cfn/computing-offload
Code Issues Proposed changes
79c4324644
computing-offload/generic_vdpa/qemu/pci-Let-ld-_pci_dma-propagate-MemTxResult.patch
jiangdongxu 79c4324644 add generic_vdpa basecode 
Change-Id: I2d302dda68298877c65c99147f5bf22186a59aac
2024-09-19 17:19:46 +08:00

293 lines
13 KiB
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Raw Blame History

From d7e2bb6bba0b5b77b296ca99b26c0d0a4db0d9f0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= <philmd@redhat.com>
Date: Fri, 17 Dec 2021 23:49:30 +0100
Subject: [PATCH 22/25] pci: Let ld*_pci_dma() propagate MemTxResult
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
ld*_dma() returns a MemTxResult type. Do not discard
it, return it to the caller.
Update the few callers.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-24-philmd@redhat.com>
---
hw/audio/intel-hda.c | 2 +-
hw/net/eepro100.c | 25 ++++++++++---------------
hw/net/tulip.c | 16 ++++++++--------
hw/scsi/megasas.c | 21 ++++++++++++---------
hw/scsi/mptsas.c | 16 +++++++++++-----
hw/scsi/vmw_pvscsi.c | 16 ++++++++++------
include/hw/pci/pci.h | 17 ++++++++---------
7 files changed, 60 insertions(+), 53 deletions(-)
diff --git a/hw/audio/intel-hda.c b/hw/audio/intel-hda.c
index e34b7ab0e9..2b55d52150 100644
--- a/hw/audio/intel-hda.c
+++ b/hw/audio/intel-hda.c
@@ -335,7 +335,7 @@ static void intel_hda_corb_run(IntelHDAState *d)
rp = (d->corb_rp + 1) & 0xff;
addr = intel_hda_addr(d->corb_lbase, d->corb_ubase);
- verb = ldl_le_pci_dma(&d->pci, addr + 4 * rp, MEMTXATTRS_UNSPECIFIED);
+ ldl_le_pci_dma(&d->pci, addr + 4 * rp, &verb, MEMTXATTRS_UNSPECIFIED);
d->corb_rp = rp;
dprint(d, 2, "%s: [rp 0x%x] verb 0x%08x\n", __func__, rp, verb);
diff --git a/hw/net/eepro100.c b/hw/net/eepro100.c
index 36dc1e22d7..9c178c1448 100644
--- a/hw/net/eepro100.c
+++ b/hw/net/eepro100.c
@@ -772,18 +772,16 @@ static void tx_command(EEPRO100State *s)
} else {
/* Flexible mode. */
uint8_t tbd_count = 0;
+ uint32_t tx_buffer_address;
+ uint16_t tx_buffer_size;
+ uint16_t tx_buffer_el;
+
if (s->has_extended_tcb_support && !(s->configuration[6] & BIT(4))) {
/* Extended Flexible TCB. */
for (; tbd_count < 2; tbd_count++) {
- uint32_t tx_buffer_address = ldl_le_pci_dma(&s->dev,
- tbd_address,
- attrs);
- uint16_t tx_buffer_size = lduw_le_pci_dma(&s->dev,
- tbd_address + 4,
- attrs);
- uint16_t tx_buffer_el = lduw_le_pci_dma(&s->dev,
- tbd_address + 6,
- attrs);
+ ldl_le_pci_dma(&s->dev, tbd_address, &tx_buffer_address, attrs);
+ lduw_le_pci_dma(&s->dev, tbd_address + 4, &tx_buffer_size, attrs);
+ lduw_le_pci_dma(&s->dev, tbd_address + 6, &tx_buffer_el, attrs);
tbd_address += 8;
TRACE(RXTX, logout
("TBD (extended flexible mode): buffer address 0x%08x, size 0x%04x\n",
@@ -799,12 +797,9 @@ static void tx_command(EEPRO100State *s)
}
tbd_address = tbd_array;
for (; tbd_count < s->tx.tbd_count; tbd_count++) {
- uint32_t tx_buffer_address = ldl_le_pci_dma(&s->dev, tbd_address,
- attrs);
- uint16_t tx_buffer_size = lduw_le_pci_dma(&s->dev, tbd_address + 4,
- attrs);
- uint16_t tx_buffer_el = lduw_le_pci_dma(&s->dev, tbd_address + 6,
- attrs);
+ ldl_le_pci_dma(&s->dev, tbd_address, &tx_buffer_address, attrs);
+ lduw_le_pci_dma(&s->dev, tbd_address + 4, &tx_buffer_size, attrs);
+ lduw_le_pci_dma(&s->dev, tbd_address + 6, &tx_buffer_el, attrs);
tbd_address += 8;
TRACE(RXTX, logout
("TBD (flexible mode): buffer address 0x%08x, size 0x%04x\n",
diff --git a/hw/net/tulip.c b/hw/net/tulip.c
index c76e4868f7..d5b6cc5ee6 100644
--- a/hw/net/tulip.c
+++ b/hw/net/tulip.c
@@ -73,15 +73,15 @@ static void tulip_desc_read(TULIPState *s, hwaddr p,
const MemTxAttrs attrs = MEMTXATTRS_UNSPECIFIED;
if (s->csr[0] & CSR0_DBO) {
- desc->status = ldl_be_pci_dma(&s->dev, p, attrs);
- desc->control = ldl_be_pci_dma(&s->dev, p + 4, attrs);
- desc->buf_addr1 = ldl_be_pci_dma(&s->dev, p + 8, attrs);
- desc->buf_addr2 = ldl_be_pci_dma(&s->dev, p + 12, attrs);
+ ldl_be_pci_dma(&s->dev, p, &desc->status, attrs);
+ ldl_be_pci_dma(&s->dev, p + 4, &desc->control, attrs);
+ ldl_be_pci_dma(&s->dev, p + 8, &desc->buf_addr1, attrs);
+ ldl_be_pci_dma(&s->dev, p + 12, &desc->buf_addr2, attrs);
} else {
- desc->status = ldl_le_pci_dma(&s->dev, p, attrs);
- desc->control = ldl_le_pci_dma(&s->dev, p + 4, attrs);
- desc->buf_addr1 = ldl_le_pci_dma(&s->dev, p + 8, attrs);
- desc->buf_addr2 = ldl_le_pci_dma(&s->dev, p + 12, attrs);
+ ldl_le_pci_dma(&s->dev, p, &desc->status, attrs);
+ ldl_le_pci_dma(&s->dev, p + 4, &desc->control, attrs);
+ ldl_le_pci_dma(&s->dev, p + 8, &desc->buf_addr1, attrs);
+ ldl_le_pci_dma(&s->dev, p + 12, &desc->buf_addr2, attrs);
}
}
diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
index 23380008e1..946050bf83 100644
--- a/hw/scsi/megasas.c
+++ b/hw/scsi/megasas.c
@@ -202,9 +202,12 @@ static uint64_t megasas_frame_get_context(MegasasState *s,
unsigned long frame)
{
PCIDevice *pci = &s->parent_obj;
- return ldq_le_pci_dma(pci,
- frame + offsetof(struct mfi_frame_header, context),
- MEMTXATTRS_UNSPECIFIED);
+ uint64_t val;
+
+ ldq_le_pci_dma(pci, frame + offsetof(struct mfi_frame_header, context),
+ &val, MEMTXATTRS_UNSPECIFIED);
+
+ return val;
}
static bool megasas_frame_is_ieee_sgl(MegasasCmd *cmd)
@@ -535,8 +538,8 @@ static MegasasCmd *megasas_enqueue_frame(MegasasState *s,
s->busy++;
if (s->consumer_pa) {
- s->reply_queue_tail = ldl_le_pci_dma(pcid, s->consumer_pa,
- MEMTXATTRS_UNSPECIFIED);
+ ldl_le_pci_dma(pcid, s->consumer_pa, &s->reply_queue_tail,
+ MEMTXATTRS_UNSPECIFIED);
}
trace_megasas_qf_enqueue(cmd->index, cmd->count, cmd->context,
s->reply_queue_head, s->reply_queue_tail, s->busy);
@@ -567,14 +570,14 @@ static void megasas_complete_frame(MegasasState *s, uint64_t context)
stl_le_pci_dma(pci_dev, s->reply_queue_pa + queue_offset,
context, attrs);
}
- s->reply_queue_tail = ldl_le_pci_dma(pci_dev, s->consumer_pa, attrs);
+ ldl_le_pci_dma(pci_dev, s->consumer_pa, &s->reply_queue_tail, attrs);
trace_megasas_qf_complete(context, s->reply_queue_head,
s->reply_queue_tail, s->busy);
}
if (megasas_intr_enabled(s)) {
/* Update reply queue pointer */
- s->reply_queue_tail = ldl_le_pci_dma(pci_dev, s->consumer_pa, attrs);
+ ldl_le_pci_dma(pci_dev, s->consumer_pa, &s->reply_queue_tail, attrs);
tail = s->reply_queue_head;
s->reply_queue_head = megasas_next_index(s, tail, s->fw_cmds);
trace_megasas_qf_update(s->reply_queue_head, s->reply_queue_tail,
@@ -678,9 +681,9 @@ static int megasas_init_firmware(MegasasState *s, MegasasCmd *cmd)
pa_lo = le32_to_cpu(initq->pi_addr_lo);
pa_hi = le32_to_cpu(initq->pi_addr_hi);
s->producer_pa = ((uint64_t) pa_hi << 32) | pa_lo;
- s->reply_queue_head = ldl_le_pci_dma(pcid, s->producer_pa, attrs);
+ ldl_le_pci_dma(pcid, s->producer_pa, &s->reply_queue_head, attrs);
s->reply_queue_head %= MEGASAS_MAX_FRAMES;
- s->reply_queue_tail = ldl_le_pci_dma(pcid, s->consumer_pa, attrs);
+ ldl_le_pci_dma(pcid, s->consumer_pa, &s->reply_queue_tail, attrs);
s->reply_queue_tail %= MEGASAS_MAX_FRAMES;
flags = le32_to_cpu(initq->flags);
if (flags & MFI_QUEUE_FLAG_CONTEXT64) {
diff --git a/hw/scsi/mptsas.c b/hw/scsi/mptsas.c
index ac9f4dfcd2..5181b0c0b0 100644
--- a/hw/scsi/mptsas.c
+++ b/hw/scsi/mptsas.c
@@ -177,10 +177,16 @@ static dma_addr_t mptsas_ld_sg_base(MPTSASState *s, uint32_t flags_and_length,
dma_addr_t addr;
if (flags_and_length & MPI_SGE_FLAGS_64_BIT_ADDRESSING) {
- addr = ldq_le_pci_dma(pci, *sgaddr + 4, attrs);
+ uint64_t addr64;
+
+ ldq_le_pci_dma(pci, *sgaddr + 4, &addr64, attrs);
+ addr = addr64;
*sgaddr += 12;
} else {
- addr = ldl_le_pci_dma(pci, *sgaddr + 4, attrs);
+ uint32_t addr32;
+
+ ldl_le_pci_dma(pci, *sgaddr + 4, &addr32, attrs);
+ addr = addr32;
*sgaddr += 8;
}
return addr;
@@ -204,7 +210,7 @@ static int mptsas_build_sgl(MPTSASState *s, MPTSASRequest *req, hwaddr addr)
dma_addr_t addr, len;
uint32_t flags_and_length;
- flags_and_length = ldl_le_pci_dma(pci, sgaddr, MEMTXATTRS_UNSPECIFIED);
+ ldl_le_pci_dma(pci, sgaddr, &flags_and_length, MEMTXATTRS_UNSPECIFIED);
len = flags_and_length & MPI_SGE_LENGTH_MASK;
if ((flags_and_length & MPI_SGE_FLAGS_ELEMENT_TYPE_MASK)
!= MPI_SGE_FLAGS_SIMPLE_ELEMENT ||
@@ -235,8 +241,8 @@ static int mptsas_build_sgl(MPTSASState *s, MPTSASRequest *req, hwaddr addr)
break;
}
- flags_and_length = ldl_le_pci_dma(pci, next_chain_addr,
- MEMTXATTRS_UNSPECIFIED);
+ ldl_le_pci_dma(pci, next_chain_addr, &flags_and_length,
+ MEMTXATTRS_UNSPECIFIED);
if ((flags_and_length & MPI_SGE_FLAGS_ELEMENT_TYPE_MASK)
!= MPI_SGE_FLAGS_CHAIN_ELEMENT) {
return MPI_IOCSTATUS_INVALID_SGL;
diff --git a/hw/scsi/vmw_pvscsi.c b/hw/scsi/vmw_pvscsi.c
index 33e16f9111..4d9969f3b1 100644
--- a/hw/scsi/vmw_pvscsi.c
+++ b/hw/scsi/vmw_pvscsi.c
@@ -50,10 +50,10 @@
#define PVSCSI_MAX_CMD_DATA_WORDS \
(sizeof(PVSCSICmdDescSetupRings)/sizeof(uint32_t))
-#define RS_GET_FIELD(m, field) \
- (ldl_le_pci_dma(&container_of(m, PVSCSIState, rings)->parent_obj, \
+#define RS_GET_FIELD(pval, m, field) \
+ ldl_le_pci_dma(&container_of(m, PVSCSIState, rings)->parent_obj, \
(m)->rs_pa + offsetof(struct PVSCSIRingsState, field), \
- MEMTXATTRS_UNSPECIFIED))
+ pval, MEMTXATTRS_UNSPECIFIED)
#define RS_SET_FIELD(m, field, val) \
(stl_le_pci_dma(&container_of(m, PVSCSIState, rings)->parent_obj, \
(m)->rs_pa + offsetof(struct PVSCSIRingsState, field), val, \
@@ -249,10 +249,11 @@ pvscsi_ring_cleanup(PVSCSIRingInfo *mgr)
static hwaddr
pvscsi_ring_pop_req_descr(PVSCSIRingInfo *mgr)
{
- uint32_t ready_ptr = RS_GET_FIELD(mgr, reqProdIdx);
+ uint32_t ready_ptr;
uint32_t ring_size = PVSCSI_MAX_NUM_PAGES_REQ_RING
* PVSCSI_MAX_NUM_REQ_ENTRIES_PER_PAGE;
+ RS_GET_FIELD(&ready_ptr, mgr, reqProdIdx);
if (ready_ptr != mgr->consumed_ptr
&& ready_ptr - mgr->consumed_ptr < ring_size) {
uint32_t next_ready_ptr =
@@ -323,8 +324,11 @@ pvscsi_ring_flush_cmp(PVSCSIRingInfo *mgr)
static bool
pvscsi_ring_msg_has_room(PVSCSIRingInfo *mgr)
{
- uint32_t prodIdx = RS_GET_FIELD(mgr, msgProdIdx);
- uint32_t consIdx = RS_GET_FIELD(mgr, msgConsIdx);
+ uint32_t prodIdx;
+ uint32_t consIdx;
+
+ RS_GET_FIELD(&prodIdx, mgr, msgProdIdx);
+ RS_GET_FIELD(&consIdx, mgr, msgConsIdx);
return (prodIdx - consIdx) < (mgr->msg_len_mask + 1);
}
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index a9834e17e2..bfe3a6bca7 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -865,15 +865,14 @@ static inline MemTxResult pci_dma_write(PCIDevice *dev, dma_addr_t addr,
DMA_DIRECTION_FROM_DEVICE, MEMTXATTRS_UNSPECIFIED);
}
-#define PCI_DMA_DEFINE_LDST(_l, _s, _bits) \
- static inline uint##_bits##_t ld##_l##_pci_dma(PCIDevice *dev, \
- dma_addr_t addr, \
- MemTxAttrs attrs) \
- { \
- uint##_bits##_t val; \
- ld##_l##_dma(pci_get_address_space(dev), addr, &val, attrs); \
- return val; \
- } \
+#define PCI_DMA_DEFINE_LDST(_l, _s, _bits) \
+ static inline MemTxResult ld##_l##_pci_dma(PCIDevice *dev, \
+ dma_addr_t addr, \
+ uint##_bits##_t *val, \
+ MemTxAttrs attrs) \
+ { \
+ return ld##_l##_dma(pci_get_address_space(dev), addr, val, attrs); \
+ } \
static inline MemTxResult st##_s##_pci_dma(PCIDevice *dev, \
dma_addr_t addr, \
uint##_bits##_t val, \
--
2.27.0
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