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i40e: refactor fdir setup function

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This function did a lot of unnecessary cpu_to_xxx(foo) and making it
worse, each of these calls caused a lot of line wrapping.

Fix look and feel via a refactor of this function.  No functional
changes.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jesse Brandeburg 2013-09-28 07:13:54 +00:00 committed by Jeff Kirsher
parent 0976a01610
commit eaefbd06ed
1 changed files with 33 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

78
drivers/net/ethernet/intel/i40e/i40e_txrx.c
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@ -37,6 +37,7 @@ static inline __le64 build_ctob(u32 td_cmd, u32 td_offset, unsigned int size,
((u64)td_tag << I40E_TXD_QW1_L2TAG1_SHIFT));
}
#define I40E_TXD_CMD (I40E_TX_DESC_CMD_EOP | I40E_TX_DESC_CMD_RS)
/**
* i40e_program_fdir_filter - Program a Flow Director filter
* @fdir_input: Packet data that will be filter parameters
@ -50,6 +51,7 @@ int i40e_program_fdir_filter(struct i40e_fdir_data *fdir_data,
struct i40e_tx_buffer *tx_buf;
struct i40e_tx_desc *tx_desc;
struct i40e_ring *tx_ring;
unsigned int fpt, dcc;
struct i40e_vsi *vsi;
struct device *dev;
dma_addr_t dma;
@ -68,7 +70,7 @@ int i40e_program_fdir_filter(struct i40e_fdir_data *fdir_data,
dev = tx_ring->dev;
dma = dma_map_single(dev, fdir_data->raw_packet,
I40E_FDIR_MAX_RAW_PACKET_LOOKUP, DMA_TO_DEVICE);
I40E_FDIR_MAX_RAW_PACKET_LOOKUP, DMA_TO_DEVICE);
if (dma_mapping_error(dev, dma))
goto dma_fail;
@ -77,74 +79,61 @@ int i40e_program_fdir_filter(struct i40e_fdir_data *fdir_data,
fdir_desc = I40E_TX_FDIRDESC(tx_ring, i);
tx_buf = &tx_ring->tx_bi[i];
i++;
tx_ring->next_to_use = (i < tx_ring->count) ? i : 0;
tx_ring->next_to_use = (i + 1 < tx_ring->count) ? i + 1 : 0;
fdir_desc->qindex_flex_ptype_vsi = cpu_to_le32((fdir_data->q_index
<< I40E_TXD_FLTR_QW0_QINDEX_SHIFT)
& I40E_TXD_FLTR_QW0_QINDEX_MASK);
fpt = (fdir_data->q_index << I40E_TXD_FLTR_QW0_QINDEX_SHIFT) &
I40E_TXD_FLTR_QW0_QINDEX_MASK;
fdir_desc->qindex_flex_ptype_vsi |= cpu_to_le32((fdir_data->flex_off
<< I40E_TXD_FLTR_QW0_FLEXOFF_SHIFT)
& I40E_TXD_FLTR_QW0_FLEXOFF_MASK);
fpt |= (fdir_data->flex_off << I40E_TXD_FLTR_QW0_FLEXOFF_SHIFT) &
I40E_TXD_FLTR_QW0_FLEXOFF_MASK;
fdir_desc->qindex_flex_ptype_vsi |= cpu_to_le32((fdir_data->pctype
<< I40E_TXD_FLTR_QW0_PCTYPE_SHIFT)
& I40E_TXD_FLTR_QW0_PCTYPE_MASK);
fpt |= (fdir_data->pctype << I40E_TXD_FLTR_QW0_PCTYPE_SHIFT) &
I40E_TXD_FLTR_QW0_PCTYPE_MASK;
/* Use LAN VSI Id if not programmed by user */
if (fdir_data->dest_vsi == 0)
fdir_desc->qindex_flex_ptype_vsi |=
cpu_to_le32((pf->vsi[pf->lan_vsi]->id)
<< I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT);
fpt |= (pf->vsi[pf->lan_vsi]->id) <<
I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT;
else
fdir_desc->qindex_flex_ptype_vsi |=
cpu_to_le32((((u32)fdir_data->dest_vsi) <<
I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT) &
I40E_TXD_FLTR_QW0_DEST_VSI_MASK);
fpt |= ((u32)fdir_data->dest_vsi <<
I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT) &
I40E_TXD_FLTR_QW0_DEST_VSI_MASK;
fdir_desc->dtype_cmd_cntindex =
cpu_to_le32(I40E_TX_DESC_DTYPE_FILTER_PROG);
fdir_desc->qindex_flex_ptype_vsi = cpu_to_le32(fpt);
dcc = I40E_TX_DESC_DTYPE_FILTER_PROG;
if (add)
fdir_desc->dtype_cmd_cntindex |= cpu_to_le32(
I40E_FILTER_PROGRAM_DESC_PCMD_ADD_UPDATE
<< I40E_TXD_FLTR_QW1_PCMD_SHIFT);
dcc |= I40E_FILTER_PROGRAM_DESC_PCMD_ADD_UPDATE <<
I40E_TXD_FLTR_QW1_PCMD_SHIFT;
else
fdir_desc->dtype_cmd_cntindex |= cpu_to_le32(
I40E_FILTER_PROGRAM_DESC_PCMD_REMOVE
<< I40E_TXD_FLTR_QW1_PCMD_SHIFT);
dcc |= I40E_FILTER_PROGRAM_DESC_PCMD_REMOVE <<
I40E_TXD_FLTR_QW1_PCMD_SHIFT;
fdir_desc->dtype_cmd_cntindex |= cpu_to_le32((fdir_data->dest_ctl
<< I40E_TXD_FLTR_QW1_DEST_SHIFT)
& I40E_TXD_FLTR_QW1_DEST_MASK);
dcc |= (fdir_data->dest_ctl << I40E_TXD_FLTR_QW1_DEST_SHIFT) &
I40E_TXD_FLTR_QW1_DEST_MASK;
fdir_desc->dtype_cmd_cntindex |= cpu_to_le32(
(fdir_data->fd_status << I40E_TXD_FLTR_QW1_FD_STATUS_SHIFT)
& I40E_TXD_FLTR_QW1_FD_STATUS_MASK);
dcc |= (fdir_data->fd_status << I40E_TXD_FLTR_QW1_FD_STATUS_SHIFT) &
I40E_TXD_FLTR_QW1_FD_STATUS_MASK;
if (fdir_data->cnt_index != 0) {
fdir_desc->dtype_cmd_cntindex |=
cpu_to_le32(I40E_TXD_FLTR_QW1_CNT_ENA_MASK);
fdir_desc->dtype_cmd_cntindex |=
cpu_to_le32((((u32)fdir_data->cnt_index) <<
I40E_TXD_FLTR_QW1_CNTINDEX_SHIFT) &
I40E_TXD_FLTR_QW1_CNTINDEX_MASK);
dcc |= I40E_TXD_FLTR_QW1_CNT_ENA_MASK;
dcc |= ((u32)fdir_data->cnt_index <<
I40E_TXD_FLTR_QW1_CNTINDEX_SHIFT) &
I40E_TXD_FLTR_QW1_CNTINDEX_MASK;
}
fdir_desc->dtype_cmd_cntindex = cpu_to_le32(dcc);
fdir_desc->fd_id = cpu_to_le32(fdir_data->fd_id);
/* Now program a dummy descriptor */
i = tx_ring->next_to_use;
tx_desc = I40E_TX_DESC(tx_ring, i);
i++;
tx_ring->next_to_use = (i < tx_ring->count) ? i : 0;
tx_ring->next_to_use = (i + 1 < tx_ring->count) ? i + 1 : 0;
tx_desc->buffer_addr = cpu_to_le64(dma);
td_cmd = I40E_TX_DESC_CMD_EOP |
I40E_TX_DESC_CMD_RS |
I40E_TX_DESC_CMD_DUMMY;
td_cmd = I40E_TXD_CMD | I40E_TX_DESC_CMD_DUMMY;
tx_desc->cmd_type_offset_bsz =
build_ctob(td_cmd, 0, I40E_FDIR_MAX_RAW_PACKET_LOOKUP, 0);
@ -1254,7 +1243,6 @@ static void i40e_atr(struct i40e_ring *tx_ring, struct sk_buff *skb,
fdir_desc->dtype_cmd_cntindex = cpu_to_le32(dtype_cmd);
}
#define I40E_TXD_CMD (I40E_TX_DESC_CMD_EOP | I40E_TX_DESC_CMD_RS)
/**
* i40e_tx_prepare_vlan_flags - prepare generic TX VLAN tagging flags for HW
* @skb: send buffer