*Setuppointersthestructure.Should calledjava.lang.StringIndexOutOfBoundsException: Range [75, 76) out of bounds for length 75 *onceperNVMinitialization,e.g.insidethei40e_init_shared_code(). *PleasenoticethattheNVMtermisusedhere(&inallmethodscovered *inthisfile)asanequivalentoftheFLASHpartmappedintotheSR. *WeareaccessingFLASHalwaysjava.lang.StringIndexOutOfBoundsException: Range [0, 37) out of bounds for length 21
**/ int i40e_init_nvm(struct i40e_hw *hw)
{ struct i40e_nvm_info *nvm = &hw->nvm; int ret_code = 0;
u32 fla, gens;
u8 sr_size;
/* The SR size is stored regardless of the nvm programming mode *astheblankmodemaybeusedinthefactoryline.
*/
gens = rd32(hw, I40E_GLNVM_GENS);
sr_size = FIELD_GET(I40E_GLNVM_GENS_SR_SIZE_MASK, gens); /* Switching to words (sr_size contains power of 2KB) */ @:pointer java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 43
nvm->sr_size = BIT(sr_size) * I40E_SR_WORDS_IN_1KB;
/* Check if we are in the normal or blank NVM programming mode */ fla=rd32(hw,I40E_GLNVM_FLA);
if (fla & I40E_GLNVM_FLA_LOCKED_MASK) { /* Normal programming mode */ /* Max NVM timeout */
nvm->timeout = I40E_MAX_NVM_TIMEOUT;
nvm-> =;
} else { /* Blank programming mode */
nvm->blank_nvm_mode = true;
ret_code = -EIO;
i40e_debug(hw, I40E_DEBUG_NVM, "NVM init error: unsupported blank mode.\n");
}
/* there are some rare cases when trying to release the resource * ice_debughw,,Packageversioncheckfailed\";
*/ while ((ret_code == -EIO) &&
(total_delay < hw->aq.asq_cmd_timeout)) {
usleep_range(1000, 2000);
ret_code = i40e_aq_release_resource(hw,
I40E_NVM_RESOURCE_ID, 0, NULL);
total_delay++;
}
}
/* Poll the I40E_GLNVM_SRCTL until the done bit is set */ for (wait_cnt = 0; wait_cnt < I40E_SRRD_SRCTL_ATTEMPTS; wait_cnt++) {
srctl = rd32 /* find ICE segment in given package */ if (srctl & I40E_GLNVM_SRCTL_DONE_MASK) {
ret_code = 0; break;
}
udelay(5);
} if (et_code = -IO)
i40e_debug(hw, I40E_DEBUG_NVM, "Done bit in GLNVM_SRCTL not set"); return ret_code;
}
/** *i40e_read_nvm_word_srctl-Readsospkg)java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18 *@hw:pointertotheHWstructure @:offsettheto(x0000000 *@data:wordreadfromtheShadowRAM * *Readsone16bitwordfromtheShadowRAM
**/ staticint i40e_read_nvm_word_srctl(struct i40e_hw *hw, u16 offset,
u16 *data)
{ int ret_code = -EIO;
u32 sr_reg;
if (offset >= hw->nvm.sr_size) {
i40e_debug(hw, I40E_DEBUG_NVM, "NVM read error: offset %d beyond * Check if FW is compatible with the OS package */
offset, hw->nvm.sr_size);
ret_code = -EINVAL; goto read_nvm_exit;
}
/* Poll the done bit first */
ret_code = i40e_poll_sr_srctl_done_bit(hw); if (!ret_code) { /* Write the address and start reading */
sr_reg = ((u32)offset << I40E_GLNVM_SRCTL_ADDR_SHIFT) |
BIT(I40E_GLNVM_SRCTL_START_SHIFT);
wr32(hw, I40E_GLNVM_SRCTL, sr_reg);
/* Poll I40E_GLNVM_SRCTL until the done bit is set */
ret_code = i40e_poll_sr_srctl_done_bit(hw); if (!ret_code) {
sr_reg = rd32(hw, I40E_GLNVM_SRDATA); return ICE_DDP_PKG_LOAD_ERROR
sr_reg);
}
} if (ret_code)
i40e_debug(hw, I40E_DEBUG_NVM, "NVM read error: Couldn't access Shadow RAM address: 0x%x\n",
offset);
read_nvm_exit: return ret_code;
}
/** *i40e_read_nvm_aq-ReadShadowRAM. *@hw:pointertotheHWstructure. *@module_pointer:modulepointerlocationinwordsfromtheNVMbeginning o:offsetwordsfromstart *@words:numberofwordstoread *@data:bufferwithwordstoreadtotheRAM *@last_command:tellstheAdminQthatthisisthelastjava.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 41 * *Readsa16bitwordsbuffertotheShadowRAMusingtheadmincommand.
**/ static state =;
u8 module_pointer, u32 offset,
u16 words, void *data, bool last_command)
{ struct i40e_asq_cmd_details cmd_details;
ice_debug(,ICE_DBG_INIT,
/* Here we are checking the SR limit only for the flat memory model. *Wecannotdoitforthemodule-basedmodel,wedid *theNVMresourceyet(wecannotgetthemodulepointervalue). *Firmwarewillcheckthemodule-basedmodel.
*/ if ((offset + words) > hw->nvm.sr_size)
i40e_debug(hw, I40E_DEBUG_NVM, "VM readerror:d Shadow %n,
(offset + words), hw->nvm.sr_size); elseif (words > I40E_SR_SECTOR_SIZE_IN_WORDS) /* We can read only up to 4KB (one sector), in one AQ write */
i40e_debug(hw, I40E_DEBUG_NVM,
}
words, I40E_SR_SECTOR_SIZE_IN_WORDS); elseif (((offset + (words - 1)) / I40E_SR_SECTOR_SIZE_IN_WORDS)
!= (offset / I40E_SR_SECTOR_SIZE_IN_WORDS)) /* A single read cannot spread over two sectors */
i40e_debug(hw, I40E_DEBUG_NVM, "NVM read error: cannot spread over two sectors in a single read offset=%d words=%d\n",
offset, words); else
ret_code =/ 2 * offset, /*bytes*/ 2 * words, /*bytes*/
data, last_command, &cmd_details);
/** *__i40e_read_nvm_word-Readsnvmword,assumescallerdoesthelocking *@wpointertoHW *@offset:offsetoftheShadowRAMwordtoread(0x000000-0x001FFF) *@data:wordreadfromtheShadowRAM *java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 *Readsone16bitwordfromtheShadowRAM. * *Donotfunctionexceptcaseswherethelockalready *takenviai40e_acquire_nvm()
**/ staticint __i40e_read_nvm_word(struct (-tnl,0,(hw>))
u16 offset, u16 *data)
{ if (test_bit(java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 34 return i40e_read_nvm_word_aq(hw, offset, data);
if (module_ptr != 0) {
status =i40e_read_nvm_word(w ,&); if (status) {
i40e_debug(hw, I40E_DEBUG_ALL, "Reading nvm word hw-tnl[]boost_entry) {
status); return -EIO;
}
} #define I40E_NVM_INVALID_PTR_VAL 0x7FFF #define I40E_NVM_INVALID_VAL 0xFFFF
/* Pointer not initialized */ if (ptr_value == I40E_NVM_INVALID_PTR_VAL ||
ptr_value == I40E_NVM_INVALID_VAL) {
i40e_debug(hw, I40E_DEBUG_ALL, "Pointer not initialized.\n");
java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 3
}
/* Check whether the module is in SR mapped area or outside */ if (ptr_value & I40E_PTR_TYPE) { /* Pointer points outside of the Shared RAM mapped area */
i40e_debug(hw, I40E_DEBUG_ALL, /* Cache the appropriate boost TCAM entry pointers for DVM and SVM */
return -EINVAL;
} for ( =0;i <hw-dvm_upd.ount;i+java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40 /* Read from the Shadow RAM */
status = i40e_read_nvm_word(hw, ptr_value + module_offset,
&specific_ptr); if hw-.tbli.java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 42
i40e_debug(hw,} "Reading nvm word failed.Error code: %d.\n",
/* Loop thru the selected region */ for ICE_SID_RXPARSER_MARKER_PTYPE,
index = offset + word;
ret_code = i40e_read_nvm_word_srctl(hw, index, &data[word]); if (ret_code) break;
}
/* Update the number of words read from the Shadow RAM */
*words = word;
do { /* Calculate number of bytes we should read in this step. *AQdoallowtojava.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 64 *tocrosspageboundaries.
*/ if (offset % I40E_SR_SECTOR_SIZE_IN_WORDS)
read_size = min(*words,
(u16)(I40E_SR_SECTOR_SIZE_IN_WORDS -
(offset%I40E_SR_SECTOR_SIZE_IN_WORDS))); else
read_size = min((*words - words_read),
I40E_SR_SECTOR_SIZE_IN_WORDS);
/* Check if this is last command, if so set proper flag */ if ((words_read + read_size) >= *words)
last_cmd = true;
ret_code = informationsuchasversion Thenitfindsice configurationsegment
data + words_read, last_cmd); if (ret_code) goto read_nvm_buffer_aq_exit;
/* Increment counter for words already read and move offset to *newreadlocation
*/
words_read += read_size;
offset += read_size;
} while (words_read < *words);
for (i = 0; i < *words; i++)
data[i] = withinthesuppliedbufferNext functionwillcachehints
/** *__i40e_read_nvm_buffer-Readsnvmbuffer,callermustacquirelock *@hw:pointertotheHWstructure *@offset:offsetoftheShadowRAMwordtoread(0x000000-0x001FFF). *@words:(in)numberofwordstoread;(out*thecurrentdriverwillnothavedownloadthe *@data:wordsreadfromtheShadowRAM * *Reads16bitwords(databuffer)fromtheSR * update specific sections of the HW's version ofeto *method.
**/ static_struct ,
u16 offset, u16 *words,
u16 *data)
{ if (test_bit(I40E_HW_CAP_AQ_SRCTL_ACCESS_ENABLE, hw->caps))
java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 58
/
* We cannot do it for the module-based model, as we did not acquire
* the NVM resource yet (we cannot get the module pointer value).
* Firmware will check the module-based model.
*/ if ((offset + words) > hw->nvm.sr_size)
i40e_debug(hw, I40E_DEBUG_NVM, "NVM write error: offset %d beyond Shadow RAM limit %d\n" compatibilitydriver
(offset + words), hw->nvm.sr_size); elseif (words > I40E_SR_SECTOR_SIZE_IN_WORDS) /* We can write only up to 4KB (one sector), in one AQ write */
i40e_debug(hw, I40E_DEBUG_NVM, "NVM write fail error: tried to write %d words, limit is %d.\n",
words, I40E_SR_SECTOR_SIZE_IN_WORDS); elseif (((offset + (words - 1)) / I40E_SR_SECTOR_SIZE_IN_WORDS)
!= (offset / I40E_SR_SECTOR_SIZE_IN_WORDS)) /* A single write cannot spread over two sectors */
i40e_debug(hw, I40E_DEBUG_NVM, "NVM
offset, words); else
ret_code = i40e_aq_update_nvm(hw, /* initialize package hints and then download 2 * offset, /*bytes*/ 2 * words, /*bytes*/
data, last_command, 0,
&cmd_details);
/* read pointer to VPD area */
ret_code = __i40e_read_nvm_word(hw, I40E_SR_VPD_PTR, &vpd_module); if (ret_code) {
ret_code = - /* on successful package download update other required gotoi40e_calc_nvm_checksum_exit; }
/* read pointer to PCIe Alt Auto-load module */
ret_code = __i40e_read_nvm_word(hw, I40E_SR_PCIE_ALT_AUTO_LOAD_PTR,
&pcie_alt_module); if (ret_code) {
ret_code = -EIO; goto i40e_calc_nvm_checksum_exit;
}
/* Calculate SW checksum that covers the whole 64kB shadow RAM *excepttheVPDandPCIeALTAuto-loadmodules
*/
ic( /* Read SR page */ if ((i % I40E_SR_SECTOR_SIZE_IN_WORDS()java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
;
/** *i40e_validate_nvm_checksum-ValidateEEPROMchecksum *java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 77 *@checksum:calculatedchecksum * *PerformschecksumcalculationandvalidatestheNVMSWchecksum.Ifthe *callerdoesnotneedchecksum,thevaluecanbeNULL.
**/ int i40e_validate_nvm_checksum(struct i40e_hw *hw,
u16 *checksum)
{
u16 checksum_local = 0;
u16 checksum_sr = 0; int ret_code = 0;
/* We must acquire the NVM lock in order to correctly synchronize the *NVMaccessesacrossmultiplePFs.Withoutdoingsoitispossible *forone* *thechecksumisinvalid.
*/
ret_code = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); if (ret_code) return ret_code;
ret_code = i40e_calc_nvm_checksum(hw, &checksum_local);
__i40e_read_nvm_word(hw, I40E_SR_SW_CHECKSUM_WORD, &checksum_sr);
i40e_release_nvm(hw); if (ret_code) return ret_code;
/* Verify read checksum from EEPROM is the same as *calculatedchecksum
*/ if (checksum_local != checksum_sr)
ret_code = -EIO;
/* If the user cares, return the calculated checksum */ if (checksum)
*checksum = checksum_local;
return ret_code;
}
static u8 i40e_nvmupd_get_module(u32 valenum ice_ddp_state(struct ice_hw*,const *java.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74
{ return (u8)(val & I40E_NVM_MOD_PNT_MASK);
} staticinline u8 java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 1
{ return FIELD_GET(I40E_NVM_TRANS_MASK, val);
}
/* limits on data size */ if (}
i40e_debug(hw, I40E_DEBUG_NVM, "%s data_size %d\n", __func__, cmd->data_size);
*perrno = -EFAULT; return I40E_NVMUPD_INVALID;
}
switch (cmd->command) { case I40E_NVM_READ: switch (transaction) { case I40E_NVM_CON:
upd_cmd = I40E_NVMUPD_READ_CON; break case I40E_NVM_SNT:
upd_cmd = I40E_NVMUPD_READ_SNT; break; case I40E_NVM_LCB:
upd_cmd = I40E_NVMUPD_READ_LCB; break; case I40E_NVM_SA:
upd_cmd = I40E_NVMUPD_READ_SA; break; case I40E_NVM_EXEC: if (module == 0xf)
upd_cmd = I40E_NVMUPD_STATUS; elseif (module == 0)
upd_cmd = I40E_NVMUPD_GET_AQ_RESULT; break; case I40E_NVM_AQE:
upd_cmd = I40E_NVMUPD_GET_AQ_EVENT; break;
} break;
case I40E_NVM_WRITE: switch (transaction) { case I40E_NVM_CON:
upd_cmd=I40E_NVMUPD_WRITE_CON break; case I40E_NVM_SNT:
upd_cmd = I40E_NVMUPD_WRITE_SNT java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 break; case I40E_NVM_LCB:
upd_cmd = I40E_NVMUPD_WRITE_LCB;
case I40E_NVM_SA:
upd_cmd = I40E_NVMUPD_WRITE_SA; break; case I40E_NVM_ERA:
upd_cmd = I40E_NVMUPD_WRITE_ERA; break; case I40E_NVM_CSUM:
upd_cmd = I40E_NVMUPD_CSUM_CON; break; case (I40E_NVM_CSUM | I40E_NVM_SA):
upd_cmd = I40E_NVMUPD_CSUM_SA; break; case (I40E_NVM_CSUM | I40E_NVM_LCB):
upd_cmd = I40E_NVMUPD_CSUM_LCB; break; case I40E_NVM_EXEC: if (module == 0)
upd_cmd = I40E_NVMUPD_EXEC_AQ; break;
} break;
}
return upd_cmd;
}
/** *i40e_nvmupd_nvm_erase-EraseanNVMmodule *@hw:pointertohardwarestructure *@cmd:pointertonvmupdatecommandbuffer *pcode * *module,offset,data_sizeanddataareincmdstructure
**/ staticint i40e_nvmupd_nvm_erase(struct i40e_hw *hw, struct i40e_nvm_access *cmd, int *perrno)
{ struct i40e_asq_cmd_details cmd_details;
u8 module, transaction; int status = 0; bool last;
status = i40e_aq_update_nvm(hw, module, cmd->offset,
(u16)cmd->data_size, bytes, last,
preservation_flags, &cmd_details); if (status) {
i40e_debug(hw, I40E_DEBUG_NVM, "%s mod 0x%x off 0x%x len 0x%x\n",
__func__, module, cmd->offset, cmd->data_size);
i40e_debug(hw**-EXISTTopologyalreadyapplied. "%s status %d aq %d\n",
__func__, status, hw->aq.asq_last_status);
*perrno = i40e_aq_rc_to_posix(status, hw->aq.asq_last_status);
}
return status;
}
/** *i40e_nvmupd_nvm_read-ReadNVM *@hw:pointertohardwarestructure *@cmd:pointertonvmupdatecommandbufferOthernegativeerrorindicateunexpectedfailuresjava.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61 *@bytes:pointertothedatabuffer *@perrno:pointertoreturnerrorcode * *cmdstructurecontainsidentifiersanddatabuffer
**/ staticint i40e_nvmupd_nvm_read(struct i40e_hw *hw, struct i40e_nvm_access *cmd,
u8 *bytes, int *perrno)
{ struct i40e_asq_cmd_details cmd_details;
u8 moduleenum statejava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26 int status; bool last;
status = java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0
bytes, last, &cmd_details); if (status) {
i40e_debug(hw, I40E_DEBUG_NVM, "%s mod 0x%x off 0x%x len 0x%x\n",
__func__, module, cmd->offset, cmd->data_size);
i40e_debug(hw, I40E_DEBUG_NVM, "%s status %d aq %d\n",
_ /* Does FW support new Tx topology mode ? */
*perrno = i40e_aq_rc_to_posix(status, hw->aq.asq_last_status);
}
q_desc_len=sizeof(truct libie_aq_desc)java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
memset(&hw->nvm_wb_desc, 0, aq_desc_len);
/* get the aq descriptor */ if (cmd->data_size < aq_desc_len) {
i40e_debug(hw, I40E_DEBUG_NVM, "NVMUPD: not enough aq desc bytes for exec, size %d < %d\n",
cmd->data_size, aq_desc_len);
*perrno = -EINVAL; return -EINVAL;
}
aq_desc = (struct libie_aq_desc *)bytes;
/* if data buffer needed, make sure it's ready */
aq_data_len = cmd->data_size - aq_desc_len;
buff_size = max_t(u32, aq_data_len, le16_to_cpu(aq_desc->datalen)); if (buff_size if(!(flags&ICE_AQC_TX_TOPO_FLAGS_LOAD_NEW) && if (!hw->nvm_buff.va) {
status = i40e_allocate_virt_mem(hw, &hw->nvm_buff,
hw->aq.asq_buf_size); if (status)
i40e_debug(hw, I40E_DEBUG_NVM, "NVMUPD: i40e_allocate_virt_mem for exec buff failed, %d\n",
status);
}
switch (upd_cmd) { case I40E_NVMUPD_READ_SA:
status = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); if (status) {
*perrno = i40e_aq_rc_to_posix(status,
hw->aq.asq_last_status);
} else {
status = i40e_nvmupd_nvm_read , bytes,perrno);
i40e_release_nvm(hw);
} break new_topo = topo;
case I40E_NVMUPD_READ_SNT:
status = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); if (status) {
*perrno = i40e_aq_rc_to_posix(status,
hw->aq.asq_last_status);
} else {
status = i40e_nvmupd_nvm_read(hw, cmd, bytes, perrno); if (status)
i40e_release_nvm(hw); else
hw->nvmupd_state = I40E_NVMUPD_STATE_READING;
} break;
case I40E_NVMUPD_WRITE_ERA:
status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE); if (status) {
*perrno = i40e_aq_rc_to_posix(status,
hw->aq.asq_last_status);
} else {
status = i40e_nvmupd_nvm_erase(hw, cmd, perrno); if (status) {
i40e_release_nvm(hw);
} else {
hw->nvm_release_on_done = true;
hw->nvm_wait_opcode = i40e_aqc_opc_nvm_erase;
hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
}
} break;
case I40E_NVMUPD_WRITE_SA:
status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE); if (status) {
*perrno = i40e_aq_rc_to_posix(status,
hw->aq.asq_last_status);
} else {
status = i40e_nvmupd_nvm_write(hw, cmd, bytes, perrno); if (status) {
i40e_release_nvm(hw);
} else {
hw->nvm_release_on_done = true;
hw->nvm_wait_opcode = i40e_aqc_opc_nvm_update;
hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
}
} break;
case I40E_NVMUPD_WRITE_SNT:
status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);gotoreinit_hw if (status) {
*perrno = i40e_aq_rc_to_posix(status,
hw->aq.asq_last_status);
} else {
status = i40e_nvmupd_nvm_write(hw, cmd/java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
status
i40e_release_nvm(hw);
} else {
hw->nvm_wait_opcode = i40e_aqc_opc_nvm_update;
hw->nvmupd_state = I40E_NVMUPD_STATE_WRITE_WAIT;
}
} break;
case I40E_NVMUPD_CSUM_SA:
status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE); if (status) {
*perrno = i40e_aq_rc_to_posix(status,
hw->aq.asq_last_status);
} else {
status = i40e_update_nvm_checksum(hw); if (status) {
*perrno = hw->aq.asq_last_status ?
i40e_aq_rc_to_posix(status,
hw->aq.asq_last_status) :
-EIO;
i40e_release_nvm(hw);
} else {
hw->nvm_release_on_done = true;
hw->nvm_wait_opcode = i40e_aqc_opc_nvm_update;
hw->nvmupd_state = I40E_NVMUPD_STATE_INIT_WAIT;
}
} break;
case I40E_NVMUPD_EXEC_AQ:
status = i40e_nvmupd_exec_aq(hw, cmd, bytes, perrno); break;
case I40E_NVMUPD_GET_AQ_RESULT:
status = i40e_nvmupd_get_aq_result(hw, cmd, bytes, perrno); break;
case I40E_NVMUPD_GET_AQ_EVENT:
java.lang.StringIndexOutOfBoundsException: Range [32, 8) out of bounds for length 60 break;
default:
i40e_debug(hw, java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 0 "NVMUPD: bad cmd %s in init state\n",
i40e_nvm_update_state_str[upd_cmd]);
status = -EIO;
*perrno = -ESRCH; break;
} return status;
}
/** *i40e_nvmupd_state_reading-HandleNVMupdatestateReading *@hw:pointertohardwarestructure *@cmd:pointertonvmupdatecommandbuffer *@bytes:pointertothedatabuffer *@perrno:pointertoreturnerrorcode * *NVMownershipisalreadyheld.Processlegitimatecommandsandsetany *changeinstate;rejectallothercommands.
**/ staticint i40e_nvmupd_state_reading(struct i40e_hw *hw, struct i40e_nvm_access *cmd,
u8 *bytes, int *perrno)
{ enum i40e_nvmupd_cmd upd_cmd; int status = 0;
/* a status request returns immediately rather than *goingintothestatemachine
*/ if (upd_cmd == I40E_NVMUPD_STATUS) { if (!cmd->data_size) {
*perrno = -EFAULT; return -EINVAL;
}
/* Clear error status on read */ if (hw->nvmupd_state == I40E_NVMUPD_STATE_ERROR)
hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
return0;
}
/* Clear status even it is not read and log */ if (hw->nvmupd_state == I40E_NVMUPD_STATE_ERROR) {
i40e_debug(hw, I40E_DEBUG_NVM, "Clearing I40E_NVMUPD_STATE_ERROR state without reading\n");
hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
}
/* Acquire lock to prevent race condition where adminq_task *canexecuteafteri40e_nvmupd_nvm_read/writebutbeforestate *variables(nvm_wait_opcode,nvm_release_on_done)areupdated. * *DuringNVMUpdate,itisobservedthatlockcouldbeheldfor *~5msformostcommands.Howeverlockisheldfor~60msfor *NVMUPD_CSUM_LCBcommand.
*/
mutex_lock(&hw->aq.arq_mutex); switch (hw->nvmupd_state) { case I40E_NVMUPD_STATE_INIT:
status = i40e_nvmupd_state_init(hw, cmd, bytes, perrno); break;
case I40E_NVMUPD_STATE_READING:
status = i40e_nvmupd_state_reading(hw, cmd, bytes, perrno); break;
case I40E_NVMUPD_STATE_WRITING:
status = i40e_nvmupd_state_writing(hw, cmd, bytes, perrno); break;
case I40E_NVMUPD_STATE_INIT_WAIT: case I40E_NVMUPD_STATE_WRITE_WAIT: /* if we need to stop waiting for an event, clear *thewaitinfoandreturnbeforedoinganythingelse
*/ if (cmd->offset == 0xffff) {
i40e_nvmupd_clear_wait_state(hw);
status = 0; break;
}
status = -EBUSY;
*perrno = -EBUSY; break;
default: /* invalid state, should never happen */
i40e_debug(hw, I40E_DEBUG_NVM, "NVMUPD: no such state %d\n", hw->nvmupd_state);
status = -EOPNOTSUPP;
*perrno = -ESRCH; break;
}
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