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Differential D18817 Diff 52761 sys/dev/ixl/ixl_pf_main.c

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sys/dev/ixl/ixl_pf_main.c

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int int
ixl_handle_nvmupd_cmd(struct ixl_pf *pf, struct ifdrv *ifd) ixl_handle_nvmupd_cmd(struct ixl_pf *pf, struct ifdrv *ifd)
{ {
struct i40e_hw *hw = &pf->hw; struct i40e_hw *hw = &pf->hw;
struct i40e_nvm_access *nvma; struct i40e_nvm_access *nvma;
device_t dev = pf->dev; device_t dev = pf->dev;
enum i40e_status_code status = 0; enum i40e_status_code status = 0;
int perrno; size_t nvma_size, ifd_len, exp_len;
int err, perrno;
DEBUGFUNC("ixl_handle_nvmupd_cmd"); DEBUGFUNC("ixl_handle_nvmupd_cmd");
/* Sanity checks */ /* Sanity checks */
if (ifd->ifd_len < sizeof(struct i40e_nvm_access) || nvma_size = sizeof(struct i40e_nvm_access);
ifd_len = ifd->ifd_len;
if (ifd_len < nvma_size ||
ifd->ifd_data == NULL) { ifd->ifd_data == NULL) {
device_printf(dev, "%s: incorrect ifdrv length or data pointer\n", device_printf(dev, "%s: incorrect ifdrv length or data pointer\n",
__func__); __func__);
device_printf(dev, "%s: ifdrv length: %zu, sizeof(struct i40e_nvm_access): %zu\n", device_printf(dev, "%s: ifdrv length: %zu, sizeof(struct i40e_nvm_access): %zu\n",
__func__, ifd->ifd_len, sizeof(struct i40e_nvm_access)); __func__, ifd_len, nvma_size);
device_printf(dev, "%s: data pointer: %p\n", __func__, device_printf(dev, "%s: data pointer: %p\n", __func__,
ifd->ifd_data); ifd->ifd_data);
return (EINVAL); return (EINVAL);
} }
nvma = (struct i40e_nvm_access *)ifd->ifd_data; nvma = malloc(ifd_len, M_DEVBUF, M_WAITOK);
err = copyin(ifd->ifd_data, nvma, ifd_len);
if (err) {
device_printf(dev, "%s: Cannot get request from user space\n",
__func__);
free(nvma, M_DEVBUF);
return (err);
}
if (pf->dbg_mask & IXL_DBG_NVMUPD) if (pf->dbg_mask & IXL_DBG_NVMUPD)
ixl_print_nvm_cmd(dev, nvma); ixl_print_nvm_cmd(dev, nvma);
if (pf->state & IXL_PF_STATE_ADAPTER_RESETTING) { if (pf->state & IXL_PF_STATE_ADAPTER_RESETTING) {
int count = 0; int count = 0;
while (count++ < 100) { while (count++ < 100) {
i40e_msec_delay(100); i40e_msec_delay(100);
if (!(pf->state & IXL_PF_STATE_ADAPTER_RESETTING)) if (!(pf->state & IXL_PF_STATE_ADAPTER_RESETTING))
break; break;
} }
} }
if (!(pf->state & IXL_PF_STATE_ADAPTER_RESETTING)) { if (pf->state & IXL_PF_STATE_ADAPTER_RESETTING) {
free(nvma, M_DEVBUF);
return (-EBUSY);
}
if (nvma->data_size < 1 || nvma->data_size > 4096) {
device_printf(dev, "%s: invalid request, data size not in supported range\n",
__func__);
free(nvma, M_DEVBUF);
return (EINVAL);
}
/*
* Older versions of the NVM update tool don't set ifd_len to the size
* of the entire buffer passed to the ioctl. Check the data_size field
* in the contained i40e_nvm_access struct and ensure everything is
* copied in from userspace.
*/
exp_len = nvma_size + nvma->data_size - 1; /* One byte is kept in struct */
if (ifd_len < exp_len) {
ifd_len = exp_len;
nvma = realloc(nvma, ifd_len, M_DEVBUF, M_WAITOK);
err = copyin(ifd->ifd_data, nvma, ifd_len);
if (err) {
device_printf(dev, "%s: Cannot get request from user space\n",
__func__);
free(nvma, M_DEVBUF);
return (err);
}
}
// TODO: Might need a different lock here // TODO: Might need a different lock here
// IXL_PF_LOCK(pf); // IXL_PF_LOCK(pf);
status = i40e_nvmupd_command(hw, nvma, nvma->data, &perrno); status = i40e_nvmupd_command(hw, nvma, nvma->data, &perrno);
// IXL_PF_UNLOCK(pf); // IXL_PF_UNLOCK(pf);
} else {
perrno = -EBUSY; err = copyout(nvma, ifd->ifd_data, ifd_len);
free(nvma, M_DEVBUF);
if (err) {
device_printf(dev, "%s: Cannot return data to user space\n",
__func__);
return (err);
} }
/* Let the nvmupdate report errors, show them only when debug is enabled */ /* Let the nvmupdate report errors, show them only when debug is enabled */
if (status != 0 && (pf->dbg_mask & IXL_DBG_NVMUPD) != 0) if (status != 0 && (pf->dbg_mask & IXL_DBG_NVMUPD) != 0)
device_printf(dev, "i40e_nvmupd_command status %s, perrno %d\n", device_printf(dev, "i40e_nvmupd_command status %s, perrno %d\n",
i40e_stat_str(hw, status), perrno); i40e_stat_str(hw, status), perrno);
/* /*
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