctl to carry the entire firmware > > > image. This is limiting the fw image size to be at most 512KB, as > > > the mmc driver restricts each single ioc data to be at most > > MMC_IOC_MAX_BYTES. > > > > > > The spec however, allows the fw image to be written using multiple > > > write commands. So if the fw image is larger than 512KB, split it > > > into a series of smaller chunks. > > > > > > Avri Altman (6): > > > mmc-utils: Add fill_switch_cmd handler > > > mmc-utils: Add arg argument to set_single_cmd > > > mmc-utils: ffu: Simplify ext_csd bytes parsing > > > mmc-utils: ffu: Add ffu multi-command set handler > > > mmc-utils: ffu: Allow ffu of large images > > > mmc-utils: ffu: Add optional chunk-size argument > > > > > > mmc.c | 6 +- > > > mmc_cmds.c | 161 > > > +++++++++++++++++++++++++++-------------------------- > > > 2 files changed, 86 insertions(+), 81 deletions(-) > > > > > > -- > > > 2.40.1
On Sun, 25 Jun 2023 at 12:38, Avri Altman <avri.altman@wdc.com> wrote: > > ffu is done using a single multi-ioctl to carry the entire firmware > image. This is limiting the fw image size to be at most 512KB, as the > mmc driver restricts each single ioc data to be at most > MMC_IOC_MAX_BYTES. > > The spec however, allows the fw image to be written using multiple write > commands. So if the fw image is larger than 512KB, split it into a > series of smaller chunks. > > Avri Altman (6): > mmc-utils: Add fill_switch_cmd handler > mmc-utils: Add arg argument to set_single_cmd > mmc-utils: ffu: Simplify ext_csd bytes parsing > mmc-utils: ffu: Add ffu multi-command set handler > mmc-utils: ffu: Allow ffu of large images > mmc-utils: ffu: Add optional chunk-size argument > > mmc.c | 6 +- > mmc_cmds.c | 161 +++++++++++++++++++++++++++-------------------------- > 2 files changed, 86 insertions(+), 81 deletions(-) > Apologies for the delay! Applied to git.kernel.org/pub/scm/utils/mmc/mmc-utils.git master, thanks! Kind regards Uffe