/**
* i40e_hmc_get_object_va - retrieves an object's virtual address
* @hw: pointer to the hw structure
* @object_base: pointer to u64 to get the va
* @rsrc_type: the hmc resource type
* @obj_idx: hmc object index
*
* This function retrieves the object's virtual address from the object
* base pointer. This function is used for LAN Queue contexts.
**/
static
enum i40e_status_code i40e_hmc_get_object_va(struct i40e_hw *hw,
u8 **object_base,
enum i40e_hmc_lan_rsrc_type rsrc_type,
u32 obj_idx)
{
u32 obj_offset_in_sd, obj_offset_in_pd;
struct i40e_hmc_info *hmc_info = &hw->hmc;
struct i40e_hmc_sd_entry *sd_entry;
struct i40e_hmc_pd_entry *pd_entry;
u32 pd_idx, pd_lmt, rel_pd_idx;
enum i40e_status_code ret_code = I40E_SUCCESS;
u64 obj_offset_in_fpm;
u32 sd_idx, sd_lmt;
if (NULL == hmc_info->hmc_obj) {
ret_code = I40E_ERR_BAD_PTR;
DEBUGOUT("i40e_hmc_get_object_va: bad hmc_info->hmc_obj ptr\n");
goto exit;
}
if (NULL == object_base) {
ret_code = I40E_ERR_BAD_PTR;
DEBUGOUT("i40e_hmc_get_object_va: bad object_base ptr\n");
goto exit;
}
if (I40E_HMC_INFO_SIGNATURE != hmc_info->signature) {
ret_code = I40E_ERR_BAD_PTR;
DEBUGOUT("i40e_hmc_get_object_va: bad hmc_info->signature\n");
goto exit;
}
if (obj_idx >= hmc_info->hmc_obj[rsrc_type].cnt) {
DEBUGOUT1("i40e_hmc_get_object_va: returns error %d\n",
ret_code);
ret_code = I40E_ERR_INVALID_HMC_OBJ_INDEX;
goto exit;
}
/* find sd index and limit */
I40E_FIND_SD_INDEX_LIMIT(hmc_info, rsrc_type, obj_idx, 1,
&sd_idx, &sd_lmt);
sd_entry = &hmc_info->sd_table.sd_entry[sd_idx];
obj_offset_in_fpm = hmc_info->hmc_obj[rsrc_type].base +
hmc_info->hmc_obj[rsrc_type].size * obj_idx;
if (I40E_SD_TYPE_PAGED == sd_entry->entry_type) {
I40E_FIND_PD_INDEX_LIMIT(hmc_info, rsrc_type, obj_idx, 1,
&pd_idx, &pd_lmt);
rel_pd_idx = pd_idx % I40E_HMC_PD_CNT_IN_SD;
pd_entry = &sd_entry->u.pd_table.pd_entry[rel_pd_idx];
obj_offset_in_pd = (u32)(obj_offset_in_fpm %
I40E_HMC_PAGED_BP_SIZE);
*object_base = (u8 *)pd_entry->bp.addr.va + obj_offset_in_pd;
} else {
obj_offset_in_sd = (u32)(obj_offset_in_fpm %
I40E_HMC_DIRECT_BP_SIZE);
*object_base = (u8 *)sd_entry->u.bp.addr.va + obj_offset_in_sd;
}
exit:
return ret_code;
}
/**
* i40e_delete_hmc_object - remove hmc objects
* @hw: pointer to the HW structure
* @info: pointer to i40e_hmc_delete_obj_info struct
*
* This will de-populate the SDs and PDs. It frees
* the memory for PDS and backing storage. After this function is returned,
* caller should deallocate memory allocated previously for
* book-keeping information about PDs and backing storage.
**/
enum i40e_status_code i40e_delete_lan_hmc_object(struct i40e_hw *hw,
struct i40e_hmc_lan_delete_obj_info *info)
{
enum i40e_status_code ret_code = I40E_SUCCESS;
struct i40e_hmc_pd_table *pd_table;
u32 pd_idx, pd_lmt, rel_pd_idx;
u32 sd_idx, sd_lmt;
u32 i, j;
if (NULL == info) {
ret_code = I40E_ERR_BAD_PTR;
DEBUGOUT("i40e_delete_hmc_object: bad info ptr\n");
goto exit;
}
if (NULL == info->hmc_info) {
ret_code = I40E_ERR_BAD_PTR;
DEBUGOUT("i40e_delete_hmc_object: bad info->hmc_info ptr\n");
goto exit;
}
if (I40E_HMC_INFO_SIGNATURE != info->hmc_info->signature) {
ret_code = I40E_ERR_BAD_PTR;
DEBUGOUT("i40e_delete_hmc_object: bad hmc_info->signature\n");
goto exit;
}
if (NULL == info->hmc_info->sd_table.sd_entry) {
ret_code = I40E_ERR_BAD_PTR;
DEBUGOUT("i40e_delete_hmc_object: bad sd_entry\n");
goto exit;
}
if (NULL == info->hmc_info->hmc_obj) {
ret_code = I40E_ERR_BAD_PTR;
DEBUGOUT("i40e_delete_hmc_object: bad hmc_info->hmc_obj\n");
goto exit;
}
if (info->start_idx >= info->hmc_info->hmc_obj[info->rsrc_type].cnt) {
ret_code = I40E_ERR_INVALID_HMC_OBJ_INDEX;
DEBUGOUT1("i40e_delete_hmc_object: returns error %d\n",
ret_code);
goto exit;
}
if ((info->start_idx + info->count) >
info->hmc_info->hmc_obj[info->rsrc_type].cnt) {
ret_code = I40E_ERR_INVALID_HMC_OBJ_COUNT;
DEBUGOUT1("i40e_delete_hmc_object: returns error %d\n",
ret_code);
goto exit;
}
I40E_FIND_PD_INDEX_LIMIT(info->hmc_info, info->rsrc_type,
info->start_idx, info->count, &pd_idx,
&pd_lmt);
for (j = pd_idx; j < pd_lmt; j++) {
sd_idx = j / I40E_HMC_PD_CNT_IN_SD;
if (I40E_SD_TYPE_PAGED !=
info->hmc_info->sd_table.sd_entry[sd_idx].entry_type)
continue;
rel_pd_idx = j % I40E_HMC_PD_CNT_IN_SD;
pd_table =
&info->hmc_info->sd_table.sd_entry[sd_idx].u.pd_table;
if (pd_table->pd_entry[rel_pd_idx].valid) {
ret_code = i40e_remove_pd_bp(hw, info->hmc_info, j);
if (I40E_SUCCESS != ret_code)
goto exit;
}
}
/* find sd index and limit */
I40E_FIND_SD_INDEX_LIMIT(info->hmc_info, info->rsrc_type,
info->start_idx, info->count,
&sd_idx, &sd_lmt);
if (sd_idx >= info->hmc_info->sd_table.sd_cnt ||
sd_lmt > info->hmc_info->sd_table.sd_cnt) {
ret_code = I40E_ERR_INVALID_SD_INDEX;
goto exit;
}
for (i = sd_idx; i < sd_lmt; i++) {
if (!info->hmc_info->sd_table.sd_entry[i].valid)
continue;
switch (info->hmc_info->sd_table.sd_entry[i].entry_type) {
case I40E_SD_TYPE_DIRECT:
ret_code = i40e_remove_sd_bp(hw, info->hmc_info, i);
if (I40E_SUCCESS != ret_code)
goto exit;
break;
case I40E_SD_TYPE_PAGED:
ret_code = i40e_remove_pd_page(hw, info->hmc_info, i);
if (I40E_SUCCESS != ret_code)
goto exit;
break;
default:
break;
}
}
exit:
return ret_code;
}
/**
* i40e_create_lan_hmc_object - allocate backing store for hmc objects
* @hw: pointer to the HW structure
* @info: pointer to i40e_hmc_create_obj_info struct
*
* This will allocate memory for PDs and backing pages and populate
* the sd and pd entries.
**/
enum i40e_status_code i40e_create_lan_hmc_object(struct i40e_hw *hw,
struct i40e_hmc_lan_create_obj_info *info)
{
enum i40e_status_code ret_code = I40E_SUCCESS;
struct i40e_hmc_sd_entry *sd_entry;
u32 pd_idx1 = 0, pd_lmt1 = 0;
u32 pd_idx = 0, pd_lmt = 0;
bool pd_error = false;
u32 sd_idx, sd_lmt;
u64 sd_size;
u32 i, j;
if (NULL == info) {
ret_code = I40E_ERR_BAD_PTR;
DEBUGOUT("i40e_create_lan_hmc_object: bad info ptr\n");
goto exit;
}
if (NULL == info->hmc_info) {
ret_code = I40E_ERR_BAD_PTR;
DEBUGOUT("i40e_create_lan_hmc_object: bad hmc_info ptr\n");
goto exit;
}
if (I40E_HMC_INFO_SIGNATURE != info->hmc_info->signature) {
ret_code = I40E_ERR_BAD_PTR;
DEBUGOUT("i40e_create_lan_hmc_object: bad signature\n");
goto exit;
}
if (info->start_idx >= info->hmc_info->hmc_obj[info->rsrc_type].cnt) {
ret_code = I40E_ERR_INVALID_HMC_OBJ_INDEX;
DEBUGOUT1("i40e_create_lan_hmc_object: returns error %d\n",
ret_code);
goto exit;
}
if ((info->start_idx + info->count) >
info->hmc_info->hmc_obj[info->rsrc_type].cnt) {
ret_code = I40E_ERR_INVALID_HMC_OBJ_COUNT;
DEBUGOUT1("i40e_create_lan_hmc_object: returns error %d\n",
ret_code);
goto exit;
}
/* find sd index and limit */
I40E_FIND_SD_INDEX_LIMIT(info->hmc_info, info->rsrc_type,
info->start_idx, info->count,
&sd_idx, &sd_lmt);
if (sd_idx >= info->hmc_info->sd_table.sd_cnt ||
sd_lmt > info->hmc_info->sd_table.sd_cnt) {
ret_code = I40E_ERR_INVALID_SD_INDEX;
goto exit;
}
/* find pd index */
I40E_FIND_PD_INDEX_LIMIT(info->hmc_info, info->rsrc_type,
info->start_idx, info->count, &pd_idx,
&pd_lmt);
/* This is to cover for cases where you may not want to have an SD with
* the full 2M memory but something smaller. By not filling out any
* size, the function will default the SD size to be 2M.
*/
if (info->direct_mode_sz == 0)
sd_size = I40E_HMC_DIRECT_BP_SIZE;
else
sd_size = info->direct_mode_sz;
/* check if all the sds are valid. If not, allocate a page and
* initialize it.
*/
for (j = sd_idx; j < sd_lmt; j++) {
/* update the sd table entry */
ret_code = i40e_add_sd_table_entry(hw, info->hmc_info, j,
info->entry_type,
sd_size);
if (I40E_SUCCESS != ret_code)
goto exit_sd_error;
sd_entry = &info->hmc_info->sd_table.sd_entry[j];
if (I40E_SD_TYPE_PAGED == sd_entry->entry_type) {
/* check if all the pds in this sd are valid. If not,
* allocate a page and initialize it.
*/
/* find pd_idx and pd_lmt in this sd */
pd_idx1 = max(pd_idx, (j * I40E_HMC_MAX_BP_COUNT));
pd_lmt1 = min(pd_lmt,
((j + 1) * I40E_HMC_MAX_BP_COUNT));
for (i = pd_idx1; i < pd_lmt1; i++) {
/* update the pd table entry */
ret_code = i40e_add_pd_table_entry(hw,
info->hmc_info,
i);
if (I40E_SUCCESS != ret_code) {
pd_error = true;
break;
}
}
if (pd_error) {
/* remove the backing pages from pd_idx1 to i */
while (i && (i > pd_idx1)) {
i40e_remove_pd_bp(hw, info->hmc_info,
(i - 1));
i--;
}
}
}
if (!sd_entry->valid) {
sd_entry->valid = true;
switch (sd_entry->entry_type) {
case I40E_SD_TYPE_PAGED:
I40E_SET_PF_SD_ENTRY(hw,
sd_entry->u.pd_table.pd_page_addr.pa,
j, sd_entry->entry_type);
break;
case I40E_SD_TYPE_DIRECT:
I40E_SET_PF_SD_ENTRY(hw, sd_entry->u.bp.addr.pa,
j, sd_entry->entry_type);
break;
default:
ret_code = I40E_ERR_INVALID_SD_TYPE;
goto exit;
}
}
}
goto exit;
exit_sd_error:
/* cleanup for sd entries from j to sd_idx */
while (j && (j > sd_idx)) {
sd_entry = &info->hmc_info->sd_table.sd_entry[j - 1];
switch (sd_entry->entry_type) {
case I40E_SD_TYPE_PAGED:
pd_idx1 = max(pd_idx,
((j - 1) * I40E_HMC_MAX_BP_COUNT));
pd_lmt1 = min(pd_lmt, (j * I40E_HMC_MAX_BP_COUNT));
for (i = pd_idx1; i < pd_lmt1; i++) {
i40e_remove_pd_bp(hw, info->hmc_info, i);
}
i40e_remove_pd_page(hw, info->hmc_info, (j - 1));
break;
case I40E_SD_TYPE_DIRECT:
i40e_remove_sd_bp(hw, info->hmc_info, (j - 1));
break;
default:
ret_code = I40E_ERR_INVALID_SD_TYPE;
break;
}
j--;
}
exit:
return ret_code;
}