net/ice/base: add VXLAN/generic tunnel management
Added routines for handling tunnel management: - ice_tunnel_port_in_use() - ice_tunnel_get_type() - ice_find_free_tunnel_entry() - ice_create_tunnel() - ice_destroy_tunnel() Signed-off-by: Dan Nowlin <dan.nowlin@intel.com> Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com> Signed-off-by: Leyi Rong <leyi.rong@intel.com> Acked-by: Qi Zhang <qi.z.zhang@intel.com>
This commit is contained in:
Leyi Rong
Ferruh Yigit
parent
b2de221a3b
commit
884efe3ca1
@ -1708,6 +1708,234 @@ static struct ice_buf *ice_pkg_buf(struct ice_buf_build *bld)
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return &bld->buf;
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}
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/**
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* ice_tunnel_port_in_use
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* @hw: pointer to the HW structure
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* @port: port to search for
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* @index: optionally returns index
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*
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* Returns whether a port is already in use as a tunnel, and optionally its
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* index
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*/
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bool ice_tunnel_port_in_use(struct ice_hw *hw, u16 port, u16 *index)
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{
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u16 i;
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for (i = 0; i < hw->tnl.count && i < ICE_TUNNEL_MAX_ENTRIES; i++)
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if (hw->tnl.tbl[i].in_use && hw->tnl.tbl[i].port == port) {
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if (index)
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*index = i;
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return true;
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}
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return false;
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}
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/**
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* ice_tunnel_get_type
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* @hw: pointer to the HW structure
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* @port: port to search for
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* @type: returns tunnel index
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*
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* For a given port number, will return the type of tunnel.
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*/
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bool
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ice_tunnel_get_type(struct ice_hw *hw, u16 port, enum ice_tunnel_type *type)
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{
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u16 i;
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for (i = 0; i < hw->tnl.count && i < ICE_TUNNEL_MAX_ENTRIES; i++)
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if (hw->tnl.tbl[i].in_use && hw->tnl.tbl[i].port == port) {
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*type = hw->tnl.tbl[i].type;
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return true;
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}
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return false;
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}
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/**
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* ice_find_free_tunnel_entry
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* @hw: pointer to the HW structure
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* @type: tunnel type
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* @index: optionally returns index
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*
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* Returns whether there is a free tunnel entry, and optionally its index
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*/
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static bool
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ice_find_free_tunnel_entry(struct ice_hw *hw, enum ice_tunnel_type type,
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u16 *index)
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{
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u16 i;
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for (i = 0; i < hw->tnl.count && i < ICE_TUNNEL_MAX_ENTRIES; i++)
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if (hw->tnl.tbl[i].valid && !hw->tnl.tbl[i].in_use &&
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hw->tnl.tbl[i].type == type) {
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if (index)
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*index = i;
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return true;
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}
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return false;
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}
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/**
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* ice_create_tunnel
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* @hw: pointer to the HW structure
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* @type: type of tunnel
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* @port: port to use for vxlan tunnel
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*
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* Creates a tunnel
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*/
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enum ice_status
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ice_create_tunnel(struct ice_hw *hw, enum ice_tunnel_type type, u16 port)
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{
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struct ice_boost_tcam_section *sect_rx, *sect_tx;
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enum ice_status status = ICE_ERR_MAX_LIMIT;
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struct ice_buf_build *bld;
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u16 index;
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if (ice_tunnel_port_in_use(hw, port, NULL))
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return ICE_ERR_ALREADY_EXISTS;
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if (!ice_find_free_tunnel_entry(hw, type, &index))
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return ICE_ERR_OUT_OF_RANGE;
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bld = ice_pkg_buf_alloc(hw);
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if (!bld)
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return ICE_ERR_NO_MEMORY;
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/* allocate 2 sections, one for RX parser, one for TX parser */
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if (ice_pkg_buf_reserve_section(bld, 2))
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goto ice_create_tunnel_err;
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sect_rx = (struct ice_boost_tcam_section *)
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ice_pkg_buf_alloc_section(bld, ICE_SID_RXPARSER_BOOST_TCAM,
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sizeof(*sect_rx));
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if (!sect_rx)
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goto ice_create_tunnel_err;
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sect_rx->count = CPU_TO_LE16(1);
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sect_tx = (struct ice_boost_tcam_section *)
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ice_pkg_buf_alloc_section(bld, ICE_SID_TXPARSER_BOOST_TCAM,
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sizeof(*sect_tx));
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if (!sect_tx)
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goto ice_create_tunnel_err;
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sect_tx->count = CPU_TO_LE16(1);
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/* copy original boost entry to update package buffer */
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ice_memcpy(sect_rx->tcam, hw->tnl.tbl[index].boost_entry,
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sizeof(*sect_rx->tcam), ICE_NONDMA_TO_NONDMA);
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/* over-write the never-match dest port key bits with the encoded port
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* bits
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*/
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ice_set_key((u8 *)§_rx->tcam[0].key, sizeof(sect_rx->tcam[0].key),
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(u8 *)&port, NULL, NULL, NULL,
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offsetof(struct ice_boost_key_value, hv_dst_port_key),
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sizeof(sect_rx->tcam[0].key.key.hv_dst_port_key));
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/* exact copy of entry to TX section entry */
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ice_memcpy(sect_tx->tcam, sect_rx->tcam, sizeof(*sect_tx->tcam),
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ICE_NONDMA_TO_NONDMA);
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status = ice_update_pkg(hw, ice_pkg_buf(bld), 1);
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if (!status) {
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hw->tnl.tbl[index].port = port;
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hw->tnl.tbl[index].in_use = true;
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}
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ice_create_tunnel_err:
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ice_pkg_buf_free(hw, bld);
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return status;
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}
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/**
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* ice_destroy_tunnel
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* @hw: pointer to the HW structure
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* @port: port of tunnel to destroy (ignored if the all parameter is true)
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* @all: flag that states to destroy all tunnels
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*
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* Destroys a tunnel or all tunnels by creating an update package buffer
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* targeting the specific updates requested and then performing an update
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* package.
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*/
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enum ice_status ice_destroy_tunnel(struct ice_hw *hw, u16 port, bool all)
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{
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struct ice_boost_tcam_section *sect_rx, *sect_tx;
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enum ice_status status = ICE_ERR_MAX_LIMIT;
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struct ice_buf_build *bld;
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u16 count = 0;
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u16 size;
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u16 i;
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/* determine count */
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for (i = 0; i < hw->tnl.count && i < ICE_TUNNEL_MAX_ENTRIES; i++)
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if (hw->tnl.tbl[i].valid && hw->tnl.tbl[i].in_use &&
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(all || hw->tnl.tbl[i].port == port))
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count++;
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if (!count)
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return ICE_ERR_PARAM;
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/* size of section - there is at least one entry */
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size = (count - 1) * sizeof(*sect_rx->tcam) + sizeof(*sect_rx);
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bld = ice_pkg_buf_alloc(hw);
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if (!bld)
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return ICE_ERR_NO_MEMORY;
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/* allocate 2 sections, one for RX parser, one for TX parser */
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if (ice_pkg_buf_reserve_section(bld, 2))
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goto ice_destroy_tunnel_err;
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sect_rx = (struct ice_boost_tcam_section *)
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ice_pkg_buf_alloc_section(bld, ICE_SID_RXPARSER_BOOST_TCAM,
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size);
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if (!sect_rx)
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goto ice_destroy_tunnel_err;
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sect_rx->count = CPU_TO_LE16(1);
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sect_tx = (struct ice_boost_tcam_section *)
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ice_pkg_buf_alloc_section(bld, ICE_SID_TXPARSER_BOOST_TCAM,
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size);
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if (!sect_tx)
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goto ice_destroy_tunnel_err;
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sect_tx->count = CPU_TO_LE16(1);
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/* copy original boost entry to update package buffer, one copy to RX
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* section, another copy to the TX section
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*/
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for (i = 0; i < hw->tnl.count && i < ICE_TUNNEL_MAX_ENTRIES; i++)
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if (hw->tnl.tbl[i].valid && hw->tnl.tbl[i].in_use &&
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(all || hw->tnl.tbl[i].port == port)) {
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ice_memcpy(sect_rx->tcam + i,
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hw->tnl.tbl[i].boost_entry,
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sizeof(*sect_rx->tcam),
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ICE_NONDMA_TO_NONDMA);
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ice_memcpy(sect_tx->tcam + i,
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hw->tnl.tbl[i].boost_entry,
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sizeof(*sect_tx->tcam),
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ICE_NONDMA_TO_NONDMA);
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hw->tnl.tbl[i].marked = true;
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}
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status = ice_update_pkg(hw, ice_pkg_buf(bld), 1);
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if (!status)
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for (i = 0; i < hw->tnl.count &&
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i < ICE_TUNNEL_MAX_ENTRIES; i++)
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if (hw->tnl.tbl[i].marked) {
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hw->tnl.tbl[i].port = 0;
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hw->tnl.tbl[i].in_use = false;
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hw->tnl.tbl[i].marked = false;
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}
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ice_destroy_tunnel_err:
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ice_pkg_buf_free(hw, bld);
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return status;
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}
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/**
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* ice_find_prot_off - find prot ID and offset pair, based on prof and FV index
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* @hw: pointer to the hardware structure
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@ -33,6 +33,12 @@ ice_find_label_value(struct ice_seg *ice_seg, char const *name, u32 type,
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enum ice_status
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ice_get_sw_fv_list(struct ice_hw *hw, u16 *prot_ids, u8 ids_cnt,
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struct LIST_HEAD_TYPE *fv_list);
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enum ice_status
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ice_create_tunnel(struct ice_hw *hw, enum ice_tunnel_type type, u16 port);
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enum ice_status ice_destroy_tunnel(struct ice_hw *hw, u16 port, bool all);
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bool ice_tunnel_port_in_use(struct ice_hw *hw, u16 port, u16 *index);
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bool
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ice_tunnel_get_type(struct ice_hw *hw, u16 port, enum ice_tunnel_type *type);
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/* XLT2/VSI group functions */
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