* Re: the next chunk of iov_iter-net stuff for review
From: David Miller @ 2014-12-09 21:37 UTC (permalink / raw)
To: viro; +Cc: netdev, linux-kernel
In-Reply-To: <20141209212337.GK22149@ZenIV.linux.org.uk>
From: Al Viro <viro@ZenIV.linux.org.uk>
Date: Tue, 9 Dec 2014 21:23:37 +0000
> On Tue, Dec 09, 2014 at 04:17:12PM -0500, David Miller wrote:
>> From: Al Viro <viro@ZenIV.linux.org.uk>
>> Date: Tue, 9 Dec 2014 21:04:14 +0000
>>
>> > Well, I've got no comments whatsoever on the networking side of things;
>>
>> I've been away for more than 10 days, so I personally haven't had time
>> to review any of it.
>>
>> Why don't you respin and I'll try to allocate some review time myself?
>
> Umm... Do you want a rebase on top of current net-next/master?
Sure, why not?
^ permalink raw reply
* [net-next v2 13/13] i40e/i40evf: Convert macro to static inline
From: Jeff Kirsher @ 2014-12-09 21:26 UTC (permalink / raw)
To: davem; +Cc: Jeff Kirsher, netdev, nhorman, sassmann, jogreene,
Sergei Shtylyov
In-Reply-To: <1418160380-29847-1-git-send-email-jeffrey.t.kirsher@intel.com>
Inline functions are preferred over macros when they can be used
interchangeably.
CC: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
v2:
- remove unnecessary parens in the return statement as suggested
by Sergei Shtylyov
drivers/net/ethernet/intel/i40e/i40e_type.h | 5 ++++-
drivers/net/ethernet/intel/i40evf/i40e_type.h | 5 ++++-
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
index 844421f..c1f2eb9 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
@@ -481,7 +481,10 @@ struct i40e_hw {
u32 debug_mask;
};
-#define i40e_is_vf(_hw) ((_hw)->mac.type == I40E_MAC_VF)
+static inline bool i40e_is_vf(struct i40e_hw *hw)
+{
+ return hw->mac.type == I40E_MAC_VF;
+}
struct i40e_driver_version {
u8 major_version;
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_type.h b/drivers/net/ethernet/intel/i40evf/i40e_type.h
index d8175cd..68aec11 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_type.h
@@ -475,7 +475,10 @@ struct i40e_hw {
u32 debug_mask;
};
-#define i40e_is_vf(_hw) ((_hw)->mac.type == I40E_MAC_VF)
+static inline bool i40e_is_vf(struct i40e_hw *hw)
+{
+ return hw->mac.type == I40E_MAC_VF;
+}
struct i40e_driver_version {
u8 major_version;
--
1.9.3
^ permalink raw reply related
* [net-next v2 12/13] i40e: add to NVM update debug message
From: Jeff Kirsher @ 2014-12-09 21:26 UTC (permalink / raw)
To: davem; +Cc: Shannon Nelson, netdev, nhorman, sassmann, jogreene, Jeff Kirsher
In-Reply-To: <1418160380-29847-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Shannon Nelson <shannon.nelson@intel.com>
Add a little more state context to an NVM update debug message.
Change-ID: I512160259052bcdbe5bdf1adf403ab2bf7984970
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/i40e/i40e_nvm.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index 1613ef4..3e70f2e 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -806,8 +806,10 @@ static enum i40e_nvmupd_cmd i40e_nvmupd_validate_command(struct i40e_hw *hw,
}
break;
}
- i40e_debug(hw, I40E_DEBUG_NVM, "%s\n",
- i40e_nvm_update_state_str[upd_cmd]);
+ i40e_debug(hw, I40E_DEBUG_NVM, "%s state %d nvm_release_on_hold %d\n",
+ i40e_nvm_update_state_str[upd_cmd],
+ hw->nvmupd_state,
+ hw->aq.nvm_release_on_done);
if (upd_cmd == I40E_NVMUPD_INVALID) {
*errno = -EFAULT;
--
1.9.3
^ permalink raw reply related
* [net-next v2 11/13] i40e: check for AQ timeout in aq_rc decode
From: Jeff Kirsher @ 2014-12-09 21:26 UTC (permalink / raw)
To: davem; +Cc: Shannon Nelson, netdev, nhorman, sassmann, jogreene, Jeff Kirsher
In-Reply-To: <1418160380-29847-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Shannon Nelson <shannon.nelson@intel.com>
Decoding the AQ return code is great except when the AQ send timed out
and there's no return code set. This changes the handy decoder
interface to help catch and properly report the condition as a useful
errno rather than returning a misleading '0'.
Change-ID: I07a1f94f921606da49ffac7837bcdc37cd8222eb
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/i40e/i40e_adminq.h | 7 +++++-
drivers/net/ethernet/intel/i40e/i40e_nvm.c | 33 ++++++++++++++++---------
drivers/net/ethernet/intel/i40evf/i40e_adminq.h | 7 +++++-
3 files changed, 33 insertions(+), 14 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.h b/drivers/net/ethernet/intel/i40e/i40e_adminq.h
index 2c68bf7..564d0b0 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.h
@@ -28,6 +28,7 @@
#define _I40E_ADMINQ_H_
#include "i40e_osdep.h"
+#include "i40e_status.h"
#include "i40e_adminq_cmd.h"
#define I40E_ADMINQ_DESC(R, i) \
@@ -108,7 +109,7 @@ struct i40e_adminq_info {
* i40e_aq_rc_to_posix - convert errors to user-land codes
* aq_rc: AdminQ error code to convert
**/
-static inline int i40e_aq_rc_to_posix(u16 aq_rc)
+static inline int i40e_aq_rc_to_posix(u32 aq_ret, u16 aq_rc)
{
int aq_to_posix[] = {
0, /* I40E_AQ_RC_OK */
@@ -136,6 +137,10 @@ static inline int i40e_aq_rc_to_posix(u16 aq_rc)
-EFBIG, /* I40E_AQ_RC_EFBIG */
};
+ /* aq_rc is invalid if AQ timed out */
+ if (aq_ret == I40E_ERR_ADMIN_QUEUE_TIMEOUT)
+ return -EAGAIN;
+
if (aq_rc >= ARRAY_SIZE(aq_to_posix))
return -ERANGE;
return aq_to_posix[aq_rc];
diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index 0fc62fc..1613ef4 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -527,7 +527,8 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw,
case I40E_NVMUPD_READ_SA:
status = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
if (status) {
- *errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+ *errno = i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status);
} else {
status = i40e_nvmupd_nvm_read(hw, cmd, bytes, errno);
i40e_release_nvm(hw);
@@ -537,7 +538,8 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw,
case I40E_NVMUPD_READ_SNT:
status = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
if (status) {
- *errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+ *errno = i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status);
} else {
status = i40e_nvmupd_nvm_read(hw, cmd, bytes, errno);
if (status)
@@ -550,7 +552,8 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw,
case I40E_NVMUPD_WRITE_ERA:
status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);
if (status) {
- *errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+ *errno = i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status);
} else {
status = i40e_nvmupd_nvm_erase(hw, cmd, errno);
if (status)
@@ -563,7 +566,8 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw,
case I40E_NVMUPD_WRITE_SA:
status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);
if (status) {
- *errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+ *errno = i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status);
} else {
status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno);
if (status)
@@ -576,7 +580,8 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw,
case I40E_NVMUPD_WRITE_SNT:
status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);
if (status) {
- *errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+ *errno = i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status);
} else {
status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno);
if (status)
@@ -589,12 +594,14 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw,
case I40E_NVMUPD_CSUM_SA:
status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);
if (status) {
- *errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+ *errno = i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status);
} else {
status = i40e_update_nvm_checksum(hw);
if (status) {
*errno = hw->aq.asq_last_status ?
- i40e_aq_rc_to_posix(hw->aq.asq_last_status) :
+ i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status) :
-EIO;
i40e_release_nvm(hw);
} else {
@@ -691,7 +698,8 @@ static i40e_status i40e_nvmupd_state_writing(struct i40e_hw *hw,
status = i40e_update_nvm_checksum(hw);
if (status) {
*errno = hw->aq.asq_last_status ?
- i40e_aq_rc_to_posix(hw->aq.asq_last_status) :
+ i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status) :
-EIO;
hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
}
@@ -701,7 +709,8 @@ static i40e_status i40e_nvmupd_state_writing(struct i40e_hw *hw,
status = i40e_update_nvm_checksum(hw);
if (status)
*errno = hw->aq.asq_last_status ?
- i40e_aq_rc_to_posix(hw->aq.asq_last_status) :
+ i40e_aq_rc_to_posix(status,
+ hw->aq.asq_last_status) :
-EIO;
else
hw->aq.nvm_release_on_done = true;
@@ -839,7 +848,7 @@ static i40e_status i40e_nvmupd_nvm_read(struct i40e_hw *hw,
i40e_debug(hw, I40E_DEBUG_NVM,
"i40e_nvmupd_nvm_read status %d aq %d\n",
status, hw->aq.asq_last_status);
- *errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+ *errno = i40e_aq_rc_to_posix(status, hw->aq.asq_last_status);
}
return status;
@@ -873,7 +882,7 @@ static i40e_status i40e_nvmupd_nvm_erase(struct i40e_hw *hw,
i40e_debug(hw, I40E_DEBUG_NVM,
"i40e_nvmupd_nvm_erase status %d aq %d\n",
status, hw->aq.asq_last_status);
- *errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+ *errno = i40e_aq_rc_to_posix(status, hw->aq.asq_last_status);
}
return status;
@@ -909,7 +918,7 @@ static i40e_status i40e_nvmupd_nvm_write(struct i40e_hw *hw,
i40e_debug(hw, I40E_DEBUG_NVM,
"i40e_nvmupd_nvm_write status %d aq %d\n",
status, hw->aq.asq_last_status);
- *errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+ *errno = i40e_aq_rc_to_posix(status, hw->aq.asq_last_status);
}
return status;
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_adminq.h b/drivers/net/ethernet/intel/i40evf/i40e_adminq.h
index 0ffb8d1..6c31bf2 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_adminq.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_adminq.h
@@ -28,6 +28,7 @@
#define _I40E_ADMINQ_H_
#include "i40e_osdep.h"
+#include "i40e_status.h"
#include "i40e_adminq_cmd.h"
#define I40E_ADMINQ_DESC(R, i) \
@@ -108,7 +109,7 @@ struct i40e_adminq_info {
* i40e_aq_rc_to_posix - convert errors to user-land codes
* aq_rc: AdminQ error code to convert
**/
-static inline int i40e_aq_rc_to_posix(u16 aq_rc)
+static inline int i40e_aq_rc_to_posix(u32 aq_ret, u16 aq_rc)
{
int aq_to_posix[] = {
0, /* I40E_AQ_RC_OK */
@@ -136,6 +137,10 @@ static inline int i40e_aq_rc_to_posix(u16 aq_rc)
-EFBIG, /* I40E_AQ_RC_EFBIG */
};
+ /* aq_rc is invalid if AQ timed out */
+ if (aq_ret == I40E_ERR_ADMIN_QUEUE_TIMEOUT)
+ return -EAGAIN;
+
if (aq_rc >= ARRAY_SIZE(aq_to_posix))
return -ERANGE;
return aq_to_posix[aq_rc];
--
1.9.3
^ permalink raw reply related
* [net-next v2 09/13] i40e: fix up NVM update sm error handling
From: Jeff Kirsher @ 2014-12-09 21:26 UTC (permalink / raw)
To: davem; +Cc: Shannon Nelson, netdev, nhorman, sassmann, jogreene, Jeff Kirsher
In-Reply-To: <1418160380-29847-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Shannon Nelson <shannon.nelson@intel.com>
The state transitions after an error were not managed well, so
these changes get us back to the INIT state or don't transition
out of the INIT state after most errors.
Change-ID: I90aa0e4e348dc4f58cbcdce9c5d4b7fd35981c6c
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Michal Kosiarz <michal.kosiarz@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/i40e/i40e_nvm.c | 26 ++++++++++++++++----------
1 file changed, 16 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index f55e52b..f3d1c85 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -535,7 +535,10 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw,
*errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
} else {
status = i40e_nvmupd_nvm_read(hw, cmd, bytes, errno);
- hw->nvmupd_state = I40E_NVMUPD_STATE_READING;
+ if (status)
+ i40e_release_nvm(hw);
+ else
+ hw->nvmupd_state = I40E_NVMUPD_STATE_READING;
}
break;
@@ -571,7 +574,10 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw,
*errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
} else {
status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno);
- hw->nvmupd_state = I40E_NVMUPD_STATE_WRITING;
+ if (status)
+ i40e_release_nvm(hw);
+ else
+ hw->nvmupd_state = I40E_NVMUPD_STATE_WRITING;
}
break;
@@ -671,30 +677,30 @@ static i40e_status i40e_nvmupd_state_writing(struct i40e_hw *hw,
case I40E_NVMUPD_WRITE_LCB:
status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno);
- if (!status) {
+ if (!status)
hw->aq.nvm_release_on_done = true;
- hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
- }
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
break;
case I40E_NVMUPD_CSUM_CON:
status = i40e_update_nvm_checksum(hw);
- if (status)
+ if (status) {
*errno = hw->aq.asq_last_status ?
i40e_aq_rc_to_posix(hw->aq.asq_last_status) :
-EIO;
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
+ }
break;
case I40E_NVMUPD_CSUM_LCB:
status = i40e_update_nvm_checksum(hw);
- if (status) {
+ if (status)
*errno = hw->aq.asq_last_status ?
i40e_aq_rc_to_posix(hw->aq.asq_last_status) :
-EIO;
- } else {
+ else
hw->aq.nvm_release_on_done = true;
- hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
- }
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
break;
default:
--
1.9.3
^ permalink raw reply related
* [net-next v2 10/13] i40e: poll on NVM semaphore only if not other error
From: Jeff Kirsher @ 2014-12-09 21:26 UTC (permalink / raw)
To: davem; +Cc: Shannon Nelson, netdev, nhorman, sassmann, jogreene, Jeff Kirsher
In-Reply-To: <1418160380-29847-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Shannon Nelson <shannon.nelson@intel.com>
Only poll on the NVM semaphore if there's time left on a previous
reservation. Also, add a little more info to debug messages.
Change-ID: I2439bf870b95a28b810dcb5cca1c06440463cf8a
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/i40e/i40e_nvm.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index f3d1c85..0fc62fc 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -93,10 +93,15 @@ i40e_status i40e_acquire_nvm(struct i40e_hw *hw,
/* Store the timeout */
hw->nvm.hw_semaphore_timeout = I40E_MS_TO_GTIME(time_left) + gtime;
- if (ret_code) {
+ if (ret_code)
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVM acquire type %d failed time_left=%llu ret=%d aq_err=%d\n",
+ access, time_left, ret_code, hw->aq.asq_last_status);
+
+ if (ret_code && time_left) {
/* Poll until the current NVM owner timeouts */
timeout = I40E_MS_TO_GTIME(I40E_MAX_NVM_TIMEOUT) + gtime;
- while (gtime < timeout) {
+ while ((gtime < timeout) && time_left) {
usleep_range(10000, 20000);
gtime = rd32(hw, I40E_GLVFGEN_TIMER);
ret_code = i40e_aq_request_resource(hw,
@@ -112,8 +117,8 @@ i40e_status i40e_acquire_nvm(struct i40e_hw *hw,
if (ret_code) {
hw->nvm.hw_semaphore_timeout = 0;
i40e_debug(hw, I40E_DEBUG_NVM,
- "NVM acquire timed out, wait %llu ms before trying again.\n",
- time_left);
+ "NVM acquire timed out, wait %llu ms before trying again. status=%d aq_err=%d\n",
+ time_left, ret_code, hw->aq.asq_last_status);
}
}
--
1.9.3
^ permalink raw reply related
* [net-next v2 08/13] i40e: set max limit for access polling
From: Jeff Kirsher @ 2014-12-09 21:26 UTC (permalink / raw)
To: davem; +Cc: Shannon Nelson, netdev, nhorman, sassmann, jogreene, Jeff Kirsher
In-Reply-To: <1418160380-29847-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Shannon Nelson <shannon.nelson@intel.com>
Don't bother trying to set a smaller timeout on the polling,
just simplify the code and always use the max limit. Also,
rename a variable for clarity and fix a comment.
Change-ID: I0300c3562ccc4fd5fa3088f8ae52db0c1eb33af5
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Michal Kosiarz <michal.kosiarz@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/i40e/i40e_nvm.c | 21 ++++++++-------------
drivers/net/ethernet/intel/i40e/i40e_type.h | 2 +-
drivers/net/ethernet/intel/i40evf/i40e_type.h | 2 +-
3 files changed, 10 insertions(+), 15 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index 37f0f5f..f55e52b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -80,45 +80,40 @@ i40e_status i40e_acquire_nvm(struct i40e_hw *hw,
{
i40e_status ret_code = 0;
u64 gtime, timeout;
- u64 time = 0;
+ u64 time_left = 0;
if (hw->nvm.blank_nvm_mode)
goto i40e_i40e_acquire_nvm_exit;
ret_code = i40e_aq_request_resource(hw, I40E_NVM_RESOURCE_ID, access,
- 0, &time, NULL);
+ 0, &time_left, NULL);
/* Reading the Global Device Timer */
gtime = rd32(hw, I40E_GLVFGEN_TIMER);
/* Store the timeout */
- hw->nvm.hw_semaphore_timeout = I40E_MS_TO_GTIME(time) + gtime;
+ hw->nvm.hw_semaphore_timeout = I40E_MS_TO_GTIME(time_left) + gtime;
if (ret_code) {
- /* Set the polling timeout */
- if (time > I40E_MAX_NVM_TIMEOUT)
- timeout = I40E_MS_TO_GTIME(I40E_MAX_NVM_TIMEOUT)
- + gtime;
- else
- timeout = hw->nvm.hw_semaphore_timeout;
/* Poll until the current NVM owner timeouts */
+ timeout = I40E_MS_TO_GTIME(I40E_MAX_NVM_TIMEOUT) + gtime;
while (gtime < timeout) {
usleep_range(10000, 20000);
+ gtime = rd32(hw, I40E_GLVFGEN_TIMER);
ret_code = i40e_aq_request_resource(hw,
I40E_NVM_RESOURCE_ID,
- access, 0, &time,
+ access, 0, &time_left,
NULL);
if (!ret_code) {
hw->nvm.hw_semaphore_timeout =
- I40E_MS_TO_GTIME(time) + gtime;
+ I40E_MS_TO_GTIME(time_left) + gtime;
break;
}
- gtime = rd32(hw, I40E_GLVFGEN_TIMER);
}
if (ret_code) {
hw->nvm.hw_semaphore_timeout = 0;
i40e_debug(hw, I40E_DEBUG_NVM,
"NVM acquire timed out, wait %llu ms before trying again.\n",
- time);
+ time_left);
}
}
diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
index 306a23a..844421f 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
@@ -261,7 +261,7 @@ enum i40e_aq_resource_access_type {
};
struct i40e_nvm_info {
- u64 hw_semaphore_timeout; /* 2usec global time (GTIME resolution) */
+ u64 hw_semaphore_timeout; /* usec global time (GTIME resolution) */
u32 timeout; /* [ms] */
u16 sr_size; /* Shadow RAM size in words */
bool blank_nvm_mode; /* is NVM empty (no FW present)*/
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_type.h b/drivers/net/ethernet/intel/i40evf/i40e_type.h
index 9d472d6..d8175cd 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_type.h
@@ -260,7 +260,7 @@ enum i40e_aq_resource_access_type {
};
struct i40e_nvm_info {
- u64 hw_semaphore_timeout; /* 2usec global time (GTIME resolution) */
+ u64 hw_semaphore_timeout; /* usec global time (GTIME resolution) */
u32 timeout; /* [ms] */
u16 sr_size; /* Shadow RAM size in words */
bool blank_nvm_mode; /* is NVM empty (no FW present)*/
--
1.9.3
^ permalink raw reply related
* [net-next v2 07/13] i40e: remove unused nvm_semaphore_wait
From: Jeff Kirsher @ 2014-12-09 21:26 UTC (permalink / raw)
To: davem; +Cc: Shannon Nelson, netdev, nhorman, sassmann, jogreene, Jeff Kirsher
In-Reply-To: <1418160380-29847-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Shannon Nelson <shannon.nelson@intel.com>
The nvm_semaphore_wait field is set but never used, so let's
just get rid of it.
Change-ID: I2107bd29b69f99b1a61d7591d087429527c9d8fa
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Michal Kosiarz <michal.kosiarz@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/i40e/i40e_nvm.c | 2 --
drivers/net/ethernet/intel/i40e/i40e_type.h | 1 -
drivers/net/ethernet/intel/i40evf/i40e_type.h | 1 -
3 files changed, 4 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index df429bb..37f0f5f 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -116,8 +116,6 @@ i40e_status i40e_acquire_nvm(struct i40e_hw *hw,
}
if (ret_code) {
hw->nvm.hw_semaphore_timeout = 0;
- hw->nvm.hw_semaphore_wait =
- I40E_MS_TO_GTIME(time) + gtime;
i40e_debug(hw, I40E_DEBUG_NVM,
"NVM acquire timed out, wait %llu ms before trying again.\n",
time);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
index 3904dd8..306a23a 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
@@ -262,7 +262,6 @@ enum i40e_aq_resource_access_type {
struct i40e_nvm_info {
u64 hw_semaphore_timeout; /* 2usec global time (GTIME resolution) */
- u64 hw_semaphore_wait; /* - || - */
u32 timeout; /* [ms] */
u16 sr_size; /* Shadow RAM size in words */
bool blank_nvm_mode; /* is NVM empty (no FW present)*/
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_type.h b/drivers/net/ethernet/intel/i40evf/i40e_type.h
index 77abe17..9d472d6 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_type.h
@@ -261,7 +261,6 @@ enum i40e_aq_resource_access_type {
struct i40e_nvm_info {
u64 hw_semaphore_timeout; /* 2usec global time (GTIME resolution) */
- u64 hw_semaphore_wait; /* - || - */
u32 timeout; /* [ms] */
u16 sr_size; /* Shadow RAM size in words */
bool blank_nvm_mode; /* is NVM empty (no FW present)*/
--
1.9.3
^ permalink raw reply related
* [net-next v2 06/13] i40e: init NVM update state on adminq init
From: Jeff Kirsher @ 2014-12-09 21:26 UTC (permalink / raw)
To: davem; +Cc: Shannon Nelson, netdev, nhorman, sassmann, jogreene, Jeff Kirsher
In-Reply-To: <1418160380-29847-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Shannon Nelson <shannon.nelson@intel.com>
The adminq init is run after the EMPR that is triggered by the
NVM update. The final write command will cause the reset and
will want to wait for the ARQ event that signals the end of the
update, but the reset precludes the event being sent. The state
is probably already at INIT, but we set it so here anyway, and
clear the release_on_done flag as well.
Change-ID: Ie9d724a39e71f988741abc3d51b4cb198c7e0272
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Michal Kosiarz <michal.kosiarz@intel.com>
Acked-by: Kamil Krawczyk <kamil.krawczyk@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/i40e/i40e_adminq.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.c b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
index ebff11b..77f6254 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
@@ -617,6 +617,8 @@ i40e_status i40e_init_adminq(struct i40e_hw *hw)
/* pre-emptive resource lock release */
i40e_aq_release_resource(hw, I40E_NVM_RESOURCE_ID, 0, NULL);
+ hw->aq.nvm_release_on_done = false;
+ hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
ret_code = i40e_aq_set_hmc_resource_profile(hw,
I40E_HMC_PROFILE_DEFAULT,
--
1.9.3
^ permalink raw reply related
* [net-next v2 05/13] i40e: add range check to i40e_aq_rc_to_posix
From: Jeff Kirsher @ 2014-12-09 21:26 UTC (permalink / raw)
To: davem
Cc: Shannon Nelson, netdev, nhorman, sassmann, jogreene,
Sergei Shtylyov, Jeff Kirsher
In-Reply-To: <1418160380-29847-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Shannon Nelson <shannon.nelson@intel.com>
Just to be sure, add a range check to avoid any possible
array index-out-of-bound issues.
CC: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Change-ID: I9323bee6732c2a47599816e1d6c6b3a1f8dcbf54
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Michal Kosiarz <michal.kosiarz@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
v2:
- modified the patch to use ARRAY_SIZE() macro as suggested by Sergei Shtylyov
drivers/net/ethernet/intel/i40e/i40e_adminq.h | 2 ++
drivers/net/ethernet/intel/i40evf/i40e_adminq.h | 2 ++
2 files changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.h b/drivers/net/ethernet/intel/i40e/i40e_adminq.h
index 618fe96..2c68bf7 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.h
@@ -136,6 +136,8 @@ static inline int i40e_aq_rc_to_posix(u16 aq_rc)
-EFBIG, /* I40E_AQ_RC_EFBIG */
};
+ if (aq_rc >= ARRAY_SIZE(aq_to_posix))
+ return -ERANGE;
return aq_to_posix[aq_rc];
}
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_adminq.h b/drivers/net/ethernet/intel/i40evf/i40e_adminq.h
index d5d3c93..0ffb8d1 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_adminq.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_adminq.h
@@ -136,6 +136,8 @@ static inline int i40e_aq_rc_to_posix(u16 aq_rc)
-EFBIG, /* I40E_AQ_RC_EFBIG */
};
+ if (aq_rc >= ARRAY_SIZE(aq_to_posix))
+ return -ERANGE;
return aq_to_posix[aq_rc];
}
--
1.9.3
^ permalink raw reply related
* [net-next v2 04/13] i40e: rework debug messages for NVM update
From: Jeff Kirsher @ 2014-12-09 21:26 UTC (permalink / raw)
To: davem; +Cc: Shannon Nelson, netdev, nhorman, sassmann, jogreene, Jeff Kirsher
In-Reply-To: <1418160380-29847-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Shannon Nelson <shannon.nelson@intel.com>
Rework the debug messages in the NVM update state machine so that we can
turn them on and off dynamically rather than forcing a recompile/reload.
These can now be turned on with something like:
ethtool -s eth1 msglvl 0xf000008f
and off with:
ethtool -s eth1 msglvl 0xf000000f
The high 0xf0000000 gets the driver's attention that we want to change the
internal debug flags, and the 0x80 bit is the NVM debug.
Change-ID: I5efb9039400304b29a0fd6ddea3f47bb362e6661
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/i40e/i40e_nvm.c | 107 +++++++++++++++++++++--------
1 file changed, 80 insertions(+), 27 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index 25c4f9a..df429bb 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -61,7 +61,7 @@ i40e_status i40e_init_nvm(struct i40e_hw *hw)
} else { /* Blank programming mode */
nvm->blank_nvm_mode = true;
ret_code = I40E_ERR_NVM_BLANK_MODE;
- hw_dbg(hw, "NVM init error: unsupported blank mode.\n");
+ i40e_debug(hw, I40E_DEBUG_NVM, "NVM init error: unsupported blank mode.\n");
}
return ret_code;
@@ -118,8 +118,9 @@ i40e_status i40e_acquire_nvm(struct i40e_hw *hw,
hw->nvm.hw_semaphore_timeout = 0;
hw->nvm.hw_semaphore_wait =
I40E_MS_TO_GTIME(time) + gtime;
- hw_dbg(hw, "NVM acquire timed out, wait %llu ms before trying again.\n",
- time);
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVM acquire timed out, wait %llu ms before trying again.\n",
+ time);
}
}
@@ -160,7 +161,7 @@ static i40e_status i40e_poll_sr_srctl_done_bit(struct i40e_hw *hw)
udelay(5);
}
if (ret_code == I40E_ERR_TIMEOUT)
- hw_dbg(hw, "Done bit in GLNVM_SRCTL not set\n");
+ i40e_debug(hw, I40E_DEBUG_NVM, "Done bit in GLNVM_SRCTL not set");
return ret_code;
}
@@ -179,7 +180,9 @@ i40e_status i40e_read_nvm_word(struct i40e_hw *hw, u16 offset,
u32 sr_reg;
if (offset >= hw->nvm.sr_size) {
- hw_dbg(hw, "NVM read error: Offset beyond Shadow RAM limit.\n");
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVM read error: offset %d beyond Shadow RAM limit %d\n",
+ offset, hw->nvm.sr_size);
ret_code = I40E_ERR_PARAM;
goto read_nvm_exit;
}
@@ -202,8 +205,9 @@ i40e_status i40e_read_nvm_word(struct i40e_hw *hw, u16 offset,
}
}
if (ret_code)
- hw_dbg(hw, "NVM read error: Couldn't access Shadow RAM address: 0x%x\n",
- offset);
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVM read error: Couldn't access Shadow RAM address: 0x%x\n",
+ offset);
read_nvm_exit:
return ret_code;
@@ -263,14 +267,20 @@ static i40e_status i40e_write_nvm_aq(struct i40e_hw *hw, u8 module_pointer,
* Firmware will check the module-based model.
*/
if ((offset + words) > hw->nvm.sr_size)
- hw_dbg(hw, "NVM write error: offset beyond Shadow RAM limit.\n");
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVM write error: offset %d beyond Shadow RAM limit %d\n",
+ (offset + words), hw->nvm.sr_size);
else if (words > I40E_SR_SECTOR_SIZE_IN_WORDS)
/* We can write only up to 4KB (one sector), in one AQ write */
- hw_dbg(hw, "NVM write fail error: cannot write more than 4KB in a single write.\n");
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVM write fail error: tried to write %d words, limit is %d.\n",
+ words, I40E_SR_SECTOR_SIZE_IN_WORDS);
else if (((offset + (words - 1)) / I40E_SR_SECTOR_SIZE_IN_WORDS)
!= (offset / I40E_SR_SECTOR_SIZE_IN_WORDS))
/* A single write cannot spread over two sectors */
- hw_dbg(hw, "NVM write error: cannot spread over two sectors in a single write.\n");
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVM write error: cannot spread over two sectors in a single write offset=%d words=%d\n",
+ offset, words);
else
ret_code = i40e_aq_update_nvm(hw, module_pointer,
2 * offset, /*bytes*/
@@ -438,6 +448,22 @@ static inline u8 i40e_nvmupd_get_transaction(u32 val)
return (u8)((val & I40E_NVM_TRANS_MASK) >> I40E_NVM_TRANS_SHIFT);
}
+static char *i40e_nvm_update_state_str[] = {
+ "I40E_NVMUPD_INVALID",
+ "I40E_NVMUPD_READ_CON",
+ "I40E_NVMUPD_READ_SNT",
+ "I40E_NVMUPD_READ_LCB",
+ "I40E_NVMUPD_READ_SA",
+ "I40E_NVMUPD_WRITE_ERA",
+ "I40E_NVMUPD_WRITE_CON",
+ "I40E_NVMUPD_WRITE_SNT",
+ "I40E_NVMUPD_WRITE_LCB",
+ "I40E_NVMUPD_WRITE_SA",
+ "I40E_NVMUPD_CSUM_CON",
+ "I40E_NVMUPD_CSUM_SA",
+ "I40E_NVMUPD_CSUM_LCB",
+};
+
/**
* i40e_nvmupd_command - Process an NVM update command
* @hw: pointer to hardware structure
@@ -471,6 +497,8 @@ i40e_status i40e_nvmupd_command(struct i40e_hw *hw,
default:
/* invalid state, should never happen */
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVMUPD: no such state %d\n", hw->nvmupd_state);
status = I40E_NOT_SUPPORTED;
*errno = -ESRCH;
break;
@@ -572,6 +600,9 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw,
break;
default:
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVMUPD: bad cmd %s in init state\n",
+ i40e_nvm_update_state_str[upd_cmd]);
status = I40E_ERR_NVM;
*errno = -ESRCH;
break;
@@ -611,6 +642,9 @@ static i40e_status i40e_nvmupd_state_reading(struct i40e_hw *hw,
break;
default:
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVMUPD: bad cmd %s in reading state.\n",
+ i40e_nvm_update_state_str[upd_cmd]);
status = I40E_NOT_SUPPORTED;
*errno = -ESRCH;
break;
@@ -671,6 +705,9 @@ static i40e_status i40e_nvmupd_state_writing(struct i40e_hw *hw,
break;
default:
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "NVMUPD: bad cmd %s in writing state.\n",
+ i40e_nvm_update_state_str[upd_cmd]);
status = I40E_NOT_SUPPORTED;
*errno = -ESRCH;
break;
@@ -702,8 +739,9 @@ static enum i40e_nvmupd_cmd i40e_nvmupd_validate_command(struct i40e_hw *hw,
/* limits on data size */
if ((cmd->data_size < 1) ||
(cmd->data_size > I40E_NVMUPD_MAX_DATA)) {
- hw_dbg(hw, "i40e_nvmupd_validate_command data_size %d\n",
- cmd->data_size);
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_validate_command data_size %d\n",
+ cmd->data_size);
*errno = -EFAULT;
return I40E_NVMUPD_INVALID;
}
@@ -755,12 +793,14 @@ static enum i40e_nvmupd_cmd i40e_nvmupd_validate_command(struct i40e_hw *hw,
}
break;
}
+ i40e_debug(hw, I40E_DEBUG_NVM, "%s\n",
+ i40e_nvm_update_state_str[upd_cmd]);
if (upd_cmd == I40E_NVMUPD_INVALID) {
*errno = -EFAULT;
- hw_dbg(hw,
- "i40e_nvmupd_validate_command returns %d errno: %d\n",
- upd_cmd, *errno);
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_validate_command returns %d errno %d\n",
+ upd_cmd, *errno);
}
return upd_cmd;
}
@@ -785,14 +825,18 @@ static i40e_status i40e_nvmupd_nvm_read(struct i40e_hw *hw,
transaction = i40e_nvmupd_get_transaction(cmd->config);
module = i40e_nvmupd_get_module(cmd->config);
last = (transaction == I40E_NVM_LCB) || (transaction == I40E_NVM_SA);
- hw_dbg(hw, "i40e_nvmupd_nvm_read mod 0x%x off 0x%x len 0x%x\n",
- module, cmd->offset, cmd->data_size);
status = i40e_aq_read_nvm(hw, module, cmd->offset, (u16)cmd->data_size,
bytes, last, NULL);
- hw_dbg(hw, "i40e_nvmupd_nvm_read status %d\n", status);
- if (status)
+ if (status) {
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_nvm_read mod 0x%x off 0x%x len 0x%x\n",
+ module, cmd->offset, cmd->data_size);
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_nvm_read status %d aq %d\n",
+ status, hw->aq.asq_last_status);
*errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+ }
return status;
}
@@ -816,13 +860,17 @@ static i40e_status i40e_nvmupd_nvm_erase(struct i40e_hw *hw,
transaction = i40e_nvmupd_get_transaction(cmd->config);
module = i40e_nvmupd_get_module(cmd->config);
last = (transaction & I40E_NVM_LCB);
- hw_dbg(hw, "i40e_nvmupd_nvm_erase mod 0x%x off 0x%x len 0x%x\n",
- module, cmd->offset, cmd->data_size);
status = i40e_aq_erase_nvm(hw, module, cmd->offset, (u16)cmd->data_size,
last, NULL);
- hw_dbg(hw, "i40e_nvmupd_nvm_erase status %d\n", status);
- if (status)
+ if (status) {
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_nvm_erase mod 0x%x off 0x%x len 0x%x\n",
+ module, cmd->offset, cmd->data_size);
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_nvm_erase status %d aq %d\n",
+ status, hw->aq.asq_last_status);
*errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+ }
return status;
}
@@ -847,13 +895,18 @@ static i40e_status i40e_nvmupd_nvm_write(struct i40e_hw *hw,
transaction = i40e_nvmupd_get_transaction(cmd->config);
module = i40e_nvmupd_get_module(cmd->config);
last = (transaction & I40E_NVM_LCB);
- hw_dbg(hw, "i40e_nvmupd_nvm_write mod 0x%x off 0x%x len 0x%x\n",
- module, cmd->offset, cmd->data_size);
+
status = i40e_aq_update_nvm(hw, module, cmd->offset,
(u16)cmd->data_size, bytes, last, NULL);
- hw_dbg(hw, "i40e_nvmupd_nvm_write status %d\n", status);
- if (status)
+ if (status) {
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_nvm_write mod 0x%x off 0x%x len 0x%x\n",
+ module, cmd->offset, cmd->data_size);
+ i40e_debug(hw, I40E_DEBUG_NVM,
+ "i40e_nvmupd_nvm_write status %d aq %d\n",
+ status, hw->aq.asq_last_status);
*errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+ }
return status;
}
--
1.9.3
^ permalink raw reply related
* [net-next v2 03/13] i40e: let firmware catch the NVM busy error
From: Jeff Kirsher @ 2014-12-09 21:26 UTC (permalink / raw)
To: davem; +Cc: Shannon Nelson, netdev, nhorman, sassmann, jogreene, Jeff Kirsher
In-Reply-To: <1418160380-29847-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Shannon Nelson <shannon.nelson@intel.com>
The NVM update operations take time finish asynchronously, and follow-on
update requests need to wait for the current one to finish. Early
firmware didn't handle this well, so the code had to track the busy state.
The released firmware handles the busy state correctly, returning
I40E_AQ_RC_EBUSY if an update is still in progress, so the code no longer
needs to track this.
Change-ID: I6e6b4adc26d6dcc5fd7adfee5763423858a7d921
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/i40e/i40e_adminq.c | 11 -----------
drivers/net/ethernet/intel/i40e/i40e_adminq.h | 1 -
drivers/net/ethernet/intel/i40evf/i40e_adminq.c | 6 ------
drivers/net/ethernet/intel/i40evf/i40e_adminq.h | 1 -
4 files changed, 19 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.c b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
index 35fa09a..ebff11b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
@@ -617,7 +617,6 @@ i40e_status i40e_init_adminq(struct i40e_hw *hw)
/* pre-emptive resource lock release */
i40e_aq_release_resource(hw, I40E_NVM_RESOURCE_ID, 0, NULL);
- hw->aq.nvm_busy = false;
ret_code = i40e_aq_set_hmc_resource_profile(hw,
I40E_HMC_PROFILE_DEFAULT,
@@ -754,12 +753,6 @@ i40e_status i40e_asq_send_command(struct i40e_hw *hw,
goto asq_send_command_exit;
}
- if (i40e_is_nvm_update_op(desc) && hw->aq.nvm_busy) {
- i40e_debug(hw, I40E_DEBUG_AQ_MESSAGE, "AQTX: NVM busy.\n");
- status = I40E_ERR_NVM;
- goto asq_send_command_exit;
- }
-
details = I40E_ADMINQ_DETAILS(hw->aq.asq, hw->aq.asq.next_to_use);
if (cmd_details) {
*details = *cmd_details;
@@ -901,9 +894,6 @@ i40e_status i40e_asq_send_command(struct i40e_hw *hw,
status = I40E_ERR_ADMIN_QUEUE_TIMEOUT;
}
- if (!status && i40e_is_nvm_update_op(desc))
- hw->aq.nvm_busy = true;
-
asq_send_command_error:
mutex_unlock(&hw->aq.asq_mutex);
asq_send_command_exit:
@@ -1016,7 +1006,6 @@ clean_arq_element_out:
mutex_unlock(&hw->aq.arq_mutex);
if (i40e_is_nvm_update_op(&e->desc)) {
- hw->aq.nvm_busy = false;
if (hw->aq.nvm_release_on_done) {
i40e_release_nvm(hw);
hw->aq.nvm_release_on_done = false;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.h b/drivers/net/ethernet/intel/i40e/i40e_adminq.h
index 003a227..618fe96 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.h
@@ -94,7 +94,6 @@ struct i40e_adminq_info {
u16 fw_min_ver; /* firmware minor version */
u16 api_maj_ver; /* api major version */
u16 api_min_ver; /* api minor version */
- bool nvm_busy;
bool nvm_release_on_done;
struct mutex asq_mutex; /* Send queue lock */
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_adminq.c b/drivers/net/ethernet/intel/i40evf/i40e_adminq.c
index 1698994..c1d25f8 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_adminq.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_adminq.c
@@ -836,9 +836,6 @@ i40e_status i40evf_asq_send_command(struct i40e_hw *hw,
hw->aq.asq_last_status = (enum i40e_admin_queue_err)retval;
}
- if (i40e_is_nvm_update_op(desc))
- hw->aq.nvm_busy = true;
-
i40e_debug(hw, I40E_DEBUG_AQ_MESSAGE,
"AQTX: desc and buffer writeback:\n");
i40evf_debug_aq(hw, I40E_DEBUG_AQ_COMMAND, (void *)desc, buff,
@@ -931,9 +928,6 @@ i40e_status i40evf_clean_arq_element(struct i40e_hw *hw,
memcpy(e->msg_buf, hw->aq.arq.r.arq_bi[desc_idx].va,
e->msg_len);
- if (i40e_is_nvm_update_op(&e->desc))
- hw->aq.nvm_busy = false;
-
i40e_debug(hw, I40E_DEBUG_AQ_MESSAGE, "AQRX: desc and buffer:\n");
i40evf_debug_aq(hw, I40E_DEBUG_AQ_COMMAND, (void *)desc, e->msg_buf,
hw->aq.arq_buf_size);
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_adminq.h b/drivers/net/ethernet/intel/i40evf/i40e_adminq.h
index 0d58378..d5d3c93 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_adminq.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_adminq.h
@@ -94,7 +94,6 @@ struct i40e_adminq_info {
u16 fw_min_ver; /* firmware minor version */
u16 api_maj_ver; /* api major version */
u16 api_min_ver; /* api minor version */
- bool nvm_busy;
bool nvm_release_on_done;
struct mutex asq_mutex; /* Send queue lock */
--
1.9.3
^ permalink raw reply related
* [net-next v2 02/13] i40e: better error messages for NVM update issues
From: Jeff Kirsher @ 2014-12-09 21:26 UTC (permalink / raw)
To: davem; +Cc: Shannon Nelson, netdev, nhorman, sassmann, jogreene, Jeff Kirsher
In-Reply-To: <1418160380-29847-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Shannon Nelson <shannon.nelson@intel.com>
Add more detail to the NVM update error messages so folks
have a better chance at diagnosing issues without having to
resort to heroic measures to reproduce an issue.
Change-ID: I270d1a9c903baceaef0bebcc55d29108ac08b0bd
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 52 ++++++++++++++++----------
1 file changed, 33 insertions(+), 19 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 25242f5..951e876 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -822,7 +822,7 @@ static int i40e_get_eeprom(struct net_device *netdev,
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_hw *hw = &np->vsi->back->hw;
struct i40e_pf *pf = np->vsi->back;
- int ret_val = 0, len;
+ int ret_val = 0, len, offset;
u8 *eeprom_buff;
u16 i, sectors;
bool last;
@@ -835,19 +835,21 @@ static int i40e_get_eeprom(struct net_device *netdev,
/* check for NVMUpdate access method */
magic = hw->vendor_id | (hw->device_id << 16);
if (eeprom->magic && eeprom->magic != magic) {
+ struct i40e_nvm_access *cmd;
int errno;
/* make sure it is the right magic for NVMUpdate */
if ((eeprom->magic >> 16) != hw->device_id)
return -EINVAL;
- ret_val = i40e_nvmupd_command(hw,
- (struct i40e_nvm_access *)eeprom,
- bytes, &errno);
+ cmd = (struct i40e_nvm_access *)eeprom;
+ ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
if (ret_val)
dev_info(&pf->pdev->dev,
- "NVMUpdate read failed err=%d status=0x%x\n",
- ret_val, hw->aq.asq_last_status);
+ "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
+ ret_val, hw->aq.asq_last_status, errno,
+ (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
+ cmd->offset, cmd->data_size);
return errno;
}
@@ -876,20 +878,29 @@ static int i40e_get_eeprom(struct net_device *netdev,
len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
last = true;
}
- ret_val = i40e_aq_read_nvm(hw, 0x0,
- eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
- len,
+ offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
+ ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
(u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
last, NULL);
- if (ret_val) {
+ if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
dev_info(&pf->pdev->dev,
- "read NVM failed err=%d status=0x%x\n",
- ret_val, hw->aq.asq_last_status);
- goto release_nvm;
+ "read NVM failed, invalid offset 0x%x\n",
+ offset);
+ break;
+ } else if (ret_val &&
+ hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
+ dev_info(&pf->pdev->dev,
+ "read NVM failed, access, offset 0x%x\n",
+ offset);
+ break;
+ } else if (ret_val) {
+ dev_info(&pf->pdev->dev,
+ "read NVM failed offset %d err=%d status=0x%x\n",
+ offset, ret_val, hw->aq.asq_last_status);
+ break;
}
}
-release_nvm:
i40e_release_nvm(hw);
memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
free_buff:
@@ -917,6 +928,7 @@ static int i40e_set_eeprom(struct net_device *netdev,
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_hw *hw = &np->vsi->back->hw;
struct i40e_pf *pf = np->vsi->back;
+ struct i40e_nvm_access *cmd;
int ret_val = 0;
int errno;
u32 magic;
@@ -934,12 +946,14 @@ static int i40e_set_eeprom(struct net_device *netdev,
test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
return -EBUSY;
- ret_val = i40e_nvmupd_command(hw, (struct i40e_nvm_access *)eeprom,
- bytes, &errno);
- if (ret_val)
+ cmd = (struct i40e_nvm_access *)eeprom;
+ ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
+ if (ret_val && hw->aq.asq_last_status != I40E_AQ_RC_EBUSY)
dev_info(&pf->pdev->dev,
- "NVMUpdate write failed err=%d status=0x%x\n",
- ret_val, hw->aq.asq_last_status);
+ "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
+ ret_val, hw->aq.asq_last_status, errno,
+ (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
+ cmd->offset, cmd->data_size);
return errno;
}
--
1.9.3
^ permalink raw reply related
* [net-next v2 01/13] i40e: clear NVM update state on ethtool test
From: Jeff Kirsher @ 2014-12-09 21:26 UTC (permalink / raw)
To: davem; +Cc: Shannon Nelson, netdev, nhorman, sassmann, jogreene, Jeff Kirsher
In-Reply-To: <1418160380-29847-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Shannon Nelson <shannon.nelson@intel.com>
Once in a great while the NVMUpdate tools and the driver get out
of phase with each other. This gives us a way to reset things
without having to unload the driver.
Change-ID: I353f688236249a666a90ba3e7233e0ed8c1a04e9
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index fcd815d..25242f5 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -1393,6 +1393,9 @@ static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
netif_info(pf, hw, netdev, "eeprom test\n");
*data = i40e_diag_eeprom_test(&pf->hw);
+ /* forcebly clear the NVM Update state machine */
+ pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
+
return *data;
}
--
1.9.3
^ permalink raw reply related
* [net-next v2 00/13][pull request] Intel Wired LAN Driver Updates 2014-12-09
From: Jeff Kirsher @ 2014-12-09 21:26 UTC (permalink / raw)
To: davem; +Cc: Jeff Kirsher, netdev, nhorman, sassmann, jogreene
This series contains updates to i40e and i40evf.
Jeff (me) provides a single patch to convert a macro to a static inline
function based on feedback from Joe Perches on a previous patch.
Shannon provides the remaining twelve patches against i40e. Almost all
of Shannon's patches cleanup/fix NVM issues varying in range from
adding more detail to debug messages, to removing dead code, to fixing
NVM state transitions after an error. Change the handy decoder interface
for admin queue return code to help catch and properly report the condition
as a useful errno rather than returning a misleading '0'. Added a range
check to avoid any possible array index-out-of-bound issues.
v2:
- fixed up patch 05 in the series to use the ARRAY_SIZE() macro as suggested
by Sergei Shtylyov
- fix up patch 13 to remove unnecessary parens in the return statement
as suggested by Sergei Shtylyov
The following are changes since commit b2abeeddad3844072d63f27602b581d9c4adc134:
net: ethernet: rocker: Add dependency to CONFIG_BRIDGE in Kconfig
and are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next master
Jeff Kirsher (1):
i40e/i40evf: Convert macro to static inline
Shannon Nelson (12):
i40e: clear NVM update state on ethtool test
i40e: better error messages for NVM update issues
i40e: let firmware catch the NVM busy error
i40e: rework debug messages for NVM update
i40e: add range check to i40e_aq_rc_to_posix
i40e: init NVM update state on adminq init
i40e: remove unused nvm_semaphore_wait
i40e: set max limit for access polling
i40e: fix up NVM update sm error handling
i40e: poll on NVM semaphore only if not other error
i40e: check for AQ timeout in aq_rc decode
i40e: add to NVM update debug message
drivers/net/ethernet/intel/i40e/i40e_adminq.c | 13 +-
drivers/net/ethernet/intel/i40e/i40e_adminq.h | 10 +-
drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 55 ++++---
drivers/net/ethernet/intel/i40e/i40e_nvm.c | 198 ++++++++++++++++--------
drivers/net/ethernet/intel/i40e/i40e_type.h | 8 +-
drivers/net/ethernet/intel/i40evf/i40e_adminq.c | 6 -
drivers/net/ethernet/intel/i40evf/i40e_adminq.h | 10 +-
drivers/net/ethernet/intel/i40evf/i40e_type.h | 8 +-
8 files changed, 197 insertions(+), 111 deletions(-)
--
1.9.3
^ permalink raw reply
* Re: Possible regression: "gre: Use inner mac length when computing tunnel length"
From: Tom Herbert @ 2014-12-09 21:23 UTC (permalink / raw)
To: Timo Teras; +Cc: Alexander Duyck, Linux Netdev List
In-Reply-To: <20141209084425.7499dbd4@vostro>
On Mon, Dec 8, 2014 at 10:44 PM, Timo Teras <timo.teras@iki.fi> wrote:
> On Tue, 9 Dec 2014 08:26:45 +0200
> Timo Teras <timo.teras@iki.fi> wrote:
>
>> On Thu, 4 Dec 2014 08:00:19 -0800
>> Tom Herbert <therbert@google.com> wrote:
>>
>> > A fix is pending for net. Please try if you can.
>>
>> Finally got to testing this. Unfortunately, this does not seem to fix
>> the issue I am experiencing.
>>
>> Any suggestions?
>
> I think this fix is required, but does not fix the issue.
>
> I suspect my problem is with the fact that I have NBMA GRE tunnel.
>
> In ipgre_xmit() it is gre_handle_offloads() that is called first.
> However, in my case, the GRE header was already pushed earlier via
> header_ops. That's why the packet is skb_pull()'ed in the
> "if (dev->header_ops)" path, so that __gre_xmit can push back the
> header again on it.
>
> I wonder if it is correct to just move the gre_handle_offloads() call
> after the if() block, or if additional fixing is needed to make
> offloads work with nbma tunnels.
>
Yes, that probably is a good idea. iptunnel_handle_offloads resets
inner headers so that inner_mac header is probably wrong when there
are dev->header_ops.
Tom
> /Timo
^ permalink raw reply
* Re: the next chunk of iov_iter-net stuff for review
From: Al Viro @ 2014-12-09 21:23 UTC (permalink / raw)
To: David Miller; +Cc: netdev, linux-kernel
In-Reply-To: <20141209.161712.1258837733606317716.davem@davemloft.net>
On Tue, Dec 09, 2014 at 04:17:12PM -0500, David Miller wrote:
> From: Al Viro <viro@ZenIV.linux.org.uk>
> Date: Tue, 9 Dec 2014 21:04:14 +0000
>
> > Well, I've got no comments whatsoever on the networking side of things;
>
> I've been away for more than 10 days, so I personally haven't had time
> to review any of it.
>
> Why don't you respin and I'll try to allocate some review time myself?
Umm... Do you want a rebase on top of current net-next/master?
^ permalink raw reply
* [patch net-next v2] net: sched: cls: use nla_nest_cancel instead of nlmsg_trim
From: Jiri Pirko @ 2014-12-09 21:23 UTC (permalink / raw)
To: netdev; +Cc: davem, jhs
In-Reply-To: <20141209.154849.439054105924395285.davem@davemloft.net>
To cancel nesting, this function is more convenient.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
---
v1->v2:
- removed remaining use of b in tcindex pointed out by DaveM
---
net/sched/cls_cgroup.c | 3 +--
net/sched/cls_flow.c | 2 +-
net/sched/cls_fw.c | 3 +--
net/sched/cls_route.c | 3 +--
net/sched/cls_rsvp.h | 3 +--
net/sched/cls_tcindex.c | 7 +++----
6 files changed, 8 insertions(+), 13 deletions(-)
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c
index 741bfa7..221697a 100644
--- a/net/sched/cls_cgroup.c
+++ b/net/sched/cls_cgroup.c
@@ -177,7 +177,6 @@ static int cls_cgroup_dump(struct net *net, struct tcf_proto *tp, unsigned long
struct sk_buff *skb, struct tcmsg *t)
{
struct cls_cgroup_head *head = rtnl_dereference(tp->root);
- unsigned char *b = skb_tail_pointer(skb);
struct nlattr *nest;
t->tcm_handle = head->handle;
@@ -198,7 +197,7 @@ static int cls_cgroup_dump(struct net *net, struct tcf_proto *tp, unsigned long
return skb->len;
nla_put_failure:
- nlmsg_trim(skb, b);
+ nla_nest_cancel(skb, nest);
return -1;
}
diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c
index 8e22718..15d68f2 100644
--- a/net/sched/cls_flow.c
+++ b/net/sched/cls_flow.c
@@ -638,7 +638,7 @@ static int flow_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
return skb->len;
nla_put_failure:
- nlmsg_trim(skb, nest);
+ nla_nest_cancel(skb, nest);
return -1;
}
diff --git a/net/sched/cls_fw.c b/net/sched/cls_fw.c
index 23fda2a..a5269f7 100644
--- a/net/sched/cls_fw.c
+++ b/net/sched/cls_fw.c
@@ -356,7 +356,6 @@ static int fw_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
{
struct fw_head *head = rtnl_dereference(tp->root);
struct fw_filter *f = (struct fw_filter *)fh;
- unsigned char *b = skb_tail_pointer(skb);
struct nlattr *nest;
if (f == NULL)
@@ -397,7 +396,7 @@ static int fw_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
return skb->len;
nla_put_failure:
- nlmsg_trim(skb, b);
+ nla_nest_cancel(skb, nest);
return -1;
}
diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c
index 098a273..2ecd246 100644
--- a/net/sched/cls_route.c
+++ b/net/sched/cls_route.c
@@ -593,7 +593,6 @@ static int route4_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
struct sk_buff *skb, struct tcmsg *t)
{
struct route4_filter *f = (struct route4_filter *)fh;
- unsigned char *b = skb_tail_pointer(skb);
struct nlattr *nest;
u32 id;
@@ -635,7 +634,7 @@ static int route4_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
return skb->len;
nla_put_failure:
- nlmsg_trim(skb, b);
+ nla_nest_cancel(skb, nest);
return -1;
}
diff --git a/net/sched/cls_rsvp.h b/net/sched/cls_rsvp.h
index b7af362..edd8ade 100644
--- a/net/sched/cls_rsvp.h
+++ b/net/sched/cls_rsvp.h
@@ -653,7 +653,6 @@ static int rsvp_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
{
struct rsvp_filter *f = (struct rsvp_filter *)fh;
struct rsvp_session *s;
- unsigned char *b = skb_tail_pointer(skb);
struct nlattr *nest;
struct tc_rsvp_pinfo pinfo;
@@ -694,7 +693,7 @@ static int rsvp_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
return skb->len;
nla_put_failure:
- nlmsg_trim(skb, b);
+ nla_nest_cancel(skb, nest);
return -1;
}
diff --git a/net/sched/cls_tcindex.c b/net/sched/cls_tcindex.c
index 0d9d891..bd49bf5 100644
--- a/net/sched/cls_tcindex.c
+++ b/net/sched/cls_tcindex.c
@@ -489,11 +489,10 @@ static int tcindex_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
{
struct tcindex_data *p = rtnl_dereference(tp->root);
struct tcindex_filter_result *r = (struct tcindex_filter_result *) fh;
- unsigned char *b = skb_tail_pointer(skb);
struct nlattr *nest;
- pr_debug("tcindex_dump(tp %p,fh 0x%lx,skb %p,t %p),p %p,r %p,b %p\n",
- tp, fh, skb, t, p, r, b);
+ pr_debug("tcindex_dump(tp %p,fh 0x%lx,skb %p,t %p),p %p,r %p\n",
+ tp, fh, skb, t, p, r);
pr_debug("p->perfect %p p->h %p\n", p->perfect, p->h);
nest = nla_nest_start(skb, TCA_OPTIONS);
@@ -543,7 +542,7 @@ static int tcindex_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
return skb->len;
nla_put_failure:
- nlmsg_trim(skb, b);
+ nla_nest_cancel(skb, nest);
return -1;
}
--
1.9.3
^ permalink raw reply related
* Re: [PATCH net-next 2/2] tcp_cubic: refine Hystart delay threshold
From: Dave Taht @ 2014-12-09 21:22 UTC (permalink / raw)
To: David Miller
Cc: Eric Dumazet, netdev@vger.kernel.org, Nandita Dukkipati,
Neal Cardwell, Yuchung Cheng, sangtae.ha
In-Reply-To: <20141209.145856.1280304544503810169.davem@davemloft.net>
On Tue, Dec 9, 2014 at 11:58 AM, David Miller <davem@davemloft.net> wrote:
> From: Eric Dumazet <eric.dumazet@gmail.com>
> Date: Thu, 04 Dec 2014 16:13:49 -0800
>
>> From: Eric Dumazet <edumazet@google.com>
>>
>> In commit 2b4636a5f8ca ("tcp_cubic: make the delay threshold of HyStart
>> less sensitive"), HYSTART_DELAY_MIN was changed to 4 ms.
>>
>> The remaining problem is that using delay_min + (delay_min/16) as the
>> threshold is too sensitive.
>>
>> 6.25 % of variation is too small for rtt above 60 ms, which are not
>> uncommon.
> ...
>> Signed-off-by: Eric Dumazet <edumazet@google.com>
>
> Applied.
Thank you (in a weird way!) for invalidating several weeks worth of
long rtt tests of some aqm and fq variants.
http://snapon.lab.bufferbloat.net/~d/comprehensive.puck/long_rtt_baseline.png
/me goes off to pull and recompile, and try again.
--
Dave Täht
http://www.bufferbloat.net/projects/bloat/wiki/Upcoming_Talks
^ permalink raw reply
* Re: [PATCH net-next v2 0/4] net: allow setting congctl via routing table
From: Daniel Borkmann @ 2014-12-09 21:22 UTC (permalink / raw)
To: David Miller; +Cc: hannes, fw, netdev
In-Reply-To: <20141209.155844.1175199719902606020.davem@davemloft.net>
On 12/09/2014 09:58 PM, David Miller wrote:
> From: Daniel Borkmann <dborkman@redhat.com>
> Date: Sun, 7 Dec 2014 00:39:19 +0100
>
>> This is the second part of our work and allows for setting the congestion
>> control algorithm via routing table. For details, please see individual
>> patches.
>>
>> Joint work with Florian Westphal, suggested by Hannes Frederic Sowa.
>>
>> Patch for iproute2: http://patchwork.ozlabs.org/patch/418149/
>>
>> Thanks!
>>
>> v1->v2:
>> - Very sorry, I noticed I had decnet disabled during testing.
>> Added missing header include in decnet, rest as is.
>
> I don't like how you have to explicitly load the congestion control
> module before asking for it to be used in the route entry metric.
>
> It should request the module automatically just like the stack already
> does for other cases.
Ok, sure, adding auto-loading should not be a problem. Will respin
with that tomorrow.
Thanks.
^ permalink raw reply
* Re: [RFC PATCH net-next 04/11] atl1c: remove disable_irq from netpoll controller, use netpoll_irq_lock
From: Chris Snook @ 2014-12-09 21:17 UTC (permalink / raw)
To: Sabrina Dubroca; +Cc: David S. Miller, netdev@vger.kernel.org, Jay Cliburn
In-Reply-To: <20141209172310.GA14343@kria>
Thanks for clarifying. I'll see if I can find someone with an atl1c
device to test this.
-- Chris
On Tue, Dec 9, 2014 at 9:23 AM, Sabrina Dubroca <sd@queasysnail.net> wrote:
> 2014-12-09, 16:13:33 +0000, Chris Snook wrote:
>> Could you explain the bug a little more for us? It's not obvious to me how
>> sleeping there is a problem.
>>
>> -- Chris
>
> Sorry for the lack of context.
>
> A might_sleep() check in disable_irq() was added in commit
> e22b886a8a43b ("sched/wait: Add might_sleep() checks") [1], and it
> triggers when using netconsole:
>
> BUG: sleeping function called from invalid context at kernel/irq/manage.c:104
> in_atomic(): 1, irqs_disabled(): 1, pid: 1, name: systemd
> no locks held by systemd/1.
> irq event stamp: 10102965
> hardirqs last enabled at (10102965): [<ffffffff810cbafd>] vprintk_emit+0x2dd/0x6a0
> hardirqs last disabled at (10102964): [<ffffffff810cb897>] vprintk_emit+0x77/0x6a0
> softirqs last enabled at (10102342): [<ffffffff810666aa>] __do_softirq+0x27a/0x6f0
> softirqs last disabled at (10102337): [<ffffffff81066e86>] irq_exit+0x56/0xe0
> Preemption disabled at:[<ffffffff817de50d>] printk_emit+0x31/0x33
>
> CPU: 1 PID: 1 Comm: systemd Not tainted 3.18.0-rc2-next-20141029-dirty #222
> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140617_173321-var-lib-archbuild-testing-x86_64-tobias 04/01/2014
> ffffffff81a82291 ffff88001e743978 ffffffff817df31d 0000000000000000
> 0000000000000000 ffff88001e7439a8 ffffffff8108dfa2 ffff88001e7439a8
> ffffffff81a82291 0000000000000068 0000000000000000 ffff88001e7439d8
> Call Trace:
> [<ffffffff817df31d>] dump_stack+0x4f/0x7c
> [<ffffffff8108dfa2>] ___might_sleep+0x182/0x2b0
> [<ffffffff8108e10a>] __might_sleep+0x3a/0xc0
> [<ffffffff810ce358>] synchronize_irq+0x38/0xa0
> [<ffffffff810ce633>] ? __disable_irq_nosync+0x43/0x70
> [<ffffffff810ce690>] disable_irq+0x20/0x30
> [<ffffffff815d7253>] e1000_netpoll+0x23/0x60
> [<ffffffff81678d02>] netpoll_poll_dev+0x72/0x3a0
> [<ffffffff817e9993>] ? _raw_spin_trylock+0x73/0x90
> [<ffffffff8167920f>] ? netpoll_send_skb_on_dev+0x1df/0x2e0
> [<ffffffff816791e7>] netpoll_send_skb_on_dev+0x1b7/0x2e0
> [<ffffffff816795f3>] netpoll_send_udp+0x2e3/0x490
>
>
> The initial discussion of this problem is here: https://lkml.org/lkml/2014/10/29/523
>
>
> [1] https://lkml.org/lkml/2014/10/28/427
>
>
>> On Tue, Dec 9, 2014, 06:39 Sabrina Dubroca <sd@queasysnail.net> wrote:
>>
>> > disable_irq() may sleep, replace it with a spin_lock in the interrupt
>> > handler.
>> >
>> > No actual testing done, only compiled.
>> >
>> > Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
>> > Cc: Jay Cliburn <jcliburn@gmail.com>
>> > Cc: Chris Snook <chris.snook@gmail.com>
>> > ---
>> > drivers/net/ethernet/atheros/atl1c/atl1c.h | 3 +++
>> > drivers/net/ethernet/atheros/atl1c/atl1c_main.c | 12 ++++++++----
>> > 2 files changed, 11 insertions(+), 4 deletions(-)
>> >
>> > diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c.h
>> > b/drivers/net/ethernet/atheros/atl1c/atl1c.h
>> > index b9203d928938..8d97791e1516 100644
>> > --- a/drivers/net/ethernet/atheros/atl1c/atl1c.h
>> > +++ b/drivers/net/ethernet/atheros/atl1c/atl1c.h
>> > @@ -49,6 +49,7 @@
>> > #include <linux/workqueue.h>
>> > #include <net/checksum.h>
>> > #include <net/ip6_checksum.h>
>> > +#include <linux/netpoll.h>
>> >
>> > #include "atl1c_hw.h"
>> >
>> > @@ -555,6 +556,8 @@ struct atl1c_adapter {
>> > struct atl1c_rfd_ring rfd_ring;
>> > struct atl1c_rrd_ring rrd_ring;
>> > u32 bd_number; /* board number;*/
>> > +
>> > + struct netpoll_irq_lock netpoll_lock;
>> > };
>> >
>> > #define AT_WRITE_REG(a, reg, value) ( \
>> > diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
>> > b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
>> > index 72fb86b9aa24..7a1b11eb8e4e 100644
>> > --- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
>> > +++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
>> > @@ -826,6 +826,7 @@ static int atl1c_sw_init(struct atl1c_adapter *adapter)
>> > atomic_set(&adapter->irq_sem, 1);
>> > spin_lock_init(&adapter->mdio_lock);
>> > spin_lock_init(&adapter->tx_lock);
>> > + netpoll_irq_lock_init(&adapter->netpoll_lock);
>> > set_bit(__AT_DOWN, &adapter->flags);
>> >
>> > return 0;
>> > @@ -1584,10 +1585,11 @@ static irqreturn_t atl1c_intr(int irq, void *data)
>> > struct pci_dev *pdev = adapter->pdev;
>> > struct atl1c_hw *hw = &adapter->hw;
>> > int max_ints = AT_MAX_INT_WORK;
>> > - int handled = IRQ_NONE;
>> > + irqreturn_t handled = IRQ_NONE;
>> > u32 status;
>> > u32 reg_data;
>> >
>> > + netpoll_irq_lock(&adapter->netpoll_lock);
>> > do {
>> > AT_READ_REG(hw, REG_ISR, ®_data);
>> > status = reg_data & hw->intr_mask;
>> > @@ -1622,7 +1624,8 @@ static irqreturn_t atl1c_intr(int irq, void *data)
>> > /* reset MAC */
>> > set_bit(ATL1C_WORK_EVENT_RESET,
>> > &adapter->work_event);
>> > schedule_work(&adapter->common_task);
>> > - return IRQ_HANDLED;
>> > + handled = IRQ_HANDLED;
>> > + goto out;
>> > }
>> >
>> > if (status & ISR_OVER)
>> > @@ -1641,6 +1644,9 @@ static irqreturn_t atl1c_intr(int irq, void *data)
>> > } while (--max_ints > 0);
>> > /* re-enable Interrupt*/
>> > AT_WRITE_REG(&adapter->hw, REG_ISR, 0);
>> > +
>> > +out:
>> > + netpoll_irq_unlock(&adapter->netpoll_lock);
>> > return handled;
>> > }
>> >
>> > @@ -1900,9 +1906,7 @@ static void atl1c_netpoll(struct net_device *netdev)
>> > {
>> > struct atl1c_adapter *adapter = netdev_priv(netdev);
>> >
>> > - disable_irq(adapter->pdev->irq);
>> > atl1c_intr(adapter->pdev->irq, netdev);
>> > - enable_irq(adapter->pdev->irq);
>> > }
>> > #endif
>> >
>> > --
>> > 2.1.3
>> >
>> >
>
> --
> Sabrina
^ permalink raw reply
* Re: [PATCH net-next] enic: add support for set/get rss hash key
From: David Miller @ 2014-12-09 21:17 UTC (permalink / raw)
To: _govind; +Cc: netdev, ssujith, benve
In-Reply-To: <20141209.161218.1737626879465253606.davem@davemloft.net>
From: David Miller <davem@davemloft.net>
Date: Tue, 09 Dec 2014 16:12:18 -0500 (EST)
> From: Govindarajulu Varadarajan <_govind@gmx.com>
> Date: Sun, 7 Dec 2014 22:41:13 +0530
>
>> This patch adds support for setting/getting rss hash key using ethtool.
>>
>> Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
>
> Applied, thanks.
Hmmm...
drivers/net/ethernet/cisco/enic/enic_ethtool.c:461:2: warning: initialization from incompatible pointer type [enabled by default]
drivers/net/ethernet/cisco/enic/enic_ethtool.c:461:2: warning: (near initialization for ‘enic_ethtool_ops.get_rxfh’) [enabled by default]
drivers/net/ethernet/cisco/enic/enic_ethtool.c:462:2: warning: initialization from incompatible pointer type [enabled by default]
drivers/net/ethernet/cisco/enic/enic_ethtool.c:462:2: warning: (near initialization for ‘enic_ethtool_ops.set_rxfh’) [enabled by default]
The function signature has changed for this method, you need to update this
patch and resubmit.
I've reverted it for now.
^ permalink raw reply
* Re: the next chunk of iov_iter-net stuff for review
From: David Miller @ 2014-12-09 21:17 UTC (permalink / raw)
To: viro; +Cc: netdev, linux-kernel
In-Reply-To: <20141209210414.GJ22149@ZenIV.linux.org.uk>
From: Al Viro <viro@ZenIV.linux.org.uk>
Date: Tue, 9 Dec 2014 21:04:14 +0000
> Well, I've got no comments whatsoever on the networking side of things;
I've been away for more than 10 days, so I personally haven't had time
to review any of it.
Why don't you respin and I'll try to allocate some review time myself?
Thanks.
^ permalink raw reply
* [PATCH] fix suspicious rcu_dereference_check in net/sched/sch_fq_codel.c
From: Valdis Kletnieks @ 2014-12-09 21:15 UTC (permalink / raw)
To: Eric Dumazet, John Fastabend, David S. Miller; +Cc: linux-kernel, netdev
commit 46e5da40ae (net: qdisc: use rcu prefix and silence
sparse warnings) triggers a spurious warning:
net/sched/sch_fq_codel.c:97 suspicious rcu_dereference_check() usage!
The code should be using the _bh variant of rcu_dereference.
Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
---
net/sched/sch_fq_codel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c
index b9ca32ebc1de..1e52decb7b59 100644
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
@@ -94,7 +94,7 @@ static unsigned int fq_codel_classify(struct sk_buff *skb, struct Qdisc *sch,
TC_H_MIN(skb->priority) <= q->flows_cnt)
return TC_H_MIN(skb->priority);
- filter = rcu_dereference(q->filter_list);
+ filter = rcu_dereference_bh(q->filter_list);
if (!filter)
return fq_codel_hash(q, skb) + 1;
--
2.2.0
^ permalink raw reply related
* Re: [PATCH 5/20] isdn: fix misspelling of current function in string
From: David Miller @ 2014-12-09 21:14 UTC (permalink / raw)
To: Julia.Lawall; +Cc: isdn, kernel-janitors, linux, joe, netdev, linux-kernel
In-Reply-To: <1417980062-25151-6-git-send-email-Julia.Lawall@lip6.fr>
From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Sun, 7 Dec 2014 20:20:47 +0100
> Replace a misspelled function name by %s and then __func__.
>
> In the first case, the print is just dropped, because kmalloc itself does
> enough error reporting.
>
> This was done using Coccinelle, including the use of Levenshtein distance,
> as proposed by Rasmus Villemoes.
>
> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Applied.
^ permalink raw reply
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