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authorMichael Ellerman <mpe@ellerman.id.au>2017-07-31 20:20:29 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2017-07-31 20:20:29 +1000
commitbb272221e9db79f13d454e1f3fb6b05013be985e (patch)
tree36f4acc50e3fabac71fadd34c720c0a6011db470 /drivers/ntb/hw/intel/ntb_hw_intel.c
parent253fd51e2f533552ae35a0c661705da6c4842c1b (diff)
parent5771a8c08880cdca3bfb4a3fc6d309d6bba20877 (diff)
downloadlinux-bb272221e9db79f13d454e1f3fb6b05013be985e.tar.gz
linux-bb272221e9db79f13d454e1f3fb6b05013be985e.tar.bz2
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Merge tag 'v4.13-rc1' into fixes
The fixes branch is based off a random pre-rc1 commit, because we had some fixes that needed to go in before rc1 was released. However we now need to fix some code that went in after that point, but before rc1, so merge rc1 to get that code into fixes so we can fix it!
Diffstat (limited to 'drivers/ntb/hw/intel/ntb_hw_intel.c')
-rw-r--r--drivers/ntb/hw/intel/ntb_hw_intel.c298
1 files changed, 173 insertions, 125 deletions
diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.c b/drivers/ntb/hw/intel/ntb_hw_intel.c
index 7b3b6fd63d7d..2557e2c05b90 100644
--- a/drivers/ntb/hw/intel/ntb_hw_intel.c
+++ b/drivers/ntb/hw/intel/ntb_hw_intel.c
@@ -6,6 +6,7 @@
*
* Copyright(c) 2012 Intel Corporation. All rights reserved.
* Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ * Copyright (C) 2016 T-Platforms. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -15,6 +16,7 @@
*
* Copyright(c) 2012 Intel Corporation. All rights reserved.
* Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ * Copyright (C) 2016 T-Platforms. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -270,12 +272,12 @@ static inline int ndev_db_addr(struct intel_ntb_dev *ndev,
if (db_addr) {
*db_addr = reg_addr + reg;
- dev_dbg(ndev_dev(ndev), "Peer db addr %llx\n", *db_addr);
+ dev_dbg(&ndev->ntb.pdev->dev, "Peer db addr %llx\n", *db_addr);
}
if (db_size) {
*db_size = ndev->reg->db_size;
- dev_dbg(ndev_dev(ndev), "Peer db size %llx\n", *db_size);
+ dev_dbg(&ndev->ntb.pdev->dev, "Peer db size %llx\n", *db_size);
}
return 0;
@@ -368,7 +370,8 @@ static inline int ndev_spad_addr(struct intel_ntb_dev *ndev, int idx,
if (spad_addr) {
*spad_addr = reg_addr + reg + (idx << 2);
- dev_dbg(ndev_dev(ndev), "Peer spad addr %llx\n", *spad_addr);
+ dev_dbg(&ndev->ntb.pdev->dev, "Peer spad addr %llx\n",
+ *spad_addr);
}
return 0;
@@ -409,7 +412,7 @@ static irqreturn_t ndev_interrupt(struct intel_ntb_dev *ndev, int vec)
if ((ndev->hwerr_flags & NTB_HWERR_MSIX_VECTOR32_BAD) && (vec == 31))
vec_mask |= ndev->db_link_mask;
- dev_dbg(ndev_dev(ndev), "vec %d vec_mask %llx\n", vec, vec_mask);
+ dev_dbg(&ndev->ntb.pdev->dev, "vec %d vec_mask %llx\n", vec, vec_mask);
ndev->last_ts = jiffies;
@@ -428,7 +431,7 @@ static irqreturn_t ndev_vec_isr(int irq, void *dev)
{
struct intel_ntb_vec *nvec = dev;
- dev_dbg(ndev_dev(nvec->ndev), "irq: %d nvec->num: %d\n",
+ dev_dbg(&nvec->ndev->ntb.pdev->dev, "irq: %d nvec->num: %d\n",
irq, nvec->num);
return ndev_interrupt(nvec->ndev, nvec->num);
@@ -438,7 +441,7 @@ static irqreturn_t ndev_irq_isr(int irq, void *dev)
{
struct intel_ntb_dev *ndev = dev;
- return ndev_interrupt(ndev, irq - ndev_pdev(ndev)->irq);
+ return ndev_interrupt(ndev, irq - ndev->ntb.pdev->irq);
}
static int ndev_init_isr(struct intel_ntb_dev *ndev,
@@ -448,7 +451,7 @@ static int ndev_init_isr(struct intel_ntb_dev *ndev,
struct pci_dev *pdev;
int rc, i, msix_count, node;
- pdev = ndev_pdev(ndev);
+ pdev = ndev->ntb.pdev;
node = dev_to_node(&pdev->dev);
@@ -487,7 +490,7 @@ static int ndev_init_isr(struct intel_ntb_dev *ndev,
goto err_msix_request;
}
- dev_dbg(ndev_dev(ndev), "Using %d msix interrupts\n", msix_count);
+ dev_dbg(&pdev->dev, "Using %d msix interrupts\n", msix_count);
ndev->db_vec_count = msix_count;
ndev->db_vec_shift = msix_shift;
return 0;
@@ -515,7 +518,7 @@ err_msix_vec_alloc:
if (rc)
goto err_msi_request;
- dev_dbg(ndev_dev(ndev), "Using msi interrupts\n");
+ dev_dbg(&pdev->dev, "Using msi interrupts\n");
ndev->db_vec_count = 1;
ndev->db_vec_shift = total_shift;
return 0;
@@ -533,7 +536,7 @@ err_msi_enable:
if (rc)
goto err_intx_request;
- dev_dbg(ndev_dev(ndev), "Using intx interrupts\n");
+ dev_dbg(&pdev->dev, "Using intx interrupts\n");
ndev->db_vec_count = 1;
ndev->db_vec_shift = total_shift;
return 0;
@@ -547,7 +550,7 @@ static void ndev_deinit_isr(struct intel_ntb_dev *ndev)
struct pci_dev *pdev;
int i;
- pdev = ndev_pdev(ndev);
+ pdev = ndev->ntb.pdev;
/* Mask all doorbell interrupts */
ndev->db_mask = ndev->db_valid_mask;
@@ -744,7 +747,7 @@ static ssize_t ndev_ntb_debugfs_read(struct file *filp, char __user *ubuf,
union { u64 v64; u32 v32; u16 v16; u8 v8; } u;
ndev = filp->private_data;
- pdev = ndev_pdev(ndev);
+ pdev = ndev->ntb.pdev;
mmio = ndev->self_mmio;
buf_size = min(count, 0x800ul);
@@ -1019,7 +1022,8 @@ static void ndev_init_debugfs(struct intel_ntb_dev *ndev)
ndev->debugfs_info = NULL;
} else {
ndev->debugfs_dir =
- debugfs_create_dir(ndev_name(ndev), debugfs_dir);
+ debugfs_create_dir(pci_name(ndev->ntb.pdev),
+ debugfs_dir);
if (!ndev->debugfs_dir)
ndev->debugfs_info = NULL;
else
@@ -1035,20 +1039,26 @@ static void ndev_deinit_debugfs(struct intel_ntb_dev *ndev)
debugfs_remove_recursive(ndev->debugfs_dir);
}
-static int intel_ntb_mw_count(struct ntb_dev *ntb)
+static int intel_ntb_mw_count(struct ntb_dev *ntb, int pidx)
{
+ if (pidx != NTB_DEF_PEER_IDX)
+ return -EINVAL;
+
return ntb_ndev(ntb)->mw_count;
}
-static int intel_ntb_mw_get_range(struct ntb_dev *ntb, int idx,
- phys_addr_t *base,
- resource_size_t *size,
- resource_size_t *align,
- resource_size_t *align_size)
+static int intel_ntb_mw_get_align(struct ntb_dev *ntb, int pidx, int idx,
+ resource_size_t *addr_align,
+ resource_size_t *size_align,
+ resource_size_t *size_max)
{
struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+ resource_size_t bar_size, mw_size;
int bar;
+ if (pidx != NTB_DEF_PEER_IDX)
+ return -EINVAL;
+
if (idx >= ndev->b2b_idx && !ndev->b2b_off)
idx += 1;
@@ -1056,24 +1066,26 @@ static int intel_ntb_mw_get_range(struct ntb_dev *ntb, int idx,
if (bar < 0)
return bar;
- if (base)
- *base = pci_resource_start(ndev->ntb.pdev, bar) +
- (idx == ndev->b2b_idx ? ndev->b2b_off : 0);
+ bar_size = pci_resource_len(ndev->ntb.pdev, bar);
- if (size)
- *size = pci_resource_len(ndev->ntb.pdev, bar) -
- (idx == ndev->b2b_idx ? ndev->b2b_off : 0);
+ if (idx == ndev->b2b_idx)
+ mw_size = bar_size - ndev->b2b_off;
+ else
+ mw_size = bar_size;
+
+ if (addr_align)
+ *addr_align = pci_resource_len(ndev->ntb.pdev, bar);
- if (align)
- *align = pci_resource_len(ndev->ntb.pdev, bar);
+ if (size_align)
+ *size_align = 1;
- if (align_size)
- *align_size = 1;
+ if (size_max)
+ *size_max = mw_size;
return 0;
}
-static int intel_ntb_mw_set_trans(struct ntb_dev *ntb, int idx,
+static int intel_ntb_mw_set_trans(struct ntb_dev *ntb, int pidx, int idx,
dma_addr_t addr, resource_size_t size)
{
struct intel_ntb_dev *ndev = ntb_ndev(ntb);
@@ -1083,6 +1095,9 @@ static int intel_ntb_mw_set_trans(struct ntb_dev *ntb, int idx,
u64 base, limit, reg_val;
int bar;
+ if (pidx != NTB_DEF_PEER_IDX)
+ return -EINVAL;
+
if (idx >= ndev->b2b_idx && !ndev->b2b_off)
idx += 1;
@@ -1171,7 +1186,7 @@ static int intel_ntb_mw_set_trans(struct ntb_dev *ntb, int idx,
return 0;
}
-static int intel_ntb_link_is_up(struct ntb_dev *ntb,
+static u64 intel_ntb_link_is_up(struct ntb_dev *ntb,
enum ntb_speed *speed,
enum ntb_width *width)
{
@@ -1206,13 +1221,13 @@ static int intel_ntb_link_enable(struct ntb_dev *ntb,
if (ndev->ntb.topo == NTB_TOPO_SEC)
return -EINVAL;
- dev_dbg(ndev_dev(ndev),
+ dev_dbg(&ntb->pdev->dev,
"Enabling link with max_speed %d max_width %d\n",
max_speed, max_width);
if (max_speed != NTB_SPEED_AUTO)
- dev_dbg(ndev_dev(ndev), "ignoring max_speed %d\n", max_speed);
+ dev_dbg(&ntb->pdev->dev, "ignoring max_speed %d\n", max_speed);
if (max_width != NTB_WIDTH_AUTO)
- dev_dbg(ndev_dev(ndev), "ignoring max_width %d\n", max_width);
+ dev_dbg(&ntb->pdev->dev, "ignoring max_width %d\n", max_width);
ntb_ctl = ioread32(ndev->self_mmio + ndev->reg->ntb_ctl);
ntb_ctl &= ~(NTB_CTL_DISABLE | NTB_CTL_CFG_LOCK);
@@ -1235,7 +1250,7 @@ static int intel_ntb_link_disable(struct ntb_dev *ntb)
if (ndev->ntb.topo == NTB_TOPO_SEC)
return -EINVAL;
- dev_dbg(ndev_dev(ndev), "Disabling link\n");
+ dev_dbg(&ntb->pdev->dev, "Disabling link\n");
/* Bring NTB link down */
ntb_cntl = ioread32(ndev->self_mmio + ndev->reg->ntb_ctl);
@@ -1249,6 +1264,36 @@ static int intel_ntb_link_disable(struct ntb_dev *ntb)
return 0;
}
+static int intel_ntb_peer_mw_count(struct ntb_dev *ntb)
+{
+ /* Numbers of inbound and outbound memory windows match */
+ return ntb_ndev(ntb)->mw_count;
+}
+
+static int intel_ntb_peer_mw_get_addr(struct ntb_dev *ntb, int idx,
+ phys_addr_t *base, resource_size_t *size)
+{
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+ int bar;
+
+ if (idx >= ndev->b2b_idx && !ndev->b2b_off)
+ idx += 1;
+
+ bar = ndev_mw_to_bar(ndev, idx);
+ if (bar < 0)
+ return bar;
+
+ if (base)
+ *base = pci_resource_start(ndev->ntb.pdev, bar) +
+ (idx == ndev->b2b_idx ? ndev->b2b_off : 0);
+
+ if (size)
+ *size = pci_resource_len(ndev->ntb.pdev, bar) -
+ (idx == ndev->b2b_idx ? ndev->b2b_off : 0);
+
+ return 0;
+}
+
static int intel_ntb_db_is_unsafe(struct ntb_dev *ntb)
{
return ndev_ignore_unsafe(ntb_ndev(ntb), NTB_UNSAFE_DB);
@@ -1366,30 +1411,30 @@ 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);
}
@@ -1442,30 +1487,33 @@ static int atom_link_is_err(struct intel_ntb_dev *ndev)
static inline enum ntb_topo atom_ppd_topo(struct intel_ntb_dev *ndev, u32 ppd)
{
+ struct device *dev = &ndev->ntb.pdev->dev;
+
switch (ppd & ATOM_PPD_TOPO_MASK) {
case ATOM_PPD_TOPO_B2B_USD:
- dev_dbg(ndev_dev(ndev), "PPD %d B2B USD\n", ppd);
+ dev_dbg(dev, "PPD %d B2B USD\n", ppd);
return NTB_TOPO_B2B_USD;
case ATOM_PPD_TOPO_B2B_DSD:
- dev_dbg(ndev_dev(ndev), "PPD %d B2B DSD\n", ppd);
+ dev_dbg(dev, "PPD %d B2B DSD\n", ppd);
return NTB_TOPO_B2B_DSD;
case ATOM_PPD_TOPO_PRI_USD:
case ATOM_PPD_TOPO_PRI_DSD: /* accept bogus PRI_DSD */
case ATOM_PPD_TOPO_SEC_USD:
case ATOM_PPD_TOPO_SEC_DSD: /* accept bogus SEC_DSD */
- dev_dbg(ndev_dev(ndev), "PPD %d non B2B disabled\n", ppd);
+ dev_dbg(dev, "PPD %d non B2B disabled\n", ppd);
return NTB_TOPO_NONE;
}
- dev_dbg(ndev_dev(ndev), "PPD %d invalid\n", ppd);
+ dev_dbg(dev, "PPD %d invalid\n", ppd);
return NTB_TOPO_NONE;
}
static void atom_link_hb(struct work_struct *work)
{
struct intel_ntb_dev *ndev = hb_ndev(work);
+ struct device *dev = &ndev->ntb.pdev->dev;
unsigned long poll_ts;
void __iomem *mmio;
u32 status32;
@@ -1503,30 +1551,30 @@ static void atom_link_hb(struct work_struct *work)
/* Clear AER Errors, write to clear */
status32 = ioread32(mmio + ATOM_ERRCORSTS_OFFSET);
- dev_dbg(ndev_dev(ndev), "ERRCORSTS = %x\n", status32);
+ dev_dbg(dev, "ERRCORSTS = %x\n", status32);
status32 &= PCI_ERR_COR_REP_ROLL;
iowrite32(status32, mmio + ATOM_ERRCORSTS_OFFSET);
/* Clear unexpected electrical idle event in LTSSM, write to clear */
status32 = ioread32(mmio + ATOM_LTSSMERRSTS0_OFFSET);
- dev_dbg(ndev_dev(ndev), "LTSSMERRSTS0 = %x\n", status32);
+ dev_dbg(dev, "LTSSMERRSTS0 = %x\n", status32);
status32 |= ATOM_LTSSMERRSTS0_UNEXPECTEDEI;
iowrite32(status32, mmio + ATOM_LTSSMERRSTS0_OFFSET);
/* Clear DeSkew Buffer error, write to clear */
status32 = ioread32(mmio + ATOM_DESKEWSTS_OFFSET);
- dev_dbg(ndev_dev(ndev), "DESKEWSTS = %x\n", status32);
+ dev_dbg(dev, "DESKEWSTS = %x\n", status32);
status32 |= ATOM_DESKEWSTS_DBERR;
iowrite32(status32, mmio + ATOM_DESKEWSTS_OFFSET);
status32 = ioread32(mmio + ATOM_IBSTERRRCRVSTS0_OFFSET);
- dev_dbg(ndev_dev(ndev), "IBSTERRRCRVSTS0 = %x\n", status32);
+ dev_dbg(dev, "IBSTERRRCRVSTS0 = %x\n", status32);
status32 &= ATOM_IBIST_ERR_OFLOW;
iowrite32(status32, mmio + ATOM_IBSTERRRCRVSTS0_OFFSET);
/* Releases the NTB state machine to allow the link to retrain */
status32 = ioread32(mmio + ATOM_LTSSMSTATEJMP_OFFSET);
- dev_dbg(ndev_dev(ndev), "LTSSMSTATEJMP = %x\n", status32);
+ dev_dbg(dev, "LTSSMSTATEJMP = %x\n", status32);
status32 &= ~ATOM_LTSSMSTATEJMP_FORCEDETECT;
iowrite32(status32, mmio + ATOM_LTSSMSTATEJMP_OFFSET);
@@ -1699,11 +1747,11 @@ static int skx_setup_b2b_mw(struct intel_ntb_dev *ndev,
int b2b_bar;
u8 bar_sz;
- pdev = ndev_pdev(ndev);
+ pdev = ndev->ntb.pdev;
mmio = ndev->self_mmio;
if (ndev->b2b_idx == UINT_MAX) {
- dev_dbg(ndev_dev(ndev), "not using b2b mw\n");
+ dev_dbg(&pdev->dev, "not using b2b mw\n");
b2b_bar = 0;
ndev->b2b_off = 0;
} else {
@@ -1711,24 +1759,21 @@ static int skx_setup_b2b_mw(struct intel_ntb_dev *ndev,
if (b2b_bar < 0)
return -EIO;
- dev_dbg(ndev_dev(ndev), "using b2b mw bar %d\n", b2b_bar);
+ dev_dbg(&pdev->dev, "using b2b mw bar %d\n", b2b_bar);
bar_size = pci_resource_len(ndev->ntb.pdev, b2b_bar);
- dev_dbg(ndev_dev(ndev), "b2b bar size %#llx\n", bar_size);
+ dev_dbg(&pdev->dev, "b2b bar size %#llx\n", bar_size);
if (b2b_mw_share && ((bar_size >> 1) >= XEON_B2B_MIN_SIZE)) {
- dev_dbg(ndev_dev(ndev),
- "b2b using first half of bar\n");
+ dev_dbg(&pdev->dev, "b2b using first half of bar\n");
ndev->b2b_off = bar_size >> 1;
} else if (bar_size >= XEON_B2B_MIN_SIZE) {
- dev_dbg(ndev_dev(ndev),
- "b2b using whole bar\n");
+ dev_dbg(&pdev->dev, "b2b using whole bar\n");
ndev->b2b_off = 0;
--ndev->mw_count;
} else {
- dev_dbg(ndev_dev(ndev),
- "b2b bar size is too small\n");
+ dev_dbg(&pdev->dev, "b2b bar size is too small\n");
return -EIO;
}
}
@@ -1738,7 +1783,7 @@ static int skx_setup_b2b_mw(struct intel_ntb_dev *ndev,
* except disable or halve the size of the b2b secondary bar.
*/
pci_read_config_byte(pdev, SKX_IMBAR1SZ_OFFSET, &bar_sz);
- dev_dbg(ndev_dev(ndev), "IMBAR1SZ %#x\n", bar_sz);
+ dev_dbg(&pdev->dev, "IMBAR1SZ %#x\n", bar_sz);
if (b2b_bar == 1) {
if (ndev->b2b_off)
bar_sz -= 1;
@@ -1748,10 +1793,10 @@ static int skx_setup_b2b_mw(struct intel_ntb_dev *ndev,
pci_write_config_byte(pdev, SKX_EMBAR1SZ_OFFSET, bar_sz);
pci_read_config_byte(pdev, SKX_EMBAR1SZ_OFFSET, &bar_sz);
- dev_dbg(ndev_dev(ndev), "EMBAR1SZ %#x\n", bar_sz);
+ dev_dbg(&pdev->dev, "EMBAR1SZ %#x\n", bar_sz);
pci_read_config_byte(pdev, SKX_IMBAR2SZ_OFFSET, &bar_sz);
- dev_dbg(ndev_dev(ndev), "IMBAR2SZ %#x\n", bar_sz);
+ dev_dbg(&pdev->dev, "IMBAR2SZ %#x\n", bar_sz);
if (b2b_bar == 2) {
if (ndev->b2b_off)
bar_sz -= 1;
@@ -1761,7 +1806,7 @@ static int skx_setup_b2b_mw(struct intel_ntb_dev *ndev,
pci_write_config_byte(pdev, SKX_EMBAR2SZ_OFFSET, bar_sz);
pci_read_config_byte(pdev, SKX_EMBAR2SZ_OFFSET, &bar_sz);
- dev_dbg(ndev_dev(ndev), "EMBAR2SZ %#x\n", bar_sz);
+ dev_dbg(&pdev->dev, "EMBAR2SZ %#x\n", bar_sz);
/* SBAR01 hit by first part of the b2b bar */
if (b2b_bar == 0)
@@ -1777,12 +1822,12 @@ static int skx_setup_b2b_mw(struct intel_ntb_dev *ndev,
bar_addr = addr->bar2_addr64 + (b2b_bar == 1 ? ndev->b2b_off : 0);
iowrite64(bar_addr, mmio + SKX_IMBAR1XLMT_OFFSET);
bar_addr = ioread64(mmio + SKX_IMBAR1XLMT_OFFSET);
- dev_dbg(ndev_dev(ndev), "IMBAR1XLMT %#018llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "IMBAR1XLMT %#018llx\n", bar_addr);
bar_addr = addr->bar4_addr64 + (b2b_bar == 2 ? ndev->b2b_off : 0);
iowrite64(bar_addr, mmio + SKX_IMBAR2XLMT_OFFSET);
bar_addr = ioread64(mmio + SKX_IMBAR2XLMT_OFFSET);
- dev_dbg(ndev_dev(ndev), "IMBAR2XLMT %#018llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "IMBAR2XLMT %#018llx\n", bar_addr);
/* zero incoming translation addrs */
iowrite64(0, mmio + SKX_IMBAR1XBASE_OFFSET);
@@ -1852,7 +1897,7 @@ static int skx_init_dev(struct intel_ntb_dev *ndev)
u8 ppd;
int rc;
- pdev = ndev_pdev(ndev);
+ pdev = ndev->ntb.pdev;
ndev->reg = &skx_reg;
@@ -1861,7 +1906,7 @@ static int skx_init_dev(struct intel_ntb_dev *ndev)
return -EIO;
ndev->ntb.topo = xeon_ppd_topo(ndev, ppd);
- dev_dbg(ndev_dev(ndev), "ppd %#x topo %s\n", ppd,
+ dev_dbg(&pdev->dev, "ppd %#x topo %s\n", ppd,
ntb_topo_string(ndev->ntb.topo));
if (ndev->ntb.topo == NTB_TOPO_NONE)
return -EINVAL;
@@ -1885,14 +1930,14 @@ static int intel_ntb3_link_enable(struct ntb_dev *ntb,
ndev = container_of(ntb, struct intel_ntb_dev, ntb);
- dev_dbg(ndev_dev(ndev),
+ dev_dbg(&ntb->pdev->dev,
"Enabling link with max_speed %d max_width %d\n",
max_speed, max_width);
if (max_speed != NTB_SPEED_AUTO)
- dev_dbg(ndev_dev(ndev), "ignoring max_speed %d\n", max_speed);
+ dev_dbg(&ntb->pdev->dev, "ignoring max_speed %d\n", max_speed);
if (max_width != NTB_WIDTH_AUTO)
- dev_dbg(ndev_dev(ndev), "ignoring max_width %d\n", max_width);
+ dev_dbg(&ntb->pdev->dev, "ignoring max_width %d\n", max_width);
ntb_ctl = ioread32(ndev->self_mmio + ndev->reg->ntb_ctl);
ntb_ctl &= ~(NTB_CTL_DISABLE | NTB_CTL_CFG_LOCK);
@@ -1902,7 +1947,7 @@ static int intel_ntb3_link_enable(struct ntb_dev *ntb,
return 0;
}
-static int intel_ntb3_mw_set_trans(struct ntb_dev *ntb, int idx,
+static int intel_ntb3_mw_set_trans(struct ntb_dev *ntb, int pidx, int idx,
dma_addr_t addr, resource_size_t size)
{
struct intel_ntb_dev *ndev = ntb_ndev(ntb);
@@ -1912,6 +1957,9 @@ static int intel_ntb3_mw_set_trans(struct ntb_dev *ntb, int idx,
u64 base, limit, reg_val;
int bar;
+ if (pidx != NTB_DEF_PEER_IDX)
+ return -EINVAL;
+
if (idx >= ndev->b2b_idx && !ndev->b2b_off)
idx += 1;
@@ -1953,7 +2001,7 @@ static int intel_ntb3_mw_set_trans(struct ntb_dev *ntb, int idx,
return -EIO;
}
- dev_dbg(ndev_dev(ndev), "BAR %d IMBARXBASE: %#Lx\n", bar, reg_val);
+ dev_dbg(&ntb->pdev->dev, "BAR %d IMBARXBASE: %#Lx\n", bar, reg_val);
/* set and verify setting the limit */
iowrite64(limit, mmio + limit_reg);
@@ -1964,7 +2012,7 @@ static int intel_ntb3_mw_set_trans(struct ntb_dev *ntb, int idx,
return -EIO;
}
- dev_dbg(ndev_dev(ndev), "BAR %d IMBARXLMT: %#Lx\n", bar, reg_val);
+ dev_dbg(&ntb->pdev->dev, "BAR %d IMBARXLMT: %#Lx\n", bar, reg_val);
/* setup the EP */
limit_reg = ndev->xlat_reg->bar2_limit + (idx * 0x10) + 0x4000;
@@ -1985,7 +2033,7 @@ static int intel_ntb3_mw_set_trans(struct ntb_dev *ntb, int idx,
return -EIO;
}
- dev_dbg(ndev_dev(ndev), "BAR %d EMBARXLMT: %#Lx\n", bar, reg_val);
+ dev_dbg(&ntb->pdev->dev, "BAR %d EMBARXLMT: %#Lx\n", bar, reg_val);
return 0;
}
@@ -2092,7 +2140,7 @@ static inline enum ntb_topo xeon_ppd_topo(struct intel_ntb_dev *ndev, u8 ppd)
static inline int xeon_ppd_bar4_split(struct intel_ntb_dev *ndev, u8 ppd)
{
if (ppd & XEON_PPD_SPLIT_BAR_MASK) {
- dev_dbg(ndev_dev(ndev), "PPD %d split bar\n", ppd);
+ dev_dbg(&ndev->ntb.pdev->dev, "PPD %d split bar\n", ppd);
return 1;
}
return 0;
@@ -2122,11 +2170,11 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
int b2b_bar;
u8 bar_sz;
- pdev = ndev_pdev(ndev);
+ pdev = ndev->ntb.pdev;
mmio = ndev->self_mmio;
if (ndev->b2b_idx == UINT_MAX) {
- dev_dbg(ndev_dev(ndev), "not using b2b mw\n");
+ dev_dbg(&pdev->dev, "not using b2b mw\n");
b2b_bar = 0;
ndev->b2b_off = 0;
} else {
@@ -2134,24 +2182,21 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
if (b2b_bar < 0)
return -EIO;
- dev_dbg(ndev_dev(ndev), "using b2b mw bar %d\n", b2b_bar);
+ dev_dbg(&pdev->dev, "using b2b mw bar %d\n", b2b_bar);
bar_size = pci_resource_len(ndev->ntb.pdev, b2b_bar);
- dev_dbg(ndev_dev(ndev), "b2b bar size %#llx\n", bar_size);
+ dev_dbg(&pdev->dev, "b2b bar size %#llx\n", bar_size);
if (b2b_mw_share && XEON_B2B_MIN_SIZE <= bar_size >> 1) {
- dev_dbg(ndev_dev(ndev),
- "b2b using first half of bar\n");
+ dev_dbg(&pdev->dev, "b2b using first half of bar\n");
ndev->b2b_off = bar_size >> 1;
} else if (XEON_B2B_MIN_SIZE <= bar_size) {
- dev_dbg(ndev_dev(ndev),
- "b2b using whole bar\n");
+ dev_dbg(&pdev->dev, "b2b using whole bar\n");
ndev->b2b_off = 0;
--ndev->mw_count;
} else {
- dev_dbg(ndev_dev(ndev),
- "b2b bar size is too small\n");
+ dev_dbg(&pdev->dev, "b2b bar size is too small\n");
return -EIO;
}
}
@@ -2163,7 +2208,7 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
* offsets are not in a consistent order (bar5sz comes after ppd, odd).
*/
pci_read_config_byte(pdev, XEON_PBAR23SZ_OFFSET, &bar_sz);
- dev_dbg(ndev_dev(ndev), "PBAR23SZ %#x\n", bar_sz);
+ dev_dbg(&pdev->dev, "PBAR23SZ %#x\n", bar_sz);
if (b2b_bar == 2) {
if (ndev->b2b_off)
bar_sz -= 1;
@@ -2172,11 +2217,11 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
}
pci_write_config_byte(pdev, XEON_SBAR23SZ_OFFSET, bar_sz);
pci_read_config_byte(pdev, XEON_SBAR23SZ_OFFSET, &bar_sz);
- dev_dbg(ndev_dev(ndev), "SBAR23SZ %#x\n", bar_sz);
+ dev_dbg(&pdev->dev, "SBAR23SZ %#x\n", bar_sz);
if (!ndev->bar4_split) {
pci_read_config_byte(pdev, XEON_PBAR45SZ_OFFSET, &bar_sz);
- dev_dbg(ndev_dev(ndev), "PBAR45SZ %#x\n", bar_sz);
+ dev_dbg(&pdev->dev, "PBAR45SZ %#x\n", bar_sz);
if (b2b_bar == 4) {
if (ndev->b2b_off)
bar_sz -= 1;
@@ -2185,10 +2230,10 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
}
pci_write_config_byte(pdev, XEON_SBAR45SZ_OFFSET, bar_sz);
pci_read_config_byte(pdev, XEON_SBAR45SZ_OFFSET, &bar_sz);
- dev_dbg(ndev_dev(ndev), "SBAR45SZ %#x\n", bar_sz);
+ dev_dbg(&pdev->dev, "SBAR45SZ %#x\n", bar_sz);
} else {
pci_read_config_byte(pdev, XEON_PBAR4SZ_OFFSET, &bar_sz);
- dev_dbg(ndev_dev(ndev), "PBAR4SZ %#x\n", bar_sz);
+ dev_dbg(&pdev->dev, "PBAR4SZ %#x\n", bar_sz);
if (b2b_bar == 4) {
if (ndev->b2b_off)
bar_sz -= 1;
@@ -2197,10 +2242,10 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
}
pci_write_config_byte(pdev, XEON_SBAR4SZ_OFFSET, bar_sz);
pci_read_config_byte(pdev, XEON_SBAR4SZ_OFFSET, &bar_sz);
- dev_dbg(ndev_dev(ndev), "SBAR4SZ %#x\n", bar_sz);
+ dev_dbg(&pdev->dev, "SBAR4SZ %#x\n", bar_sz);
pci_read_config_byte(pdev, XEON_PBAR5SZ_OFFSET, &bar_sz);
- dev_dbg(ndev_dev(ndev), "PBAR5SZ %#x\n", bar_sz);
+ dev_dbg(&pdev->dev, "PBAR5SZ %#x\n", bar_sz);
if (b2b_bar == 5) {
if (ndev->b2b_off)
bar_sz -= 1;
@@ -2209,7 +2254,7 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
}
pci_write_config_byte(pdev, XEON_SBAR5SZ_OFFSET, bar_sz);
pci_read_config_byte(pdev, XEON_SBAR5SZ_OFFSET, &bar_sz);
- dev_dbg(ndev_dev(ndev), "SBAR5SZ %#x\n", bar_sz);
+ dev_dbg(&pdev->dev, "SBAR5SZ %#x\n", bar_sz);
}
/* SBAR01 hit by first part of the b2b bar */
@@ -2226,7 +2271,7 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
else
return -EIO;
- dev_dbg(ndev_dev(ndev), "SBAR01 %#018llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "SBAR01 %#018llx\n", bar_addr);
iowrite64(bar_addr, mmio + XEON_SBAR0BASE_OFFSET);
/* Other SBAR are normally hit by the PBAR xlat, except for b2b bar.
@@ -2237,26 +2282,26 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
bar_addr = addr->bar2_addr64 + (b2b_bar == 2 ? ndev->b2b_off : 0);
iowrite64(bar_addr, mmio + XEON_SBAR23BASE_OFFSET);
bar_addr = ioread64(mmio + XEON_SBAR23BASE_OFFSET);
- dev_dbg(ndev_dev(ndev), "SBAR23 %#018llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "SBAR23 %#018llx\n", bar_addr);
if (!ndev->bar4_split) {
bar_addr = addr->bar4_addr64 +
(b2b_bar == 4 ? ndev->b2b_off : 0);
iowrite64(bar_addr, mmio + XEON_SBAR45BASE_OFFSET);
bar_addr = ioread64(mmio + XEON_SBAR45BASE_OFFSET);
- dev_dbg(ndev_dev(ndev), "SBAR45 %#018llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "SBAR45 %#018llx\n", bar_addr);
} else {
bar_addr = addr->bar4_addr32 +
(b2b_bar == 4 ? ndev->b2b_off : 0);
iowrite32(bar_addr, mmio + XEON_SBAR4BASE_OFFSET);
bar_addr = ioread32(mmio + XEON_SBAR4BASE_OFFSET);
- dev_dbg(ndev_dev(ndev), "SBAR4 %#010llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "SBAR4 %#010llx\n", bar_addr);
bar_addr = addr->bar5_addr32 +
(b2b_bar == 5 ? ndev->b2b_off : 0);
iowrite32(bar_addr, mmio + XEON_SBAR5BASE_OFFSET);
bar_addr = ioread32(mmio + XEON_SBAR5BASE_OFFSET);
- dev_dbg(ndev_dev(ndev), "SBAR5 %#010llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "SBAR5 %#010llx\n", bar_addr);
}
/* setup incoming bar limits == base addrs (zero length windows) */
@@ -2264,26 +2309,26 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
bar_addr = addr->bar2_addr64 + (b2b_bar == 2 ? ndev->b2b_off : 0);
iowrite64(bar_addr, mmio + XEON_SBAR23LMT_OFFSET);
bar_addr = ioread64(mmio + XEON_SBAR23LMT_OFFSET);
- dev_dbg(ndev_dev(ndev), "SBAR23LMT %#018llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "SBAR23LMT %#018llx\n", bar_addr);
if (!ndev->bar4_split) {
bar_addr = addr->bar4_addr64 +
(b2b_bar == 4 ? ndev->b2b_off : 0);
iowrite64(bar_addr, mmio + XEON_SBAR45LMT_OFFSET);
bar_addr = ioread64(mmio + XEON_SBAR45LMT_OFFSET);
- dev_dbg(ndev_dev(ndev), "SBAR45LMT %#018llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "SBAR45LMT %#018llx\n", bar_addr);
} else {
bar_addr = addr->bar4_addr32 +
(b2b_bar == 4 ? ndev->b2b_off : 0);
iowrite32(bar_addr, mmio + XEON_SBAR4LMT_OFFSET);
bar_addr = ioread32(mmio + XEON_SBAR4LMT_OFFSET);
- dev_dbg(ndev_dev(ndev), "SBAR4LMT %#010llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "SBAR4LMT %#010llx\n", bar_addr);
bar_addr = addr->bar5_addr32 +
(b2b_bar == 5 ? ndev->b2b_off : 0);
iowrite32(bar_addr, mmio + XEON_SBAR5LMT_OFFSET);
bar_addr = ioread32(mmio + XEON_SBAR5LMT_OFFSET);
- dev_dbg(ndev_dev(ndev), "SBAR5LMT %#05llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "SBAR5LMT %#05llx\n", bar_addr);
}
/* zero incoming translation addrs */
@@ -2309,23 +2354,23 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
bar_addr = peer_addr->bar2_addr64;
iowrite64(bar_addr, mmio + XEON_PBAR23XLAT_OFFSET);
bar_addr = ioread64(mmio + XEON_PBAR23XLAT_OFFSET);
- dev_dbg(ndev_dev(ndev), "PBAR23XLAT %#018llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "PBAR23XLAT %#018llx\n", bar_addr);
if (!ndev->bar4_split) {
bar_addr = peer_addr->bar4_addr64;
iowrite64(bar_addr, mmio + XEON_PBAR45XLAT_OFFSET);
bar_addr = ioread64(mmio + XEON_PBAR45XLAT_OFFSET);
- dev_dbg(ndev_dev(ndev), "PBAR45XLAT %#018llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "PBAR45XLAT %#018llx\n", bar_addr);
} else {
bar_addr = peer_addr->bar4_addr32;
iowrite32(bar_addr, mmio + XEON_PBAR4XLAT_OFFSET);
bar_addr = ioread32(mmio + XEON_PBAR4XLAT_OFFSET);
- dev_dbg(ndev_dev(ndev), "PBAR4XLAT %#010llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "PBAR4XLAT %#010llx\n", bar_addr);
bar_addr = peer_addr->bar5_addr32;
iowrite32(bar_addr, mmio + XEON_PBAR5XLAT_OFFSET);
bar_addr = ioread32(mmio + XEON_PBAR5XLAT_OFFSET);
- dev_dbg(ndev_dev(ndev), "PBAR5XLAT %#010llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "PBAR5XLAT %#010llx\n", bar_addr);
}
/* set the translation offset for b2b registers */
@@ -2343,7 +2388,7 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
return -EIO;
/* B2B_XLAT_OFFSET is 64bit, but can only take 32bit writes */
- dev_dbg(ndev_dev(ndev), "B2BXLAT %#018llx\n", bar_addr);
+ dev_dbg(&pdev->dev, "B2BXLAT %#018llx\n", bar_addr);
iowrite32(bar_addr, mmio + XEON_B2B_XLAT_OFFSETL);
iowrite32(bar_addr >> 32, mmio + XEON_B2B_XLAT_OFFSETU);
@@ -2362,6 +2407,7 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
static int xeon_init_ntb(struct intel_ntb_dev *ndev)
{
+ struct device *dev = &ndev->ntb.pdev->dev;
int rc;
u32 ntb_ctl;
@@ -2377,7 +2423,7 @@ static int xeon_init_ntb(struct intel_ntb_dev *ndev)
switch (ndev->ntb.topo) {
case NTB_TOPO_PRI:
if (ndev->hwerr_flags & NTB_HWERR_SDOORBELL_LOCKUP) {
- dev_err(ndev_dev(ndev), "NTB Primary config disabled\n");
+ dev_err(dev, "NTB Primary config disabled\n");
return -EINVAL;
}
@@ -2395,7 +2441,7 @@ static int xeon_init_ntb(struct intel_ntb_dev *ndev)
case NTB_TOPO_SEC:
if (ndev->hwerr_flags & NTB_HWERR_SDOORBELL_LOCKUP) {
- dev_err(ndev_dev(ndev), "NTB Secondary config disabled\n");
+ dev_err(dev, "NTB Secondary config disabled\n");
return -EINVAL;
}
/* use half the spads for the peer */
@@ -2420,18 +2466,17 @@ static int xeon_init_ntb(struct intel_ntb_dev *ndev)
ndev->b2b_idx = b2b_mw_idx;
if (ndev->b2b_idx >= ndev->mw_count) {
- dev_dbg(ndev_dev(ndev),
+ dev_dbg(dev,
"b2b_mw_idx %d invalid for mw_count %u\n",
b2b_mw_idx, ndev->mw_count);
return -EINVAL;
}
- dev_dbg(ndev_dev(ndev),
- "setting up b2b mw idx %d means %d\n",
+ dev_dbg(dev, "setting up b2b mw idx %d means %d\n",
b2b_mw_idx, ndev->b2b_idx);
} else if (ndev->hwerr_flags & NTB_HWERR_B2BDOORBELL_BIT14) {
- dev_warn(ndev_dev(ndev), "Reduce doorbell count by 1\n");
+ dev_warn(dev, "Reduce doorbell count by 1\n");
ndev->db_count -= 1;
}
@@ -2472,7 +2517,7 @@ static int xeon_init_dev(struct intel_ntb_dev *ndev)
u8 ppd;
int rc, mem;
- pdev = ndev_pdev(ndev);
+ pdev = ndev->ntb.pdev;
switch (pdev->device) {
/* There is a Xeon hardware errata related to writes to SDOORBELL or
@@ -2548,14 +2593,14 @@ static int xeon_init_dev(struct intel_ntb_dev *ndev)
return -EIO;
ndev->ntb.topo = xeon_ppd_topo(ndev, ppd);
- dev_dbg(ndev_dev(ndev), "ppd %#x topo %s\n", ppd,
+ dev_dbg(&pdev->dev, "ppd %#x topo %s\n", ppd,
ntb_topo_string(ndev->ntb.topo));
if (ndev->ntb.topo == NTB_TOPO_NONE)
return -EINVAL;
if (ndev->ntb.topo != NTB_TOPO_SEC) {
ndev->bar4_split = xeon_ppd_bar4_split(ndev, ppd);
- dev_dbg(ndev_dev(ndev), "ppd %#x bar4_split %d\n",
+ dev_dbg(&pdev->dev, "ppd %#x bar4_split %d\n",
ppd, ndev->bar4_split);
} else {
/* This is a way for transparent BAR to figure out if we are
@@ -2565,7 +2610,7 @@ static int xeon_init_dev(struct intel_ntb_dev *ndev)
mem = pci_select_bars(pdev, IORESOURCE_MEM);
ndev->bar4_split = hweight32(mem) ==
HSX_SPLIT_BAR_MW_COUNT + 1;
- dev_dbg(ndev_dev(ndev), "mem %#x bar4_split %d\n",
+ dev_dbg(&pdev->dev, "mem %#x bar4_split %d\n",
mem, ndev->bar4_split);
}
@@ -2602,7 +2647,7 @@ static int intel_ntb_init_pci(struct intel_ntb_dev *ndev, struct pci_dev *pdev)
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (rc)
goto err_dma_mask;
- dev_warn(ndev_dev(ndev), "Cannot DMA highmem\n");
+ dev_warn(&pdev->dev, "Cannot DMA highmem\n");
}
rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
@@ -2610,7 +2655,7 @@ static int intel_ntb_init_pci(struct intel_ntb_dev *ndev, struct pci_dev *pdev)
rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (rc)
goto err_dma_mask;
- dev_warn(ndev_dev(ndev), "Cannot DMA consistent highmem\n");
+ dev_warn(&pdev->dev, "Cannot DMA consistent highmem\n");
}
ndev->self_mmio = pci_iomap(pdev, 0, 0);
@@ -2636,7 +2681,7 @@ err_pci_enable:
static void intel_ntb_deinit_pci(struct intel_ntb_dev *ndev)
{
- struct pci_dev *pdev = ndev_pdev(ndev);
+ struct pci_dev *pdev = ndev->ntb.pdev;
if (ndev->peer_mmio && ndev->peer_mmio != ndev->self_mmio)
pci_iounmap(pdev, ndev->peer_mmio);
@@ -2906,8 +2951,10 @@ static const struct intel_ntb_xlat_reg skx_sec_xlat = {
/* operations for primary side of local ntb */
static const struct ntb_dev_ops intel_ntb_ops = {
.mw_count = intel_ntb_mw_count,
- .mw_get_range = intel_ntb_mw_get_range,
+ .mw_get_align = intel_ntb_mw_get_align,
.mw_set_trans = intel_ntb_mw_set_trans,
+ .peer_mw_count = intel_ntb_peer_mw_count,
+ .peer_mw_get_addr = intel_ntb_peer_mw_get_addr,
.link_is_up = intel_ntb_link_is_up,
.link_enable = intel_ntb_link_enable,
.link_disable = intel_ntb_link_disable,
@@ -2932,8 +2979,10 @@ static const struct ntb_dev_ops intel_ntb_ops = {
static const struct ntb_dev_ops intel_ntb3_ops = {
.mw_count = intel_ntb_mw_count,
- .mw_get_range = intel_ntb_mw_get_range,
+ .mw_get_align = intel_ntb_mw_get_align,
.mw_set_trans = intel_ntb3_mw_set_trans,
+ .peer_mw_count = intel_ntb_peer_mw_count,
+ .peer_mw_get_addr = intel_ntb_peer_mw_get_addr,
.link_is_up = intel_ntb_link_is_up,
.link_enable = intel_ntb3_link_enable,
.link_disable = intel_ntb_link_disable,
@@ -3008,4 +3057,3 @@ static void __exit intel_ntb_pci_driver_exit(void)
debugfs_remove_recursive(debugfs_dir);
}
module_exit(intel_ntb_pci_driver_exit);
-