/** * ice_sect_id - returns section ID * @blk: block type * @sect: section type * * This helper function returns the proper section ID given a block type and a * section type.
*/ static u32 ice_sect_id(enum ice_block blk, enum ice_sect sect)
{ return ice_sect_lkup[blk][sect];
}
/** * ice_hw_ptype_ena - check if the PTYPE is enabled or not * @hw: pointer to the HW structure * @ptype: the hardware PTYPE
*/ bool ice_hw_ptype_ena(struct ice_hw *hw, u16 ptype)
{ return ptype < ICE_FLOW_PTYPE_MAX &&
test_bit(ptype, hw->hw_ptype);
}
/* Key creation */
#define ICE_DC_KEY 0x1 /* don't care */ #define ICE_DC_KEYINV 0x1 #define ICE_NM_KEY 0x0 /* never match */ #define ICE_NM_KEYINV 0x0 #define ICE_0_KEY 0x1 /* match 0 */ #define ICE_0_KEYINV 0x0 #define ICE_1_KEY 0x0 /* match 1 */ #define ICE_1_KEYINV 0x1
/** * ice_gen_key_word - generate 16-bits of a key/mask word * @val: the value * @valid: valid bits mask (change only the valid bits) * @dont_care: don't care mask * @nvr_mtch: never match mask * @key: pointer to an array of where the resulting key portion * @key_inv: pointer to an array of where the resulting key invert portion * * This function generates 16-bits from a 8-bit value, an 8-bit don't care mask * and an 8-bit never match mask. The 16-bits of output are divided into 8 bits * of key and 8 bits of key invert. * * '0' = b01, always match a 0 bit * '1' = b10, always match a 1 bit * '?' = b11, don't care bit (always matches) * '~' = b00, never match bit * * Input: * val: b0 1 0 1 0 1 * dont_care: b0 0 1 1 0 0 * never_mtch: b0 0 0 0 1 1 * ------------------------------ * Result: key: b01 10 11 11 00 00
*/ staticint
ice_gen_key_word(u8 val, u8 valid, u8 dont_care, u8 nvr_mtch, u8 *key,
u8 *key_inv)
{
u8 in_key = *key, in_key_inv = *key_inv;
u8 i;
/* 'dont_care' and 'nvr_mtch' masks cannot overlap */ if ((dont_care ^ nvr_mtch) != (dont_care | nvr_mtch)) return -EIO;
*key = 0;
*key_inv = 0;
/* encode the 8 bits into 8-bit key and 8-bit key invert */ for (i = 0; i < 8; i++) {
*key >>= 1;
*key_inv >>= 1;
/** * ice_bits_max_set - determine if the number of bits set is within a maximum * @mask: pointer to the byte array which is the mask * @size: the number of bytes in the mask * @max: the max number of set bits * * This function determines if there are at most 'max' number of bits set in an * array. Returns true if the number for bits set is <= max or will return false * otherwise.
*/ staticbool ice_bits_max_set(const u8 *mask, u16 size, u16 max)
{
u16 count = 0;
u16 i;
/* check each byte */ for (i = 0; i < size; i++) { /* if 0, go to next byte */ if (!mask[i]) continue;
/* We know there is at least one set bit in this byte because of * the above check; if we already have found 'max' number of * bits set, then we can return failure now.
*/ if (count == max) returnfalse;
/* count the bits in this byte, checking threshold */
count += hweight8(mask[i]); if (count > max) returnfalse;
}
returntrue;
}
/** * ice_set_key - generate a variable sized key with multiples of 16-bits * @key: pointer to where the key will be stored * @size: the size of the complete key in bytes (must be even) * @val: array of 8-bit values that makes up the value portion of the key * @upd: array of 8-bit masks that determine what key portion to update * @dc: array of 8-bit masks that make up the don't care mask * @nm: array of 8-bit masks that make up the never match mask * @off: the offset of the first byte in the key to update * @len: the number of bytes in the key update * * This function generates a key from a value, a don't care mask and a never * match mask. * upd, dc, and nm are optional parameters, and can be NULL: * upd == NULL --> upd mask is all 1's (update all bits) * dc == NULL --> dc mask is all 0's (no don't care bits) * nm == NULL --> nm mask is all 0's (no never match bits)
*/ staticint
ice_set_key(u8 *key, u16 size, u8 *val, u8 *upd, u8 *dc, u8 *nm, u16 off,
u16 len)
{
u16 half_size;
u16 i;
/* size must be a multiple of 2 bytes. */ if (size % 2) return -EIO;
half_size = size / 2; if (off + len > half_size) return -EIO;
/* Make sure at most one bit is set in the never match mask. Having more * than one never match mask bit set will cause HW to consume excessive * power otherwise; this is a power management efficiency check.
*/ #define ICE_NVR_MTCH_BITS_MAX 1 if (nm && !ice_bits_max_set(nm, len, ICE_NVR_MTCH_BITS_MAX)) return -EIO;
for (i = 0; i < len; i++) if (ice_gen_key_word(val[i], upd ? upd[i] : 0xff,
dc ? dc[i] : 0, nm ? nm[i] : 0,
key + off + i, key + half_size + off + i)) return -EIO;
return 0;
}
/** * ice_acquire_change_lock * @hw: pointer to the HW structure * @access: access type (read or write) * * This function will request ownership of the change lock.
*/ int
ice_acquire_change_lock(struct ice_hw *hw, enum ice_aq_res_access_type access)
{ return ice_acquire_res(hw, ICE_CHANGE_LOCK_RES_ID, access,
ICE_CHANGE_LOCK_TIMEOUT);
}
/** * ice_release_change_lock * @hw: pointer to the HW structure * * This function will release the change lock using the proper Admin Command.
*/ void ice_release_change_lock(struct ice_hw *hw)
{
ice_release_res(hw, ICE_CHANGE_LOCK_RES_ID);
}
/** * ice_get_open_tunnel_port - retrieve an open tunnel port * @hw: pointer to the HW structure * @port: returns open port * @type: type of tunnel, can be TNL_LAST if it doesn't matter
*/ bool
ice_get_open_tunnel_port(struct ice_hw *hw, u16 *port, enum ice_tunnel_type type)
{ bool res = false;
u16 i;
mutex_lock(&hw->tnl_lock);
for (i = 0; i < hw->tnl.count && i < ICE_TUNNEL_MAX_ENTRIES; i++) if (hw->tnl.tbl[i].valid && hw->tnl.tbl[i].port &&
(type == TNL_LAST || type == hw->tnl.tbl[i].type)) {
*port = hw->tnl.tbl[i].port;
res = true; break;
}
mutex_unlock(&hw->tnl_lock);
return res;
}
/** * ice_upd_dvm_boost_entry * @hw: pointer to the HW structure * @entry: pointer to double vlan boost entry info
*/ staticint
ice_upd_dvm_boost_entry(struct ice_hw *hw, struct ice_dvm_entry *entry)
{ struct ice_boost_tcam_section *sect_rx, *sect_tx; int status = -ENOSPC; struct ice_buf_build *bld;
u8 val, dc, nm;
bld = ice_pkg_buf_alloc(hw); if (!bld) return -ENOMEM;
/* allocate 2 sections, one for Rx parser, one for Tx parser */ if (ice_pkg_buf_reserve_section(bld, 2)) goto ice_upd_dvm_boost_entry_err;
/* copy original boost entry to update package buffer */
memcpy(sect_rx->tcam, entry->boost_entry, sizeof(*sect_rx->tcam));
/* re-write the don't care and never match bits accordingly */ if (entry->enable) { /* all bits are don't care */
val = 0x00;
dc = 0xFF;
nm = 0x00;
} else { /* disable, one never match bit, the rest are don't care */
val = 0x00;
dc = 0xF7;
nm = 0x08;
}
/** * ice_set_dvm_boost_entries * @hw: pointer to the HW structure * * Enable double vlan by updating the appropriate boost tcam entries.
*/ int ice_set_dvm_boost_entries(struct ice_hw *hw)
{
u16 i;
for (i = 0; i < hw->dvm_upd.count; i++) { int status;
status = ice_upd_dvm_boost_entry(hw, &hw->dvm_upd.tbl[i]); if (status) return status;
}
return 0;
}
/** * ice_tunnel_idx_to_entry - convert linear index to the sparse one * @hw: pointer to the HW structure * @type: type of tunnel * @idx: linear index * * Stack assumes we have 2 linear tables with indexes [0, count_valid), * but really the port table may be sprase, and types are mixed, so convert * the stack index into the device index.
*/ static u16 ice_tunnel_idx_to_entry(struct ice_hw *hw, enum ice_tunnel_type type,
u16 idx)
{
u16 i;
for (i = 0; i < hw->tnl.count && i < ICE_TUNNEL_MAX_ENTRIES; i++) if (hw->tnl.tbl[i].valid &&
hw->tnl.tbl[i].type == type &&
idx-- == 0) return i;
WARN_ON_ONCE(1); return 0;
}
/** * ice_create_tunnel * @hw: pointer to the HW structure * @index: device table entry * @type: type of tunnel * @port: port of tunnel to create * * Create a tunnel by updating the parse graph in the parser. We do that by * creating a package buffer with the tunnel info and issuing an update package * command.
*/ staticint
ice_create_tunnel(struct ice_hw *hw, u16 index, enum ice_tunnel_type type, u16 port)
{ struct ice_boost_tcam_section *sect_rx, *sect_tx; struct ice_buf_build *bld; int status = -ENOSPC;
mutex_lock(&hw->tnl_lock);
bld = ice_pkg_buf_alloc(hw); if (!bld) {
status = -ENOMEM; goto ice_create_tunnel_end;
}
/* allocate 2 sections, one for Rx parser, one for Tx parser */ if (ice_pkg_buf_reserve_section(bld, 2)) goto ice_create_tunnel_err;
/* copy original boost entry to update package buffer */
memcpy(sect_rx->tcam, hw->tnl.tbl[index].boost_entry, sizeof(*sect_rx->tcam));
/* over-write the never-match dest port key bits with the encoded port * bits
*/
ice_set_key((u8 *)§_rx->tcam[0].key, sizeof(sect_rx->tcam[0].key),
(u8 *)&port, NULL, NULL, NULL,
(u16)offsetof(struct ice_boost_key_value, hv_dst_port_key), sizeof(sect_rx->tcam[0].key.key.hv_dst_port_key));
/* exact copy of entry to Tx section entry */
memcpy(sect_tx->tcam, sect_rx->tcam, sizeof(*sect_tx->tcam));
status = ice_update_pkg(hw, ice_pkg_buf(bld), 1); if (!status)
hw->tnl.tbl[index].port = port;
/** * ice_destroy_tunnel * @hw: pointer to the HW structure * @index: device table entry * @type: type of tunnel * @port: port of tunnel to destroy (ignored if the all parameter is true) * * Destroys a tunnel or all tunnels by creating an update package buffer * targeting the specific updates requested and then performing an update * package.
*/ staticint
ice_destroy_tunnel(struct ice_hw *hw, u16 index, enum ice_tunnel_type type,
u16 port)
{ struct ice_boost_tcam_section *sect_rx, *sect_tx; struct ice_buf_build *bld; int status = -ENOSPC;
mutex_lock(&hw->tnl_lock);
if (WARN_ON(!hw->tnl.tbl[index].valid ||
hw->tnl.tbl[index].type != type ||
hw->tnl.tbl[index].port != port)) {
status = -EIO; goto ice_destroy_tunnel_end;
}
bld = ice_pkg_buf_alloc(hw); if (!bld) {
status = -ENOMEM; goto ice_destroy_tunnel_end;
}
/* allocate 2 sections, one for Rx parser, one for Tx parser */ if (ice_pkg_buf_reserve_section(bld, 2)) goto ice_destroy_tunnel_err;
/* copy original boost entry to update package buffer, one copy to Rx * section, another copy to the Tx section
*/
memcpy(sect_rx->tcam, hw->tnl.tbl[index].boost_entry, sizeof(*sect_rx->tcam));
memcpy(sect_tx->tcam, hw->tnl.tbl[index].boost_entry, sizeof(*sect_tx->tcam));
status = ice_update_pkg(hw, ice_pkg_buf(bld), 1); if (!status)
hw->tnl.tbl[index].port = 0;
status = ice_destroy_tunnel(&pf->hw, ti->hw_priv, tnl_type,
ntohs(ti->port)); if (status) {
netdev_err(netdev, "Error removing UDP tunnel - %d\n",
status); return -EIO;
}
return 0;
}
/** * ice_find_prot_off - find prot ID and offset pair, based on prof and FV index * @hw: pointer to the hardware structure * @blk: hardware block * @prof: profile ID * @fv_idx: field vector word index * @prot: variable to receive the protocol ID * @off: variable to receive the protocol offset
*/ int
ice_find_prot_off(struct ice_hw *hw, enum ice_block blk, u8 prof, u16 fv_idx,
u8 *prot, u16 *off)
{ struct ice_fv_word *fv_ext;
if (prof >= hw->blk[blk].es.count) return -EINVAL;
if (fv_idx >= hw->blk[blk].es.fvw) return -EINVAL;
/** * ice_ptg_find_ptype - Search for packet type group using packet type (ptype) * @hw: pointer to the hardware structure * @blk: HW block * @ptype: the ptype to search for * @ptg: pointer to variable that receives the PTG * * This function will search the PTGs for a particular ptype, returning the * PTG ID that contains it through the PTG parameter, with the value of * ICE_DEFAULT_PTG (0) meaning it is part the default PTG.
*/ staticint
ice_ptg_find_ptype(struct ice_hw *hw, enum ice_block blk, u16 ptype, u8 *ptg)
{ if (ptype >= ICE_XLT1_CNT || !ptg) return -EINVAL;
/** * ice_ptg_alloc_val - Allocates a new packet type group ID by value * @hw: pointer to the hardware structure * @blk: HW block * @ptg: the PTG to allocate * * This function allocates a given packet type group ID specified by the PTG * parameter.
*/ staticvoid ice_ptg_alloc_val(struct ice_hw *hw, enum ice_block blk, u8 ptg)
{
hw->blk[blk].xlt1.ptg_tbl[ptg].in_use = true;
}
/** * ice_ptg_remove_ptype - Removes ptype from a particular packet type group * @hw: pointer to the hardware structure * @blk: HW block * @ptype: the ptype to remove * @ptg: the PTG to remove the ptype from * * This function will remove the ptype from the specific PTG, and move it to * the default PTG (ICE_DEFAULT_PTG).
*/ staticint
ice_ptg_remove_ptype(struct ice_hw *hw, enum ice_block blk, u16 ptype, u8 ptg)
{ struct ice_ptg_ptype **ch; struct ice_ptg_ptype *p;
if (ptype > ICE_XLT1_CNT - 1) return -EINVAL;
if (!hw->blk[blk].xlt1.ptg_tbl[ptg].in_use) return -ENOENT;
/* Should not happen if .in_use is set, bad config */ if (!hw->blk[blk].xlt1.ptg_tbl[ptg].first_ptype) return -EIO;
/* find the ptype within this PTG, and bypass the link over it */
p = hw->blk[blk].xlt1.ptg_tbl[ptg].first_ptype;
ch = &hw->blk[blk].xlt1.ptg_tbl[ptg].first_ptype; while (p) { if (ptype == (p - hw->blk[blk].xlt1.ptypes)) {
*ch = p->next_ptype; break;
}
/** * ice_ptg_add_mv_ptype - Adds/moves ptype to a particular packet type group * @hw: pointer to the hardware structure * @blk: HW block * @ptype: the ptype to add or move * @ptg: the PTG to add or move the ptype to * * This function will either add or move a ptype to a particular PTG depending * on if the ptype is already part of another group. Note that using a * destination PTG ID of ICE_DEFAULT_PTG (0) will move the ptype to the * default PTG.
*/ staticint
ice_ptg_add_mv_ptype(struct ice_hw *hw, enum ice_block blk, u16 ptype, u8 ptg)
{
u8 original_ptg; int status;
if (ptype > ICE_XLT1_CNT - 1) return -EINVAL;
if (!hw->blk[blk].xlt1.ptg_tbl[ptg].in_use && ptg != ICE_DEFAULT_PTG) return -ENOENT;
status = ice_ptg_find_ptype(hw, blk, ptype, &original_ptg); if (status) return status;
/* Is ptype already in the correct PTG? */ if (original_ptg == ptg) return 0;
/* Remove from original PTG and move back to the default PTG */ if (original_ptg != ICE_DEFAULT_PTG)
ice_ptg_remove_ptype(hw, blk, ptype, original_ptg);
/* Moving to default PTG? Then we're done with this request */ if (ptg == ICE_DEFAULT_PTG) return 0;
/* Add ptype to PTG at beginning of list */
hw->blk[blk].xlt1.ptypes[ptype].next_ptype =
hw->blk[blk].xlt1.ptg_tbl[ptg].first_ptype;
hw->blk[blk].xlt1.ptg_tbl[ptg].first_ptype =
&hw->blk[blk].xlt1.ptypes[ptype];
/** * ice_match_prop_lst - determine if properties of two lists match * @list1: first properties list * @list2: second properties list * * Count, cookies and the order must match in order to be considered equivalent.
*/ staticbool
ice_match_prop_lst(struct list_head *list1, struct list_head *list2)
{ struct ice_vsig_prof *tmp1; struct ice_vsig_prof *tmp2;
u16 chk_count = 0;
u16 count = 0;
/* profile cookies must compare, and in the exact same order to take * into account priority
*/ while (count--) { if (tmp2->profile_cookie != tmp1->profile_cookie) returnfalse;
/** * ice_vsig_find_vsi - find a VSIG that contains a specified VSI * @hw: pointer to the hardware structure * @blk: HW block * @vsi: VSI of interest * @vsig: pointer to receive the VSI group * * This function will lookup the VSI entry in the XLT2 list and return * the VSI group its associated with.
*/ staticint
ice_vsig_find_vsi(struct ice_hw *hw, enum ice_block blk, u16 vsi, u16 *vsig)
{ if (!vsig || vsi >= ICE_MAX_VSI) return -EINVAL;
/* As long as there's a default or valid VSIG associated with the input * VSI, the functions returns a success. Any handling of VSIG will be * done by the following add, update or remove functions.
*/
*vsig = hw->blk[blk].xlt2.vsis[vsi].vsig;
return 0;
}
/** * ice_vsig_alloc_val - allocate a new VSIG by value * @hw: pointer to the hardware structure * @blk: HW block * @vsig: the VSIG to allocate * * This function will allocate a given VSIG specified by the VSIG parameter.
*/ static u16 ice_vsig_alloc_val(struct ice_hw *hw, enum ice_block blk, u16 vsig)
{
u16 idx = vsig & ICE_VSIG_IDX_M;
if (!hw->blk[blk].xlt2.vsig_tbl[idx].in_use) {
INIT_LIST_HEAD(&hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst);
hw->blk[blk].xlt2.vsig_tbl[idx].in_use = true;
}
return ICE_VSIG_VALUE(idx, hw->pf_id);
}
/** * ice_vsig_alloc - Finds a free entry and allocates a new VSIG * @hw: pointer to the hardware structure * @blk: HW block * * This function will iterate through the VSIG list and mark the first * unused entry for the new VSIG entry as used and return that value.
*/ static u16 ice_vsig_alloc(struct ice_hw *hw, enum ice_block blk)
{
u16 i;
for (i = 1; i < ICE_MAX_VSIGS; i++) if (!hw->blk[blk].xlt2.vsig_tbl[i].in_use) return ice_vsig_alloc_val(hw, blk, i);
return ICE_DEFAULT_VSIG;
}
/** * ice_find_dup_props_vsig - find VSI group with a specified set of properties * @hw: pointer to the hardware structure * @blk: HW block * @chs: characteristic list * @vsig: returns the VSIG with the matching profiles, if found * * Each VSIG is associated with a characteristic set; i.e. all VSIs under * a group have the same characteristic set. To check if there exists a VSIG * which has the same characteristics as the input characteristics; this * function will iterate through the XLT2 list and return the VSIG that has a * matching configuration. In order to make sure that priorities are accounted * for, the list must match exactly, including the order in which the * characteristics are listed.
*/ staticint
ice_find_dup_props_vsig(struct ice_hw *hw, enum ice_block blk, struct list_head *chs, u16 *vsig)
{ struct ice_xlt2 *xlt2 = &hw->blk[blk].xlt2;
u16 i;
for (i = 0; i < xlt2->count; i++) if (xlt2->vsig_tbl[i].in_use &&
ice_match_prop_lst(chs, &xlt2->vsig_tbl[i].prop_lst)) {
*vsig = ICE_VSIG_VALUE(i, hw->pf_id); return 0;
}
return -ENOENT;
}
/** * ice_vsig_free - free VSI group * @hw: pointer to the hardware structure * @blk: HW block * @vsig: VSIG to remove * * The function will remove all VSIs associated with the input VSIG and move * them to the DEFAULT_VSIG and mark the VSIG available.
*/ staticint ice_vsig_free(struct ice_hw *hw, enum ice_block blk, u16 vsig)
{ struct ice_vsig_prof *dtmp, *del; struct ice_vsig_vsi *vsi_cur;
u16 idx;
if (!hw->blk[blk].xlt2.vsig_tbl[idx].in_use) return -ENOENT;
hw->blk[blk].xlt2.vsig_tbl[idx].in_use = false;
vsi_cur = hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi; /* If the VSIG has at least 1 VSI then iterate through the * list and remove the VSIs before deleting the group.
*/ if (vsi_cur) { /* remove all vsis associated with this VSIG XLT2 entry */ do { struct ice_vsig_vsi *tmp = vsi_cur->next_vsi;
/* if VSIG characteristic list was cleared for reset * re-initialize the list head
*/
INIT_LIST_HEAD(&hw->blk[blk].xlt2.vsig_tbl[idx].prop_lst);
return 0;
}
/** * ice_vsig_remove_vsi - remove VSI from VSIG * @hw: pointer to the hardware structure * @blk: HW block * @vsi: VSI to remove * @vsig: VSI group to remove from * * The function will remove the input VSI from its VSI group and move it * to the DEFAULT_VSIG.
*/ staticint
ice_vsig_remove_vsi(struct ice_hw *hw, enum ice_block blk, u16 vsi, u16 vsig)
{ struct ice_vsig_vsi **vsi_head, *vsi_cur, *vsi_tgt;
u16 idx;
idx = vsig & ICE_VSIG_IDX_M;
if (vsi >= ICE_MAX_VSI || idx >= ICE_MAX_VSIGS) return -EINVAL;
if (!hw->blk[blk].xlt2.vsig_tbl[idx].in_use) return -ENOENT;
/* entry already in default VSIG, don't have to remove */ if (idx == ICE_DEFAULT_VSIG) return 0;
vsi_head = &hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi; if (!(*vsi_head)) return -EIO;
/* iterate the VSI list, skip over the entry to be removed */ while (vsi_cur) { if (vsi_tgt == vsi_cur) {
(*vsi_head) = vsi_cur->next_vsi; break;
}
vsi_head = &vsi_cur->next_vsi;
vsi_cur = vsi_cur->next_vsi;
}
/* verify if VSI was removed from group list */ if (!vsi_cur) return -ENOENT;
/** * ice_vsig_add_mv_vsi - add or move a VSI to a VSI group * @hw: pointer to the hardware structure * @blk: HW block * @vsi: VSI to move * @vsig: destination VSI group * * This function will move or add the input VSI to the target VSIG. * The function will find the original VSIG the VSI belongs to and * move the entry to the DEFAULT_VSIG, update the original VSIG and * then move entry to the new VSIG.
*/ staticint
ice_vsig_add_mv_vsi(struct ice_hw *hw, enum ice_block blk, u16 vsi, u16 vsig)
{ struct ice_vsig_vsi *tmp;
u16 orig_vsig, idx; int status;
idx = vsig & ICE_VSIG_IDX_M;
if (vsi >= ICE_MAX_VSI || idx >= ICE_MAX_VSIGS) return -EINVAL;
/* if VSIG not in use and VSIG is not default type this VSIG * doesn't exist.
*/ if (!hw->blk[blk].xlt2.vsig_tbl[idx].in_use &&
vsig != ICE_DEFAULT_VSIG) return -ENOENT;
status = ice_vsig_find_vsi(hw, blk, vsi, &orig_vsig); if (status) return status;
/* no update required if vsigs match */ if (orig_vsig == vsig) return 0;
if (orig_vsig != ICE_DEFAULT_VSIG) { /* remove entry from orig_vsig and add to default VSIG */
status = ice_vsig_remove_vsi(hw, blk, vsi, orig_vsig); if (status) return status;
}
if (idx == ICE_DEFAULT_VSIG) return 0;
/* Create VSI entry and add VSIG and prop_mask values */
hw->blk[blk].xlt2.vsis[vsi].vsig = vsig;
hw->blk[blk].xlt2.vsis[vsi].changed = 1;
/* Add new entry to the head of the VSIG list */
tmp = hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi;
hw->blk[blk].xlt2.vsig_tbl[idx].first_vsi =
&hw->blk[blk].xlt2.vsis[vsi];
hw->blk[blk].xlt2.vsis[vsi].next_vsi = tmp;
hw->blk[blk].xlt2.t[vsi] = vsig;
return 0;
}
/** * ice_prof_has_mask_idx - determine if profile index masking is identical * @hw: pointer to the hardware structure * @blk: HW block * @prof: profile to check * @idx: profile index to check * @mask: mask to match
*/ staticbool
ice_prof_has_mask_idx(struct ice_hw *hw, enum ice_block blk, u8 prof, u16 idx,
u16 mask)
{ bool expect_no_mask = false; bool found = false; bool match = false;
u16 i;
/* If mask is 0x0000 or 0xffff, then there is no masking */ if (mask == 0 || mask == 0xffff)
expect_no_mask = true;
/* Scan the enabled masks on this profile, for the specified idx */ for (i = hw->blk[blk].masks.first; i < hw->blk[blk].masks.first +
hw->blk[blk].masks.count; i++) if (hw->blk[blk].es.mask_ena[prof] & BIT(i)) if (hw->blk[blk].masks.masks[i].in_use &&
hw->blk[blk].masks.masks[i].idx == idx) {
found = true; if (hw->blk[blk].masks.masks[i].mask == mask)
match = true; break;
}
if (expect_no_mask) { if (found) returnfalse;
} else { if (!match) returnfalse;
}
returntrue;
}
/** * ice_prof_has_mask - determine if profile masking is identical * @hw: pointer to the hardware structure * @blk: HW block * @prof: profile to check * @masks: masks to match
*/ staticbool
ice_prof_has_mask(struct ice_hw *hw, enum ice_block blk, u8 prof, u16 *masks)
{
u16 i;
/* es->mask_ena[prof] will have the mask */ for (i = 0; i < hw->blk[blk].es.fvw; i++) if (!ice_prof_has_mask_idx(hw, blk, prof, i, masks[i])) returnfalse;
returntrue;
}
/** * ice_find_prof_id_with_mask - find profile ID for a given field vector * @hw: pointer to the hardware structure * @blk: HW block * @fv: field vector to search for * @masks: masks for FV * @symm: symmetric setting for RSS flows * @prof_id: receives the profile ID
*/ staticint
ice_find_prof_id_with_mask(struct ice_hw *hw, enum ice_block blk, struct ice_fv_word *fv, u16 *masks, bool symm,
u8 *prof_id)
{ struct ice_es *es = &hw->blk[blk].es;
u8 i;
/* For FD, we don't want to re-use a existed profile with the same * field vector and mask. This will cause rule interference.
*/ if (blk == ICE_BLK_FD) return -ENOENT;
for (i = 0; i < (u8)es->count; i++) {
u16 off = i * es->fvw;
if (blk == ICE_BLK_RSS && es->symm[i] != symm) continue;
if (memcmp(&es->t[off], fv, es->fvw * sizeof(*fv))) continue;
/* check if masks settings are the same for this profile */ if (masks && !ice_prof_has_mask(hw, blk, i, masks)) continue;
*prof_id = i; return 0;
}
return -ENOENT;
}
/** * ice_prof_id_rsrc_type - get profile ID resource type for a block type * @blk: the block type * @rsrc_type: pointer to variable to receive the resource type
*/ staticbool ice_prof_id_rsrc_type(enum ice_block blk, u16 *rsrc_type)
{ switch (blk) { case ICE_BLK_FD:
*rsrc_type = ICE_AQC_RES_TYPE_FD_PROF_BLDR_PROFID; break; case ICE_BLK_RSS:
*rsrc_type = ICE_AQC_RES_TYPE_HASH_PROF_BLDR_PROFID; break; default: returnfalse;
} returntrue;
}
/** * ice_tcam_ent_rsrc_type - get TCAM entry resource type for a block type * @blk: the block type * @rsrc_type: pointer to variable to receive the resource type
*/ staticbool ice_tcam_ent_rsrc_type(enum ice_block blk, u16 *rsrc_type)
{ switch (blk) { case ICE_BLK_FD:
*rsrc_type = ICE_AQC_RES_TYPE_FD_PROF_BLDR_TCAM; break; case ICE_BLK_RSS:
*rsrc_type = ICE_AQC_RES_TYPE_HASH_PROF_BLDR_TCAM; break; default: returnfalse;
} returntrue;
}
/** * ice_alloc_tcam_ent - allocate hardware TCAM entry * @hw: pointer to the HW struct * @blk: the block to allocate the TCAM for * @btm: true to allocate from bottom of table, false to allocate from top * @tcam_idx: pointer to variable to receive the TCAM entry * * This function allocates a new entry in a Profile ID TCAM for a specific * block.
*/ staticint
ice_alloc_tcam_ent(struct ice_hw *hw, enum ice_block blk, bool btm,
u16 *tcam_idx)
{
u16 res_type;
if (!ice_tcam_ent_rsrc_type(blk, &res_type)) return -EINVAL;
/** * ice_free_tcam_ent - free hardware TCAM entry * @hw: pointer to the HW struct * @blk: the block from which to free the TCAM entry * @tcam_idx: the TCAM entry to free * * This function frees an entry in a Profile ID TCAM for a specific block.
*/ staticint
ice_free_tcam_ent(struct ice_hw *hw, enum ice_block blk, u16 tcam_idx)
{
u16 res_type;
if (!ice_tcam_ent_rsrc_type(blk, &res_type)) return -EINVAL;
/** * ice_alloc_prof_id - allocate profile ID * @hw: pointer to the HW struct * @blk: the block to allocate the profile ID for * @prof_id: pointer to variable to receive the profile ID * * This function allocates a new profile ID, which also corresponds to a Field * Vector (Extraction Sequence) entry.
*/ staticint ice_alloc_prof_id(struct ice_hw *hw, enum ice_block blk, u8 *prof_id)
{
u16 res_type;
u16 get_prof; int status;
if (!ice_prof_id_rsrc_type(blk, &res_type)) return -EINVAL;
status = ice_alloc_hw_res(hw, res_type, 1, false, &get_prof); if (!status)
*prof_id = (u8)get_prof;
return status;
}
/** * ice_free_prof_id - free profile ID * @hw: pointer to the HW struct * @blk: the block from which to free the profile ID * @prof_id: the profile ID to free * * This function frees a profile ID, which also corresponds to a Field Vector.
*/ staticint ice_free_prof_id(struct ice_hw *hw, enum ice_block blk, u8 prof_id)
{
u16 tmp_prof_id = (u16)prof_id;
u16 res_type;
if (!ice_prof_id_rsrc_type(blk, &res_type)) return -EINVAL;
/** * ice_prof_inc_ref - increment reference count for profile * @hw: pointer to the HW struct * @blk: the block from which to free the profile ID * @prof_id: the profile ID for which to increment the reference count
*/ staticint ice_prof_inc_ref(struct ice_hw *hw, enum ice_block blk, u8 prof_id)
{ if (prof_id > hw->blk[blk].es.count) return -EINVAL;
hw->blk[blk].es.ref_count[prof_id]++;
return 0;
}
/** * ice_write_prof_mask_reg - write profile mask register * @hw: pointer to the HW struct * @blk: hardware block * @mask_idx: mask index * @idx: index of the FV which will use the mask * @mask: the 16-bit mask
*/ staticvoid
ice_write_prof_mask_reg(struct ice_hw *hw, enum ice_block blk, u16 mask_idx,
u16 idx, u16 mask)
{
u32 offset;
u32 val;
switch (blk) { case ICE_BLK_RSS:
offset = GLQF_HMASK(mask_idx);
val = FIELD_PREP(GLQF_HMASK_MSK_INDEX_M, idx);
val |= FIELD_PREP(GLQF_HMASK_MASK_M, mask); break; case ICE_BLK_FD:
offset = GLQF_FDMASK(mask_idx);
val = FIELD_PREP(GLQF_FDMASK_MSK_INDEX_M, idx);
val |= FIELD_PREP(GLQF_FDMASK_MASK_M, mask); break; default:
ice_debug(hw, ICE_DBG_PKG, "No profile masks for block %d\n",
blk); return;
}
for (i = hw->blk[blk].masks.first;
i < hw->blk[blk].masks.first + hw->blk[blk].masks.count; i++)
ice_write_prof_mask_reg(hw, blk, i, 0, 0);
}
/** * ice_init_all_prof_masks - initialize all prof masks * @hw: pointer to the HW struct
*/ staticvoid ice_init_all_prof_masks(struct ice_hw *hw)
{
ice_init_prof_masks(hw, ICE_BLK_RSS);
ice_init_prof_masks(hw, ICE_BLK_FD);
}
/** * ice_alloc_prof_mask - allocate profile mask * @hw: pointer to the HW struct * @blk: hardware block * @idx: index of FV which will use the mask * @mask: the 16-bit mask * @mask_idx: variable to receive the mask index
*/ staticint
ice_alloc_prof_mask(struct ice_hw *hw, enum ice_block blk, u16 idx, u16 mask,
u16 *mask_idx)
{ bool found_unused = false, found_copy = false;
u16 unused_idx = 0, copy_idx = 0; int status = -ENOSPC;
u16 i;
if (blk != ICE_BLK_RSS && blk != ICE_BLK_FD) return -EINVAL;
mutex_lock(&hw->blk[blk].masks.lock);
for (i = hw->blk[blk].masks.first;
i < hw->blk[blk].masks.first + hw->blk[blk].masks.count; i++) if (hw->blk[blk].masks.masks[i].in_use) { /* if mask is in use and it exactly duplicates the * desired mask and index, then in can be reused
*/ if (hw->blk[blk].masks.masks[i].mask == mask &&
hw->blk[blk].masks.masks[i].idx == idx) {
found_copy = true;
copy_idx = i; break;
}
} else { /* save off unused index, but keep searching in case * there is an exact match later on
*/ if (!found_unused) {
found_unused = true;
unused_idx = i;
}
}
if (found_copy)
i = copy_idx; elseif (found_unused)
i = unused_idx; else goto err_ice_alloc_prof_mask;
/* update mask for a new entry */ if (found_unused) {
hw->blk[blk].masks.masks[i].in_use = true;
hw->blk[blk].masks.masks[i].mask = mask;
hw->blk[blk].masks.masks[i].idx = idx;
hw->blk[blk].masks.masks[i].ref = 0;
ice_write_prof_mask_reg(hw, blk, i, idx, mask);
}
hw->blk[blk].masks.masks[i].ref++;
*mask_idx = i;
status = 0;
/** * ice_free_prof_masks - free all profile masks for a profile * @hw: pointer to the HW struct * @blk: hardware block * @prof_id: profile ID
*/ staticint
ice_free_prof_masks(struct ice_hw *hw, enum ice_block blk, u16 prof_id)
{
u32 mask_bm;
u16 i;
if (blk != ICE_BLK_RSS && blk != ICE_BLK_FD) return -EINVAL;
mask_bm = hw->blk[blk].es.mask_ena[prof_id]; for (i = 0; i < BITS_PER_BYTE * sizeof(mask_bm); i++) if (mask_bm & BIT(i))
ice_free_prof_mask(hw, blk, i);
return 0;
}
/** * ice_shutdown_prof_masks - releases lock for masking * @hw: pointer to the HW struct * @blk: hardware block * * This should be called before unloading the driver
*/ staticvoid ice_shutdown_prof_masks(struct ice_hw *hw, enum ice_block blk)
{
u16 i;
mutex_lock(&hw->blk[blk].masks.lock);
for (i = hw->blk[blk].masks.first;
i < hw->blk[blk].masks.first + hw->blk[blk].masks.count; i++) {
ice_write_prof_mask_reg(hw, blk, i, 0, 0);
/** * ice_shutdown_all_prof_masks - releases all locks for masking * @hw: pointer to the HW struct * * This should be called before unloading the driver
*/ staticvoid ice_shutdown_all_prof_masks(struct ice_hw *hw)
{
ice_shutdown_prof_masks(hw, ICE_BLK_RSS);
ice_shutdown_prof_masks(hw, ICE_BLK_FD);
}
/** * ice_update_prof_masking - set registers according to masking * @hw: pointer to the HW struct * @blk: hardware block * @prof_id: profile ID * @masks: masks
*/ staticint
ice_update_prof_masking(struct ice_hw *hw, enum ice_block blk, u16 prof_id,
u16 *masks)
{ bool err = false;
u32 ena_mask = 0;
u16 idx;
u16 i;
/* Only support FD and RSS masking, otherwise nothing to be done */ if (blk != ICE_BLK_RSS && blk != ICE_BLK_FD) return 0;
for (i = 0; i < hw->blk[blk].es.fvw; i++) if (masks[i] && masks[i] != 0xFFFF) { if (!ice_alloc_prof_mask(hw, blk, i, masks[i], &idx)) {
ena_mask |= BIT(idx);
} else { /* not enough bitmaps */
err = true; break;
}
}
if (err) { /* free any bitmaps we have allocated */ for (i = 0; i < BITS_PER_BYTE * sizeof(ena_mask); i++) if (ena_mask & BIT(i))
ice_free_prof_mask(hw, blk, i);
return -EIO;
}
/* enable the masks for this profile */
ice_write_prof_mask_enable_res(hw, blk, prof_id, ena_mask);
/* store enabled masks with profile so that they can be freed later */
hw->blk[blk].es.mask_ena[prof_id] = ena_mask;
return 0;
}
/** * ice_write_es - write an extraction sequence and symmetric setting to hardware * @hw: pointer to the HW struct * @blk: the block in which to write the extraction sequence * @prof_id: the profile ID to write * @fv: pointer to the extraction sequence to write - NULL to clear extraction * @symm: symmetric setting for RSS profiles
*/ staticvoid
ice_write_es(struct ice_hw *hw, enum ice_block blk, u8 prof_id, struct ice_fv_word *fv, bool symm)
{
u16 off;
if (blk == ICE_BLK_RSS)
hw->blk[blk].es.symm[prof_id] = symm;
}
/** * ice_prof_dec_ref - decrement reference count for profile * @hw: pointer to the HW struct * @blk: the block from which to free the profile ID * @prof_id: the profile ID for which to decrement the reference count
*/ staticint
ice_prof_dec_ref(struct ice_hw *hw, enum ice_block blk, u8 prof_id)
{ if (prof_id > hw->blk[blk].es.count) return -EINVAL;
/** * ice_init_sw_xlt2_db - init software XLT2 database from HW tables * @hw: pointer to the hardware structure * @blk: the HW block to initialize
*/ staticvoid ice_init_sw_xlt2_db(struct ice_hw *hw, enum ice_block blk)
{
u16 vsi;
for (vsi = 0; vsi < hw->blk[blk].xlt2.count; vsi++) {
u16 vsig;
vsig = hw->blk[blk].xlt2.t[vsi]; if (vsig) {
ice_vsig_alloc_val(hw, blk, vsig);
ice_vsig_add_mv_vsi(hw, blk, vsi, vsig); /* no changes at this time, since this has been * initialized from the original package
*/
hw->blk[blk].xlt2.vsis[vsi].changed = 0;
}
}
}
/** * ice_init_sw_db - init software database from HW tables * @hw: pointer to the hardware structure
*/ staticvoid ice_init_sw_db(struct ice_hw *hw)
{
u16 i;
for (i = 0; i < ICE_BLK_COUNT; i++) {
ice_init_sw_xlt1_db(hw, (enum ice_block)i);
ice_init_sw_xlt2_db(hw, (enum ice_block)i);
}
}
/** * ice_fill_tbl - Reads content of a single table type into database * @hw: pointer to the hardware structure * @block_id: Block ID of the table to copy * @sid: Section ID of the table to copy * * Will attempt to read the entire content of a given table of a single block * into the driver database. We assume that the buffer will always * be as large or larger than the data contained in the package. If * this condition is not met, there is most likely an error in the package * contents.
*/ staticvoid ice_fill_tbl(struct ice_hw *hw, enum ice_block block_id, u32 sid)
{
u32 dst_len, sect_len, offset = 0; struct ice_prof_redir_section *pr; struct ice_prof_id_section *pid; struct ice_xlt1_section *xlt1; struct ice_xlt2_section *xlt2; struct ice_sw_fv_section *es; struct ice_pkg_enum state;
u8 *src, *dst; void *sect;
/* if the HW segment pointer is null then the first iteration of * ice_pkg_enum_section() will fail. In this case the HW tables will * not be filled and return success.
*/ if (!hw->seg) {
ice_debug(hw, ICE_DBG_PKG, "hw->seg is NULL, tables are not filled\n"); return;
}
while (sect) { switch (sid) { case ICE_SID_XLT1_SW: case ICE_SID_XLT1_FD: case ICE_SID_XLT1_RSS: case ICE_SID_XLT1_ACL: case ICE_SID_XLT1_PE:
xlt1 = sect;
src = xlt1->value;
sect_len = le16_to_cpu(xlt1->count) * sizeof(*hw->blk[block_id].xlt1.t);
dst = hw->blk[block_id].xlt1.t;
dst_len = hw->blk[block_id].xlt1.count * sizeof(*hw->blk[block_id].xlt1.t); break; case ICE_SID_XLT2_SW: case ICE_SID_XLT2_FD: case ICE_SID_XLT2_RSS: case ICE_SID_XLT2_ACL: case ICE_SID_XLT2_PE:
xlt2 = sect;
src = (__force u8 *)xlt2->value;
sect_len = le16_to_cpu(xlt2->count) * sizeof(*hw->blk[block_id].xlt2.t);
dst = (u8 *)hw->blk[block_id].xlt2.t;
dst_len = hw->blk[block_id].xlt2.count * sizeof(*hw->blk[block_id].xlt2.t); break; case ICE_SID_PROFID_TCAM_SW: case ICE_SID_PROFID_TCAM_FD: case ICE_SID_PROFID_TCAM_RSS: case ICE_SID_PROFID_TCAM_ACL: case ICE_SID_PROFID_TCAM_PE:
pid = sect;
src = (u8 *)pid->entry;
sect_len = le16_to_cpu(pid->count) * sizeof(*hw->blk[block_id].prof.t);
dst = (u8 *)hw->blk[block_id].prof.t;
dst_len = hw->blk[block_id].prof.count * sizeof(*hw->blk[block_id].prof.t); break; case ICE_SID_PROFID_REDIR_SW: case ICE_SID_PROFID_REDIR_FD: case ICE_SID_PROFID_REDIR_RSS: case ICE_SID_PROFID_REDIR_ACL: case ICE_SID_PROFID_REDIR_PE:
pr = sect;
src = pr->redir_value;
sect_len = le16_to_cpu(pr->count) * sizeof(*hw->blk[block_id].prof_redir.t);
dst = hw->blk[block_id].prof_redir.t;
dst_len = hw->blk[block_id].prof_redir.count * sizeof(*hw->blk[block_id].prof_redir.t); break; case ICE_SID_FLD_VEC_SW: case ICE_SID_FLD_VEC_FD: case ICE_SID_FLD_VEC_RSS: case ICE_SID_FLD_VEC_ACL: case ICE_SID_FLD_VEC_PE:
es = sect;
src = (u8 *)es->fv;
sect_len = (u32)(le16_to_cpu(es->count) *
hw->blk[block_id].es.fvw) * sizeof(*hw->blk[block_id].es.t);
dst = (u8 *)hw->blk[block_id].es.t;
dst_len = (u32)(hw->blk[block_id].es.count *
hw->blk[block_id].es.fvw) * sizeof(*hw->blk[block_id].es.t); break; default: return;
}
/* if the section offset exceeds destination length, terminate * table fill.
*/ if (offset > dst_len) return;
/* if the sum of section size and offset exceed destination size * then we are out of bounds of the HW table size for that PF. * Changing section length to fill the remaining table space * of that PF.
*/ if ((offset + sect_len) > dst_len)
sect_len = dst_len - offset;
/** * ice_fill_blk_tbls - Read package context for tables * @hw: pointer to the hardware structure * * Reads the current package contents and populates the driver * database with the data iteratively for all advanced feature * blocks. Assume that the HW tables have been allocated.
*/ void ice_fill_blk_tbls(struct ice_hw *hw)
{
u8 i;
for (i = 0; i < ICE_BLK_COUNT; i++) { enum ice_block blk_id = (enum ice_block)i;
/** * ice_prof_gen_key - generate profile ID key * @hw: pointer to the HW struct * @blk: the block in which to write profile ID to * @ptg: packet type group (PTG) portion of key * @vsig: VSIG portion of key * @cdid: CDID portion of key * @flags: flag portion of key * @vl_msk: valid mask * @dc_msk: don't care mask * @nm_msk: never match mask * @key: output of profile ID key
*/ staticint
ice_prof_gen_key(struct ice_hw *hw, enum ice_block blk, u8 ptg, u16 vsig,
u8 cdid, u16 flags, u8 vl_msk[ICE_TCAM_KEY_VAL_SZ],
u8 dc_msk[ICE_TCAM_KEY_VAL_SZ], u8 nm_msk[ICE_TCAM_KEY_VAL_SZ],
u8 key[ICE_TCAM_KEY_SZ])
{ struct ice_prof_id_key inkey;
/** * ice_tcam_write_entry - write TCAM entry * @hw: pointer to the HW struct * @blk: the block in which to write profile ID to * @idx: the entry index to write to * @prof_id: profile ID * @ptg: packet type group (PTG) portion of key * @vsig: VSIG portion of key * @cdid: CDID portion of key * @flags: flag portion of key * @vl_msk: valid mask * @dc_msk: don't care mask * @nm_msk: never match mask
*/ staticint
ice_tcam_write_entry(struct ice_hw *hw, enum ice_block blk, u16 idx,
u8 prof_id, u8 ptg, u16 vsig, u8 cdid, u16 flags,
u8 vl_msk[ICE_TCAM_KEY_VAL_SZ],
u8 dc_msk[ICE_TCAM_KEY_VAL_SZ],
u8 nm_msk[ICE_TCAM_KEY_VAL_SZ])
{ struct ice_prof_tcam_entry; int status;
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