[01/12] net/ice/base: calculate logical PF ID
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Commit Message
In some devices, the function numbers used are non-contiguous. For
example, some two port devices will report as functions 0 and 2.
When distributing RSS and FDIR masks, which are global resources across
the active devices, it is required to have a contiguous PF id, which can
be described as a logical PF id. In the case above, function 0 would
have a logical PF id of 0, and function 2 would have a logical PF id of
1.
Cc: stable@dpdk.org
Using logical PF id can properly describe which slice of resources can
be used by a particular PF.
Signed-off-by: Dan Nowlin <dan.nowlin@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
drivers/net/ice/base/ice_common.c | 19 +++++++++++++++++++
drivers/net/ice/base/ice_flex_pipe.c | 2 +-
drivers/net/ice/base/ice_type.h | 1 +
3 files changed, 21 insertions(+), 1 deletion(-)
@@ -2535,6 +2535,23 @@ ice_parse_func_caps(struct ice_hw *hw, struct ice_hw_func_caps *func_p,
ice_recalc_port_limited_caps(hw, &func_p->common_cap);
}
+/**
+ * ice_func_id_to_logical_id - map from function id to logical pf id
+ * @active_function_bitmap: active function bitmap
+ * @pf_id: function number of device
+ */
+static int ice_func_id_to_logical_id(u32 active_function_bitmap, u8 pf_id)
+{
+ u8 logical_id = 0;
+ u8 i;
+
+ for (i = 0; i < pf_id; i++)
+ if (active_function_bitmap & BIT(i))
+ logical_id++;
+
+ return logical_id;
+}
+
/**
* ice_parse_valid_functions_cap - Parse ICE_AQC_CAPS_VALID_FUNCTIONS caps
* @hw: pointer to the HW struct
@@ -2552,6 +2569,8 @@ ice_parse_valid_functions_cap(struct ice_hw *hw, struct ice_hw_dev_caps *dev_p,
dev_p->num_funcs = ice_hweight32(number);
ice_debug(hw, ICE_DBG_INIT, "dev caps: num_funcs = %d\n",
dev_p->num_funcs);
+
+ hw->logical_pf_id = ice_func_id_to_logical_id(number, hw->pf_id);
}
/**
@@ -3432,7 +3432,7 @@ static void ice_init_prof_masks(struct ice_hw *hw, enum ice_block blk)
per_pf = ICE_PROF_MASK_COUNT / hw->dev_caps.num_funcs;
hw->blk[blk].masks.count = per_pf;
- hw->blk[blk].masks.first = hw->pf_id * per_pf;
+ hw->blk[blk].masks.first = hw->logical_pf_id * per_pf;
ice_memset(hw->blk[blk].masks.masks, 0,
sizeof(hw->blk[blk].masks.masks), ICE_NONDMA_MEM);
@@ -1132,6 +1132,7 @@ struct ice_hw {
u8 revision_id;
u8 pf_id; /* device profile info */
+ u8 logical_pf_id;
u16 max_burst_size; /* driver sets this value */