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369 lines (350 loc) · 13.6 KB
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diff --git a/ftl_config.c b/ftl_config.c
index 1669ed3..d17ca89 100644
--- a/ftl_config.c
+++ b/ftl_config.c
@@ -94,6 +94,10 @@ void InitFTL()
else
storageCapacity_L = (MB_PER_SSD - (MB_PER_MIN_FREE_BLOCK_SPACE + MB_PER_OVER_PROVISION_BLOCK_SPACE)) * ((1024*1024) / BYTES_PER_NVME_BLOCK);
+ xil_printf("%s:%d CH %u (%u) WAY %u (%u)\r\n", __func__, __LINE__,
+ USER_CHANNELS, NSC_MAX_CHANNELS,
+ USER_WAYS, NSC_MAX_WAYS);
+
xil_printf("[ storage capacity %d MB ]\r\n", storageCapacity_L / ((1024*1024) / BYTES_PER_NVME_BLOCK));
xil_printf("[%d Byte/data region of page]\r\n", BYTES_PER_DATA_REGION_OF_PAGE);
xil_printf("[ ftl configuration complete. ]\r\n");
diff --git a/ftl_config.h b/ftl_config.h
index b53cc30..f34ef3e 100644
--- a/ftl_config.h
+++ b/ftl_config.h
@@ -201,10 +201,15 @@
//************************************************************************
#define BITS_PER_FLASH_CELL SLC_MODE //user configurable factor
-#define USER_BLOCKS_PER_LUN 32 //user configurable factor
-//LUN == PLANE. 코스모스 보드의 경우, CHIP 하나에 한 개의 DIE가 존재하고 DIE 안에 하나의 LUN이 존재함.
-//위의 변수는 LUN 하나에 속한 BLOCK의 수 즉, CHIP하나에 들어갈 BLOCK의 수를 정하는 변수
-#define USER_CHANNELS (NUMBER_OF_CONNECTED_CHANNEL) //user configurable factor
+#define USER_BLOCKS_PER_LUN 577 //user configurable factor
+// 32 = 1.73GiB
+// 580 = 33.1GiB (8683520)
+// 572 = 32.1GiB
+//LUN == PLANE. 占쌘쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙 占쏙옙占, CHIP 占싹놂옙占쏙옙 占쏙옙 占쏙옙占쏙옙 DIE占쏙옙 占쏙옙占쏙옙占싹곤옙 DIE 占싫울옙 占싹놂옙占쏙옙 LUN占쏙옙 占쏙옙占쏙옙占쏙옙.
+//占쏙옙占쏙옙 占쏙옙占쏙옙占쏙옙 LUN 占싹놂옙占쏙옙 占쏙옙占쏙옙 BLOCK占쏙옙 占쏙옙 占쏙옙, CHIP占싹놂옙占쏙옙 占쏙옙載 BLOCK占쏙옙 占쏙옙占쏙옙 占쏙옙占싹댐옙 占쏙옙占쏙옙
+//#define USER_CHANNELS (NUMBER_OF_CONNECTED_CHANNEL) //user configurable factor
+//#define USER_WAYS 8 //user configurable factor
+#define USER_CHANNELS 4 //user configurable factor
#define USER_WAYS 8 //user configurable factor
//************************************************************************
diff --git a/garbage_collection.c b/garbage_collection.c
index 7328382..e20fe83 100644
--- a/garbage_collection.c
+++ b/garbage_collection.c
@@ -107,6 +107,8 @@ void GarbageCollection(unsigned int dieNo)
reqPoolPtr->reqPool[reqSlotTag].reqOpt.rowAddrDependencyCheck = REQ_OPT_ROW_ADDR_DEPENDENCY_CHECK;
reqPoolPtr->reqPool[reqSlotTag].reqOpt.blockSpace = REQ_OPT_BLOCK_SPACE_MAIN;
reqPoolPtr->reqPool[reqSlotTag].reqOpt.forceUnitAccess = REQ_OPT_FORCE_UNIT_ACCESS_OFF;
+ reqPoolPtr->reqPool[reqSlotTag].reqOpt.be_flush_req = 0;
+
reqPoolPtr->reqPool[reqSlotTag].dataBufInfo.entry = AllocateTempDataBuf(dieNo);
UpdateTempDataBufEntryInfoBlockingReq(reqPoolPtr->reqPool[reqSlotTag].dataBufInfo.entry, reqSlotTag);
reqPoolPtr->reqPool[reqSlotTag].nandInfo.virtualSliceAddr = virtualSliceAddr;
@@ -127,6 +129,8 @@ void GarbageCollection(unsigned int dieNo)
reqPoolPtr->reqPool[reqSlotTag].reqOpt.rowAddrDependencyCheck = REQ_OPT_ROW_ADDR_DEPENDENCY_CHECK;
reqPoolPtr->reqPool[reqSlotTag].reqOpt.blockSpace = REQ_OPT_BLOCK_SPACE_MAIN;
reqPoolPtr->reqPool[reqSlotTag].reqOpt.forceUnitAccess = REQ_OPT_FORCE_UNIT_ACCESS_OFF;
+ reqPoolPtr->reqPool[reqSlotTag].reqOpt.be_flush_req = 0;
+
reqPoolPtr->reqPool[reqSlotTag].dataBufInfo.entry = AllocateTempDataBuf(dieNo);
UpdateTempDataBufEntryInfoBlockingReq(reqPoolPtr->reqPool[reqSlotTag].dataBufInfo.entry, reqSlotTag);
reqPoolPtr->reqPool[reqSlotTag].nandInfo.virtualSliceAddr = FindFreeVirtualSliceForGc(dieNoForGcCopy, victimBlockNo);
diff --git a/nvme/nvme.h b/nvme/nvme.h
index feb9696..d1a3fa8 100644
--- a/nvme/nvme.h
+++ b/nvme/nvme.h
@@ -888,6 +888,21 @@ typedef struct _NVME_STATUS
NVME_IO_CQ_STATUS ioCqInfo[MAX_NUM_OF_IO_CQ];
} NVME_CONTEXT;
-
-
+struct io_flush_req {
+#define FLUSH_NONE 0
+#define FLUSH_READY 1
+#define FLUSH_PROGRESS 2
+ int state;
+ int count;
+ unsigned int tag;
+ unsigned int specific;
+ unsigned int status_field_word;
+};
+
+#define FLUSH_REQ_SIZE 10
+struct io_flush_queue {
+ int head;
+ int tail;
+ struct io_flush_req io_flush_req[FLUSH_REQ_SIZE];
+};
#endif //__NVME_H_
diff --git a/nvme/nvme_admin_cmd.c b/nvme/nvme_admin_cmd.c
index 33d8b5d..11e1c95 100644
--- a/nvme/nvme_admin_cmd.c
+++ b/nvme/nvme_admin_cmd.c
@@ -416,7 +416,6 @@ extern struct stats_ftl stats_ftl;
static void handle_get_stats(NVME_ADMIN_COMMAND *nvmeAdminCmd,
NVME_COMPLETION *nvmeCPL)
{
- int i;
unsigned int prp[2];
unsigned int diff = TEMPORARY_SPARE_DATA_BUFFER_BASE_ADDR % 4096;
unsigned int new_addr = TEMPORARY_SPARE_DATA_BUFFER_BASE_ADDR + (4096 - diff);
@@ -428,9 +427,7 @@ static void handle_get_stats(NVME_ADMIN_COMMAND *nvmeAdminCmd,
memset(p, 0x00, 4096);
memcpy(p, &stats_ftl, sizeof(struct stats_ftl)); // dest, src, size
- xil_printf("%s:%d call set_direct_tx_dma\r\n", __func__, __LINE__);
set_direct_tx_dma(new_addr, prp[1], prp[0], 4096);
- xil_printf("%s:%d call check_direct_tx_dma_done\r\n", __func__, __LINE__);
check_direct_tx_dma_done();
xil_printf("%s:%d call nvmeCPL set\r\n", __func__, __LINE__);
diff --git a/nvme/nvme_io_cmd.c b/nvme/nvme_io_cmd.c
index f31c849..0f4f910 100644
--- a/nvme/nvme_io_cmd.c
+++ b/nvme/nvme_io_cmd.c
@@ -62,6 +62,28 @@
#include "../request_transform.h"
#include "../share/share.h"
+struct io_flush_queue g_io_flush_queue;
+
+static void __set_flush_req(NVME_COMMAND *nvmeCmd)
+{
+ struct io_flush_req *flush_req;
+
+
+ flush_req = g_io_flush_queue.io_flush_req + g_io_flush_queue.head;
+ assert(!flush_req->state);
+
+ flush_req->state = FLUSH_READY;
+ flush_req->tag = nvmeCmd->cmdSlotTag;
+ flush_req->specific = 0;
+ flush_req->status_field_word = 0;
+ flush_req->count = 0;
+
+ g_io_flush_queue.head = (g_io_flush_queue.head + 1) %
+ FLUSH_REQ_SIZE;
+
+ assert(g_io_flush_queue.head != g_io_flush_queue.tail);
+}
+
void handle_nvme_io_read(unsigned int cmdSlotTag, NVME_IO_COMMAND *nvmeIOCmd, unsigned int qID)
{
IO_READ_COMMAND_DW12 readInfo12;
@@ -180,9 +202,7 @@ void handle_nvme_io_cmd(NVME_COMMAND *nvmeCmd)
case IO_NVM_FLUSH:
{
// xil_printf("IO Flush Command\r\n");
- nvmeCPL.dword[0] = 0;
- nvmeCPL.specific = 0x0;
- set_auto_nvme_cpl(nvmeCmd->cmdSlotTag, nvmeCPL.specific, nvmeCPL.statusFieldWord);
+ __set_flush_req(nvmeCmd);
break;
}
case IO_NVM_WRITE:
diff --git a/nvme/nvme_main.c b/nvme/nvme_main.c
index 837bdf3..50b339f 100644
--- a/nvme/nvme_main.c
+++ b/nvme/nvme_main.c
@@ -70,11 +70,50 @@
volatile NVME_CONTEXT g_nvmeTask;
+extern struct io_flush_queue g_io_flush_queue;
+
+static void __check_finish_flush_req(void)
+{
+ struct io_flush_req *flush_req;
+
+ flush_req = g_io_flush_queue.io_flush_req + g_io_flush_queue.tail;
+ assert(flush_req->state == FLUSH_PROGRESS);
+
+ if (!flush_req->count) {
+ set_auto_nvme_cpl(flush_req->tag, flush_req->specific,
+ flush_req->status_field_word);
+ flush_req->state = FLUSH_NONE;
+
+ g_io_flush_queue.tail = (g_io_flush_queue.tail + 1) %
+ FLUSH_REQ_SIZE;
+ }
+}
+
+static void init_flush_queue(void)
+{
+ int i = 0;
+
+ g_io_flush_queue.head = g_io_flush_queue.tail = 0;
+ for (i = 0; i < FLUSH_REQ_SIZE; i++) {
+ struct io_flush_req *flush_req;
+
+ flush_req = g_io_flush_queue.io_flush_req + i;
+
+ flush_req->state = FLUSH_NONE;
+ flush_req->count = 0;
+ flush_req->tag = 0;
+ flush_req->specific = 0;
+ flush_req->status_field_word = 0;
+ }
+}
+
void nvme_main()
{
unsigned int exeLlr;
unsigned int rstCnt = 0;
+ xil_printf("%s:%d flush queue reset\r\n", __func__, __LINE__);
+ init_flush_queue();
xil_printf("!!! Wait until FTL reset complete !!! \r\n");
InitFTL();
@@ -114,6 +153,7 @@ void nvme_main()
{
handle_nvme_io_cmd(&nvmeCmd);
ReqTransSliceToLowLevel();
+ process_flush_request();
exeLlr=0;
}
}
@@ -189,6 +229,8 @@ void nvme_main()
CheckDoneNvmeDmaReq();
SchedulingNandReq();
}
+ if (g_io_flush_queue.head != g_io_flush_queue.tail)
+ __check_finish_flush_req();
}
}
diff --git a/request_allocation.c b/request_allocation.c
index 1328ce5..8002e23 100644
--- a/request_allocation.c
+++ b/request_allocation.c
@@ -398,6 +398,21 @@ void PutToNandReqQ(unsigned int reqSlotTag, unsigned chNo, unsigned wayNo)
notCompletedNandReqCnt++;
}
+extern struct io_flush_queue g_io_flush_queue;
+static void __compl_req_for_flush_req(unsigned int reqSlotTag)
+{
+ if (reqPoolPtr->reqPool[reqSlotTag].reqOpt.be_flush_req) {
+ struct io_flush_req *flush_req;
+ flush_req = g_io_flush_queue.io_flush_req + g_io_flush_queue.tail;
+
+ assert(flush_req->state == FLUSH_PROGRESS);
+ assert(flush_req->count);
+
+ flush_req->count--;
+ reqPoolPtr->reqPool[reqSlotTag].reqOpt.be_flush_req = 0;
+ }
+}
+
void GetFromNandReqQ(unsigned int chNo, unsigned int wayNo, unsigned int reqStatus, unsigned int reqCode)
{
unsigned int reqSlotTag;
@@ -417,6 +432,8 @@ void GetFromNandReqQ(unsigned int chNo, unsigned int wayNo, unsigned int reqStat
nandReqQ[chNo][wayNo].tailReq = REQ_SLOT_TAG_NONE;
}
+ __compl_req_for_flush_req(reqSlotTag);
+
reqPoolPtr->reqPool[reqSlotTag].reqQueueType = REQ_QUEUE_TYPE_NONE;
nandReqQ[chNo][wayNo].reqCnt--;
notCompletedNandReqCnt--;
diff --git a/request_allocation.h b/request_allocation.h
index 366cc9b..1e34c41 100644
--- a/request_allocation.h
+++ b/request_allocation.h
@@ -80,6 +80,8 @@ void SelectiveGetFromNvmeDmaReqQ(unsigned int regSlotTag);
void PutToNandReqQ(unsigned int reqSlotTag, unsigned chNo, unsigned wayNo);
void GetFromNandReqQ(unsigned int chNo, unsigned int wayNo, unsigned int reqStatus, unsigned int reqCode);
+void process_flush_request(void);
+
extern P_REQ_POOL reqPoolPtr;
extern FREE_REQUEST_QUEUE freeReqQ;
extern SLICE_REQUEST_QUEUE sliceReqQ;
diff --git a/request_format.h b/request_format.h
index 8ca8c12..e11dd11 100644
--- a/request_format.h
+++ b/request_format.h
@@ -156,7 +156,8 @@ typedef struct _REQ_OPTION{
unsigned int rowAddrDependencyCheck : 1;
unsigned int forceUnitAccess : 1;
unsigned int blockSpace : 1;
- unsigned int reserved0 : 23;
+ unsigned int be_flush_req:1;
+ unsigned int reserved0 : 22;
} REQ_OPTION, *P_REQ_OPTION;
diff --git a/request_transform.c b/request_transform.c
index 2690202..153cfaa 100644
--- a/request_transform.c
+++ b/request_transform.c
@@ -275,6 +275,7 @@ void EvictDataBufEntry(unsigned int originReqSlotTag)
reqPoolPtr->reqPool[reqSlotTag].reqOpt.rowAddrDependencyCheck = REQ_OPT_ROW_ADDR_DEPENDENCY_CHECK;
reqPoolPtr->reqPool[reqSlotTag].reqOpt.blockSpace = REQ_OPT_BLOCK_SPACE_MAIN;
reqPoolPtr->reqPool[reqSlotTag].reqOpt.forceUnitAccess = reqPoolPtr->reqPool[originReqSlotTag].reqOpt.forceUnitAccess;
+ reqPoolPtr->reqPool[reqSlotTag].reqOpt.be_flush_req = 0;
reqPoolPtr->reqPool[reqSlotTag].nandInfo.virtualSliceAddr = virtualSliceAddr;
reqPoolPtr->reqPool[reqSlotTag].dataBufInfo.entry = dataBufEntry;
@@ -309,6 +310,7 @@ void DataReadFromNand(unsigned int originReqSlotTag)
reqPoolPtr->reqPool[reqSlotTag].reqOpt.rowAddrDependencyCheck = REQ_OPT_ROW_ADDR_DEPENDENCY_CHECK;
reqPoolPtr->reqPool[reqSlotTag].reqOpt.blockSpace = REQ_OPT_BLOCK_SPACE_MAIN;
reqPoolPtr->reqPool[reqSlotTag].reqOpt.forceUnitAccess = reqPoolPtr->reqPool[originReqSlotTag].reqOpt.forceUnitAccess;
+ reqPoolPtr->reqPool[reqSlotTag].reqOpt.be_flush_req = 0;
reqPoolPtr->reqPool[reqSlotTag].nandInfo.virtualSliceAddr = virtualSliceAddr;
reqPoolPtr->reqPool[reqSlotTag].dataBufInfo.entry = reqPoolPtr->reqPool[originReqSlotTag].dataBufInfo.entry;
@@ -788,3 +790,59 @@ void CheckDoneNvmeDmaReq()
reqSlotTag = prevReq;
}
}
+
+static void __clean_data_buf_entry(int entry)
+{
+ unsigned int reqSlotTag, virtualSliceAddr;
+
+ reqSlotTag = GetFromFreeReqQ();
+
+ virtualSliceAddr = AddrTransWrite(dataBufMapPtr->dataBuf[entry].logicalSliceAddr);
+
+ reqPoolPtr->reqPool[reqSlotTag].reqType = REQ_TYPE_NAND;
+ reqPoolPtr->reqPool[reqSlotTag].reqCode = REQ_CODE_WRITE;
+ reqPoolPtr->reqPool[reqSlotTag].nvmeCmdSlotTag = 0xffff;
+ reqPoolPtr->reqPool[reqSlotTag].qID = 0xffff;
+ reqPoolPtr->reqPool[reqSlotTag].cID = 0xffff;
+ reqPoolPtr->reqPool[reqSlotTag].logicalSliceAddr = dataBufMapPtr->dataBuf[entry].logicalSliceAddr;
+ reqPoolPtr->reqPool[reqSlotTag].reqOpt.dataBufFormat = REQ_OPT_DATA_BUF_ENTRY;
+ reqPoolPtr->reqPool[reqSlotTag].reqOpt.nandAddr = REQ_OPT_NAND_ADDR_VSA;
+ reqPoolPtr->reqPool[reqSlotTag].reqOpt.nandEcc = REQ_OPT_NAND_ECC_ON;
+ reqPoolPtr->reqPool[reqSlotTag].reqOpt.nandEccWarning = REQ_OPT_NAND_ECC_WARNING_ON;
+ reqPoolPtr->reqPool[reqSlotTag].reqOpt.rowAddrDependencyCheck = REQ_OPT_ROW_ADDR_DEPENDENCY_CHECK;
+ reqPoolPtr->reqPool[reqSlotTag].reqOpt.blockSpace = REQ_OPT_BLOCK_SPACE_MAIN;
+ reqPoolPtr->reqPool[reqSlotTag].reqOpt.forceUnitAccess = REQ_OPT_FORCE_UNIT_ACCESS_OFF;
+ reqPoolPtr->reqPool[reqSlotTag].reqOpt.be_flush_req = 1;
+
+ reqPoolPtr->reqPool[reqSlotTag].nandInfo.virtualSliceAddr = virtualSliceAddr;
+ reqPoolPtr->reqPool[reqSlotTag].dataBufInfo.entry = entry;
+ UpdateDataBufEntryInfoBlockingReq(entry, reqSlotTag);
+
+ SelectLowLevelReqQ(reqSlotTag);
+
+ dataBufMapPtr->dataBuf[entry].dirty = DATA_BUF_CLEAN;
+}
+
+extern struct io_flush_queue g_io_flush_queue;
+void process_flush_request(void)
+{
+ struct io_flush_req *flush_req;
+ int entry;
+
+ if (g_io_flush_queue.head == g_io_flush_queue.tail)
+ return;
+
+ flush_req = g_io_flush_queue.io_flush_req + g_io_flush_queue.tail;
+
+ if (flush_req->state == FLUSH_PROGRESS)
+ return;
+
+ flush_req->state = FLUSH_PROGRESS;
+
+ for (entry = 0; entry < AVAILABLE_DATA_BUFFER_ENTRY_COUNT; entry++) {
+ if (dataBufMapPtr->dataBuf[entry].dirty == DATA_BUF_DIRTY) {
+ __clean_data_buf_entry(entry);
+ flush_req->count++;
+ }
+ }
+}