/** * fm10k_reset_hw_pf - PF hardware reset * @hw: pointer to hardware structure * * This function should return the hardware to a state similar to the * one it is in after being powered on.
**/ static s32 fm10k_reset_hw_pf(struct fm10k_hw *hw)
{
s32 err;
u32 reg;
u16 i;
/* Lock ITR2 reg 0 into itself and disable interrupt moderation */
fm10k_write_reg(hw, FM10K_ITR2(0), 0);
fm10k_write_reg(hw, FM10K_INT_CTRL, 0);
/* We assume here Tx and Rx queue 0 are owned by the PF */
/* Shut off VF access to their queues forcing them to queue 0 */ for (i = 0; i < FM10K_TQMAP_TABLE_SIZE; i++) {
fm10k_write_reg(hw, FM10K_TQMAP(i), 0);
fm10k_write_reg(hw, FM10K_RQMAP(i), 0);
}
/* shut down all rings */
err = fm10k_disable_queues_generic(hw, FM10K_MAX_QUEUES); if (err == FM10K_ERR_REQUESTS_PENDING) {
hw->mac.reset_while_pending++; goto force_reset;
} elseif (err) { return err;
}
/* Verify that DMA is no longer active */
reg = fm10k_read_reg(hw, FM10K_DMA_CTRL); if (reg & (FM10K_DMA_CTRL_TX_ACTIVE | FM10K_DMA_CTRL_RX_ACTIVE)) return FM10K_ERR_DMA_PENDING;
/* Flush write and allow 100us for reset to complete */
fm10k_write_flush(hw);
udelay(FM10K_RESET_TIMEOUT);
/* Verify we made it out of reset */
reg = fm10k_read_reg(hw, FM10K_IP); if (!(reg & FM10K_IP_NOTINRESET)) return FM10K_ERR_RESET_FAILED;
return 0;
}
/** * fm10k_is_ari_hierarchy_pf - Indicate ARI hierarchy support * @hw: pointer to hardware structure * * Looks at the ARI hierarchy bit to determine whether ARI is supported or not.
**/ staticbool fm10k_is_ari_hierarchy_pf(struct fm10k_hw *hw)
{
u16 sriov_ctrl = fm10k_read_pci_cfg_word(hw, FM10K_PCIE_SRIOV_CTRL);
/* Establish default VSI as valid */
fm10k_write_reg(hw, FM10K_DGLORTDEC(fm10k_dglort_default), 0);
fm10k_write_reg(hw, FM10K_DGLORTMAP(fm10k_dglort_default),
FM10K_DGLORTMAP_ANY);
/* Invalidate all other GLORT entries */ for (i = 1; i < FM10K_DGLORT_COUNT; i++)
fm10k_write_reg(hw, FM10K_DGLORTMAP(i), FM10K_DGLORTMAP_NONE);
/* reset ITR2(0) to point to itself */
fm10k_write_reg(hw, FM10K_ITR2(0), 0);
/* reset VF ITR2(0) to point to 0 avoid PF registers */
fm10k_write_reg(hw, FM10K_ITR2(FM10K_ITR_REG_COUNT_PF), 0);
/* loop through all PF ITR2 registers pointing them to the previous */ for (i = 1; i < FM10K_ITR_REG_COUNT_PF; i++)
fm10k_write_reg(hw, FM10K_ITR2(i), i - 1);
/* Enable interrupt moderator if not already enabled */
fm10k_write_reg(hw, FM10K_INT_CTRL, FM10K_INT_CTRL_ENABLEMODERATOR);
/* set max hold interval to align with 1.024 usec in all modes and * store ITR scale
*/ switch (hw->bus.speed) { case fm10k_bus_speed_2500:
dma_ctrl = FM10K_DMA_CTRL_MAX_HOLD_1US_GEN1;
hw->mac.itr_scale = FM10K_TDLEN_ITR_SCALE_GEN1; break; case fm10k_bus_speed_5000:
dma_ctrl = FM10K_DMA_CTRL_MAX_HOLD_1US_GEN2;
hw->mac.itr_scale = FM10K_TDLEN_ITR_SCALE_GEN2; break; case fm10k_bus_speed_8000:
dma_ctrl = FM10K_DMA_CTRL_MAX_HOLD_1US_GEN3;
hw->mac.itr_scale = FM10K_TDLEN_ITR_SCALE_GEN3; break; default:
dma_ctrl = 0; /* just in case, assume Gen3 ITR scale */
hw->mac.itr_scale = FM10K_TDLEN_ITR_SCALE_GEN3; break;
}
/* Enable DMA engine * Set Rx Descriptor size to 32 * Set Minimum MSS to 64 * Set Maximum number of Rx queues to 256 / 32 Descriptor
*/
dma_ctrl |= FM10K_DMA_CTRL_TX_ENABLE | FM10K_DMA_CTRL_RX_ENABLE |
FM10K_DMA_CTRL_RX_DESC_SIZE | FM10K_DMA_CTRL_MINMSS_64 |
FM10K_DMA_CTRL_32_DESC;
fm10k_write_reg(hw, FM10K_DMA_CTRL, dma_ctrl);
/* record maximum queue count, we limit ourselves to 128 */
hw->mac.max_queues = FM10K_MAX_QUEUES_PF;
/* We support either 64 VFs or 7 VFs depending on if we have ARI */
hw->iov.total_vfs = fm10k_is_ari_hierarchy_pf(hw) ? 64 : 7;
return 0;
}
/** * fm10k_update_vlan_pf - Update status of VLAN ID in VLAN filter table * @hw: pointer to hardware structure * @vid: VLAN ID to add to table * @vsi: Index indicating VF ID or PF ID in table * @set: Indicates if this is a set or clear operation * * This function adds or removes the corresponding VLAN ID from the VLAN * filter table for the corresponding function. In addition to the * standard set/clear that supports one bit a multi-bit write is * supported to set 64 bits at a time.
**/ static s32 fm10k_update_vlan_pf(struct fm10k_hw *hw, u32 vid, u8 vsi, bool set)
{
u32 vlan_table, reg, mask, bit, len;
/* verify the VSI index is valid */ if (vsi > FM10K_VLAN_TABLE_VSI_MAX) return FM10K_ERR_PARAM;
/* VLAN multi-bit write: * The multi-bit write has several parts to it. * 24 16 8 0 * 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | RSVD0 | Length |C|RSVD0| VLAN ID | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * * VLAN ID: Vlan Starting value * RSVD0: Reserved section, must be 0 * C: Flag field, 0 is set, 1 is clear (Used in VF VLAN message) * Length: Number of times to repeat the bit being set
*/
len = vid >> 16;
vid = (vid << 17) >> 17;
/* verify the reserved 0 fields are 0 */ if (len >= FM10K_VLAN_TABLE_VID_MAX || vid >= FM10K_VLAN_TABLE_VID_MAX) return FM10K_ERR_PARAM;
/* Loop through the table updating all required VLANs */ for (reg = FM10K_VLAN_TABLE(vsi, vid / 32), bit = vid % 32;
len < FM10K_VLAN_TABLE_VID_MAX;
len -= 32 - bit, reg++, bit = 0) { /* record the initial state of the register */
vlan_table = fm10k_read_reg(hw, reg);
/* truncate mask if we are at the start or end of the run */
mask = (~(u32)0 >> ((len < 31) ? 31 - len : 0)) << bit;
/* make necessary modifications to the register */
mask &= set ? ~vlan_table : vlan_table; if (mask)
fm10k_write_reg(hw, reg, vlan_table ^ mask);
}
return 0;
}
/** * fm10k_read_mac_addr_pf - Read device MAC address * @hw: pointer to the HW structure * * Reads the device MAC address from the SM_AREA and stores the value.
**/ static s32 fm10k_read_mac_addr_pf(struct fm10k_hw *hw)
{
u8 perm_addr[ETH_ALEN];
u32 serial_num;
/** * fm10k_glort_valid_pf - Validate that the provided glort is valid * @hw: pointer to the HW structure * @glort: base glort to be validated * * This function will return an error if the provided glort is invalid
**/ bool fm10k_glort_valid_pf(struct fm10k_hw *hw, u16 glort)
{
glort &= hw->mac.dglort_map >> FM10K_DGLORTMAP_MASK_SHIFT;
/** * fm10k_update_xc_addr_pf - Update device addresses * @hw: pointer to the HW structure * @glort: base resource tag for this request * @mac: MAC address to add/remove from table * @vid: VLAN ID to add/remove from table * @add: Indicates if this is an add or remove operation * @flags: flags field to indicate add and secure * * This function generates a message to the Switch API requesting * that the given logical port add/remove the given L2 MAC/VLAN address.
**/ static s32 fm10k_update_xc_addr_pf(struct fm10k_hw *hw, u16 glort, const u8 *mac, u16 vid, bool add, u8 flags)
{ struct fm10k_mbx_info *mbx = &hw->mbx; struct fm10k_mac_update mac_update;
u32 msg[5];
/* clear set bit from VLAN ID */
vid &= ~FM10K_VLAN_CLEAR;
/* if glort or VLAN are not valid return error */ if (!fm10k_glort_valid_pf(hw, glort) || vid >= FM10K_VLAN_TABLE_VID_MAX) return FM10K_ERR_PARAM;
/** * fm10k_update_uc_addr_pf - Update device unicast addresses * @hw: pointer to the HW structure * @glort: base resource tag for this request * @mac: MAC address to add/remove from table * @vid: VLAN ID to add/remove from table * @add: Indicates if this is an add or remove operation * @flags: flags field to indicate add and secure * * This function is used to add or remove unicast addresses for * the PF.
**/ static s32 fm10k_update_uc_addr_pf(struct fm10k_hw *hw, u16 glort, const u8 *mac, u16 vid, bool add, u8 flags)
{ /* verify MAC address is valid */ if (!is_valid_ether_addr(mac)) return FM10K_ERR_PARAM;
/** * fm10k_update_mc_addr_pf - Update device multicast addresses * @hw: pointer to the HW structure * @glort: base resource tag for this request * @mac: MAC address to add/remove from table * @vid: VLAN ID to add/remove from table * @add: Indicates if this is an add or remove operation * * This function is used to add or remove multicast MAC addresses for * the PF.
**/ static s32 fm10k_update_mc_addr_pf(struct fm10k_hw *hw, u16 glort, const u8 *mac, u16 vid, bool add)
{ /* verify multicast address is valid */ if (!is_multicast_ether_addr(mac)) return FM10K_ERR_PARAM;
/** * fm10k_update_xcast_mode_pf - Request update of multicast mode * @hw: pointer to hardware structure * @glort: base resource tag for this request * @mode: integer value indicating mode being requested * * This function will attempt to request a higher mode for the port * so that it can enable either multicast, multicast promiscuous, or * promiscuous mode of operation.
**/ static s32 fm10k_update_xcast_mode_pf(struct fm10k_hw *hw, u16 glort, u8 mode)
{ struct fm10k_mbx_info *mbx = &hw->mbx;
u32 msg[3], xcast_mode;
if (mode > FM10K_XCAST_MODE_NONE) return FM10K_ERR_PARAM;
/* if glort is not valid return error */ if (!fm10k_glort_valid_pf(hw, glort)) return FM10K_ERR_PARAM;
/* write xcast mode as a single u32 value, * lower 16 bits: glort * upper 16 bits: mode
*/
xcast_mode = ((u32)mode << 16) | glort;
/** * fm10k_update_int_moderator_pf - Update interrupt moderator linked list * @hw: pointer to hardware structure * * This function walks through the MSI-X vector table to determine the * number of active interrupts and based on that information updates the * interrupt moderator linked list.
**/ staticvoid fm10k_update_int_moderator_pf(struct fm10k_hw *hw)
{
u32 i;
/* Disable interrupt moderator */
fm10k_write_reg(hw, FM10K_INT_CTRL, 0);
/* loop through PF from last to first looking enabled vectors */ for (i = FM10K_ITR_REG_COUNT_PF - 1; i; i--) { if (!fm10k_read_reg(hw, FM10K_MSIX_VECTOR_MASK(i))) break;
}
/* always reset VFITR2[0] to point to last enabled PF vector */
fm10k_write_reg(hw, FM10K_ITR2(FM10K_ITR_REG_COUNT_PF), i);
/* reset ITR2[0] to point to last enabled PF vector */ if (!hw->iov.num_vfs)
fm10k_write_reg(hw, FM10K_ITR2(0), i);
/* Enable interrupt moderator */
fm10k_write_reg(hw, FM10K_INT_CTRL, FM10K_INT_CTRL_ENABLEMODERATOR);
}
/** * fm10k_update_lport_state_pf - Notify the switch of a change in port state * @hw: pointer to the HW structure * @glort: base resource tag for this request * @count: number of logical ports being updated * @enable: boolean value indicating enable or disable * * This function is used to add/remove a logical port from the switch.
**/ static s32 fm10k_update_lport_state_pf(struct fm10k_hw *hw, u16 glort,
u16 count, bool enable)
{ struct fm10k_mbx_info *mbx = &hw->mbx;
u32 msg[3], lport_msg;
/* do nothing if we are being asked to create or destroy 0 ports */ if (!count) return 0;
/* if glort is not valid return error */ if (!fm10k_glort_valid_pf(hw, glort)) return FM10K_ERR_PARAM;
/* reset multicast mode if deleting lport */ if (!enable)
fm10k_update_xcast_mode_pf(hw, glort, FM10K_XCAST_MODE_NONE);
/* construct the lport message from the 2 pieces of data we have */
lport_msg = ((u32)count << 16) | glort;
/** * fm10k_configure_dglort_map_pf - Configures GLORT entry and queues * @hw: pointer to hardware structure * @dglort: pointer to dglort configuration structure * * Reads the configuration structure contained in dglort_cfg and uses * that information to then populate a DGLORTMAP/DEC entry and the queues * to which it has been assigned.
**/ static s32 fm10k_configure_dglort_map_pf(struct fm10k_hw *hw, struct fm10k_dglort_cfg *dglort)
{
u16 glort, queue_count, vsi_count, pc_count;
u16 vsi, queue, pc, q_idx;
u32 txqctl, dglortdec, dglortmap;
/* verify the dglort pointer */ if (!dglort) return FM10K_ERR_PARAM;
/* determine count of PCs and queues */
queue_count = BIT(dglort->queue_l + dglort->rss_l + dglort->vsi_l);
pc_count = BIT(dglort->pc_l);
/* configure PC for Tx queues */ for (pc = 0; pc < pc_count; pc++) {
q_idx = pc + dglort->queue_b; for (queue = 0; queue < queue_count; queue++) { if (q_idx >= FM10K_MAX_QUEUES) break;
/** * fm10k_iov_assign_resources_pf - Assign pool resources for virtualization * @hw: pointer to the HW structure * @num_vfs: number of VFs to be allocated * @num_pools: number of virtualization pools to be allocated * * Allocates queues and traffic classes to virtualization entities to prepare * the PF for SR-IOV and VMDq
**/ static s32 fm10k_iov_assign_resources_pf(struct fm10k_hw *hw, u16 num_vfs,
u16 num_pools)
{
u16 qmap_stride, qpp, vpp, vf_q_idx, vf_q_idx0, qmap_idx;
u32 vid = hw->mac.default_vid << FM10K_TXQCTL_VID_SHIFT; int i, j;
/* hardware only supports up to 64 pools */ if (num_pools > 64) return FM10K_ERR_PARAM;
/* the number of VFs cannot exceed the number of pools */ if ((num_vfs > num_pools) || (num_vfs > hw->iov.total_vfs)) return FM10K_ERR_PARAM;
/* record number of virtualization entities */
hw->iov.num_vfs = num_vfs;
hw->iov.num_pools = num_pools;
/* calculate starting index for queues */
vf_q_idx = fm10k_vf_queue_index(hw, 0);
qmap_idx = 0;
/* establish TCs with -1 credits and no quanta to prevent transmit */ for (i = 0; i < num_vfs; i++) {
fm10k_write_reg(hw, FM10K_TC_MAXCREDIT(i), 0);
fm10k_write_reg(hw, FM10K_TC_RATE(i), 0);
fm10k_write_reg(hw, FM10K_TC_CREDIT(i),
FM10K_TC_CREDIT_CREDIT_MASK);
}
/* zero out all mbmem registers */ for (i = FM10K_VFMBMEM_LEN * num_vfs; i--;)
fm10k_write_reg(hw, FM10K_MBMEM(i), 0);
/* loop through unallocated rings assigning them back to PF */ for (i = FM10K_MAX_QUEUES_PF; i < vf_q_idx; i++) {
fm10k_write_reg(hw, FM10K_TXDCTL(i), 0);
fm10k_write_reg(hw, FM10K_TXQCTL(i), FM10K_TXQCTL_PF |
FM10K_TXQCTL_UNLIMITED_BW | vid);
fm10k_write_reg(hw, FM10K_RXQCTL(i), FM10K_RXQCTL_PF);
}
/* PF should have already updated VFITR2[0] */
/* update all ITR registers to flow to VFITR2[0] */ for (i = FM10K_ITR_REG_COUNT_PF + 1; i < FM10K_ITR_REG_COUNT; i++) { if (!(i & (vpp - 1)))
fm10k_write_reg(hw, FM10K_ITR2(i), i - vpp); else
fm10k_write_reg(hw, FM10K_ITR2(i), i - 1);
}
/* update PF ITR2[0] to reference the last vector */
fm10k_write_reg(hw, FM10K_ITR2(0),
fm10k_vf_vector_index(hw, num_vfs - 1));
/* loop through rings populating rings and TCs */ for (i = 0; i < num_vfs; i++) { /* record index for VF queue 0 for use in end of loop */
vf_q_idx0 = vf_q_idx;
for (j = 0; j < qpp; j++, qmap_idx++, vf_q_idx++) { /* assign VF and locked TC to queues */
fm10k_write_reg(hw, FM10K_TXDCTL(vf_q_idx), 0);
fm10k_write_reg(hw, FM10K_TXQCTL(vf_q_idx),
(i << FM10K_TXQCTL_TC_SHIFT) | i |
FM10K_TXQCTL_VF | vid);
fm10k_write_reg(hw, FM10K_RXDCTL(vf_q_idx),
FM10K_RXDCTL_WRITE_BACK_MIN_DELAY |
FM10K_RXDCTL_DROP_ON_EMPTY);
fm10k_write_reg(hw, FM10K_RXQCTL(vf_q_idx),
(i << FM10K_RXQCTL_VF_SHIFT) |
FM10K_RXQCTL_VF);
/* repeat the first ring for all of the remaining VF rings */ for (; j < qmap_stride; j++, qmap_idx++) {
fm10k_write_reg(hw, FM10K_TQMAP(qmap_idx), vf_q_idx0);
fm10k_write_reg(hw, FM10K_RQMAP(qmap_idx), vf_q_idx0);
}
}
/* loop through remaining indexes assigning all to queue 0 */ while (qmap_idx < FM10K_TQMAP_TABLE_SIZE) {
fm10k_write_reg(hw, FM10K_TQMAP(qmap_idx), 0);
fm10k_write_reg(hw, FM10K_RQMAP(qmap_idx), 0);
qmap_idx++;
}
return 0;
}
/** * fm10k_iov_configure_tc_pf - Configure the shaping group for VF * @hw: pointer to the HW structure * @vf_idx: index of VF receiving GLORT * @rate: Rate indicated in Mb/s * * Configured the TC for a given VF to allow only up to a given number * of Mb/s of outgoing Tx throughput.
**/ static s32 fm10k_iov_configure_tc_pf(struct fm10k_hw *hw, u16 vf_idx, int rate)
{ /* configure defaults */
u32 interval = FM10K_TC_RATE_INTERVAL_4US_GEN3;
u32 tc_rate = FM10K_TC_RATE_QUANTA_MASK;
/* verify vf is in range */ if (vf_idx >= hw->iov.num_vfs) return FM10K_ERR_PARAM;
/* set interval to align with 4.096 usec in all modes */ switch (hw->bus.speed) { case fm10k_bus_speed_2500:
interval = FM10K_TC_RATE_INTERVAL_4US_GEN1; break; case fm10k_bus_speed_5000:
interval = FM10K_TC_RATE_INTERVAL_4US_GEN2; break; default: break;
}
if (rate) { if (rate > FM10K_VF_TC_MAX || rate < FM10K_VF_TC_MIN) return FM10K_ERR_PARAM;
/* The quanta is measured in Bytes per 4.096 or 8.192 usec * The rate is provided in Mbits per second * To tralslate from rate to quanta we need to multiply the * rate by 8.192 usec and divide by 8 bits/byte. To avoid * dealing with floating point we can round the values up * to the nearest whole number ratio which gives us 128 / 125.
*/
tc_rate = (rate * 128) / 125;
/* try to keep the rate limiting accurate by increasing * the number of credits and interval for rates less than 4Gb/s
*/ if (rate < 4000)
interval <<= 1; else
tc_rate >>= 1;
}
/* update rate limiter with new values */
fm10k_write_reg(hw, FM10K_TC_RATE(vf_idx), tc_rate | interval);
fm10k_write_reg(hw, FM10K_TC_MAXCREDIT(vf_idx), FM10K_TC_MAXCREDIT_64K);
fm10k_write_reg(hw, FM10K_TC_CREDIT(vf_idx), FM10K_TC_MAXCREDIT_64K);
return 0;
}
/** * fm10k_iov_assign_int_moderator_pf - Add VF interrupts to moderator list * @hw: pointer to the HW structure * @vf_idx: index of VF receiving GLORT * * Update the interrupt moderator linked list to include any MSI-X * interrupts which the VF has enabled in the MSI-X vector table.
**/ static s32 fm10k_iov_assign_int_moderator_pf(struct fm10k_hw *hw, u16 vf_idx)
{
u16 vf_v_idx, vf_v_limit, i;
/* verify vf is in range */ if (vf_idx >= hw->iov.num_vfs) return FM10K_ERR_PARAM;
/* search for first vector that is not masked */ for (i = vf_v_limit - 1; i > vf_v_idx; i--) { if (!fm10k_read_reg(hw, FM10K_MSIX_VECTOR_MASK(i))) break;
}
/* reset linked list so it now includes our active vectors */ if (vf_idx == (hw->iov.num_vfs - 1))
fm10k_write_reg(hw, FM10K_ITR2(0), i); else
fm10k_write_reg(hw, FM10K_ITR2(vf_v_limit), i);
return 0;
}
/** * fm10k_iov_assign_default_mac_vlan_pf - Assign a MAC and VLAN to VF * @hw: pointer to the HW structure * @vf_info: pointer to VF information structure * * Assign a MAC address and default VLAN to a VF and notify it of the update
**/ static s32 fm10k_iov_assign_default_mac_vlan_pf(struct fm10k_hw *hw, struct fm10k_vf_info *vf_info)
{
u16 qmap_stride, queues_per_pool, vf_q_idx, timeout, qmap_idx, i;
u32 msg[4], txdctl, txqctl, tdbal = 0, tdbah = 0;
s32 err = 0;
u16 vf_idx, vf_vid;
/* verify vf is in range */ if (!vf_info || vf_info->vf_idx >= hw->iov.num_vfs) return FM10K_ERR_PARAM;
/* calculate starting index for queues */
vf_idx = vf_info->vf_idx;
vf_q_idx = fm10k_vf_queue_index(hw, vf_idx);
qmap_idx = qmap_stride * vf_idx;
/* Determine correct default VLAN ID. The FM10K_VLAN_OVERRIDE bit is * used here to indicate to the VF that it will not have privilege to * write VLAN_TABLE. All policy is enforced on the PF but this allows * the VF to correctly report errors to userspace requests.
*/ if (vf_info->pf_vid)
vf_vid = vf_info->pf_vid | FM10K_VLAN_OVERRIDE; else
vf_vid = vf_info->sw_vid;
/* Configure Queue control register with new VLAN ID. The TXQCTL * register is RO from the VF, so the PF must do this even in the * case of notifying the VF of a new VID via the mailbox.
*/
txqctl = FIELD_PREP(FM10K_TXQCTL_VID_MASK, vf_vid);
txqctl |= (vf_idx << FM10K_TXQCTL_TC_SHIFT) |
FM10K_TXQCTL_VF | vf_idx;
for (i = 0; i < queues_per_pool; i++)
fm10k_write_reg(hw, FM10K_TXQCTL(vf_q_idx + i), txqctl);
/* try loading a message onto outgoing mailbox first */ if (vf_info->mbx.ops.enqueue_tx) {
err = vf_info->mbx.ops.enqueue_tx(hw, &vf_info->mbx, msg); if (err != FM10K_MBX_ERR_NO_MBX) return err;
err = 0;
}
/* If we aren't connected to a mailbox, this is most likely because * the VF driver is not running. It should thus be safe to re-map * queues and use the registers to pass the MAC address so that the VF * driver gets correct information during its initialization.
*/
/* MAP Tx queue back to 0 temporarily, and disable it */
fm10k_write_reg(hw, FM10K_TQMAP(qmap_idx), 0);
fm10k_write_reg(hw, FM10K_TXDCTL(vf_q_idx), 0);
/* verify ring has disabled before modifying base address registers */
txdctl = fm10k_read_reg(hw, FM10K_TXDCTL(vf_q_idx)); for (timeout = 0; txdctl & FM10K_TXDCTL_ENABLE; timeout++) { /* limit ourselves to a 1ms timeout */ if (timeout == 10) {
err = FM10K_ERR_DMA_PENDING; goto err_out;
}
/* Record the base address into queue 0 */
fm10k_write_reg(hw, FM10K_TDBAL(vf_q_idx), tdbal);
fm10k_write_reg(hw, FM10K_TDBAH(vf_q_idx), tdbah);
/* Provide the VF the ITR scale, using software-defined fields in TDLEN * to pass the information during VF initialization. See definition of * FM10K_TDLEN_ITR_SCALE_SHIFT for more details.
*/
fm10k_write_reg(hw, FM10K_TDLEN(vf_q_idx), hw->mac.itr_scale <<
FM10K_TDLEN_ITR_SCALE_SHIFT);
err_out: /* restore the queue back to VF ownership */
fm10k_write_reg(hw, FM10K_TQMAP(qmap_idx), vf_q_idx); return err;
}
/** * fm10k_iov_reset_resources_pf - Reassign queues and interrupts to a VF * @hw: pointer to the HW structure * @vf_info: pointer to VF information structure * * Reassign the interrupts and queues to a VF following an FLR
**/ static s32 fm10k_iov_reset_resources_pf(struct fm10k_hw *hw, struct fm10k_vf_info *vf_info)
{
u16 qmap_stride, queues_per_pool, vf_q_idx, qmap_idx;
u32 tdbal = 0, tdbah = 0, txqctl, rxqctl;
u16 vf_v_idx, vf_v_limit, vf_vid;
u8 vf_idx = vf_info->vf_idx; int i;
/* verify vf is in range */ if (vf_idx >= hw->iov.num_vfs) return FM10K_ERR_PARAM;
/* force timeout and then disconnect the mailbox */
vf_info->mbx.timeout = 0; if (vf_info->mbx.ops.disconnect)
vf_info->mbx.ops.disconnect(hw, &vf_info->mbx);
/* make all the queues inaccessible to the VF */ for (i = qmap_idx; i < (qmap_idx + qmap_stride); i++) {
fm10k_write_reg(hw, FM10K_TQMAP(i), 0);
fm10k_write_reg(hw, FM10K_RQMAP(i), 0);
}
/* calculate starting index for queues */
vf_q_idx = fm10k_vf_queue_index(hw, vf_idx);
/* determine correct default VLAN ID */ if (vf_info->pf_vid)
vf_vid = vf_info->pf_vid; else
vf_vid = vf_info->sw_vid;
/* stop further DMA and reset queue ownership back to VF */ for (i = vf_q_idx; i < (queues_per_pool + vf_q_idx); i++) {
fm10k_write_reg(hw, FM10K_TXDCTL(i), 0);
fm10k_write_reg(hw, FM10K_TXQCTL(i), txqctl);
fm10k_write_reg(hw, FM10K_RXDCTL(i),
FM10K_RXDCTL_WRITE_BACK_MIN_DELAY |
FM10K_RXDCTL_DROP_ON_EMPTY);
fm10k_write_reg(hw, FM10K_RXQCTL(i), rxqctl);
}
/* reset TC with -1 credits and no quanta to prevent transmit */
fm10k_write_reg(hw, FM10K_TC_MAXCREDIT(vf_idx), 0);
fm10k_write_reg(hw, FM10K_TC_RATE(vf_idx), 0);
fm10k_write_reg(hw, FM10K_TC_CREDIT(vf_idx),
FM10K_TC_CREDIT_CREDIT_MASK);
/* update our first entry in the table based on previous VF */ if (!vf_idx)
hw->mac.ops.update_int_moderator(hw); else
hw->iov.ops.assign_int_moderator(hw, vf_idx - 1);
/* reset linked list so it now includes our active vectors */ if (vf_idx == (hw->iov.num_vfs - 1))
fm10k_write_reg(hw, FM10K_ITR2(0), vf_v_idx); else
fm10k_write_reg(hw, FM10K_ITR2(vf_v_limit), vf_v_idx);
/* link remaining vectors so that next points to previous */ for (vf_v_idx++; vf_v_idx < vf_v_limit; vf_v_idx++)
fm10k_write_reg(hw, FM10K_ITR2(vf_v_idx), vf_v_idx - 1);
/* zero out MBMEM, VLAN_TABLE, RETA, RSSRK, and MRQC registers */ for (i = FM10K_VFMBMEM_LEN; i--;)
fm10k_write_reg(hw, FM10K_MBMEM_VF(vf_idx, i), 0); for (i = FM10K_VLAN_TABLE_SIZE; i--;)
fm10k_write_reg(hw, FM10K_VLAN_TABLE(vf_info->vsi, i), 0); for (i = FM10K_RETA_SIZE; i--;)
fm10k_write_reg(hw, FM10K_RETA(vf_info->vsi, i), 0); for (i = FM10K_RSSRK_SIZE; i--;)
fm10k_write_reg(hw, FM10K_RSSRK(vf_info->vsi, i), 0);
fm10k_write_reg(hw, FM10K_MRQC(vf_info->vsi), 0);
/* map queue pairs back to VF from last to first */ for (i = queues_per_pool; i--;) {
fm10k_write_reg(hw, FM10K_TDBAL(vf_q_idx + i), tdbal);
fm10k_write_reg(hw, FM10K_TDBAH(vf_q_idx + i), tdbah); /* See definition of FM10K_TDLEN_ITR_SCALE_SHIFT for an * explanation of how TDLEN is used.
*/
fm10k_write_reg(hw, FM10K_TDLEN(vf_q_idx + i),
hw->mac.itr_scale <<
FM10K_TDLEN_ITR_SCALE_SHIFT);
fm10k_write_reg(hw, FM10K_TQMAP(qmap_idx + i), vf_q_idx + i);
fm10k_write_reg(hw, FM10K_RQMAP(qmap_idx + i), vf_q_idx + i);
}
/* repeat the first ring for all the remaining VF rings */ for (i = queues_per_pool; i < qmap_stride; i++) {
fm10k_write_reg(hw, FM10K_TQMAP(qmap_idx + i), vf_q_idx);
fm10k_write_reg(hw, FM10K_RQMAP(qmap_idx + i), vf_q_idx);
}
return 0;
}
/** * fm10k_iov_set_lport_pf - Assign and enable a logical port for a given VF * @hw: pointer to hardware structure * @vf_info: pointer to VF information structure * @lport_idx: Logical port offset from the hardware glort * @flags: Set of capability flags to extend port beyond basic functionality * * This function allows enabling a VF port by assigning it a GLORT and * setting the flags so that it can enable an Rx mode.
**/ static s32 fm10k_iov_set_lport_pf(struct fm10k_hw *hw, struct fm10k_vf_info *vf_info,
u16 lport_idx, u8 flags)
{
u16 glort = (hw->mac.dglort_map + lport_idx) & FM10K_DGLORTMAP_NONE;
/* if glort is not valid return error */ if (!fm10k_glort_valid_pf(hw, glort)) return FM10K_ERR_PARAM;
/** * fm10k_iov_reset_lport_pf - Disable a logical port for a given VF * @hw: pointer to hardware structure * @vf_info: pointer to VF information structure * * This function disables a VF port by stripping it of a GLORT and * setting the flags so that it cannot enable any Rx mode.
**/ staticvoid fm10k_iov_reset_lport_pf(struct fm10k_hw *hw, struct fm10k_vf_info *vf_info)
{
u32 msg[1];
/* need to disable the port if it is already enabled */ if (FM10K_VF_FLAG_ENABLED(vf_info)) { /* notify switch that this port has been disabled */
fm10k_update_lport_state_pf(hw, vf_info->glort, 1, false);
/* generate port state response to notify VF it is not ready */
fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_LPORT_STATE);
vf_info->mbx.ops.enqueue_tx(hw, &vf_info->mbx, msg);
}
/* clear flags and glort if it exists */
vf_info->vf_flags = 0;
vf_info->glort = 0;
}
/** * fm10k_iov_update_stats_pf - Updates hardware related statistics for VFs * @hw: pointer to hardware structure * @q: stats for all queues of a VF * @vf_idx: index of VF * * This function collects queue stats for VFs.
**/ staticvoid fm10k_iov_update_stats_pf(struct fm10k_hw *hw, struct fm10k_hw_stats_q *q,
u16 vf_idx)
{
u32 idx, qpp;
/* get stats for all of the queues */
qpp = fm10k_queues_per_pool(hw);
idx = fm10k_vf_queue_index(hw, vf_idx);
fm10k_update_hw_stats_q(hw, q, idx, qpp);
}
/** * fm10k_iov_msg_msix_pf - Message handler for MSI-X request from VF * @hw: Pointer to hardware structure * @results: Pointer array to message, results[0] is pointer to message * @mbx: Pointer to mailbox information structure * * This function is a default handler for MSI-X requests from the VF. The * assumption is that in this case it is acceptable to just directly * hand off the message from the VF to the underlying shared code.
**/
s32 fm10k_iov_msg_msix_pf(struct fm10k_hw *hw, u32 __always_unused **results, struct fm10k_mbx_info *mbx)
{ struct fm10k_vf_info *vf_info = (struct fm10k_vf_info *)mbx;
u8 vf_idx = vf_info->vf_idx;
/** * fm10k_iov_select_vid - Select correct default VLAN ID * @vf_info: pointer to VF information structure * @vid: VLAN ID to correct * * Will report an error if the VLAN ID is out of range. For VID = 0, it will * return either the pf_vid or sw_vid depending on which one is set.
*/
s32 fm10k_iov_select_vid(struct fm10k_vf_info *vf_info, u16 vid)
{ if (!vid) return vf_info->pf_vid ? vf_info->pf_vid : vf_info->sw_vid; elseif (vf_info->pf_vid && vid != vf_info->pf_vid) return FM10K_ERR_PARAM; else return vid;
}
/** * fm10k_iov_supported_xcast_mode_pf - Determine best match for xcast mode * @vf_info: VF info structure containing capability flags * @mode: Requested xcast mode * * This function outputs the mode that most closely matches the requested * mode. If not modes match it will request we disable the port
**/ static u8 fm10k_iov_supported_xcast_mode_pf(struct fm10k_vf_info *vf_info,
u8 mode)
{
u8 vf_flags = vf_info->vf_flags;
/* match up mode to capabilities as best as possible */ switch (mode) { case FM10K_XCAST_MODE_PROMISC: if (vf_flags & FM10K_VF_FLAG_PROMISC_CAPABLE) return FM10K_XCAST_MODE_PROMISC;
fallthrough; case FM10K_XCAST_MODE_ALLMULTI: if (vf_flags & FM10K_VF_FLAG_ALLMULTI_CAPABLE) return FM10K_XCAST_MODE_ALLMULTI;
fallthrough; case FM10K_XCAST_MODE_MULTI: if (vf_flags & FM10K_VF_FLAG_MULTI_CAPABLE) return FM10K_XCAST_MODE_MULTI;
fallthrough; case FM10K_XCAST_MODE_NONE: if (vf_flags & FM10K_VF_FLAG_NONE_CAPABLE) return FM10K_XCAST_MODE_NONE;
fallthrough; default: break;
}
/* disable interface as it should not be able to request any */ return FM10K_XCAST_MODE_DISABLE;
}
/** * fm10k_iov_msg_lport_state_pf - Message handler for port state requests * @hw: Pointer to hardware structure * @results: Pointer array to message, results[0] is pointer to message * @mbx: Pointer to mailbox information structure * * This function is a default handler for port state requests. The port * state requests for now are basic and consist of enabling or disabling * the port.
**/
s32 fm10k_iov_msg_lport_state_pf(struct fm10k_hw *hw, u32 **results, struct fm10k_mbx_info *mbx)
{ struct fm10k_vf_info *vf_info = (struct fm10k_vf_info *)mbx;
s32 err = 0;
u32 msg[2];
u8 mode = 0;
/* verify VF is allowed to enable even minimal mode */ if (!(vf_info->vf_flags & FM10K_VF_FLAG_NONE_CAPABLE)) return FM10K_ERR_PARAM;
if (!!results[FM10K_LPORT_STATE_MSG_XCAST_MODE]) {
u32 *result = results[FM10K_LPORT_STATE_MSG_XCAST_MODE];
/* prep for possible demotion depending on capabilities */
mode = fm10k_iov_supported_xcast_mode_pf(vf_info, mode);
/* if mode is not currently enabled, enable it */ if (!(FM10K_VF_FLAG_ENABLED(vf_info) & BIT(mode)))
fm10k_update_xcast_mode_pf(hw, vf_info->glort, mode);
/* swap mode back to a bit flag */
mode = FM10K_VF_FLAG_SET_MODE(mode);
} elseif (!results[FM10K_LPORT_STATE_MSG_DISABLE]) { /* need to disable the port if it is already enabled */ if (FM10K_VF_FLAG_ENABLED(vf_info))
err = fm10k_update_lport_state_pf(hw, vf_info->glort,
1, false);
/* we need to clear VF_FLAG_ENABLED flags in order to ensure * that we actually re-enable the LPORT state below. Note that * this has no impact if the VF is already disabled, as the * flags are already cleared.
*/ if (!err)
vf_info->vf_flags = FM10K_VF_FLAG_CAPABLE(vf_info);
/* when enabling the port we should reset the rate limiters */
hw->iov.ops.configure_tc(hw, vf_info->vf_idx, vf_info->rate);
/* set mode for minimal functionality */
mode = FM10K_VF_FLAG_SET_MODE_NONE;
/* generate port state response to notify VF it is ready */
fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_LPORT_STATE);
fm10k_tlv_attr_put_bool(msg, FM10K_LPORT_STATE_MSG_READY);
mbx->ops.enqueue_tx(hw, mbx, msg);
}
/* if enable state toggled note the update */ if (!err && (!FM10K_VF_FLAG_ENABLED(vf_info) != !mode))
err = fm10k_update_lport_state_pf(hw, vf_info->glort, 1,
!!mode);
/* if state change succeeded, then update our stored state */
mode |= FM10K_VF_FLAG_CAPABLE(vf_info); if (!err)
vf_info->vf_flags = mode;
return err;
}
/** * fm10k_update_hw_stats_pf - Updates hardware related statistics of PF * @hw: pointer to hardware structure * @stats: pointer to the stats structure to update * * This function collects and aggregates global and per queue hardware * statistics.
**/ staticvoid fm10k_update_hw_stats_pf(struct fm10k_hw *hw, struct fm10k_hw_stats *stats)
{
u32 timeout, ur, ca, um, xec, vlan_drop, loopback_drop, nodesc_drop;
u32 id, id_prev;
/* Use Tx queue 0 as a canary to detect a reset */
id = fm10k_read_reg(hw, FM10K_TXQCTL(0));
/* Read Global Statistics */ do {
timeout = fm10k_read_hw_stats_32b(hw, FM10K_STATS_TIMEOUT,
&stats->timeout);
ur = fm10k_read_hw_stats_32b(hw, FM10K_STATS_UR, &stats->ur);
ca = fm10k_read_hw_stats_32b(hw, FM10K_STATS_CA, &stats->ca);
um = fm10k_read_hw_stats_32b(hw, FM10K_STATS_UM, &stats->um);
xec = fm10k_read_hw_stats_32b(hw, FM10K_STATS_XEC, &stats->xec);
vlan_drop = fm10k_read_hw_stats_32b(hw, FM10K_STATS_VLAN_DROP,
&stats->vlan_drop);
loopback_drop =
fm10k_read_hw_stats_32b(hw,
FM10K_STATS_LOOPBACK_DROP,
&stats->loopback_drop);
nodesc_drop = fm10k_read_hw_stats_32b(hw,
FM10K_STATS_NODESC_DROP,
&stats->nodesc_drop);
/* if value has not changed then we have consistent data */
id_prev = id;
id = fm10k_read_reg(hw, FM10K_TXQCTL(0));
} while ((id ^ id_prev) & FM10K_TXQCTL_ID_MASK);
/* drop non-ID bits and set VALID ID bit */
id &= FM10K_TXQCTL_ID_MASK;
id |= FM10K_STAT_VALID;
/** * fm10k_rebind_hw_stats_pf - Resets base for hardware statistics of PF * @hw: pointer to hardware structure * @stats: pointer to the stats structure to update * * This function resets the base for global and per queue hardware * statistics.
**/ staticvoid fm10k_rebind_hw_stats_pf(struct fm10k_hw *hw, struct fm10k_hw_stats *stats)
{ /* Unbind Global Statistics */
fm10k_unbind_hw_stats_32b(&stats->timeout);
fm10k_unbind_hw_stats_32b(&stats->ur);
fm10k_unbind_hw_stats_32b(&stats->ca);
fm10k_unbind_hw_stats_32b(&stats->um);
fm10k_unbind_hw_stats_32b(&stats->xec);
fm10k_unbind_hw_stats_32b(&stats->vlan_drop);
fm10k_unbind_hw_stats_32b(&stats->loopback_drop);
fm10k_unbind_hw_stats_32b(&stats->nodesc_drop);
/* Reinitialize bases for all stats */
fm10k_update_hw_stats_pf(hw, stats);
}
/** * fm10k_set_dma_mask_pf - Configures PhyAddrSpace to limit DMA to system * @hw: pointer to hardware structure * @dma_mask: 64 bit DMA mask required for platform * * This function sets the PHYADDR.PhyAddrSpace bits for the endpoint in order * to limit the access to memory beyond what is physically in the system.
**/ staticvoid fm10k_set_dma_mask_pf(struct fm10k_hw *hw, u64 dma_mask)
{ /* we need to write the upper 32 bits of DMA mask to PhyAddrSpace */
u32 phyaddr = (u32)(dma_mask >> 32);
fm10k_write_reg(hw, FM10K_PHYADDR, phyaddr);
}
/** * fm10k_get_fault_pf - Record a fault in one of the interface units * @hw: pointer to hardware structure * @type: pointer to fault type register offset * @fault: pointer to memory location to record the fault * * Record the fault register contents to the fault data structure and * clear the entry from the register. * * Returns ERR_PARAM if invalid register is specified or no error is present.
**/ static s32 fm10k_get_fault_pf(struct fm10k_hw *hw, int type, struct fm10k_fault *fault)
{
u32 func;
/* verify the fault register is in range and is aligned */ switch (type) { case FM10K_PCA_FAULT: case FM10K_THI_FAULT: case FM10K_FUM_FAULT: break; default: return FM10K_ERR_PARAM;
}
/* only service faults that are valid */
func = fm10k_read_reg(hw, type + FM10K_FAULT_FUNC); if (!(func & FM10K_FAULT_FUNC_VALID)) return FM10K_ERR_PARAM;
/* read remaining fields */
fault->address = fm10k_read_reg(hw, type + FM10K_FAULT_ADDR_HI);
fault->address <<= 32;
fault->address |= fm10k_read_reg(hw, type + FM10K_FAULT_ADDR_LO);
fault->specinfo = fm10k_read_reg(hw, type + FM10K_FAULT_SPECINFO);
/* clear valid bit to allow for next error */
fm10k_write_reg(hw, type + FM10K_FAULT_FUNC, FM10K_FAULT_FUNC_VALID);
/* Record which function triggered the error */ if (func & FM10K_FAULT_FUNC_PF)
fault->func = 0; else
fault->func = 1 + FIELD_GET(FM10K_FAULT_FUNC_VF_MASK, func);
/* record fault type */
fault->type = func & FM10K_FAULT_FUNC_TYPE_MASK;
return 0;
}
/** * fm10k_request_lport_map_pf - Request LPORT map from the switch API * @hw: pointer to hardware structure *
**/ static s32 fm10k_request_lport_map_pf(struct fm10k_hw *hw)
{ struct fm10k_mbx_info *mbx = &hw->mbx;
u32 msg[1];
/* issue request asking for LPORT map */
fm10k_tlv_msg_init(msg, FM10K_PF_MSG_ID_LPORT_MAP);
/** * fm10k_get_host_state_pf - Returns the state of the switch and mailbox * @hw: pointer to hardware structure * @switch_ready: pointer to boolean value that will record switch state * * This function will check the DMA_CTRL2 register and mailbox in order * to determine if the switch is ready for the PF to begin requesting * addresses and mapping traffic to the local interface.
**/ static s32 fm10k_get_host_state_pf(struct fm10k_hw *hw, bool *switch_ready)
{
u32 dma_ctrl2;
/* verify the switch is ready for interaction */
dma_ctrl2 = fm10k_read_reg(hw, FM10K_DMA_CTRL2); if (!(dma_ctrl2 & FM10K_DMA_CTRL2_SWITCH_READY)) return 0;
/* retrieve generic host state info */ return fm10k_get_host_state_generic(hw, switch_ready);
}
/* This structure defines the attibutes to be parsed below */ conststruct fm10k_tlv_attr fm10k_lport_map_msg_attr[] = {
FM10K_TLV_ATTR_LE_STRUCT(FM10K_PF_ATTR_ID_ERR, sizeof(struct fm10k_swapi_error)),
FM10K_TLV_ATTR_U32(FM10K_PF_ATTR_ID_LPORT_MAP),
FM10K_TLV_ATTR_LAST
};
/** * fm10k_msg_lport_map_pf - Message handler for lport_map message from SM * @hw: Pointer to hardware structure * @results: pointer array containing parsed data * @mbx: Pointer to mailbox information structure * * This handler configures the lport mapping based on the reply from the * switch API.
**/
s32 fm10k_msg_lport_map_pf(struct fm10k_hw *hw, u32 **results, struct fm10k_mbx_info __always_unused *mbx)
{
u16 glort, mask;
u32 dglort_map;
s32 err;
err = fm10k_tlv_attr_get_u32(results[FM10K_PF_ATTR_ID_LPORT_MAP],
&dglort_map); if (err) return err;
/* extract values out of the header */
glort = FM10K_MSG_HDR_FIELD_GET(dglort_map, LPORT_MAP_GLORT);
mask = FM10K_MSG_HDR_FIELD_GET(dglort_map, LPORT_MAP_MASK);
/* verify mask is set and none of the masked bits in glort are set */ if (!mask || (glort & ~mask)) return FM10K_ERR_PARAM;
/* verify the mask is contiguous, and that it is 1's followed by 0's */ if (((~(mask - 1) & mask) + mask) & FM10K_DGLORTMAP_NONE) return FM10K_ERR_PARAM;
/* record the glort, mask, and port count */
hw->mac.dglort_map = dglort_map;
/** * fm10k_msg_update_pvid_pf - Message handler for port VLAN message from SM * @hw: Pointer to hardware structure * @results: pointer array containing parsed data * @mbx: Pointer to mailbox information structure * * This handler configures the default VLAN for the PF
**/ static s32 fm10k_msg_update_pvid_pf(struct fm10k_hw *hw, u32 **results, struct fm10k_mbx_info __always_unused *mbx)
{
u16 glort, pvid;
u32 pvid_update;
s32 err;
err = fm10k_tlv_attr_get_u32(results[FM10K_PF_ATTR_ID_UPDATE_PVID],
&pvid_update); if (err) return err;
/* extract values from the pvid update */
glort = FM10K_MSG_HDR_FIELD_GET(pvid_update, UPDATE_PVID_GLORT);
pvid = FM10K_MSG_HDR_FIELD_GET(pvid_update, UPDATE_PVID_PVID);
/* if glort is not valid return error */ if (!fm10k_glort_valid_pf(hw, glort)) return FM10K_ERR_PARAM;
/* verify VLAN ID is valid */ if (pvid >= FM10K_VLAN_TABLE_VID_MAX) return FM10K_ERR_PARAM;
/* record the port VLAN ID value */
hw->mac.default_vid = pvid;
return 0;
}
/** * fm10k_record_global_table_data - Move global table data to swapi table info * @from: pointer to source table data structure * @to: pointer to destination table info structure * * This function is will copy table_data to the table_info contained in * the hw struct.
**/ staticvoid fm10k_record_global_table_data(struct fm10k_global_table_data *from, struct fm10k_swapi_table_info *to)
{ /* convert from le32 struct to CPU byte ordered values */
to->used = le32_to_cpu(from->used);
to->avail = le32_to_cpu(from->avail);
}
/** * fm10k_msg_err_pf - Message handler for error reply * @hw: Pointer to hardware structure * @results: pointer array containing parsed data * @mbx: Pointer to mailbox information structure * * This handler will capture the data for any error replies to previous * messages that the PF has sent.
**/
s32 fm10k_msg_err_pf(struct fm10k_hw *hw, u32 **results, struct fm10k_mbx_info __always_unused *mbx)
{ struct fm10k_swapi_error err_msg;
s32 err;
/* extract structure from message */
err = fm10k_tlv_attr_get_le_struct(results[FM10K_PF_ATTR_ID_ERR],
&err_msg, sizeof(err_msg)); if (err) return err;
/* record table status */
fm10k_record_global_table_data(&err_msg.mac, &hw->swapi.mac);
fm10k_record_global_table_data(&err_msg.nexthop, &hw->swapi.nexthop);
fm10k_record_global_table_data(&err_msg.ffu, &hw->swapi.ffu);
/* record SW API status value */
hw->swapi.status = le32_to_cpu(err_msg.status);
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