diff options
| author | Anjali Singhai Jain <anjali.singhai@intel.com> | 2014-02-12 10:33:25 +0400 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2014-03-15 03:30:03 +0400 |
| commit | 55a5e60b9f583f64a6c95cfe869dd2d65ae53a95 (patch) | |
| tree | 769c369562564b3593c53c03b04de071cf9764d5 /drivers/net/ethernet/intel/i40e/i40e_debugfs.c | |
| parent | 61dade7e9201162cba683cff103cebbdf06655d4 (diff) | |
| download | linux-55a5e60b9f583f64a6c95cfe869dd2d65ae53a95.tar.xz | |
i40e: Add code to handle FD table full condition
Add code to enforce the following policy:
- If the HW reports filter programming error, we check if it's due to a
full table.
- If so, we go ahead and turn off new rule addition for ATR and then SB
in that order.
- We monitor the programmed filter count, if enough room is created due
to filter deletion/reset, we then re-enable SB and ATR new rule addition.
Change-ID: I69d24b29e5c45bc4fa861258e11c2fa7b8868748
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_debugfs.c')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c index 47b9754d1e8e..afd43d7973fa 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c +++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c @@ -1011,10 +1011,12 @@ static void i40e_dbg_dump_veb_all(struct i40e_pf *pf) **/ static void i40e_dbg_cmd_fd_ctrl(struct i40e_pf *pf, u64 flag, bool enable) { - if (enable) + if (enable) { pf->flags |= flag; - else + } else { pf->flags &= ~flag; + pf->auto_disable_flags |= flag; + } dev_info(&pf->pdev->dev, "requesting a pf reset\n"); i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED)); } @@ -1670,6 +1672,15 @@ static ssize_t i40e_dbg_command_write(struct file *filp, bool add = false; int ret; + if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) + goto command_write_done; + + if (strncmp(cmd_buf, "add", 3) == 0) + add = true; + + if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)) + goto command_write_done; + asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE, GFP_KERNEL); if (!asc_packet) @@ -1684,8 +1695,6 @@ static ssize_t i40e_dbg_command_write(struct file *filp, goto command_write_done; } - if (strncmp(cmd_buf, "add", 3) == 0) - add = true; cnt = sscanf(&cmd_buf[13], "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s", &fd_data.q_index, |