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MdeModulePkg/NvmExpressDxe: Expose EFI_NVM_EXPRESS_PASS_THRU protocol

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This patch produces a EFI_NVM_EXPRESS_PASS_THRU protocol instance
on device handle to provide upper user a way to send cmd to NVMe
device.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17286 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Feng Tian
2015-05-04 11:08:09 +00:00
committed by erictian
parent 04789f89d5
commit d6c5598941
7 changed files with 324 additions and 651 deletions
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243
MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c
View File

@@ -16,23 +16,6 @@
#include "NvmExpress.h"
//
// Page size should be set in the Controller Configuration register
// during controller init, and the controller configuration save in
// the controller's private data. The Max and Min supported page sizes
// for the controller are specified in the Controller Capabilities register.
//
GLOBAL_REMOVE_IF_UNREFERENCED NVM_EXPRESS_PASS_THRU_MODE gNvmExpressPassThruMode = {
0,
NVM_EXPRESS_PASS_THRU_ATTRIBUTES_PHYSICAL | NVM_EXPRESS_PASS_THRU_ATTRIBUTES_CMD_SET_NVME,
sizeof (UINTN),
0x10000,
0,
0
};
/**
Dump the execution status from a given completion queue entry.
@@ -335,21 +318,19 @@ EXIT:
/**
Sends an NVM Express Command Packet to an NVM Express controller or namespace. This function supports
both blocking I/O and nonblocking I/O. The blocking I/O functionality is required, and the nonblocking
both blocking I/O and non-blocking I/O. The blocking I/O functionality is required, and the non-blocking
I/O functionality is optional.
@param[in] This A pointer to the NVM_EXPRESS_PASS_THRU_PROTOCOL instance.
@param[in] NamespaceId Is a 32 bit Namespace ID to which the Express HCI command packet will be sent.
A value of 0 denotes the NVM Express controller, a value of all 0FFh in the namespace
ID specifies that the command packet should be sent to all valid namespaces.
@param[in] NamespaceUuid Is a 64 bit Namespace UUID to which the Express HCI command packet will be sent.
A value of 0 denotes the NVM Express controller, a value of all 0FFh in the namespace
UUID specifies that the command packet should be sent to all valid namespaces.
@param[in,out] Packet A pointer to the NVM Express HCI Command Packet to send to the NVMe namespace specified
by NamespaceId.
@param[in] Event If nonblocking I/O is not supported then Event is ignored, and blocking I/O is performed.
If Event is NULL, then blocking I/O is performed. If Event is not NULL and non blocking I/O
is supported, then nonblocking I/O is performed, and Event will be signaled when the NVM
@param[in] This A pointer to the EFI_NVM_EXPRESS_PASS_THRU_PROTOCOL instance.
@param[in] NamespaceId A 32 bit namespace ID as defined in the NVMe specification to which the NVM Express Command
Packet will be sent. A value of 0 denotes the NVM Express controller, a value of all 0xFF's
(all bytes are 0xFF) in the namespace ID specifies that the command packet should be sent to
all valid namespaces.
@param[in,out] Packet A pointer to the NVM Express Command Packet.
@param[in] Event If non-blocking I/O is not supported then Event is ignored, and blocking I/O is performed.
If Event is NULL, then blocking I/O is performed. If Event is not NULL and non-blocking I/O
is supported, then non-blocking I/O is performed, and Event will be signaled when the NVM
Express Command Packet completes.
@retval EFI_SUCCESS The NVM Express Command Packet was sent by the host. TransferLength bytes were transferred
@@ -359,20 +340,20 @@ EXIT:
@retval EFI_NOT_READY The NVM Express Command Packet could not be sent because the controller is not ready. The caller
may retry again later.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send the NVM Express Command Packet.
@retval EFI_INVALID_PARAMETER Namespace, or the contents of NVM_EXPRESS_PASS_THRU_COMMAND_PACKET are invalid. The NVM
@retval EFI_INVALID_PARAMETER NamespaceId or the contents of EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET are invalid. The NVM
Express Command Packet was not sent, so no additional status information is available.
@retval EFI_UNSUPPORTED The command described by the NVM Express Command Packet is not supported by the host adapter.
The NVM Express Command Packet was not sent, so no additional status information is available.
@retval EFI_UNSUPPORTED The command described by the NVM Express Command Packet is not supported by the NVM Express
controller. The NVM Express Command Packet was not sent so no additional status information
is available.
@retval EFI_TIMEOUT A timeout occurred while waiting for the NVM Express Command Packet to execute.
**/
EFI_STATUS
EFIAPI
NvmExpressPassThru (
IN NVM_EXPRESS_PASS_THRU_PROTOCOL *This,
IN EFI_NVM_EXPRESS_PASS_THRU_PROTOCOL *This,
IN UINT32 NamespaceId,
IN UINT64 NamespaceUuid,
IN OUT NVM_EXPRESS_PASS_THRU_COMMAND_PACKET *Packet,
IN OUT EFI_NVM_EXPRESS_PASS_THRU_COMMAND_PACKET *Packet,
IN EFI_EVENT Event OPTIONAL
)
{
@@ -381,7 +362,7 @@ NvmExpressPassThru (
EFI_PCI_IO_PROTOCOL *PciIo;
NVME_SQ *Sq;
NVME_CQ *Cq;
UINT8 Qid;
UINT8 QueueType;
UINT32 Bytes;
UINT16 Offset;
EFI_EVENT TimerEvent;
@@ -403,11 +384,11 @@ NvmExpressPassThru (
return EFI_INVALID_PARAMETER;
}
if ((Packet->NvmeCmd == NULL) || (Packet->NvmeResponse == NULL)) {
if ((Packet->NvmeCmd == NULL) || (Packet->NvmeCompletion == NULL)) {
return EFI_INVALID_PARAMETER;
}
if (Packet->QueueId != NVME_ADMIN_QUEUE && Packet->QueueId != NVME_IO_QUEUE) {
if (Packet->QueueType != NVME_ADMIN_QUEUE && Packet->QueueType != NVME_IO_QUEUE) {
return EFI_INVALID_PARAMETER;
}
@@ -422,18 +403,18 @@ NvmExpressPassThru (
TimerEvent = NULL;
Status = EFI_SUCCESS;
Qid = Packet->QueueId;
Sq = Private->SqBuffer[Qid] + Private->SqTdbl[Qid].Sqt;
Cq = Private->CqBuffer[Qid] + Private->CqHdbl[Qid].Cqh;
QueueType = Packet->QueueType;
Sq = Private->SqBuffer[QueueType] + Private->SqTdbl[QueueType].Sqt;
Cq = Private->CqBuffer[QueueType] + Private->CqHdbl[QueueType].Cqh;
if (Packet->NvmeCmd->Nsid != NamespaceId) {
return EFI_INVALID_PARAMETER;
}
ZeroMem (Sq, sizeof (NVME_SQ));
Sq->Opc = Packet->NvmeCmd->Cdw0.Opcode;
Sq->Fuse = Packet->NvmeCmd->Cdw0.FusedOperation;
Sq->Cid = Packet->NvmeCmd->Cdw0.Cid;
Sq->Opc = (UINT8)Packet->NvmeCmd->Cdw0.Opcode;
Sq->Fuse = (UINT8)Packet->NvmeCmd->Cdw0.FusedOperation;
Sq->Cid = Private->Cid[QueueType]++;
Sq->Nsid = Packet->NvmeCmd->Nsid;
//
@@ -519,6 +500,12 @@ NvmExpressPassThru (
Sq->Prp[1] = (Sq->Prp[0] + EFI_PAGE_SIZE) & ~(EFI_PAGE_SIZE - 1);
}
if(Packet->NvmeCmd->Flags & CDW2_VALID) {
Sq->Rsvd2 = (UINT64)Packet->NvmeCmd->Cdw2;
}
if(Packet->NvmeCmd->Flags & CDW3_VALID) {
Sq->Rsvd2 |= LShiftU64 ((UINT64)Packet->NvmeCmd->Cdw3, 32);
}
if(Packet->NvmeCmd->Flags & CDW10_VALID) {
Sq->Payload.Raw.Cdw10 = Packet->NvmeCmd->Cdw10;
}
@@ -541,13 +528,13 @@ NvmExpressPassThru (
//
// Ring the submission queue doorbell.
//
Private->SqTdbl[Qid].Sqt ^= 1;
Data = ReadUnaligned32 ((UINT32*)&Private->SqTdbl[Qid]);
Private->SqTdbl[QueueType].Sqt ^= 1;
Data = ReadUnaligned32 ((UINT32*)&Private->SqTdbl[QueueType]);
PciIo->Mem.Write (
PciIo,
EfiPciIoWidthUint32,
NVME_BAR,
NVME_SQTDBL_OFFSET(Qid, Private->Cap.Dstrd),
NVME_SQTDBL_OFFSET(QueueType, Private->Cap.Dstrd),
1,
&Data
);
@@ -566,7 +553,6 @@ NvmExpressPassThru (
Status = gBS->SetTimer(TimerEvent, TimerRelative, Packet->CommandTimeout);
if (EFI_ERROR(Status)) {
Packet->ControllerStatus = NVM_EXPRESS_STATUS_CONTROLLER_DEVICE_ERROR;
goto EXIT;
}
@@ -574,23 +560,21 @@ NvmExpressPassThru (
// Wait for completion queue to get filled in.
//
Status = EFI_TIMEOUT;
Packet->ControllerStatus = NVM_EXPRESS_STATUS_CONTROLLER_TIMEOUT_COMMAND;
while (EFI_ERROR (gBS->CheckEvent (TimerEvent))) {
if (Cq->Pt != Private->Pt[Qid]) {
if (Cq->Pt != Private->Pt[QueueType]) {
Status = EFI_SUCCESS;
Packet->ControllerStatus = NVM_EXPRESS_STATUS_CONTROLLER_READY;
break;
}
}
if ((Private->CqHdbl[Qid].Cqh ^= 1) == 0) {
Private->Pt[Qid] ^= 1;
if ((Private->CqHdbl[QueueType].Cqh ^= 1) == 0) {
Private->Pt[QueueType] ^= 1;
}
//
// Copy the Respose Queue entry for this command to the callers response buffer
//
CopyMem(Packet->NvmeResponse, Cq, sizeof(NVM_EXPRESS_RESPONSE));
CopyMem(Packet->NvmeCompletion, Cq, sizeof(EFI_NVM_EXPRESS_COMPLETION));
//
// Dump every completion entry status for debugging.
@@ -599,12 +583,12 @@ NvmExpressPassThru (
NvmeDumpStatus(Cq);
DEBUG_CODE_END();
Data = ReadUnaligned32 ((UINT32*)&Private->CqHdbl[Qid]);
Data = ReadUnaligned32 ((UINT32*)&Private->CqHdbl[QueueType]);
PciIo->Mem.Write (
PciIo,
EfiPciIoWidthUint32,
NVME_BAR,
NVME_CQHDBL_OFFSET(Qid, Private->Cap.Dstrd),
NVME_CQHDBL_OFFSET(QueueType, Private->Cap.Dstrd),
1,
&Data
);
@@ -642,47 +626,43 @@ EXIT:
}
/**
Used to retrieve the list of namespaces defined on an NVM Express controller.
Used to retrieve the next namespace ID for this NVM Express controller.
The NVM_EXPRESS_PASS_THRU_PROTOCOL.GetNextNamespace() function retrieves a list of namespaces
defined on an NVM Express controller. If on input a NamespaceID is specified by all 0xFF in the
namespace buffer, then the first namespace defined on the NVM Express controller is returned in
NamespaceID, and a status of EFI_SUCCESS is returned.
The EFI_NVM_EXPRESS_PASS_THRU_PROTOCOL.GetNextNamespace() function retrieves the next valid
namespace ID on this NVM Express controller.
If NamespaceId is a Namespace value that was returned on a previous call to GetNextNamespace(),
then the next valid NamespaceId for an NVM Express SSD namespace on the NVM Express controller
is returned in NamespaceId, and EFI_SUCCESS is returned.
If on input the value pointed to by NamespaceId is 0xFFFFFFFF, then the first valid namespace
ID defined on the NVM Express controller is returned in the location pointed to by NamespaceId
and a status of EFI_SUCCESS is returned.
If Namespace array is not a 0xFFFFFFFF and NamespaceId was not returned on a previous call to
GetNextNamespace(), then EFI_INVALID_PARAMETER is returned.
If on input the value pointed to by NamespaceId is an invalid namespace ID other than 0xFFFFFFFF,
then EFI_INVALID_PARAMETER is returned.
If NamespaceId is the NamespaceId of the last SSD namespace on the NVM Express controller, then
EFI_NOT_FOUND is returned
If on input the value pointed to by NamespaceId is a valid namespace ID, then the next valid
namespace ID on the NVM Express controller is returned in the location pointed to by NamespaceId,
and EFI_SUCCESS is returned.
@param[in] This A pointer to the NVM_EXPRESS_PASS_THRU_PROTOCOL instance.
If the value pointed to by NamespaceId is the namespace ID of the last namespace on the NVM
Express controller, then EFI_NOT_FOUND is returned.
@param[in] This A pointer to the EFI_NVM_EXPRESS_PASS_THRU_PROTOCOL instance.
@param[in,out] NamespaceId On input, a pointer to a legal NamespaceId for an NVM Express
namespace present on the NVM Express controller. On output, a
pointer to the next NamespaceId of an NVM Express namespace on
an NVM Express controller. An input value of 0xFFFFFFFF retrieves
the first NamespaceId for an NVM Express namespace present on an
NVM Express controller.
@param[out] NamespaceUuid On output, the UUID associated with the next namespace, if a UUID
is defined for that NamespaceId, otherwise, zero is returned in
this parameter. If the caller does not require a UUID, then a NULL
pointer may be passed.
@retval EFI_SUCCESS The NamespaceId of the next Namespace was returned.
@retval EFI_SUCCESS The Namespace ID of the next Namespace was returned.
@retval EFI_NOT_FOUND There are no more namespaces defined on this controller.
@retval EFI_INVALID_PARAMETER Namespace array is not a 0xFFFFFFFF and NamespaceId was not returned
on a previous call to GetNextNamespace().
@retval EFI_INVALID_PARAMETER NamespaceId is an invalid value other than 0xFFFFFFFF.
**/
EFI_STATUS
EFIAPI
NvmExpressGetNextNamespace (
IN NVM_EXPRESS_PASS_THRU_PROTOCOL *This,
IN OUT UINT32 *NamespaceId,
OUT UINT64 *NamespaceUuid OPTIONAL
IN EFI_NVM_EXPRESS_PASS_THRU_PROTOCOL *This,
IN OUT UINT32 *NamespaceId
)
{
NVME_CONTROLLER_PRIVATE_DATA *Private;
@@ -721,9 +701,6 @@ NvmExpressGetNextNamespace (
}
*NamespaceId = NextNamespaceId;
if (NamespaceUuid != NULL) {
*NamespaceUuid = NamespaceData->Eui64;
}
} else {
if (*NamespaceId >= Private->ControllerData->Nn) {
return EFI_INVALID_PARAMETER;
@@ -744,9 +721,6 @@ NvmExpressGetNextNamespace (
}
*NamespaceId = NextNamespaceId;
if (NamespaceUuid != NULL) {
*NamespaceUuid = NamespaceData->Eui64;
}
}
Done:
@@ -758,41 +732,40 @@ Done:
}
/**
Used to translate a device path node to a Namespace ID and Namespace UUID.
Used to translate a device path node to a namespace ID.
The NVM_EXPRESS_PASS_THRU_PROTOCOL.GetNamwspace() function determines the Namespace ID and Namespace UUID
associated with the NVM Express SSD namespace described by DevicePath. If DevicePath is a device path node type
that the NVM Express Pass Thru driver supports, then the NVM Express Pass Thru driver will attempt to translate
the contents DevicePath into a Namespace ID and UUID. If this translation is successful, then that Namespace ID
and UUID are returned in NamespaceID and NamespaceUUID, and EFI_SUCCESS is returned.
The EFI_NVM_EXPRESS_PASS_THRU_PROTOCOL.GetNamespace() function determines the namespace ID associated with the
namespace described by DevicePath.
@param[in] This A pointer to the NVM_EXPRESS_PASS_THRU_PROTOCOL instance.
If DevicePath is a device path node type that the NVM Express Pass Thru driver supports, then the NVM Express
Pass Thru driver will attempt to translate the contents DevicePath into a namespace ID.
If this translation is successful, then that namespace ID is returned in NamespaceId, and EFI_SUCCESS is returned
@param[in] This A pointer to the EFI_NVM_EXPRESS_PASS_THRU_PROTOCOL instance.
@param[in] DevicePath A pointer to the device path node that describes an NVM Express namespace on
the NVM Express controller.
@param[out] NamespaceId The NVM Express namespace ID contained in the device path node.
@param[out] NamespaceUuid The NVM Express namespace contained in the device path node.
@retval EFI_SUCCESS DevicePath was successfully translated to NamespaceId and NamespaceUuid.
@retval EFI_INVALID_PARAMETER If DevicePath, NamespaceId, or NamespaceUuid are NULL, then EFI_INVALID_PARAMETER
is returned.
@retval EFI_SUCCESS DevicePath was successfully translated to NamespaceId.
@retval EFI_INVALID_PARAMETER If DevicePath or NamespaceId are NULL, then EFI_INVALID_PARAMETER is returned.
@retval EFI_UNSUPPORTED If DevicePath is not a device path node type that the NVM Express Pass Thru driver
supports, then EFI_UNSUPPORTED is returned.
@retval EFI_NOT_FOUND If DevicePath is a device path node type that the Nvm Express Pass Thru driver
supports, but there is not a valid translation from DevicePath to a NamespaceID
and NamespaceUuid, then EFI_NOT_FOUND is returned.
@retval EFI_NOT_FOUND If DevicePath is a device path node type that the NVM Express Pass Thru driver
supports, but there is not a valid translation from DevicePath to a namespace ID,
then EFI_NOT_FOUND is returned.
**/
EFI_STATUS
EFIAPI
NvmExpressGetNamespace (
IN NVM_EXPRESS_PASS_THRU_PROTOCOL *This,
IN EFI_NVM_EXPRESS_PASS_THRU_PROTOCOL *This,
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
OUT UINT32 *NamespaceId,
OUT UINT64 *NamespaceUuid
OUT UINT32 *NamespaceId
)
{
NVME_NAMESPACE_DEVICE_PATH *Node;
if ((This == NULL) || (DevicePath == NULL) || (NamespaceId == NULL) || (NamespaceUuid == NULL)) {
if ((This == NULL) || (DevicePath == NULL) || (NamespaceId == NULL)) {
return EFI_INVALID_PARAMETER;
}
@@ -807,8 +780,7 @@ NvmExpressGetNamespace (
return EFI_NOT_FOUND;
}
*NamespaceId = Node->NamespaceId;
*NamespaceUuid = Node->NamespaceUuid;
*NamespaceId = Node->NamespaceId;
return EFI_SUCCESS;
} else {
@@ -819,10 +791,10 @@ NvmExpressGetNamespace (
/**
Used to allocate and build a device path node for an NVM Express namespace on an NVM Express controller.
The NVM_EXPRESS_PASS_THRU_PROTOCOL.BuildDevicePath() function allocates and builds a single device
The EFI_NVM_EXPRESS_PASS_THRU_PROTOCOL.BuildDevicePath() function allocates and builds a single device
path node for the NVM Express namespace specified by NamespaceId.
If the namespace device specified by NamespaceId is not valid , then EFI_NOT_FOUND is returned.
If the NamespaceId is not valid, then EFI_NOT_FOUND is returned.
If DevicePath is NULL, then EFI_INVALID_PARAMETER is returned.
@@ -831,12 +803,10 @@ NvmExpressGetNamespace (
Otherwise, DevicePath is allocated with the boot service AllocatePool(), the contents of DevicePath are
initialized to describe the NVM Express namespace specified by NamespaceId, and EFI_SUCCESS is returned.
@param[in] This A pointer to the NVM_EXPRESS_PASS_THRU_PROTOCOL instance.
@param[in] This A pointer to the EFI_NVM_EXPRESS_PASS_THRU_PROTOCOL instance.
@param[in] NamespaceId The NVM Express namespace ID for which a device path node is to be
allocated and built. Caller must set the NamespaceId to zero if the
device path node will contain a valid UUID.
@param[in] NamespaceUuid The NVM Express namespace UUID for which a device path node is to be
allocated and built. UUID will only be valid of the Namespace ID is zero.
@param[in,out] DevicePath A pointer to a single device path node that describes the NVM Express
namespace specified by NamespaceId. This function is responsible for
allocating the buffer DevicePath with the boot service AllocatePool().
@@ -844,8 +814,7 @@ NvmExpressGetNamespace (
is finished with DevicePath.
@retval EFI_SUCCESS The device path node that describes the NVM Express namespace specified
by NamespaceId was allocated and returned in DevicePath.
@retval EFI_NOT_FOUND The NVM Express namespace specified by NamespaceId does not exist on the
NVM Express controller.
@retval EFI_NOT_FOUND The NamespaceId is not valid.
@retval EFI_INVALID_PARAMETER DevicePath is NULL.
@retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate the DevicePath node.
@@ -853,13 +822,15 @@ NvmExpressGetNamespace (
EFI_STATUS
EFIAPI
NvmExpressBuildDevicePath (
IN NVM_EXPRESS_PASS_THRU_PROTOCOL *This,
IN EFI_NVM_EXPRESS_PASS_THRU_PROTOCOL *This,
IN UINT32 NamespaceId,
IN UINT64 NamespaceUuid,
IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
)
{
NVME_NAMESPACE_DEVICE_PATH *Node;
NVME_CONTROLLER_PRIVATE_DATA *Private;
EFI_STATUS Status;
NVME_ADMIN_NAMESPACE_DATA *NamespaceData;
//
// Validate parameters
@@ -872,8 +843,10 @@ NvmExpressBuildDevicePath (
return EFI_NOT_FOUND;
}
Node = (NVME_NAMESPACE_DEVICE_PATH *)AllocateZeroPool (sizeof (NVME_NAMESPACE_DEVICE_PATH));
Status = EFI_SUCCESS;
Private = NVME_CONTROLLER_PRIVATE_DATA_FROM_PASS_THRU (This);
Node = (NVME_NAMESPACE_DEVICE_PATH *)AllocateZeroPool (sizeof (NVME_NAMESPACE_DEVICE_PATH));
if (Node == NULL) {
return EFI_OUT_OF_RESOURCES;
}
@@ -882,9 +855,43 @@ NvmExpressBuildDevicePath (
Node->Header.SubType = MSG_NVME_NAMESPACE_DP;
SetDevicePathNodeLength (&Node->Header, sizeof (NVME_NAMESPACE_DEVICE_PATH));
Node->NamespaceId = NamespaceId;
Node->NamespaceUuid = NamespaceUuid;
//
// Allocate a buffer for Identify Namespace data.
//
NamespaceData = NULL;
NamespaceData = AllocateZeroPool(sizeof (NVME_ADMIN_NAMESPACE_DATA));
if(NamespaceData == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
//
// Get UUID from specified Identify Namespace data.
//
Status = NvmeIdentifyNamespace (
Private,
NamespaceId,
(VOID *)NamespaceData
);
if (EFI_ERROR(Status)) {
goto Exit;
}
Node->NamespaceUuid = NamespaceData->Eui64;
*DevicePath = (EFI_DEVICE_PATH_PROTOCOL *)Node;
return EFI_SUCCESS;
Exit:
if(NamespaceData != NULL) {
FreePool (NamespaceData);
}
if (EFI_ERROR (Status)) {
FreePool (Node);
}
return Status;
}