[v2] net/i40e: fix exception with multi-driver
Checks
Commit Message
From: Alvin Zhang <alvinx.zhang@intel.com>
If support-multi-driver is enabled, the global registers should not
be configured. But with the correct code base, if creating a flow
with rte_flow API, the global register GLQF_FD_MSK may be changed.
Fixes: cfdfca493cae ("net/i40e: fix multiple driver support")
Cc: stable@dpdk.org
Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
--
v2: modify codes according to the comments.
---
drivers/net/i40e/i40e_flow.c | 34 +++++++++++++++++++++++++++-------
1 file changed, 27 insertions(+), 7 deletions(-)
Comments
On 09/26, alvinx.zhang@intel.com wrote:
>From: Alvin Zhang <alvinx.zhang@intel.com>
>
>If support-multi-driver is enabled, the global registers should not
>be configured. But with the correct code base, if creating a flow
correct -> current
>with rte_flow API, the global register GLQF_FD_MSK may be changed.
>
>Fixes: cfdfca493cae ("net/i40e: fix multiple driver support")
>Cc: stable@dpdk.org
>
>Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
>--
>
>v2: modify codes according to the comments.
>---
> drivers/net/i40e/i40e_flow.c | 34 +++++++++++++++++++++++++++-------
> 1 file changed, 27 insertions(+), 7 deletions(-)
>
>diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c
>index e902a35..9dd7b13 100644
>--- a/drivers/net/i40e/i40e_flow.c
>+++ b/drivers/net/i40e/i40e_flow.c
>@@ -2349,6 +2349,33 @@ static int i40e_flow_destroy_tunnel_filter(struct i40e_pf *pf,
> if (num < 0)
> return -EINVAL;
>
>+ if (pf->support_multi_driver) {
>+ for (i = 0; i < num; i++)
>+ if (i40e_read_rx_ctl(hw,
>+ I40E_GLQF_FD_MSK(i, pctype)) !=
>+ mask_reg[i]) {
>+ PMD_DRV_LOG(ERR, "Input set setting is not"
>+ " supported.");
Could you mention multi-driver in the err log? otherwise this info is misleading.
>+ return -EPERM;
>+ }
>+ for (i = num; i < I40E_INSET_MASK_NUM_REG; i++)
>+ if (i40e_read_rx_ctl(hw,
>+ I40E_GLQF_FD_MSK(i, pctype)) != 0) {
>+ PMD_DRV_LOG(ERR, "Input set setting is not"
>+ " supported.");
Ditto.
Thanks,
Xiaolong
>+ return -EPERM;
>+ }
>+
>+ } else {
>+ for (i = 0; i < num; i++)
>+ i40e_check_write_reg(hw, I40E_GLQF_FD_MSK(i, pctype),
>+ mask_reg[i]);
>+ /*clear unused mask registers of the pctype */
>+ for (i = num; i < I40E_INSET_MASK_NUM_REG; i++)
>+ i40e_check_write_reg(hw,
>+ I40E_GLQF_FD_MSK(i, pctype), 0);
>+ }
>+
> inset_reg |= i40e_translate_input_set_reg(hw->mac.type, input_set);
>
> i40e_check_write_reg(hw, I40E_PRTQF_FD_INSET(pctype, 0),
>@@ -2357,13 +2384,6 @@ static int i40e_flow_destroy_tunnel_filter(struct i40e_pf *pf,
> (uint32_t)((inset_reg >>
> I40E_32_BIT_WIDTH) & UINT32_MAX));
>
>- for (i = 0; i < num; i++)
>- i40e_check_write_reg(hw, I40E_GLQF_FD_MSK(i, pctype),
>- mask_reg[i]);
>-
>- /*clear unused mask registers of the pctype */
>- for (i = num; i < I40E_INSET_MASK_NUM_REG; i++)
>- i40e_check_write_reg(hw, I40E_GLQF_FD_MSK(i, pctype), 0);
> I40E_WRITE_FLUSH(hw);
>
> pf->fdir.input_set[pctype] = input_set;
>--
>1.8.3.1
>
@@ -2349,6 +2349,33 @@ static int i40e_flow_destroy_tunnel_filter(struct i40e_pf *pf,
if (num < 0)
return -EINVAL;
+ if (pf->support_multi_driver) {
+ for (i = 0; i < num; i++)
+ if (i40e_read_rx_ctl(hw,
+ I40E_GLQF_FD_MSK(i, pctype)) !=
+ mask_reg[i]) {
+ PMD_DRV_LOG(ERR, "Input set setting is not"
+ " supported.");
+ return -EPERM;
+ }
+ for (i = num; i < I40E_INSET_MASK_NUM_REG; i++)
+ if (i40e_read_rx_ctl(hw,
+ I40E_GLQF_FD_MSK(i, pctype)) != 0) {
+ PMD_DRV_LOG(ERR, "Input set setting is not"
+ " supported.");
+ return -EPERM;
+ }
+
+ } else {
+ for (i = 0; i < num; i++)
+ i40e_check_write_reg(hw, I40E_GLQF_FD_MSK(i, pctype),
+ mask_reg[i]);
+ /*clear unused mask registers of the pctype */
+ for (i = num; i < I40E_INSET_MASK_NUM_REG; i++)
+ i40e_check_write_reg(hw,
+ I40E_GLQF_FD_MSK(i, pctype), 0);
+ }
+
inset_reg |= i40e_translate_input_set_reg(hw->mac.type, input_set);
i40e_check_write_reg(hw, I40E_PRTQF_FD_INSET(pctype, 0),
@@ -2357,13 +2384,6 @@ static int i40e_flow_destroy_tunnel_filter(struct i40e_pf *pf,
(uint32_t)((inset_reg >>
I40E_32_BIT_WIDTH) & UINT32_MAX));
- for (i = 0; i < num; i++)
- i40e_check_write_reg(hw, I40E_GLQF_FD_MSK(i, pctype),
- mask_reg[i]);
-
- /*clear unused mask registers of the pctype */
- for (i = num; i < I40E_INSET_MASK_NUM_REG; i++)
- i40e_check_write_reg(hw, I40E_GLQF_FD_MSK(i, pctype), 0);
I40E_WRITE_FLUSH(hw);
pf->fdir.input_set[pctype] = input_set;