* [dpdk-stable] [PATCH] net/ixgbe: check jumbo frame enable parameter
@ 2018-11-01 7:55 wei zhao
2018-11-01 8:28 ` [dpdk-stable] [PATCH v2] " wei zhao
2018-11-01 17:46 ` [dpdk-stable] [dpdk-dev] [PATCH] " Stephen Hemminger
0 siblings, 2 replies; 7+ messages in thread
From: wei zhao @ 2018-11-01 7:55 UTC (permalink / raw)
To: wei.zhao1, dev; +Cc: stable, qi.z.zhang
There is necessary to do some check of max packet size boundary
for code safe when enable jumbo frame.
Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
---
drivers/net/ixgbe/ixgbe_rxtx.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
index 2f0262a..d304dee 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx.c
@@ -4814,6 +4814,34 @@ void __attribute__((cold))
return 0;
}
+int __attribute__((cold))
+ixgbe_dev_jumboenable_check(struct rte_eth_dev *dev,
+ uint16_t max_rx_pkt_len)
+{
+ struct rte_eth_dev_info dev_info;
+
+ ixgbe_dev_info_get(dev, &dev_info);
+
+ /* check that max packet size is within the allowed range */
+ if (max_rx_pkt_len < ETHER_MIN_MTU) {
+ PMD_INIT_LOG(ERR, "max packet size is too small.");
+ return -EINVAL;
+ }
+
+ if (max_rx_pkt_len > dev_info.max_rx_pktlen) {
+ PMD_INIT_LOG(ERR, "max packet size is too big.");
+ return -EINVAL;
+ }
+
+ /* check jumbo mode if needed */
+ if (max_rx_pkt_len < ETHER_MAX_LEN) {
+ PMD_INIT_LOG(ERR, "No need to enable jumbo.");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
/*
* Initializes Receive Unit.
*/
@@ -4865,6 +4893,9 @@ int __attribute__((cold))
* Configure jumbo frame support, if any.
*/
if (rx_conf->offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
+ if (ixgbe_dev_jumboenable_check(dev, rx_conf->max_rx_pkt_len))
+ return -EINVAL;
+
hlreg0 |= IXGBE_HLREG0_JUMBOEN;
maxfrs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
maxfrs &= 0x0000FFFF;
--
1.8.3.1
^ permalink raw reply [flat|nested] 7+ messages in thread
* [dpdk-stable] [PATCH v2] net/ixgbe: check jumbo frame enable parameter
2018-11-01 7:55 [dpdk-stable] [PATCH] net/ixgbe: check jumbo frame enable parameter wei zhao
@ 2018-11-01 8:28 ` wei zhao
2018-11-01 8:40 ` Zhao1, Wei
2018-11-01 17:46 ` [dpdk-stable] [dpdk-dev] [PATCH] " Stephen Hemminger
1 sibling, 1 reply; 7+ messages in thread
From: wei zhao @ 2018-11-01 8:28 UTC (permalink / raw)
To: wei.zhao1, dev; +Cc: stable, qi.z.zhang, yamashita.hideyuki, stephen
There is necessary to do some check of max packet size boundary
for code safe in order to avoid error in register setting
when enable jumbo.
Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
---
v2:
-add more log infomation and fix build issue
---
drivers/net/ixgbe/ixgbe_ethdev.c | 4 +---
drivers/net/ixgbe/ixgbe_ethdev.h | 2 ++
drivers/net/ixgbe/ixgbe_rxtx.c | 31 +++++++++++++++++++++++++++++++
3 files changed, 34 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 5a2c351..d65a911 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -173,8 +173,6 @@ static int ixgbe_dev_queue_stats_mapping_set(struct rte_eth_dev *eth_dev,
uint8_t is_rx);
static int ixgbe_fw_version_get(struct rte_eth_dev *dev, char *fw_version,
size_t fw_size);
-static void ixgbe_dev_info_get(struct rte_eth_dev *dev,
- struct rte_eth_dev_info *dev_info);
static const uint32_t *ixgbe_dev_supported_ptypes_get(struct rte_eth_dev *dev);
static void ixgbevf_dev_info_get(struct rte_eth_dev *dev,
struct rte_eth_dev_info *dev_info);
@@ -3692,7 +3690,7 @@ static int ixgbevf_dev_xstats_get_names(__rte_unused struct rte_eth_dev *dev,
return 0;
}
-static void
+void
ixgbe_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
{
struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.h b/drivers/net/ixgbe/ixgbe_ethdev.h
index d0b9396..a474be4 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.h
+++ b/drivers/net/ixgbe/ixgbe_ethdev.h
@@ -727,6 +727,8 @@ int ixgbe_action_rss_same(const struct rte_flow_action_rss *comp,
const struct rte_flow_action_rss *with);
int ixgbe_config_rss_filter(struct rte_eth_dev *dev,
struct ixgbe_rte_flow_rss_conf *conf, bool add);
+void ixgbe_dev_info_get(struct rte_eth_dev *dev,
+ struct rte_eth_dev_info *dev_info);
static inline int
ixgbe_ethertype_filter_lookup(struct ixgbe_filter_info *filter_info,
diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
index 2f0262a..94051ca 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx.c
@@ -4814,6 +4814,34 @@ void __attribute__((cold))
return 0;
}
+static int __attribute__((cold))
+ixgbe_dev_jumboenable_check(struct rte_eth_dev *dev,
+ uint16_t max_rx_pkt_len)
+{
+ struct rte_eth_dev_info dev_info;
+
+ ixgbe_dev_info_get(dev, &dev_info);
+
+ /* check that max packet size is within the allowed range */
+ if (max_rx_pkt_len < ETHER_MIN_MTU) {
+ PMD_INIT_LOG(ERR, "max packet size is too small.");
+ return -EINVAL;
+ }
+
+ if (max_rx_pkt_len > dev_info.max_rx_pktlen) {
+ PMD_INIT_LOG(ERR, "max packet size is too big.");
+ return -EINVAL;
+ }
+
+ /* check jumbo mode if needed */
+ if (max_rx_pkt_len < ETHER_MAX_LEN) {
+ PMD_INIT_LOG(ERR, "No need to enable jumbo.");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
/*
* Initializes Receive Unit.
*/
@@ -4865,6 +4893,9 @@ int __attribute__((cold))
* Configure jumbo frame support, if any.
*/
if (rx_conf->offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
+ if (ixgbe_dev_jumboenable_check(dev, rx_conf->max_rx_pkt_len))
+ return -EINVAL;
+
hlreg0 |= IXGBE_HLREG0_JUMBOEN;
maxfrs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
maxfrs &= 0x0000FFFF;
--
1.8.3.1
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [dpdk-stable] [PATCH v2] net/ixgbe: check jumbo frame enable parameter
2018-11-01 8:28 ` [dpdk-stable] [PATCH v2] " wei zhao
@ 2018-11-01 8:40 ` Zhao1, Wei
2018-11-05 16:34 ` Zhang, Qi Z
0 siblings, 1 reply; 7+ messages in thread
From: Zhao1, Wei @ 2018-11-01 8:40 UTC (permalink / raw)
To: dev; +Cc: stable, Zhang, Qi Z, yamashita.hideyuki, stephen
Add the background for this patch.
https://mails.dpdk.org/archives/dev/2018-November/117771.html
https://mails.dpdk.org/archives/dev/2018-November/117772.html
> -----Original Message-----
> From: Zhao1, Wei
> Sent: Thursday, November 1, 2018 4:29 PM
> To: Zhao1, Wei <wei.zhao1@intel.com>; dev@dpdk.org
> Cc: stable@dpdk.org; Zhang, Qi Z <qi.z.zhang@intel.com>;
> yamashita.hideyuki@po.ntt-tx.co.jp; stephen@networkplumber.org
> Subject: [PATCH v2] net/ixgbe: check jumbo frame enable parameter
>
> There is necessary to do some check of max packet size boundary for code
> safe in order to avoid error in register setting when enable jumbo.
>
> Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
>
> ---
>
> v2:
> -add more log infomation and fix build issue
> ---
> drivers/net/ixgbe/ixgbe_ethdev.c | 4 +---
> drivers/net/ixgbe/ixgbe_ethdev.h | 2 ++
> drivers/net/ixgbe/ixgbe_rxtx.c | 31
> +++++++++++++++++++++++++++++++
> 3 files changed, 34 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c
> b/drivers/net/ixgbe/ixgbe_ethdev.c
> index 5a2c351..d65a911 100644
> --- a/drivers/net/ixgbe/ixgbe_ethdev.c
> +++ b/drivers/net/ixgbe/ixgbe_ethdev.c
> @@ -173,8 +173,6 @@ static int
> ixgbe_dev_queue_stats_mapping_set(struct rte_eth_dev *eth_dev,
> uint8_t is_rx);
> static int ixgbe_fw_version_get(struct rte_eth_dev *dev, char *fw_version,
> size_t fw_size);
> -static void ixgbe_dev_info_get(struct rte_eth_dev *dev,
> - struct rte_eth_dev_info *dev_info);
> static const uint32_t *ixgbe_dev_supported_ptypes_get(struct
> rte_eth_dev *dev); static void ixgbevf_dev_info_get(struct rte_eth_dev
> *dev,
> struct rte_eth_dev_info *dev_info); @@ -
> 3692,7 +3690,7 @@ static int ixgbevf_dev_xstats_get_names(__rte_unused
> struct rte_eth_dev *dev,
> return 0;
> }
>
> -static void
> +void
> ixgbe_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info
> *dev_info) {
> struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev); diff --
> git a/drivers/net/ixgbe/ixgbe_ethdev.h b/drivers/net/ixgbe/ixgbe_ethdev.h
> index d0b9396..a474be4 100644
> --- a/drivers/net/ixgbe/ixgbe_ethdev.h
> +++ b/drivers/net/ixgbe/ixgbe_ethdev.h
> @@ -727,6 +727,8 @@ int ixgbe_action_rss_same(const struct
> rte_flow_action_rss *comp,
> const struct rte_flow_action_rss *with); int
> ixgbe_config_rss_filter(struct rte_eth_dev *dev,
> struct ixgbe_rte_flow_rss_conf *conf, bool add);
> +void ixgbe_dev_info_get(struct rte_eth_dev *dev,
> + struct rte_eth_dev_info *dev_info);
>
> static inline int
> ixgbe_ethertype_filter_lookup(struct ixgbe_filter_info *filter_info, diff --git
> a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c index
> 2f0262a..94051ca 100644
> --- a/drivers/net/ixgbe/ixgbe_rxtx.c
> +++ b/drivers/net/ixgbe/ixgbe_rxtx.c
> @@ -4814,6 +4814,34 @@ void __attribute__((cold))
> return 0;
> }
>
> +static int __attribute__((cold))
> +ixgbe_dev_jumboenable_check(struct rte_eth_dev *dev,
> + uint16_t max_rx_pkt_len)
> +{
> + struct rte_eth_dev_info dev_info;
> +
> + ixgbe_dev_info_get(dev, &dev_info);
> +
> + /* check that max packet size is within the allowed range */
> + if (max_rx_pkt_len < ETHER_MIN_MTU) {
> + PMD_INIT_LOG(ERR, "max packet size is too small.");
> + return -EINVAL;
> + }
> +
> + if (max_rx_pkt_len > dev_info.max_rx_pktlen) {
> + PMD_INIT_LOG(ERR, "max packet size is too big.");
> + return -EINVAL;
> + }
> +
> + /* check jumbo mode if needed */
> + if (max_rx_pkt_len < ETHER_MAX_LEN) {
> + PMD_INIT_LOG(ERR, "No need to enable jumbo.");
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> /*
> * Initializes Receive Unit.
> */
> @@ -4865,6 +4893,9 @@ int __attribute__((cold))
> * Configure jumbo frame support, if any.
> */
> if (rx_conf->offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
> + if (ixgbe_dev_jumboenable_check(dev, rx_conf-
> >max_rx_pkt_len))
> + return -EINVAL;
> +
> hlreg0 |= IXGBE_HLREG0_JUMBOEN;
> maxfrs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
> maxfrs &= 0x0000FFFF;
> --
> 1.8.3.1
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [dpdk-stable] [dpdk-dev] [PATCH] net/ixgbe: check jumbo frame enable parameter
2018-11-01 7:55 [dpdk-stable] [PATCH] net/ixgbe: check jumbo frame enable parameter wei zhao
2018-11-01 8:28 ` [dpdk-stable] [PATCH v2] " wei zhao
@ 2018-11-01 17:46 ` Stephen Hemminger
2018-11-05 9:13 ` Zhao1, Wei
1 sibling, 1 reply; 7+ messages in thread
From: Stephen Hemminger @ 2018-11-01 17:46 UTC (permalink / raw)
To: wei zhao; +Cc: dev, stable, qi.z.zhang
On Thu, 1 Nov 2018 15:55:26 +0800
wei zhao <wei.zhao1@intel.com> wrote:
> + /* check that max packet size is within the allowed range */
> + if (max_rx_pkt_len < ETHER_MIN_MTU) {
> + PMD_INIT_LOG(ERR, "max packet size is too small.");
> + return -EINVAL;
> + }
> +
> + if (max_rx_pkt_len > dev_info.max_rx_pktlen) {
> + PMD_INIT_LOG(ERR, "max packet size is too big.");
> + return -EINVAL;
> + }
> +
> + /* check jumbo mode if needed */
> + if (max_rx_pkt_len < ETHER_MAX_LEN) {
> + PMD_INIT_LOG(ERR, "No need to enable jumbo.");
> + return -EINVAL;
> + }
> +
Yes, these checks are needed and for other devices as well.
Why not add them into rte_ethdev instead?
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [dpdk-stable] [dpdk-dev] [PATCH] net/ixgbe: check jumbo frame enable parameter
2018-11-01 17:46 ` [dpdk-stable] [dpdk-dev] [PATCH] " Stephen Hemminger
@ 2018-11-05 9:13 ` Zhao1, Wei
0 siblings, 0 replies; 7+ messages in thread
From: Zhao1, Wei @ 2018-11-05 9:13 UTC (permalink / raw)
To: Stephen Hemminger; +Cc: dev, stable, Zhang, Qi Z
> -----Original Message-----
> From: Stephen Hemminger [mailto:stephen@networkplumber.org]
> Sent: Friday, November 2, 2018 1:46 AM
> To: Zhao1, Wei <wei.zhao1@intel.com>
> Cc: dev@dpdk.org; stable@dpdk.org; Zhang, Qi Z <qi.z.zhang@intel.com>
> Subject: Re: [dpdk-dev] [PATCH] net/ixgbe: check jumbo frame enable
> parameter
>
> On Thu, 1 Nov 2018 15:55:26 +0800
> wei zhao <wei.zhao1@intel.com> wrote:
>
> > + /* check that max packet size is within the allowed range */
> > + if (max_rx_pkt_len < ETHER_MIN_MTU) {
> > + PMD_INIT_LOG(ERR, "max packet size is too small.");
> > + return -EINVAL;
> > + }
> > +
> > + if (max_rx_pkt_len > dev_info.max_rx_pktlen) {
> > + PMD_INIT_LOG(ERR, "max packet size is too big.");
> > + return -EINVAL;
> > + }
> > +
> > + /* check jumbo mode if needed */
> > + if (max_rx_pkt_len < ETHER_MAX_LEN) {
> > + PMD_INIT_LOG(ERR, "No need to enable jumbo.");
> > + return -EINVAL;
> > + }
> > +
>
> Yes, these checks are needed and for other devices as well.
> Why not add them into rte_ethdev instead?
I am not familiar with NIC except ixgbe and i40e, I am not sure property of other NIC and rationality of these check....
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [dpdk-stable] [PATCH v2] net/ixgbe: check jumbo frame enable parameter
2018-11-01 8:40 ` Zhao1, Wei
@ 2018-11-05 16:34 ` Zhang, Qi Z
2018-11-06 2:49 ` Zhao1, Wei
0 siblings, 1 reply; 7+ messages in thread
From: Zhang, Qi Z @ 2018-11-05 16:34 UTC (permalink / raw)
To: Zhao1, Wei, dev; +Cc: stable, yamashita.hideyuki, stephen
Hi Wei:
> -----Original Message-----
> From: Zhao1, Wei
> Sent: Thursday, November 1, 2018 1:40 AM
> To: dev@dpdk.org
> Cc: stable@dpdk.org; Zhang, Qi Z <qi.z.zhang@intel.com>;
> yamashita.hideyuki@po.ntt-tx.co.jp; stephen@networkplumber.org
> Subject: RE: [PATCH v2] net/ixgbe: check jumbo frame enable parameter
>
> Add the background for this patch.
> https://mails.dpdk.org/archives/dev/2018-November/117771.html
> https://mails.dpdk.org/archives/dev/2018-November/117772.html
>
>
>
> > -----Original Message-----
> > From: Zhao1, Wei
> > Sent: Thursday, November 1, 2018 4:29 PM
> > To: Zhao1, Wei <wei.zhao1@intel.com>; dev@dpdk.org
> > Cc: stable@dpdk.org; Zhang, Qi Z <qi.z.zhang@intel.com>;
> > yamashita.hideyuki@po.ntt-tx.co.jp; stephen@networkplumber.org
> > Subject: [PATCH v2] net/ixgbe: check jumbo frame enable parameter
> >
> > There is necessary to do some check of max packet size boundary for
> > code safe in order to avoid error in register setting when enable jumbo.
> >
> > Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
> >
> > ---
> >
> > v2:
> > -add more log infomation and fix build issue
> > ---
> > drivers/net/ixgbe/ixgbe_ethdev.c | 4 +---
> > drivers/net/ixgbe/ixgbe_ethdev.h | 2 ++
> > drivers/net/ixgbe/ixgbe_rxtx.c | 31
> > +++++++++++++++++++++++++++++++
> > 3 files changed, 34 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c
> > b/drivers/net/ixgbe/ixgbe_ethdev.c
> > index 5a2c351..d65a911 100644
> > --- a/drivers/net/ixgbe/ixgbe_ethdev.c
> > +++ b/drivers/net/ixgbe/ixgbe_ethdev.c
> > @@ -173,8 +173,6 @@ static int
> > ixgbe_dev_queue_stats_mapping_set(struct rte_eth_dev *eth_dev,
> > uint8_t is_rx);
> > static int ixgbe_fw_version_get(struct rte_eth_dev *dev, char
> *fw_version,
> > size_t fw_size);
> > -static void ixgbe_dev_info_get(struct rte_eth_dev *dev,
> > - struct rte_eth_dev_info *dev_info);
> > static const uint32_t *ixgbe_dev_supported_ptypes_get(struct
> > rte_eth_dev *dev); static void ixgbevf_dev_info_get(struct
> > rte_eth_dev *dev,
> > struct rte_eth_dev_info *dev_info); @@ -
> > 3692,7 +3690,7 @@ static int ixgbevf_dev_xstats_get_names(__rte_unused
> > struct rte_eth_dev *dev,
> > return 0;
> > }
> >
> > -static void
> > +void
> > ixgbe_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info
> > *dev_info) {
> > struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev); diff --
> > git a/drivers/net/ixgbe/ixgbe_ethdev.h
> > b/drivers/net/ixgbe/ixgbe_ethdev.h
> > index d0b9396..a474be4 100644
> > --- a/drivers/net/ixgbe/ixgbe_ethdev.h
> > +++ b/drivers/net/ixgbe/ixgbe_ethdev.h
> > @@ -727,6 +727,8 @@ int ixgbe_action_rss_same(const struct
> > rte_flow_action_rss *comp,
> > const struct rte_flow_action_rss *with); int
> > ixgbe_config_rss_filter(struct rte_eth_dev *dev,
> > struct ixgbe_rte_flow_rss_conf *conf, bool add);
> > +void ixgbe_dev_info_get(struct rte_eth_dev *dev,
> > + struct rte_eth_dev_info *dev_info);
> >
> > static inline int
> > ixgbe_ethertype_filter_lookup(struct ixgbe_filter_info *filter_info,
> > diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c
> > b/drivers/net/ixgbe/ixgbe_rxtx.c index 2f0262a..94051ca 100644
> > --- a/drivers/net/ixgbe/ixgbe_rxtx.c
> > +++ b/drivers/net/ixgbe/ixgbe_rxtx.c
> > @@ -4814,6 +4814,34 @@ void __attribute__((cold))
> > return 0;
> > }
> >
> > +static int __attribute__((cold))
> > +ixgbe_dev_jumboenable_check(struct rte_eth_dev *dev,
> > + uint16_t max_rx_pkt_len)
it's better to return Boolean for this function
> > +{
> > + struct rte_eth_dev_info dev_info;
> > +
> > + ixgbe_dev_info_get(dev, &dev_info);
> > +
> > + /* check that max packet size is within the allowed range */
> > + if (max_rx_pkt_len < ETHER_MIN_MTU) {
> > + PMD_INIT_LOG(ERR, "max packet size is too small.");
> > + return -EINVAL;
> > + }
Why this is only needed for DEV_RX_OFFLOAD_JUMBO_FRAME?
And we will compare to ETHER_MAX_LEN which is a bigger value, this looks redundant.
> > +
> > + if (max_rx_pkt_len > dev_info.max_rx_pktlen) {
> > + PMD_INIT_LOG(ERR, "max packet size is too big.");
> > + return -EINVAL;
> > + }
dev_info.max_rx_pktlen = 15872, it should be replaced by a macro, then we don't need to call ixgbe_dev_info_get here.
and why this is only needed for DEV_RX_OFFLOAD_JUMBO_FRAME?
> > +
> > + /* check jumbo mode if needed */
> > + if (max_rx_pkt_len < ETHER_MAX_LEN) {
> > + PMD_INIT_LOG(ERR, "No need to enable jumbo.");
> > + return -EINVAL;
And I agree with Stephen's comment,
Looks all of these is common for all drivers, it should be moved to ether layer.
> > + }
> > +
> > + return 0;
> > +}
> > +
> > /*
> > * Initializes Receive Unit.
> > */
> > @@ -4865,6 +4893,9 @@ int __attribute__((cold))
> > * Configure jumbo frame support, if any.
> > */
> > if (rx_conf->offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
> > + if (ixgbe_dev_jumboenable_check(dev, rx_conf-
> > >max_rx_pkt_len))
> > + return -EINVAL;
> > +
> > hlreg0 |= IXGBE_HLREG0_JUMBOEN;
> > maxfrs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
> > maxfrs &= 0x0000FFFF;
> > --
> > 1.8.3.1
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [dpdk-stable] [PATCH v2] net/ixgbe: check jumbo frame enable parameter
2018-11-05 16:34 ` Zhang, Qi Z
@ 2018-11-06 2:49 ` Zhao1, Wei
0 siblings, 0 replies; 7+ messages in thread
From: Zhao1, Wei @ 2018-11-06 2:49 UTC (permalink / raw)
To: Zhang, Qi Z, dev; +Cc: stable, yamashita.hideyuki, stephen
> -----Original Message-----
> From: Zhang, Qi Z
> Sent: Tuesday, November 6, 2018 12:34 AM
> To: Zhao1, Wei <wei.zhao1@intel.com>; dev@dpdk.org
> Cc: stable@dpdk.org; yamashita.hideyuki@po.ntt-tx.co.jp;
> stephen@networkplumber.org
> Subject: RE: [PATCH v2] net/ixgbe: check jumbo frame enable parameter
>
> Hi Wei:
>
> > -----Original Message-----
> > From: Zhao1, Wei
> > Sent: Thursday, November 1, 2018 1:40 AM
> > To: dev@dpdk.org
> > Cc: stable@dpdk.org; Zhang, Qi Z <qi.z.zhang@intel.com>;
> > yamashita.hideyuki@po.ntt-tx.co.jp; stephen@networkplumber.org
> > Subject: RE: [PATCH v2] net/ixgbe: check jumbo frame enable parameter
> >
> > Add the background for this patch.
> > https://mails.dpdk.org/archives/dev/2018-November/117771.html
> > https://mails.dpdk.org/archives/dev/2018-November/117772.html
> >
> >
> >
> > > -----Original Message-----
> > > From: Zhao1, Wei
> > > Sent: Thursday, November 1, 2018 4:29 PM
> > > To: Zhao1, Wei <wei.zhao1@intel.com>; dev@dpdk.org
> > > Cc: stable@dpdk.org; Zhang, Qi Z <qi.z.zhang@intel.com>;
> > > yamashita.hideyuki@po.ntt-tx.co.jp; stephen@networkplumber.org
> > > Subject: [PATCH v2] net/ixgbe: check jumbo frame enable parameter
> > >
> > > There is necessary to do some check of max packet size boundary for
> > > code safe in order to avoid error in register setting when enable jumbo.
> > >
> > > Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
> > >
> > > ---
> > >
> > > v2:
> > > -add more log infomation and fix build issue
> > > ---
> > > drivers/net/ixgbe/ixgbe_ethdev.c | 4 +---
> > > drivers/net/ixgbe/ixgbe_ethdev.h | 2 ++
> > > drivers/net/ixgbe/ixgbe_rxtx.c | 31
> > > +++++++++++++++++++++++++++++++
> > > 3 files changed, 34 insertions(+), 3 deletions(-)
> > >
> > > diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c
> > > b/drivers/net/ixgbe/ixgbe_ethdev.c
> > > index 5a2c351..d65a911 100644
> > > --- a/drivers/net/ixgbe/ixgbe_ethdev.c
> > > +++ b/drivers/net/ixgbe/ixgbe_ethdev.c
> > > @@ -173,8 +173,6 @@ static int
> > > ixgbe_dev_queue_stats_mapping_set(struct rte_eth_dev *eth_dev,
> > > uint8_t is_rx);
> > > static int ixgbe_fw_version_get(struct rte_eth_dev *dev, char
> > *fw_version,
> > > size_t fw_size);
> > > -static void ixgbe_dev_info_get(struct rte_eth_dev *dev,
> > > - struct rte_eth_dev_info *dev_info);
> > > static const uint32_t *ixgbe_dev_supported_ptypes_get(struct
> > > rte_eth_dev *dev); static void ixgbevf_dev_info_get(struct
> > > rte_eth_dev *dev,
> > > struct rte_eth_dev_info *dev_info); @@ -
> > > 3692,7 +3690,7 @@ static int
> > > ixgbevf_dev_xstats_get_names(__rte_unused
> > > struct rte_eth_dev *dev,
> > > return 0;
> > > }
> > >
> > > -static void
> > > +void
> > > ixgbe_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info
> > > *dev_info) {
> > > struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev); diff --
> > > git a/drivers/net/ixgbe/ixgbe_ethdev.h
> > > b/drivers/net/ixgbe/ixgbe_ethdev.h
> > > index d0b9396..a474be4 100644
> > > --- a/drivers/net/ixgbe/ixgbe_ethdev.h
> > > +++ b/drivers/net/ixgbe/ixgbe_ethdev.h
> > > @@ -727,6 +727,8 @@ int ixgbe_action_rss_same(const struct
> > > rte_flow_action_rss *comp,
> > > const struct rte_flow_action_rss *with); int
> > > ixgbe_config_rss_filter(struct rte_eth_dev *dev,
> > > struct ixgbe_rte_flow_rss_conf *conf, bool add);
> > > +void ixgbe_dev_info_get(struct rte_eth_dev *dev,
> > > + struct rte_eth_dev_info *dev_info);
> > >
> > > static inline int
> > > ixgbe_ethertype_filter_lookup(struct ixgbe_filter_info
> > > *filter_info, diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c
> > > b/drivers/net/ixgbe/ixgbe_rxtx.c index 2f0262a..94051ca 100644
> > > --- a/drivers/net/ixgbe/ixgbe_rxtx.c
> > > +++ b/drivers/net/ixgbe/ixgbe_rxtx.c
> > > @@ -4814,6 +4814,34 @@ void __attribute__((cold))
> > > return 0;
> > > }
> > >
> > > +static int __attribute__((cold))
> > > +ixgbe_dev_jumboenable_check(struct rte_eth_dev *dev,
> > > + uint16_t max_rx_pkt_len)
>
> it's better to return Boolean for this function
Ok
>
> > > +{
> > > + struct rte_eth_dev_info dev_info;
> > > +
> > > + ixgbe_dev_info_get(dev, &dev_info);
> > > +
> > > + /* check that max packet size is within the allowed range */
> > > + if (max_rx_pkt_len < ETHER_MIN_MTU) {
> > > + PMD_INIT_LOG(ERR, "max packet size is too small.");
> > > + return -EINVAL;
> > > + }
>
> Why this is only needed for DEV_RX_OFFLOAD_JUMBO_FRAME?
> And we will compare to ETHER_MAX_LEN which is a bigger value, this looks
> redundant.
Ok, I will check that
>
> > > +
> > > + if (max_rx_pkt_len > dev_info.max_rx_pktlen) {
> > > + PMD_INIT_LOG(ERR, "max packet size is too big.");
> > > + return -EINVAL;
> > > + }
>
> dev_info.max_rx_pktlen = 15872, it should be replaced by a macro, then we
> don't need to call ixgbe_dev_info_get here.
> and why this is only needed for DEV_RX_OFFLOAD_JUMBO_FRAME?
> > > +
> > > + /* check jumbo mode if needed */
> > > + if (max_rx_pkt_len < ETHER_MAX_LEN) {
> > > + PMD_INIT_LOG(ERR, "No need to enable jumbo.");
> > > + return -EINVAL;
>
> And I agree with Stephen's comment,
> Looks all of these is common for all drivers, it should be moved to ether layer.
Ok， I will move to rte layer
>
> > > + }
> > > +
> > > + return 0;
> > > +}
> > > +
> > > /*
> > > * Initializes Receive Unit.
> > > */
> > > @@ -4865,6 +4893,9 @@ int __attribute__((cold))
> > > * Configure jumbo frame support, if any.
> > > */
> > > if (rx_conf->offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
> > > + if (ixgbe_dev_jumboenable_check(dev, rx_conf-
> > > >max_rx_pkt_len))
> > > + return -EINVAL;
> > > +
> > > hlreg0 |= IXGBE_HLREG0_JUMBOEN;
> > > maxfrs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
> > > maxfrs &= 0x0000FFFF;
> > > --
> > > 1.8.3.1
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2018-11-06 2:49 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-11-01 7:55 [dpdk-stable] [PATCH] net/ixgbe: check jumbo frame enable parameter wei zhao
2018-11-01 8:28 ` [dpdk-stable] [PATCH v2] " wei zhao
2018-11-01 8:40 ` Zhao1, Wei
2018-11-05 16:34 ` Zhang, Qi Z
2018-11-06 2:49 ` Zhao1, Wei
2018-11-01 17:46 ` [dpdk-stable] [dpdk-dev] [PATCH] " Stephen Hemminger
2018-11-05 9:13 ` Zhao1, Wei
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