I will add some warnings in dmesg.
Thanks

Best Regards
Rex


> -----Original Message-----
> From: Quan, Evan
> Sent: Sunday, September 30, 2018 10:30 AM
> To: Zhu, Rex <rex....@amd.com>; amd-gfx@lists.freedesktop.org
> Cc: Zhu, Rex <rex....@amd.com>
> Subject: RE: [PATCH 1/6] drm/amdgpu: Remove FW_LOAD_DIRECT type
> support on VI
> 
> Instead of change the fw load type to AMDGPU_FW_LOAD_SMU silently, it's
> better to warn/error out if user specify FW_LOAD_DIRECT load type.
> 
> Regards,
> Evan
> > -----Original Message-----
> > From: amd-gfx <amd-gfx-boun...@lists.freedesktop.org> On Behalf Of Rex
> > Zhu
> > Sent: 2018年9月30日 0:15
> > To: amd-gfx@lists.freedesktop.org
> > Cc: Zhu, Rex <rex....@amd.com>
> > Subject: [PATCH 1/6] drm/amdgpu: Remove FW_LOAD_DIRECT type
> support on
> > VI
> >
> > AMDGPU_FW_LOAD_DIRECT is used for bring up.
> > Now it don't work any more. so remove the support.
> >
> > Signed-off-by: Rex Zhu <rex....@amd.com>
> > ---
> >  drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c |   3 -
> >  drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c     | 249 ++++++---------------------
> > ---
> >  drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c    |  57 +------
> >  3 files changed, 56 insertions(+), 253 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
> > b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
> > index 1fa8bc3..fb2bdf3 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
> > @@ -297,9 +297,6 @@ enum amdgpu_firmware_load_type
> >     case CHIP_POLARIS11:
> >     case CHIP_POLARIS12:
> >     case CHIP_VEGAM:
> > -           if (!load_type)
> > -                   return AMDGPU_FW_LOAD_DIRECT;
> > -           else
> >                     return AMDGPU_FW_LOAD_SMU;
> >     case CHIP_VEGA10:
> >     case CHIP_RAVEN:
> > diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> > b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> > index 2aeef2b..c63ede1 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> > @@ -1173,64 +1173,61 @@ static int gfx_v8_0_init_microcode(struct
> > amdgpu_device *adev)
> >             }
> >     }
> >
> > -   if (adev->firmware.load_type == AMDGPU_FW_LOAD_SMU) {
> > -           info = &adev-
> > >firmware.ucode[AMDGPU_UCODE_ID_CP_PFP];
> > -           info->ucode_id = AMDGPU_UCODE_ID_CP_PFP;
> > -           info->fw = adev->gfx.pfp_fw;
> > -           header = (const struct common_firmware_header *)info-
> > >fw->data;
> > -           adev->firmware.fw_size +=
> > -                   ALIGN(le32_to_cpu(header->ucode_size_bytes),
> > PAGE_SIZE);
> > -
> > -           info = &adev-
> > >firmware.ucode[AMDGPU_UCODE_ID_CP_ME];
> > -           info->ucode_id = AMDGPU_UCODE_ID_CP_ME;
> > -           info->fw = adev->gfx.me_fw;
> > -           header = (const struct common_firmware_header *)info-
> > >fw->data;
> > -           adev->firmware.fw_size +=
> > -                   ALIGN(le32_to_cpu(header->ucode_size_bytes),
> > PAGE_SIZE);
> > -
> > -           info = &adev-
> > >firmware.ucode[AMDGPU_UCODE_ID_CP_CE];
> > -           info->ucode_id = AMDGPU_UCODE_ID_CP_CE;
> > -           info->fw = adev->gfx.ce_fw;
> > -           header = (const struct common_firmware_header *)info-
> > >fw->data;
> > -           adev->firmware.fw_size +=
> > -                   ALIGN(le32_to_cpu(header->ucode_size_bytes),
> > PAGE_SIZE);
> > +   info = &adev->firmware.ucode[AMDGPU_UCODE_ID_CP_PFP];
> > +   info->ucode_id = AMDGPU_UCODE_ID_CP_PFP;
> > +   info->fw = adev->gfx.pfp_fw;
> > +   header = (const struct common_firmware_header *)info->fw->data;
> > +   adev->firmware.fw_size +=
> > +           ALIGN(le32_to_cpu(header->ucode_size_bytes),
> > PAGE_SIZE);
> > +
> > +   info = &adev->firmware.ucode[AMDGPU_UCODE_ID_CP_ME];
> > +   info->ucode_id = AMDGPU_UCODE_ID_CP_ME;
> > +   info->fw = adev->gfx.me_fw;
> > +   header = (const struct common_firmware_header *)info->fw->data;
> > +   adev->firmware.fw_size +=
> > +           ALIGN(le32_to_cpu(header->ucode_size_bytes),
> > PAGE_SIZE);
> > +
> > +   info = &adev->firmware.ucode[AMDGPU_UCODE_ID_CP_CE];
> > +   info->ucode_id = AMDGPU_UCODE_ID_CP_CE;
> > +   info->fw = adev->gfx.ce_fw;
> > +   header = (const struct common_firmware_header *)info->fw->data;
> > +   adev->firmware.fw_size +=
> > +           ALIGN(le32_to_cpu(header->ucode_size_bytes),
> > PAGE_SIZE);
> > +
> > +   info = &adev->firmware.ucode[AMDGPU_UCODE_ID_RLC_G];
> > +   info->ucode_id = AMDGPU_UCODE_ID_RLC_G;
> > +   info->fw = adev->gfx.rlc_fw;
> > +   header = (const struct common_firmware_header *)info->fw->data;
> > +   adev->firmware.fw_size +=
> > +           ALIGN(le32_to_cpu(header->ucode_size_bytes),
> > PAGE_SIZE);
> > +
> > +   info = &adev->firmware.ucode[AMDGPU_UCODE_ID_CP_MEC1];
> > +   info->ucode_id = AMDGPU_UCODE_ID_CP_MEC1;
> > +   info->fw = adev->gfx.mec_fw;
> > +   header = (const struct common_firmware_header *)info->fw->data;
> > +   adev->firmware.fw_size +=
> > +           ALIGN(le32_to_cpu(header->ucode_size_bytes),
> > PAGE_SIZE);
> > +
> > +   /* we need account JT in */
> > +   cp_hdr = (const struct gfx_firmware_header_v1_0 *)adev-
> > >gfx.mec_fw->data;
> > +   adev->firmware.fw_size +=
> > +           ALIGN(le32_to_cpu(cp_hdr->jt_size) << 2, PAGE_SIZE);
> >
> > -           info = &adev-
> > >firmware.ucode[AMDGPU_UCODE_ID_RLC_G];
> > -           info->ucode_id = AMDGPU_UCODE_ID_RLC_G;
> > -           info->fw = adev->gfx.rlc_fw;
> > -           header = (const struct common_firmware_header *)info-
> > >fw->data;
> > +   if (amdgpu_sriov_vf(adev)) {
> > +           info = &adev-
> > >firmware.ucode[AMDGPU_UCODE_ID_STORAGE];
> > +           info->ucode_id = AMDGPU_UCODE_ID_STORAGE;
> > +           info->fw = adev->gfx.mec_fw;
> >             adev->firmware.fw_size +=
> > -                   ALIGN(le32_to_cpu(header->ucode_size_bytes),
> > PAGE_SIZE);
> > +                   ALIGN(le32_to_cpu(64 * PAGE_SIZE), PAGE_SIZE);
> > +   }
> >
> > -           info = &adev-
> > >firmware.ucode[AMDGPU_UCODE_ID_CP_MEC1];
> > -           info->ucode_id = AMDGPU_UCODE_ID_CP_MEC1;
> > -           info->fw = adev->gfx.mec_fw;
> > +   if (adev->gfx.mec2_fw) {
> > +           info = &adev-
> > >firmware.ucode[AMDGPU_UCODE_ID_CP_MEC2];
> > +           info->ucode_id = AMDGPU_UCODE_ID_CP_MEC2;
> > +           info->fw = adev->gfx.mec2_fw;
> >             header = (const struct common_firmware_header *)info-
> > >fw->data;
> >             adev->firmware.fw_size +=
> >                     ALIGN(le32_to_cpu(header->ucode_size_bytes),
> > PAGE_SIZE);
> > -
> > -           /* we need account JT in */
> > -           cp_hdr = (const struct gfx_firmware_header_v1_0 *)adev-
> > >gfx.mec_fw->data;
> > -           adev->firmware.fw_size +=
> > -                   ALIGN(le32_to_cpu(cp_hdr->jt_size) << 2,
> > PAGE_SIZE);
> > -
> > -           if (amdgpu_sriov_vf(adev)) {
> > -                   info = &adev-
> > >firmware.ucode[AMDGPU_UCODE_ID_STORAGE];
> > -                   info->ucode_id = AMDGPU_UCODE_ID_STORAGE;
> > -                   info->fw = adev->gfx.mec_fw;
> > -                   adev->firmware.fw_size +=
> > -                           ALIGN(le32_to_cpu(64 * PAGE_SIZE),
> > PAGE_SIZE);
> > -           }
> > -
> > -           if (adev->gfx.mec2_fw) {
> > -                   info = &adev-
> > >firmware.ucode[AMDGPU_UCODE_ID_CP_MEC2];
> > -                   info->ucode_id = AMDGPU_UCODE_ID_CP_MEC2;
> > -                   info->fw = adev->gfx.mec2_fw;
> > -                   header = (const struct common_firmware_header
> > *)info->fw->data;
> > -                   adev->firmware.fw_size +=
> > -                           ALIGN(le32_to_cpu(header-
> > >ucode_size_bytes), PAGE_SIZE);
> > -           }
> > -
> >     }
> >
> >  out:
> > @@ -4181,45 +4178,11 @@ static void gfx_v8_0_rlc_start(struct
> > amdgpu_device *adev)
> >     udelay(50);
> >  }
> >
> > -static int gfx_v8_0_rlc_load_microcode(struct amdgpu_device *adev) -{
> > -   const struct rlc_firmware_header_v2_0 *hdr;
> > -   const __le32 *fw_data;
> > -   unsigned i, fw_size;
> > -
> > -   if (!adev->gfx.rlc_fw)
> > -           return -EINVAL;
> > -
> > -   hdr = (const struct rlc_firmware_header_v2_0 *)adev->gfx.rlc_fw-
> > >data;
> > -   amdgpu_ucode_print_rlc_hdr(&hdr->header);
> > -
> > -   fw_data = (const __le32 *)(adev->gfx.rlc_fw->data +
> > -                      le32_to_cpu(hdr-
> > >header.ucode_array_offset_bytes));
> > -   fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
> > -
> > -   WREG32(mmRLC_GPM_UCODE_ADDR, 0);
> > -   for (i = 0; i < fw_size; i++)
> > -           WREG32(mmRLC_GPM_UCODE_DATA,
> > le32_to_cpup(fw_data++));
> > -   WREG32(mmRLC_GPM_UCODE_ADDR, adev->gfx.rlc_fw_version);
> > -
> > -   return 0;
> > -}
> > -
> >  static int gfx_v8_0_rlc_resume(struct amdgpu_device *adev)  {
> > -   int r;
> > -
> >     gfx_v8_0_rlc_stop(adev);
> >     gfx_v8_0_rlc_reset(adev);
> >     gfx_v8_0_init_pg(adev);
> > -
> > -   if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {
> > -           /* legacy rlc firmware loading */
> > -           r = gfx_v8_0_rlc_load_microcode(adev);
> > -           if (r)
> > -                   return r;
> > -   }
> > -
> >     gfx_v8_0_rlc_start(adev);
> >
> >     return 0;
> > @@ -4245,63 +4208,6 @@ static void gfx_v8_0_cp_gfx_enable(struct
> > amdgpu_device *adev, bool enable)
> >     udelay(50);
> >  }
> >
> > -static int gfx_v8_0_cp_gfx_load_microcode(struct amdgpu_device *adev) -
> {
> > -   const struct gfx_firmware_header_v1_0 *pfp_hdr;
> > -   const struct gfx_firmware_header_v1_0 *ce_hdr;
> > -   const struct gfx_firmware_header_v1_0 *me_hdr;
> > -   const __le32 *fw_data;
> > -   unsigned i, fw_size;
> > -
> > -   if (!adev->gfx.me_fw || !adev->gfx.pfp_fw || !adev->gfx.ce_fw)
> > -           return -EINVAL;
> > -
> > -   pfp_hdr = (const struct gfx_firmware_header_v1_0 *)
> > -           adev->gfx.pfp_fw->data;
> > -   ce_hdr = (const struct gfx_firmware_header_v1_0 *)
> > -           adev->gfx.ce_fw->data;
> > -   me_hdr = (const struct gfx_firmware_header_v1_0 *)
> > -           adev->gfx.me_fw->data;
> > -
> > -   amdgpu_ucode_print_gfx_hdr(&pfp_hdr->header);
> > -   amdgpu_ucode_print_gfx_hdr(&ce_hdr->header);
> > -   amdgpu_ucode_print_gfx_hdr(&me_hdr->header);
> > -
> > -   gfx_v8_0_cp_gfx_enable(adev, false);
> > -
> > -   /* PFP */
> > -   fw_data = (const __le32 *)
> > -           (adev->gfx.pfp_fw->data +
> > -            le32_to_cpu(pfp_hdr->header.ucode_array_offset_bytes));
> > -   fw_size = le32_to_cpu(pfp_hdr->header.ucode_size_bytes) / 4;
> > -   WREG32(mmCP_PFP_UCODE_ADDR, 0);
> > -   for (i = 0; i < fw_size; i++)
> > -           WREG32(mmCP_PFP_UCODE_DATA,
> > le32_to_cpup(fw_data++));
> > -   WREG32(mmCP_PFP_UCODE_ADDR, adev->gfx.pfp_fw_version);
> > -
> > -   /* CE */
> > -   fw_data = (const __le32 *)
> > -           (adev->gfx.ce_fw->data +
> > -            le32_to_cpu(ce_hdr->header.ucode_array_offset_bytes));
> > -   fw_size = le32_to_cpu(ce_hdr->header.ucode_size_bytes) / 4;
> > -   WREG32(mmCP_CE_UCODE_ADDR, 0);
> > -   for (i = 0; i < fw_size; i++)
> > -           WREG32(mmCP_CE_UCODE_DATA,
> > le32_to_cpup(fw_data++));
> > -   WREG32(mmCP_CE_UCODE_ADDR, adev->gfx.ce_fw_version);
> > -
> > -   /* ME */
> > -   fw_data = (const __le32 *)
> > -           (adev->gfx.me_fw->data +
> > -            le32_to_cpu(me_hdr->header.ucode_array_offset_bytes));
> > -   fw_size = le32_to_cpu(me_hdr->header.ucode_size_bytes) / 4;
> > -   WREG32(mmCP_ME_RAM_WADDR, 0);
> > -   for (i = 0; i < fw_size; i++)
> > -           WREG32(mmCP_ME_RAM_DATA,
> > le32_to_cpup(fw_data++));
> > -   WREG32(mmCP_ME_RAM_WADDR, adev->gfx.me_fw_version);
> > -
> > -   return 0;
> > -}
> > -
> >  static u32 gfx_v8_0_get_csb_size(struct amdgpu_device *adev)  {
> >     u32 count = 0;
> > @@ -4501,52 +4407,6 @@ static void gfx_v8_0_cp_compute_enable(struct
> > amdgpu_device *adev, bool enable)
> >     udelay(50);
> >  }
> >
> > -static int gfx_v8_0_cp_compute_load_microcode(struct amdgpu_device
> > *adev) -{
> > -   const struct gfx_firmware_header_v1_0 *mec_hdr;
> > -   const __le32 *fw_data;
> > -   unsigned i, fw_size;
> > -
> > -   if (!adev->gfx.mec_fw)
> > -           return -EINVAL;
> > -
> > -   gfx_v8_0_cp_compute_enable(adev, false);
> > -
> > -   mec_hdr = (const struct gfx_firmware_header_v1_0 *)adev-
> > >gfx.mec_fw->data;
> > -   amdgpu_ucode_print_gfx_hdr(&mec_hdr->header);
> > -
> > -   fw_data = (const __le32 *)
> > -           (adev->gfx.mec_fw->data +
> > -            le32_to_cpu(mec_hdr->header.ucode_array_offset_bytes));
> > -   fw_size = le32_to_cpu(mec_hdr->header.ucode_size_bytes) / 4;
> > -
> > -   /* MEC1 */
> > -   WREG32(mmCP_MEC_ME1_UCODE_ADDR, 0);
> > -   for (i = 0; i < fw_size; i++)
> > -           WREG32(mmCP_MEC_ME1_UCODE_DATA,
> > le32_to_cpup(fw_data+i));
> > -   WREG32(mmCP_MEC_ME1_UCODE_ADDR, adev-
> > >gfx.mec_fw_version);
> > -
> > -   /* Loading MEC2 firmware is only necessary if MEC2 should run
> > different microcode than MEC1. */
> > -   if (adev->gfx.mec2_fw) {
> > -           const struct gfx_firmware_header_v1_0 *mec2_hdr;
> > -
> > -           mec2_hdr = (const struct gfx_firmware_header_v1_0
> > *)adev->gfx.mec2_fw->data;
> > -           amdgpu_ucode_print_gfx_hdr(&mec2_hdr->header);
> > -
> > -           fw_data = (const __le32 *)
> > -                   (adev->gfx.mec2_fw->data +
> > -                    le32_to_cpu(mec2_hdr-
> > >header.ucode_array_offset_bytes));
> > -           fw_size = le32_to_cpu(mec2_hdr-
> > >header.ucode_size_bytes) / 4;
> > -
> > -           WREG32(mmCP_MEC_ME2_UCODE_ADDR, 0);
> > -           for (i = 0; i < fw_size; i++)
> > -                   WREG32(mmCP_MEC_ME2_UCODE_DATA,
> > le32_to_cpup(fw_data+i));
> > -           WREG32(mmCP_MEC_ME2_UCODE_ADDR, adev-
> > >gfx.mec2_fw_version);
> > -   }
> > -
> > -   return 0;
> > -}
> > -
> >  /* KIQ functions */
> >  static void gfx_v8_0_kiq_setting(struct amdgpu_ring *ring)  { @@
> > -4980,17
> > +4840,6 @@ static int gfx_v8_0_cp_resume(struct amdgpu_device *adev)
> >     if (!(adev->flags & AMD_IS_APU))
> >             gfx_v8_0_enable_gui_idle_interrupt(adev, false);
> >
> > -   if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {
> > -                   /* legacy firmware loading */
> > -           r = gfx_v8_0_cp_gfx_load_microcode(adev);
> > -           if (r)
> > -                   return r;
> > -
> > -           r = gfx_v8_0_cp_compute_load_microcode(adev);
> > -           if (r)
> > -                   return r;
> > -   }
> > -
> >     r = gfx_v8_0_kiq_resume(adev);
> >     if (r)
> >             return r;
> > diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> > b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> > index 6d5c8ac..6fb3eda 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> > @@ -318,14 +318,13 @@ static int sdma_v3_0_init_microcode(struct
> > amdgpu_device *adev)
> >             if (adev->sdma.instance[i].feature_version >= 20)
> >                     adev->sdma.instance[i].burst_nop = true;
> >
> > -           if (adev->firmware.load_type == AMDGPU_FW_LOAD_SMU)
> > {
> > -                   info = &adev-
> > >firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i];
> > -                   info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i;
> > -                   info->fw = adev->sdma.instance[i].fw;
> > -                   header = (const struct common_firmware_header
> > *)info->fw->data;
> > -                   adev->firmware.fw_size +=
> > -                           ALIGN(le32_to_cpu(header-
> > >ucode_size_bytes), PAGE_SIZE);
> > -           }
> > +           info = &adev-
> > >firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i];
> > +           info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i;
> > +           info->fw = adev->sdma.instance[i].fw;
> > +           header = (const struct common_firmware_header *)info-
> > >fw->data;
> > +           adev->firmware.fw_size +=
> > +                   ALIGN(le32_to_cpu(header->ucode_size_bytes),
> > PAGE_SIZE);
> > +
> >     }
> >  out:
> >     if (err) {
> > @@ -778,42 +777,6 @@ static int sdma_v3_0_rlc_resume(struct
> > amdgpu_device *adev)  }
> >
> >  /**
> > - * sdma_v3_0_load_microcode - load the sDMA ME ucode
> > - *
> > - * @adev: amdgpu_device pointer
> > - *
> > - * Loads the sDMA0/1 ucode.
> > - * Returns 0 for success, -EINVAL if the ucode is not available.
> > - */
> > -static int sdma_v3_0_load_microcode(struct amdgpu_device *adev) -{
> > -   const struct sdma_firmware_header_v1_0 *hdr;
> > -   const __le32 *fw_data;
> > -   u32 fw_size;
> > -   int i, j;
> > -
> > -   /* halt the MEs */
> > -   sdma_v3_0_enable(adev, false);
> > -
> > -   for (i = 0; i < adev->sdma.num_instances; i++) {
> > -           if (!adev->sdma.instance[i].fw)
> > -                   return -EINVAL;
> > -           hdr = (const struct sdma_firmware_header_v1_0 *)adev-
> > >sdma.instance[i].fw->data;
> > -           amdgpu_ucode_print_sdma_hdr(&hdr->header);
> > -           fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
> > -           fw_data = (const __le32 *)
> > -                   (adev->sdma.instance[i].fw->data +
> > -                           le32_to_cpu(hdr-
> > >header.ucode_array_offset_bytes));
> > -           WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], 0);
> > -           for (j = 0; j < fw_size; j++)
> > -                   WREG32(mmSDMA0_UCODE_DATA +
> > sdma_offsets[i], le32_to_cpup(fw_data++));
> > -           WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], adev-
> > >sdma.instance[i].fw_version);
> > -   }
> > -
> > -   return 0;
> > -}
> > -
> > -/**
> >   * sdma_v3_0_start - setup and start the async dma engines
> >   *
> >   * @adev: amdgpu_device pointer
> > @@ -825,12 +788,6 @@ static int sdma_v3_0_start(struct amdgpu_device
> > *adev)  {
> >     int r;
> >
> > -   if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {
> > -           r = sdma_v3_0_load_microcode(adev);
> > -           if (r)
> > -                   return r;
> > -   }
> > -
> >     /* disable sdma engine before programing it */
> >     sdma_v3_0_ctx_switch_enable(adev, false);
> >     sdma_v3_0_enable(adev, false);
> > --
> > 1.9.1
> >
> > _______________________________________________
> > amd-gfx mailing list
> > amd-gfx@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

Reply via email to