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-rw-r--r--drivers/ntb/hw/amd/ntb_hw_amd.c14
-rw-r--r--drivers/ntb/hw/intel/ntb_hw_intel.c14
-rw-r--r--drivers/ntb/ntb_transport.c15
-rw-r--r--drivers/ntb/test/ntb_perf.c6
-rw-r--r--drivers/ntb/test/ntb_pingpong.c8
-rw-r--r--drivers/ntb/test/ntb_tool.c21
6 files changed, 49 insertions, 29 deletions
diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c
index bcefe1df9ce3..891beb9f26c2 100644
--- a/drivers/ntb/hw/amd/ntb_hw_amd.c
+++ b/drivers/ntb/hw/amd/ntb_hw_amd.c
@@ -432,30 +432,30 @@ static int amd_ntb_spad_write(struct ntb_dev *ntb,
return 0;
}
-static u32 amd_ntb_peer_spad_read(struct ntb_dev *ntb, int idx)
+static u32 amd_ntb_peer_spad_read(struct ntb_dev *ntb, int pidx, int sidx)
{
struct amd_ntb_dev *ndev = ntb_ndev(ntb);
void __iomem *mmio = ndev->self_mmio;
u32 offset;
- if (idx < 0 || idx >= ndev->spad_count)
+ if (sidx < 0 || sidx >= ndev->spad_count)
return -EINVAL;
- offset = ndev->peer_spad + (idx << 2);
+ offset = ndev->peer_spad + (sidx << 2);
return readl(mmio + AMD_SPAD_OFFSET + offset);
}
-static int amd_ntb_peer_spad_write(struct ntb_dev *ntb,
- int idx, u32 val)
+static int amd_ntb_peer_spad_write(struct ntb_dev *ntb, int pidx,
+ int sidx, u32 val)
{
struct amd_ntb_dev *ndev = ntb_ndev(ntb);
void __iomem *mmio = ndev->self_mmio;
u32 offset;
- if (idx < 0 || idx >= ndev->spad_count)
+ if (sidx < 0 || sidx >= ndev->spad_count)
return -EINVAL;
- offset = ndev->peer_spad + (idx << 2);
+ offset = ndev->peer_spad + (sidx << 2);
writel(val, mmio + AMD_SPAD_OFFSET + offset);
return 0;
diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.c b/drivers/ntb/hw/intel/ntb_hw_intel.c
index a9b4ed4d7b52..e00aa39a4544 100644
--- a/drivers/ntb/hw/intel/ntb_hw_intel.c
+++ b/drivers/ntb/hw/intel/ntb_hw_intel.c
@@ -1409,30 +1409,30 @@ static int intel_ntb_spad_write(struct ntb_dev *ntb,
ndev->self_reg->spad);
}
-static int intel_ntb_peer_spad_addr(struct ntb_dev *ntb, int idx,
+static int intel_ntb_peer_spad_addr(struct ntb_dev *ntb, int pidx, int sidx,
phys_addr_t *spad_addr)
{
struct intel_ntb_dev *ndev = ntb_ndev(ntb);
- return ndev_spad_addr(ndev, idx, spad_addr, ndev->peer_addr,
+ return ndev_spad_addr(ndev, sidx, spad_addr, ndev->peer_addr,
ndev->peer_reg->spad);
}
-static u32 intel_ntb_peer_spad_read(struct ntb_dev *ntb, int idx)
+static u32 intel_ntb_peer_spad_read(struct ntb_dev *ntb, int pidx, int sidx)
{
struct intel_ntb_dev *ndev = ntb_ndev(ntb);
- return ndev_spad_read(ndev, idx,
+ return ndev_spad_read(ndev, sidx,
ndev->peer_mmio +
ndev->peer_reg->spad);
}
-static int intel_ntb_peer_spad_write(struct ntb_dev *ntb,
- int idx, u32 val)
+static int intel_ntb_peer_spad_write(struct ntb_dev *ntb, int pidx,
+ int sidx, u32 val)
{
struct intel_ntb_dev *ndev = ntb_ndev(ntb);
- return ndev_spad_write(ndev, idx, val,
+ return ndev_spad_write(ndev, sidx, val,
ndev->peer_mmio +
ndev->peer_reg->spad);
}
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index 771b469cebf0..9a03c5871efe 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -862,17 +862,17 @@ static void ntb_transport_link_work(struct work_struct *work)
size = max_mw_size;
spad = MW0_SZ_HIGH + (i * 2);
- ntb_peer_spad_write(ndev, spad, upper_32_bits(size));
+ ntb_peer_spad_write(ndev, PIDX, spad, upper_32_bits(size));
spad = MW0_SZ_LOW + (i * 2);
- ntb_peer_spad_write(ndev, spad, lower_32_bits(size));
+ ntb_peer_spad_write(ndev, PIDX, spad, lower_32_bits(size));
}
- ntb_peer_spad_write(ndev, NUM_MWS, nt->mw_count);
+ ntb_peer_spad_write(ndev, PIDX, NUM_MWS, nt->mw_count);
- ntb_peer_spad_write(ndev, NUM_QPS, nt->qp_count);
+ ntb_peer_spad_write(ndev, PIDX, NUM_QPS, nt->qp_count);
- ntb_peer_spad_write(ndev, VERSION, NTB_TRANSPORT_VERSION);
+ ntb_peer_spad_write(ndev, PIDX, VERSION, NTB_TRANSPORT_VERSION);
/* Query the remote side for its info */
val = ntb_spad_read(ndev, VERSION);
@@ -948,7 +948,7 @@ static void ntb_qp_link_work(struct work_struct *work)
val = ntb_spad_read(nt->ndev, QP_LINKS);
- ntb_peer_spad_write(nt->ndev, QP_LINKS, val | BIT(qp->qp_num));
+ ntb_peer_spad_write(nt->ndev, PIDX, QP_LINKS, val | BIT(qp->qp_num));
/* query remote spad for qp ready bits */
dev_dbg_ratelimited(&pdev->dev, "Remote QP link status = %x\n", val);
@@ -2108,8 +2108,7 @@ void ntb_transport_link_down(struct ntb_transport_qp *qp)
val = ntb_spad_read(qp->ndev, QP_LINKS);
- ntb_peer_spad_write(qp->ndev, QP_LINKS,
- val & ~BIT(qp->qp_num));
+ ntb_peer_spad_write(qp->ndev, PIDX, QP_LINKS, val & ~BIT(qp->qp_num));
if (qp->link_is_up)
ntb_send_link_down(qp);
diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
index 7f89cceaf350..42756a98a728 100644
--- a/drivers/ntb/test/ntb_perf.c
+++ b/drivers/ntb/test/ntb_perf.c
@@ -518,9 +518,9 @@ static void perf_link_work(struct work_struct *work)
if (max_mw_size && size > max_mw_size)
size = max_mw_size;
- ntb_peer_spad_write(ndev, MW_SZ_HIGH, upper_32_bits(size));
- ntb_peer_spad_write(ndev, MW_SZ_LOW, lower_32_bits(size));
- ntb_peer_spad_write(ndev, VERSION, PERF_VERSION);
+ ntb_peer_spad_write(ndev, PIDX, MW_SZ_HIGH, upper_32_bits(size));
+ ntb_peer_spad_write(ndev, PIDX, MW_SZ_LOW, lower_32_bits(size));
+ ntb_peer_spad_write(ndev, PIDX, VERSION, PERF_VERSION);
/* now read what peer wrote */
val = ntb_spad_read(ndev, VERSION);
diff --git a/drivers/ntb/test/ntb_pingpong.c b/drivers/ntb/test/ntb_pingpong.c
index 12f8b40cb11a..938a18bcfc3f 100644
--- a/drivers/ntb/test/ntb_pingpong.c
+++ b/drivers/ntb/test/ntb_pingpong.c
@@ -138,7 +138,7 @@ static void pp_ping(unsigned long ctx)
"Ping bits %#llx read %#x write %#x\n",
db_bits, spad_rd, spad_wr);
- ntb_peer_spad_write(pp->ntb, 0, spad_wr);
+ ntb_peer_spad_write(pp->ntb, PIDX, 0, spad_wr);
ntb_peer_db_set(pp->ntb, db_bits);
ntb_db_clear_mask(pp->ntb, db_mask);
@@ -225,6 +225,12 @@ static int pp_probe(struct ntb_client *client,
}
}
+ if (ntb_spad_count(ntb) < 1) {
+ dev_dbg(&ntb->dev, "no enough scratchpads\n");
+ rc = -EINVAL;
+ goto err_pp;
+ }
+
if (ntb_spad_is_unsafe(ntb)) {
dev_dbg(&ntb->dev, "scratchpad is unsafe\n");
if (!unsafe) {
diff --git a/drivers/ntb/test/ntb_tool.c b/drivers/ntb/test/ntb_tool.c
index cb692473d457..f002bf48a08d 100644
--- a/drivers/ntb/test/ntb_tool.c
+++ b/drivers/ntb/test/ntb_tool.c
@@ -462,13 +462,22 @@ static TOOL_FOPS_RDWR(tool_spad_fops,
tool_spad_read,
tool_spad_write);
+static u32 ntb_tool_peer_spad_read(struct ntb_dev *ntb, int sidx)
+{
+ return ntb_peer_spad_read(ntb, PIDX, sidx);
+}
+
static ssize_t tool_peer_spad_read(struct file *filep, char __user *ubuf,
size_t size, loff_t *offp)
{
struct tool_ctx *tc = filep->private_data;
- return tool_spadfn_read(tc, ubuf, size, offp,
- tc->ntb->ops->peer_spad_read);
+ return tool_spadfn_read(tc, ubuf, size, offp, ntb_tool_peer_spad_read);
+}
+
+static int ntb_tool_peer_spad_write(struct ntb_dev *ntb, int sidx, u32 val)
+{
+ return ntb_peer_spad_write(ntb, PIDX, sidx, val);
}
static ssize_t tool_peer_spad_write(struct file *filep, const char __user *ubuf,
@@ -477,7 +486,7 @@ static ssize_t tool_peer_spad_write(struct file *filep, const char __user *ubuf,
struct tool_ctx *tc = filep->private_data;
return tool_spadfn_write(tc, ubuf, size, offp,
- tc->ntb->ops->peer_spad_write);
+ ntb_tool_peer_spad_write);
}
static TOOL_FOPS_RDWR(tool_peer_spad_fops,
@@ -926,6 +935,12 @@ static int tool_probe(struct ntb_client *self, struct ntb_dev *ntb)
goto err_tc;
}
+ if (ntb_spad_count(ntb) < 1) {
+ dev_dbg(&ntb->dev, "no enough scratchpads\n");
+ rc = -EINVAL;
+ goto err_tc;
+ }
+
if (ntb_db_is_unsafe(ntb))
dev_dbg(&ntb->dev, "doorbell is unsafe\n");
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-29 07:10:59 +0000