* [PATCH] intel: Simplify DMA setting
@ 2022-01-04 0:15 ` Christophe JAILLET
0 siblings, 0 replies; 10+ messages in thread
From: Christophe JAILLET @ 2022-01-04 0:15 UTC (permalink / raw)
To: jesse.brandeburg, anthony.l.nguyen, davem, kuba
Cc: intel-wired-lan, netdev, linux-kernel, kernel-janitors,
Christophe JAILLET
As stated in [1], dma_set_mask() with a 64-bit mask will never fail if
dev->dma_mask is non-NULL.
So, if it fails, the 32 bits case will also fail for the same reason.
Simplify code and remove some dead code accordingly.
[1]: https://lkml.org/lkml/2021/6/7/398
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
drivers/net/ethernet/intel/e1000e/netdev.c | 22 ++++++-------------
drivers/net/ethernet/intel/i40e/i40e_main.c | 9 +++-----
drivers/net/ethernet/intel/iavf/iavf_main.c | 9 +++-----
drivers/net/ethernet/intel/ice/ice_main.c | 2 --
drivers/net/ethernet/intel/ixgb/ixgb_main.c | 19 +++++-----------
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 20 ++++++-----------
.../net/ethernet/intel/ixgbevf/ixgbevf_main.c | 20 +++++------------
7 files changed, 31 insertions(+), 70 deletions(-)
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 635a95927e93..4f6ee5c44f75 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -7385,9 +7385,9 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
resource_size_t flash_start, flash_len;
static int cards_found;
u16 aspm_disable_flag = 0;
- int bars, i, err, pci_using_dac;
u16 eeprom_data = 0;
u16 eeprom_apme_mask = E1000_EEPROM_APME;
+ int bars, i, err;
s32 ret_val = 0;
if (ei->flags2 & FLAG2_DISABLE_ASPM_L0S)
@@ -7401,17 +7401,11 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (err)
return err;
- pci_using_dac = 0;
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
- if (!err) {
- pci_using_dac = 1;
- } else {
- err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev,
- "No usable DMA configuration, aborting\n");
- goto err_dma;
- }
+ if (err) {
+ dev_err(&pdev->dev,
+ "No usable DMA configuration, aborting\n");
+ goto err_dma;
}
bars = pci_select_bars(pdev, IORESOURCE_MEM);
@@ -7547,10 +7541,8 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
netdev->priv_flags |= IFF_UNICAST_FLT;
- if (pci_using_dac) {
- netdev->features |= NETIF_F_HIGHDMA;
- netdev->vlan_features |= NETIF_F_HIGHDMA;
- }
+ netdev->features |= NETIF_F_HIGHDMA;
+ netdev->vlan_features |= NETIF_F_HIGHDMA;
/* MTU range: 68 - max_hw_frame_size */
netdev->min_mtu = ETH_MIN_MTU;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index ef3375e84821..ccd7e33aa80d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -15282,12 +15282,9 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
/* set up for high or low dma */
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (err) {
- err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev,
- "DMA configuration failed: 0x%x\n", err);
- goto err_dma;
- }
+ dev_err(&pdev->dev,
+ "DMA configuration failed: 0x%x\n", err);
+ goto err_dma;
}
/* set up pci connections */
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 504fea4e90fb..16c73ad1b0d3 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -4365,12 +4365,9 @@ static int iavf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (err) {
- err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev,
- "DMA configuration failed: 0x%x\n", err);
- goto err_dma;
- }
+ dev_err(&pdev->dev,
+ "DMA configuration failed: 0x%x\n", err);
+ goto err_dma;
}
err = pci_request_regions(pdev, iavf_driver_name);
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 476533f63e09..4016031e1ba1 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -4435,8 +4435,6 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
/* set up for high or low DMA */
err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
- if (err)
- err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
if (err) {
dev_err(dev, "DMA configuration failed: 0x%x\n", err);
return err;
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
index 99d481904ce6..affdefcca7e3 100644
--- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
@@ -361,7 +361,6 @@ ixgb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
struct net_device *netdev = NULL;
struct ixgb_adapter *adapter;
static int cards_found = 0;
- int pci_using_dac;
u8 addr[ETH_ALEN];
int i;
int err;
@@ -370,16 +369,10 @@ ixgb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (err)
return err;
- pci_using_dac = 0;
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
- if (!err) {
- pci_using_dac = 1;
- } else {
- err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (err) {
- pr_err("No usable DMA configuration, aborting\n");
- goto err_dma_mask;
- }
+ if (err) {
+ pr_err("No usable DMA configuration, aborting\n");
+ goto err_dma_mask;
}
err = pci_request_regions(pdev, ixgb_driver_name);
@@ -444,10 +437,8 @@ ixgb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
NETIF_F_HW_VLAN_CTAG_FILTER;
netdev->hw_features |= NETIF_F_RXCSUM;
- if (pci_using_dac) {
- netdev->features |= NETIF_F_HIGHDMA;
- netdev->vlan_features |= NETIF_F_HIGHDMA;
- }
+ netdev->features |= NETIF_F_HIGHDMA;
+ netdev->vlan_features |= NETIF_F_HIGHDMA;
/* MTU range: 68 - 16114 */
netdev->min_mtu = ETH_MIN_MTU;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index abb118f0ae69..2bfeeaac5ef8 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -10632,9 +10632,9 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
struct ixgbe_adapter *adapter = NULL;
struct ixgbe_hw *hw;
const struct ixgbe_info *ii = ixgbe_info_tbl[ent->driver_data];
- int i, err, pci_using_dac, expected_gts;
unsigned int indices = MAX_TX_QUEUES;
u8 part_str[IXGBE_PBANUM_LENGTH];
+ int i, err, expected_gts;
bool disable_dev = false;
#ifdef IXGBE_FCOE
u16 device_caps;
@@ -10654,16 +10654,11 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (err)
return err;
- if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
- pci_using_dac = 1;
- } else {
- err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev,
- "No usable DMA configuration, aborting\n");
- goto err_dma;
- }
- pci_using_dac = 0;
+ err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+ if (err) {
+ dev_err(&pdev->dev,
+ "No usable DMA configuration, aborting\n");
+ goto err_dma;
}
err = pci_request_mem_regions(pdev, ixgbe_driver_name);
@@ -10861,8 +10856,7 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
netdev->hw_features |= NETIF_F_NTUPLE |
NETIF_F_HW_TC;
- if (pci_using_dac)
- netdev->features |= NETIF_F_HIGHDMA;
+ netdev->features |= NETIF_F_HIGHDMA;
netdev->vlan_features |= netdev->features | NETIF_F_TSO_MANGLEID;
netdev->hw_enc_features |= netdev->vlan_features;
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 2459ecf65125..a54c23079da6 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -4511,22 +4511,17 @@ static int ixgbevf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
struct ixgbevf_adapter *adapter = NULL;
struct ixgbe_hw *hw = NULL;
const struct ixgbevf_info *ii = ixgbevf_info_tbl[ent->driver_data];
- int err, pci_using_dac;
bool disable_dev = false;
+ int err;
err = pci_enable_device(pdev);
if (err)
return err;
- if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
- pci_using_dac = 1;
- } else {
- err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev, "No usable DMA configuration, aborting\n");
- goto err_dma;
- }
- pci_using_dac = 0;
+ err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+ if (err) {
+ dev_err(&pdev->dev, "No usable DMA configuration, aborting\n");
+ goto err_dma;
}
err = pci_request_regions(pdev, ixgbevf_driver_name);
@@ -4606,10 +4601,7 @@ static int ixgbevf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
netdev->hw_features |= NETIF_F_GSO_PARTIAL |
IXGBEVF_GSO_PARTIAL_FEATURES;
- netdev->features = netdev->hw_features;
-
- if (pci_using_dac)
- netdev->features |= NETIF_F_HIGHDMA;
+ netdev->features = netdev->hw_features | NETIF_F_HIGHDMA;
netdev->vlan_features |= netdev->features | NETIF_F_TSO_MANGLEID;
netdev->mpls_features |= NETIF_F_SG |
--
2.32.0
^ permalink raw reply related [flat|nested] 10+ messages in thread
* [Intel-wired-lan] [PATCH] intel: Simplify DMA setting
@ 2022-01-04 0:15 ` Christophe JAILLET
0 siblings, 0 replies; 10+ messages in thread
From: Christophe JAILLET @ 2022-01-04 0:15 UTC (permalink / raw)
To: intel-wired-lan
As stated in [1], dma_set_mask() with a 64-bit mask will never fail if
dev->dma_mask is non-NULL.
So, if it fails, the 32 bits case will also fail for the same reason.
Simplify code and remove some dead code accordingly.
[1]: https://lkml.org/lkml/2021/6/7/398
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
drivers/net/ethernet/intel/e1000e/netdev.c | 22 ++++++-------------
drivers/net/ethernet/intel/i40e/i40e_main.c | 9 +++-----
drivers/net/ethernet/intel/iavf/iavf_main.c | 9 +++-----
drivers/net/ethernet/intel/ice/ice_main.c | 2 --
drivers/net/ethernet/intel/ixgb/ixgb_main.c | 19 +++++-----------
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 20 ++++++-----------
.../net/ethernet/intel/ixgbevf/ixgbevf_main.c | 20 +++++------------
7 files changed, 31 insertions(+), 70 deletions(-)
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 635a95927e93..4f6ee5c44f75 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -7385,9 +7385,9 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
resource_size_t flash_start, flash_len;
static int cards_found;
u16 aspm_disable_flag = 0;
- int bars, i, err, pci_using_dac;
u16 eeprom_data = 0;
u16 eeprom_apme_mask = E1000_EEPROM_APME;
+ int bars, i, err;
s32 ret_val = 0;
if (ei->flags2 & FLAG2_DISABLE_ASPM_L0S)
@@ -7401,17 +7401,11 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (err)
return err;
- pci_using_dac = 0;
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
- if (!err) {
- pci_using_dac = 1;
- } else {
- err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev,
- "No usable DMA configuration, aborting\n");
- goto err_dma;
- }
+ if (err) {
+ dev_err(&pdev->dev,
+ "No usable DMA configuration, aborting\n");
+ goto err_dma;
}
bars = pci_select_bars(pdev, IORESOURCE_MEM);
@@ -7547,10 +7541,8 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
netdev->priv_flags |= IFF_UNICAST_FLT;
- if (pci_using_dac) {
- netdev->features |= NETIF_F_HIGHDMA;
- netdev->vlan_features |= NETIF_F_HIGHDMA;
- }
+ netdev->features |= NETIF_F_HIGHDMA;
+ netdev->vlan_features |= NETIF_F_HIGHDMA;
/* MTU range: 68 - max_hw_frame_size */
netdev->min_mtu = ETH_MIN_MTU;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index ef3375e84821..ccd7e33aa80d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -15282,12 +15282,9 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
/* set up for high or low dma */
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (err) {
- err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev,
- "DMA configuration failed: 0x%x\n", err);
- goto err_dma;
- }
+ dev_err(&pdev->dev,
+ "DMA configuration failed: 0x%x\n", err);
+ goto err_dma;
}
/* set up pci connections */
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 504fea4e90fb..16c73ad1b0d3 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -4365,12 +4365,9 @@ static int iavf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (err) {
- err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev,
- "DMA configuration failed: 0x%x\n", err);
- goto err_dma;
- }
+ dev_err(&pdev->dev,
+ "DMA configuration failed: 0x%x\n", err);
+ goto err_dma;
}
err = pci_request_regions(pdev, iavf_driver_name);
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 476533f63e09..4016031e1ba1 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -4435,8 +4435,6 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
/* set up for high or low DMA */
err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
- if (err)
- err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
if (err) {
dev_err(dev, "DMA configuration failed: 0x%x\n", err);
return err;
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
index 99d481904ce6..affdefcca7e3 100644
--- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
@@ -361,7 +361,6 @@ ixgb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
struct net_device *netdev = NULL;
struct ixgb_adapter *adapter;
static int cards_found = 0;
- int pci_using_dac;
u8 addr[ETH_ALEN];
int i;
int err;
@@ -370,16 +369,10 @@ ixgb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (err)
return err;
- pci_using_dac = 0;
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
- if (!err) {
- pci_using_dac = 1;
- } else {
- err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (err) {
- pr_err("No usable DMA configuration, aborting\n");
- goto err_dma_mask;
- }
+ if (err) {
+ pr_err("No usable DMA configuration, aborting\n");
+ goto err_dma_mask;
}
err = pci_request_regions(pdev, ixgb_driver_name);
@@ -444,10 +437,8 @@ ixgb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
NETIF_F_HW_VLAN_CTAG_FILTER;
netdev->hw_features |= NETIF_F_RXCSUM;
- if (pci_using_dac) {
- netdev->features |= NETIF_F_HIGHDMA;
- netdev->vlan_features |= NETIF_F_HIGHDMA;
- }
+ netdev->features |= NETIF_F_HIGHDMA;
+ netdev->vlan_features |= NETIF_F_HIGHDMA;
/* MTU range: 68 - 16114 */
netdev->min_mtu = ETH_MIN_MTU;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index abb118f0ae69..2bfeeaac5ef8 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -10632,9 +10632,9 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
struct ixgbe_adapter *adapter = NULL;
struct ixgbe_hw *hw;
const struct ixgbe_info *ii = ixgbe_info_tbl[ent->driver_data];
- int i, err, pci_using_dac, expected_gts;
unsigned int indices = MAX_TX_QUEUES;
u8 part_str[IXGBE_PBANUM_LENGTH];
+ int i, err, expected_gts;
bool disable_dev = false;
#ifdef IXGBE_FCOE
u16 device_caps;
@@ -10654,16 +10654,11 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (err)
return err;
- if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
- pci_using_dac = 1;
- } else {
- err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev,
- "No usable DMA configuration, aborting\n");
- goto err_dma;
- }
- pci_using_dac = 0;
+ err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+ if (err) {
+ dev_err(&pdev->dev,
+ "No usable DMA configuration, aborting\n");
+ goto err_dma;
}
err = pci_request_mem_regions(pdev, ixgbe_driver_name);
@@ -10861,8 +10856,7 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
netdev->hw_features |= NETIF_F_NTUPLE |
NETIF_F_HW_TC;
- if (pci_using_dac)
- netdev->features |= NETIF_F_HIGHDMA;
+ netdev->features |= NETIF_F_HIGHDMA;
netdev->vlan_features |= netdev->features | NETIF_F_TSO_MANGLEID;
netdev->hw_enc_features |= netdev->vlan_features;
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 2459ecf65125..a54c23079da6 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -4511,22 +4511,17 @@ static int ixgbevf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
struct ixgbevf_adapter *adapter = NULL;
struct ixgbe_hw *hw = NULL;
const struct ixgbevf_info *ii = ixgbevf_info_tbl[ent->driver_data];
- int err, pci_using_dac;
bool disable_dev = false;
+ int err;
err = pci_enable_device(pdev);
if (err)
return err;
- if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
- pci_using_dac = 1;
- } else {
- err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev, "No usable DMA configuration, aborting\n");
- goto err_dma;
- }
- pci_using_dac = 0;
+ err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+ if (err) {
+ dev_err(&pdev->dev, "No usable DMA configuration, aborting\n");
+ goto err_dma;
}
err = pci_request_regions(pdev, ixgbevf_driver_name);
@@ -4606,10 +4601,7 @@ static int ixgbevf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
netdev->hw_features |= NETIF_F_GSO_PARTIAL |
IXGBEVF_GSO_PARTIAL_FEATURES;
- netdev->features = netdev->hw_features;
-
- if (pci_using_dac)
- netdev->features |= NETIF_F_HIGHDMA;
+ netdev->features = netdev->hw_features | NETIF_F_HIGHDMA;
netdev->vlan_features |= netdev->features | NETIF_F_TSO_MANGLEID;
netdev->mpls_features |= NETIF_F_SG |
--
2.32.0
^ permalink raw reply related [flat|nested] 10+ messages in thread
* Re: [PATCH] intel: Simplify DMA setting
2022-01-04 0:15 ` [Intel-wired-lan] " Christophe JAILLET
@ 2022-01-04 7:53 ` Christoph Hellwig
-1 siblings, 0 replies; 10+ messages in thread
From: Christoph Hellwig @ 2022-01-04 7:53 UTC (permalink / raw)
To: Christophe JAILLET
Cc: jesse.brandeburg, anthony.l.nguyen, davem, kuba, intel-wired-lan,
netdev, linux-kernel, kernel-janitors
Looks good,
Reviewed-by: Christoph Hellwig <hch@lst.de>
Although normally I'd expect one patch per driver.
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [Intel-wired-lan] [PATCH] intel: Simplify DMA setting
2022-01-04 0:15 ` [Intel-wired-lan] " Christophe JAILLET
@ 2022-01-04 13:29 ` Alexander Lobakin
-1 siblings, 0 replies; 10+ messages in thread
From: Alexander Lobakin @ 2022-01-04 13:29 UTC (permalink / raw)
To: Christophe JAILLET
Cc: Alexander Lobakin, Christoph Hellwig, jesse.brandeburg,
anthony.l.nguyen, davem, kuba, netdev, kernel-janitors,
intel-wired-lan, linux-kernel
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Tue, 4 Jan 2022 01:15:20 +0100
> As stated in [1], dma_set_mask() with a 64-bit mask will never fail if
> dev->dma_mask is non-NULL.
> So, if it fails, the 32 bits case will also fail for the same reason.
>
> Simplify code and remove some dead code accordingly.
>
> [1]: https://lkml.org/lkml/2021/6/7/398
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
> drivers/net/ethernet/intel/e1000e/netdev.c | 22 ++++++-------------
> drivers/net/ethernet/intel/i40e/i40e_main.c | 9 +++-----
> drivers/net/ethernet/intel/iavf/iavf_main.c | 9 +++-----
> drivers/net/ethernet/intel/ice/ice_main.c | 2 --
> drivers/net/ethernet/intel/ixgb/ixgb_main.c | 19 +++++-----------
> drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 20 ++++++-----------
> .../net/ethernet/intel/ixgbevf/ixgbevf_main.c | 20 +++++------------
> 7 files changed, 31 insertions(+), 70 deletions(-)
I like it, thanks!
Reviewed-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Tony might ask to split it into per-driver patches tho, will see.
--- 8< ---
Al
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Intel-wired-lan] [PATCH] intel: Simplify DMA setting
@ 2022-01-04 13:29 ` Alexander Lobakin
0 siblings, 0 replies; 10+ messages in thread
From: Alexander Lobakin @ 2022-01-04 13:29 UTC (permalink / raw)
To: intel-wired-lan
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Tue, 4 Jan 2022 01:15:20 +0100
> As stated in [1], dma_set_mask() with a 64-bit mask will never fail if
> dev->dma_mask is non-NULL.
> So, if it fails, the 32 bits case will also fail for the same reason.
>
> Simplify code and remove some dead code accordingly.
>
> [1]: https://lkml.org/lkml/2021/6/7/398
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
> drivers/net/ethernet/intel/e1000e/netdev.c | 22 ++++++-------------
> drivers/net/ethernet/intel/i40e/i40e_main.c | 9 +++-----
> drivers/net/ethernet/intel/iavf/iavf_main.c | 9 +++-----
> drivers/net/ethernet/intel/ice/ice_main.c | 2 --
> drivers/net/ethernet/intel/ixgb/ixgb_main.c | 19 +++++-----------
> drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 20 ++++++-----------
> .../net/ethernet/intel/ixgbevf/ixgbevf_main.c | 20 +++++------------
> 7 files changed, 31 insertions(+), 70 deletions(-)
I like it, thanks!
Reviewed-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Tony might ask to split it into per-driver patches tho, will see.
--- 8< ---
Al
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [Intel-wired-lan] [PATCH] intel: Simplify DMA setting
2022-01-04 13:29 ` Alexander Lobakin
@ 2022-01-04 21:56 ` Nguyen, Anthony L
-1 siblings, 0 replies; 10+ messages in thread
From: Nguyen, Anthony L @ 2022-01-04 21:56 UTC (permalink / raw)
To: Lobakin, Alexandr, christophe.jaillet
Cc: kernel-janitors, davem, linux-kernel, hch, kuba, Brandeburg,
Jesse, intel-wired-lan, netdev
On Tue, 2022-01-04 at 14:29 +0100, Alexander Lobakin wrote:
> From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> Date: Tue, 4 Jan 2022 01:15:20 +0100
>
> > As stated in [1], dma_set_mask() with a 64-bit mask will never fail
> > if
> > dev->dma_mask is non-NULL.
> > So, if it fails, the 32 bits case will also fail for the same
> > reason.
> >
> > Simplify code and remove some dead code accordingly.
> >
> > [1]: https://lkml.org/lkml/2021/6/7/398
> >
> > Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> > ---
> > drivers/net/ethernet/intel/e1000e/netdev.c | 22 ++++++---------
> > ----
> > drivers/net/ethernet/intel/i40e/i40e_main.c | 9 +++-----
> > drivers/net/ethernet/intel/iavf/iavf_main.c | 9 +++-----
> > drivers/net/ethernet/intel/ice/ice_main.c | 2 --
> > drivers/net/ethernet/intel/ixgb/ixgb_main.c | 19 +++++----------
> > -
> > drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 20 ++++++---------
> > --
> > .../net/ethernet/intel/ixgbevf/ixgbevf_main.c | 20 +++++----------
> > --
> > 7 files changed, 31 insertions(+), 70 deletions(-)
>
> I like it, thanks!
>
> Reviewed-by: Alexander Lobakin <alexandr.lobakin@intel.com>
>
> Tony might ask to split it into per-driver patches tho, will see.
Hi Christophe,
As mentioned by others, would mind breaking these per-driver?
Thanks,
Tony
>
> --- 8< ---
>
> Al
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Intel-wired-lan] [PATCH] intel: Simplify DMA setting
@ 2022-01-04 21:56 ` Nguyen, Anthony L
0 siblings, 0 replies; 10+ messages in thread
From: Nguyen, Anthony L @ 2022-01-04 21:56 UTC (permalink / raw)
To: intel-wired-lan
On Tue, 2022-01-04 at 14:29 +0100, Alexander Lobakin wrote:
> From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> Date: Tue, 4 Jan 2022 01:15:20 +0100
>
> > As stated in [1], dma_set_mask() with a 64-bit mask will never fail
> > if
> > dev->dma_mask is non-NULL.
> > So, if it fails, the 32 bits case will also fail for the same
> > reason.
> >
> > Simplify code and remove some dead code accordingly.
> >
> > [1]: https://lkml.org/lkml/2021/6/7/398
> >
> > Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> > ---
> > ?drivers/net/ethernet/intel/e1000e/netdev.c??? | 22 ++++++---------
> > ----
> > ?drivers/net/ethernet/intel/i40e/i40e_main.c?? |? 9 +++-----
> > ?drivers/net/ethernet/intel/iavf/iavf_main.c?? |? 9 +++-----
> > ?drivers/net/ethernet/intel/ice/ice_main.c???? |? 2 --
> > ?drivers/net/ethernet/intel/ixgb/ixgb_main.c?? | 19 +++++----------
> > -
> > ?drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 20 ++++++---------
> > --
> > ?.../net/ethernet/intel/ixgbevf/ixgbevf_main.c | 20 +++++----------
> > --
> > ?7 files changed, 31 insertions(+), 70 deletions(-)
>
> I like it, thanks!
>
> Reviewed-by: Alexander Lobakin <alexandr.lobakin@intel.com>
>
> Tony might ask to split it into per-driver patches tho, will see.
Hi Christophe,
As mentioned by others, would mind breaking these per-driver?
Thanks,
Tony
>
> --- 8< ---
>
> Al
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [Intel-wired-lan] [PATCH] intel: Simplify DMA setting
2022-01-04 21:56 ` Nguyen, Anthony L
@ 2022-01-05 6:31 ` Christophe JAILLET
-1 siblings, 0 replies; 10+ messages in thread
From: Christophe JAILLET @ 2022-01-05 6:31 UTC (permalink / raw)
To: Nguyen, Anthony L, Lobakin, Alexandr
Cc: kernel-janitors, davem, linux-kernel, hch, kuba, Brandeburg,
Jesse, intel-wired-lan, netdev
Le 04/01/2022 à 22:56, Nguyen, Anthony L a écrit :
> On Tue, 2022-01-04 at 14:29 +0100, Alexander Lobakin wrote:
>> From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
>> Date: Tue, 4 Jan 2022 01:15:20 +0100
>>
>> Reviewed-by: Alexander Lobakin <alexandr.lobakin@intel.com>
>>
>> Tony might ask to split it into per-driver patches tho, will see.
>
> Hi Christophe,
>
> As mentioned by others, would mind breaking these per-driver?
>
> Thanks,
> Tony
>
I'll do, but to much bureaucracy will kill us all.
CJ
>>
>> --- 8< ---
>>
>> Al
>
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Intel-wired-lan] [PATCH] intel: Simplify DMA setting
@ 2022-01-05 6:31 ` Christophe JAILLET
0 siblings, 0 replies; 10+ messages in thread
From: Christophe JAILLET @ 2022-01-05 6:31 UTC (permalink / raw)
To: intel-wired-lan
Le 04/01/2022 ? 22:56, Nguyen, Anthony L a ?crit?:
> On Tue, 2022-01-04 at 14:29 +0100, Alexander Lobakin wrote:
>> From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
>> Date: Tue, 4 Jan 2022 01:15:20 +0100
>>
>> Reviewed-by: Alexander Lobakin <alexandr.lobakin@intel.com>
>>
>> Tony might ask to split it into per-driver patches tho, will see.
>
> Hi Christophe,
>
> As mentioned by others, would mind breaking these per-driver?
>
> Thanks,
> Tony
>
I'll do, but to much bureaucracy will kill us all.
CJ
>>
>> --- 8< ---
>>
>> Al
>
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2022-01-05 6:31 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-01-04 0:15 [PATCH] intel: Simplify DMA setting Christophe JAILLET
2022-01-04 0:15 ` [Intel-wired-lan] " Christophe JAILLET
2022-01-04 7:53 ` Christoph Hellwig
2022-01-04 7:53 ` [Intel-wired-lan] " Christoph Hellwig
2022-01-04 13:29 ` Alexander Lobakin
2022-01-04 13:29 ` Alexander Lobakin
2022-01-04 21:56 ` Nguyen, Anthony L
2022-01-04 21:56 ` Nguyen, Anthony L
2022-01-05 6:31 ` Christophe JAILLET
2022-01-05 6:31 ` Christophe JAILLET
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