ice_common.o \
ice_nvm.o \
ice_switch.o \
- ice_sched.o
+ ice_sched.o \
+ ice_txrx.o
#include <linux/netdevice.h>
#include <linux/compiler.h>
#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
#include <linux/cpumask.h>
#include <linux/if_vlan.h>
+#include <linux/dma-mapping.h>
#include <linux/pci.h>
#include <linux/workqueue.h>
#include <linux/aer.h>
#define ICE_VSI_MAP_SCATTER 1
#define ICE_MAX_SCATTER_TXQS 16
#define ICE_MAX_SCATTER_RXQS 16
+#define ICE_Q_WAIT_RETRY_LIMIT 10
+#define ICE_Q_WAIT_MAX_RETRY (5 * ICE_Q_WAIT_RETRY_LIMIT)
#define ICE_RES_VALID_BIT 0x8000
#define ICE_RES_MISC_VEC_ID (ICE_RES_VALID_BIT - 1)
#define ICE_INVAL_Q_INDEX 0xffff
(((val) << ICE_AQ_VSI_UP_TABLE_UP##i##_S) & \
ICE_AQ_VSI_UP_TABLE_UP##i##_M)
+#define ICE_RX_DESC(R, i) (&(((union ice_32b_rx_flex_desc *)((R)->desc))[i]))
+
+#define ice_for_each_txq(vsi, i) \
+ for ((i) = 0; (i) < (vsi)->num_txq; (i)++)
+
+#define ice_for_each_rxq(vsi, i) \
+ for ((i) = 0; (i) < (vsi)->num_rxq; (i)++)
+
struct ice_tc_info {
u16 qoffset;
u16 qcount;
struct ice_ring **rx_rings; /* rx ring array */
struct ice_ring **tx_rings; /* tx ring array */
struct ice_q_vector **q_vectors; /* q_vector array */
+
+ irqreturn_t (*irq_handler)(int irq, void *data);
+
DECLARE_BITMAP(state, __ICE_STATE_NBITS);
int num_q_vectors;
int base_vector;
/* Interrupt thresholds */
u16 work_lmt;
+ u16 max_frame;
+ u16 rx_buf_len;
+
struct ice_aqc_vsi_props info; /* VSI properties */
+ bool irqs_ready;
+ bool current_isup; /* Sync 'link up' logging */
+
/* queue information */
u8 tx_mapping_mode; /* ICE_MAP_MODE_[CONTIG|SCATTER] */
u8 rx_mapping_mode; /* ICE_MAP_MODE_[CONTIG|SCATTER] */
struct napi_struct napi;
struct ice_ring_container rx;
struct ice_ring_container tx;
+ struct irq_affinity_notify affinity_notify;
u16 v_idx; /* index in the vsi->q_vector array. */
u8 num_ring_tx; /* total number of tx rings in vector */
u8 num_ring_rx; /* total number of rx rings in vector */
+ char name[ICE_INT_NAME_STR_LEN];
} ____cacheline_internodealigned_in_smp;
enum ice_pf_flags {
/**
* ice_irq_dynamic_ena - Enable default interrupt generation settings
* @hw: pointer to hw struct
+ * @vsi: pointer to vsi struct, can be NULL
+ * @q_vector: pointer to q_vector, can be NULL
*/
-static inline void ice_irq_dynamic_ena(struct ice_hw *hw)
+static inline void ice_irq_dynamic_ena(struct ice_hw *hw, struct ice_vsi *vsi,
+ struct ice_q_vector *q_vector)
{
- u32 vector = ((struct ice_pf *)hw->back)->oicr_idx;
+ u32 vector = (vsi && q_vector) ? vsi->base_vector + q_vector->v_idx :
+ ((struct ice_pf *)hw->back)->oicr_idx;
int itr = ICE_ITR_NONE;
u32 val;
*/
val = GLINT_DYN_CTL_INTENA_M | GLINT_DYN_CTL_CLEARPBA_M |
(itr << GLINT_DYN_CTL_ITR_INDX_S);
-
+ if (vsi)
+ if (test_bit(__ICE_DOWN, vsi->state))
+ return;
wr32(hw, GLINT_DYN_CTL(vector), val);
}
+
#endif /* _ICE_H_ */
__le32 addr_low;
};
+/* Add TX LAN Queues (indirect 0x0C30) */
+struct ice_aqc_add_txqs {
+ u8 num_qgrps;
+ u8 reserved[3];
+ __le32 reserved1;
+ __le32 addr_high;
+ __le32 addr_low;
+};
+
+/* This is the descriptor of each queue entry for the Add TX LAN Queues
+ * command (0x0C30). Only used within struct ice_aqc_add_tx_qgrp.
+ */
+struct ice_aqc_add_txqs_perq {
+ __le16 txq_id;
+ u8 rsvd[2];
+ __le32 q_teid;
+ u8 txq_ctx[22];
+ u8 rsvd2[2];
+ struct ice_aqc_txsched_elem info;
+};
+
+/* The format of the command buffer for Add TX LAN Queues (0x0C30)
+ * is an array of the following structs. Please note that the length of
+ * each struct ice_aqc_add_tx_qgrp is variable due
+ * to the variable number of queues in each group!
+ */
+struct ice_aqc_add_tx_qgrp {
+ __le32 parent_teid;
+ u8 num_txqs;
+ u8 rsvd[3];
+ struct ice_aqc_add_txqs_perq txqs[1];
+};
+
+/* Disable TX LAN Queues (indirect 0x0C31) */
+struct ice_aqc_dis_txqs {
+ u8 cmd_type;
+#define ICE_AQC_Q_DIS_CMD_S 0
+#define ICE_AQC_Q_DIS_CMD_M (0x3 << ICE_AQC_Q_DIS_CMD_S)
+#define ICE_AQC_Q_DIS_CMD_NO_FUNC_RESET (0 << ICE_AQC_Q_DIS_CMD_S)
+#define ICE_AQC_Q_DIS_CMD_VM_RESET BIT(ICE_AQC_Q_DIS_CMD_S)
+#define ICE_AQC_Q_DIS_CMD_VF_RESET (2 << ICE_AQC_Q_DIS_CMD_S)
+#define ICE_AQC_Q_DIS_CMD_PF_RESET (3 << ICE_AQC_Q_DIS_CMD_S)
+#define ICE_AQC_Q_DIS_CMD_SUBSEQ_CALL BIT(2)
+#define ICE_AQC_Q_DIS_CMD_FLUSH_PIPE BIT(3)
+ u8 num_entries;
+ __le16 vmvf_and_timeout;
+#define ICE_AQC_Q_DIS_VMVF_NUM_S 0
+#define ICE_AQC_Q_DIS_VMVF_NUM_M (0x3FF << ICE_AQC_Q_DIS_VMVF_NUM_S)
+#define ICE_AQC_Q_DIS_TIMEOUT_S 10
+#define ICE_AQC_Q_DIS_TIMEOUT_M (0x3F << ICE_AQC_Q_DIS_TIMEOUT_S)
+ __le32 blocked_cgds;
+ __le32 addr_high;
+ __le32 addr_low;
+};
+
+/* The buffer for Disable TX LAN Queues (indirect 0x0C31)
+ * contains the following structures, arrayed one after the
+ * other.
+ * Note: Since the q_id is 16 bits wide, if the
+ * number of queues is even, then 2 bytes of alignment MUST be
+ * added before the start of the next group, to allow correct
+ * alignment of the parent_teid field.
+ */
+struct ice_aqc_dis_txq_item {
+ __le32 parent_teid;
+ u8 num_qs;
+ u8 rsvd;
+ /* The length of the q_id array varies according to num_qs */
+ __le16 q_id[1];
+ /* This only applies from F8 onward */
+#define ICE_AQC_Q_DIS_BUF_ELEM_TYPE_S 15
+#define ICE_AQC_Q_DIS_BUF_ELEM_TYPE_LAN_Q \
+ (0 << ICE_AQC_Q_DIS_BUF_ELEM_TYPE_S)
+#define ICE_AQC_Q_DIS_BUF_ELEM_TYPE_RDMA_QSET \
+ (1 << ICE_AQC_Q_DIS_BUF_ELEM_TYPE_S)
+};
+
+struct ice_aqc_dis_txq {
+ struct ice_aqc_dis_txq_item qgrps[1];
+};
+
/**
* struct ice_aq_desc - Admin Queue (AQ) descriptor
* @flags: ICE_AQ_FLAG_* flags
struct ice_aqc_query_txsched_res query_sched_res;
struct ice_aqc_add_move_delete_elem add_move_delete_elem;
struct ice_aqc_nvm nvm;
+ struct ice_aqc_add_txqs add_txqs;
+ struct ice_aqc_dis_txqs dis_txqs;
struct ice_aqc_add_get_update_free_vsi vsi_cmd;
struct ice_aqc_alloc_free_res_cmd sw_res_ctrl;
struct ice_aqc_get_link_status get_link_status;
/* NVM commands */
ice_aqc_opc_nvm_read = 0x0701,
+ /* TX queue handling commands/events */
+ ice_aqc_opc_add_txqs = 0x0C30,
+ ice_aqc_opc_dis_txqs = 0x0C31,
};
#endif /* _ICE_ADMINQ_CMD_H_ */
#define ICE_PF_RESET_WAIT_COUNT 200
+#define ICE_NIC_FLX_ENTRY(hw, mdid, idx) \
+ wr32((hw), GLFLXP_RXDID_FLX_WRD_##idx(ICE_RXDID_FLEX_NIC), \
+ ((ICE_RX_OPC_MDID << \
+ GLFLXP_RXDID_FLX_WRD_##idx##_RXDID_OPCODE_S) & \
+ GLFLXP_RXDID_FLX_WRD_##idx##_RXDID_OPCODE_M) | \
+ (((mdid) << GLFLXP_RXDID_FLX_WRD_##idx##_PROT_MDID_S) & \
+ GLFLXP_RXDID_FLX_WRD_##idx##_PROT_MDID_M))
+
+#define ICE_NIC_FLX_FLG_ENTRY(hw, flg_0, flg_1, flg_2, flg_3, idx) \
+ wr32((hw), GLFLXP_RXDID_FLAGS(ICE_RXDID_FLEX_NIC, idx), \
+ (((flg_0) << GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_S) & \
+ GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_M) | \
+ (((flg_1) << GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_1_S) & \
+ GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_1_M) | \
+ (((flg_2) << GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_2_S) & \
+ GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_2_M) | \
+ (((flg_3) << GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_3_S) & \
+ GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_3_M))
+
/**
* ice_set_mac_type - Sets MAC type
* @hw: pointer to the HW structure
}
/**
+ * ice_init_flex_parser - initialize rx flex parser
+ * @hw: pointer to the hardware structure
+ *
+ * Function to initialize flex descriptors
+ */
+static void ice_init_flex_parser(struct ice_hw *hw)
+{
+ u8 idx = 0;
+
+ ICE_NIC_FLX_ENTRY(hw, ICE_RX_MDID_HASH_LOW, 0);
+ ICE_NIC_FLX_ENTRY(hw, ICE_RX_MDID_HASH_HIGH, 1);
+ ICE_NIC_FLX_ENTRY(hw, ICE_RX_MDID_FLOW_ID_LOWER, 2);
+ ICE_NIC_FLX_ENTRY(hw, ICE_RX_MDID_FLOW_ID_HIGH, 3);
+ ICE_NIC_FLX_FLG_ENTRY(hw, ICE_RXFLG_PKT_FRG, ICE_RXFLG_UDP_GRE,
+ ICE_RXFLG_PKT_DSI, ICE_RXFLG_FIN, idx++);
+ ICE_NIC_FLX_FLG_ENTRY(hw, ICE_RXFLG_SYN, ICE_RXFLG_RST,
+ ICE_RXFLG_PKT_DSI, ICE_RXFLG_PKT_DSI, idx++);
+ ICE_NIC_FLX_FLG_ENTRY(hw, ICE_RXFLG_PKT_DSI, ICE_RXFLG_PKT_DSI,
+ ICE_RXFLG_EVLAN_x8100, ICE_RXFLG_EVLAN_x9100,
+ idx++);
+ ICE_NIC_FLX_FLG_ENTRY(hw, ICE_RXFLG_VLAN_x8100, ICE_RXFLG_TNL_VLAN,
+ ICE_RXFLG_TNL_MAC, ICE_RXFLG_TNL0, idx++);
+ ICE_NIC_FLX_FLG_ENTRY(hw, ICE_RXFLG_TNL1, ICE_RXFLG_TNL2,
+ ICE_RXFLG_PKT_DSI, ICE_RXFLG_PKT_DSI, idx);
+}
+
+/**
* ice_init_fltr_mgmt_struct - initializes filter management list and locks
* @hw: pointer to the hw struct
*/
if (status)
goto err_unroll_fltr_mgmt_struct;
+ ice_init_flex_parser(hw);
+
return 0;
err_unroll_fltr_mgmt_struct:
}
/**
+ * ice_copy_rxq_ctx_to_hw
+ * @hw: pointer to the hardware structure
+ * @ice_rxq_ctx: pointer to the rxq context
+ * @rxq_index: the index of the rx queue
+ *
+ * Copies rxq context from dense structure to hw register space
+ */
+static enum ice_status
+ice_copy_rxq_ctx_to_hw(struct ice_hw *hw, u8 *ice_rxq_ctx, u32 rxq_index)
+{
+ u8 i;
+
+ if (!ice_rxq_ctx)
+ return ICE_ERR_BAD_PTR;
+
+ if (rxq_index > QRX_CTRL_MAX_INDEX)
+ return ICE_ERR_PARAM;
+
+ /* Copy each dword separately to hw */
+ for (i = 0; i < ICE_RXQ_CTX_SIZE_DWORDS; i++) {
+ wr32(hw, QRX_CONTEXT(i, rxq_index),
+ *((u32 *)(ice_rxq_ctx + (i * sizeof(u32)))));
+
+ ice_debug(hw, ICE_DBG_QCTX, "qrxdata[%d]: %08X\n", i,
+ *((u32 *)(ice_rxq_ctx + (i * sizeof(u32)))));
+ }
+
+ return 0;
+}
+
+/* LAN Rx Queue Context */
+static const struct ice_ctx_ele ice_rlan_ctx_info[] = {
+ /* Field Width LSB */
+ ICE_CTX_STORE(ice_rlan_ctx, head, 13, 0),
+ ICE_CTX_STORE(ice_rlan_ctx, cpuid, 8, 13),
+ ICE_CTX_STORE(ice_rlan_ctx, base, 57, 32),
+ ICE_CTX_STORE(ice_rlan_ctx, qlen, 13, 89),
+ ICE_CTX_STORE(ice_rlan_ctx, dbuf, 7, 102),
+ ICE_CTX_STORE(ice_rlan_ctx, hbuf, 5, 109),
+ ICE_CTX_STORE(ice_rlan_ctx, dtype, 2, 114),
+ ICE_CTX_STORE(ice_rlan_ctx, dsize, 1, 116),
+ ICE_CTX_STORE(ice_rlan_ctx, crcstrip, 1, 117),
+ ICE_CTX_STORE(ice_rlan_ctx, l2tsel, 1, 119),
+ ICE_CTX_STORE(ice_rlan_ctx, hsplit_0, 4, 120),
+ ICE_CTX_STORE(ice_rlan_ctx, hsplit_1, 2, 124),
+ ICE_CTX_STORE(ice_rlan_ctx, showiv, 1, 127),
+ ICE_CTX_STORE(ice_rlan_ctx, rxmax, 14, 174),
+ ICE_CTX_STORE(ice_rlan_ctx, tphrdesc_ena, 1, 193),
+ ICE_CTX_STORE(ice_rlan_ctx, tphwdesc_ena, 1, 194),
+ ICE_CTX_STORE(ice_rlan_ctx, tphdata_ena, 1, 195),
+ ICE_CTX_STORE(ice_rlan_ctx, tphhead_ena, 1, 196),
+ ICE_CTX_STORE(ice_rlan_ctx, lrxqthresh, 3, 198),
+ { 0 }
+};
+
+/**
+ * ice_write_rxq_ctx
+ * @hw: pointer to the hardware structure
+ * @rlan_ctx: pointer to the rxq context
+ * @rxq_index: the index of the rx queue
+ *
+ * Converts rxq context from sparse to dense structure and then writes
+ * it to hw register space
+ */
+enum ice_status
+ice_write_rxq_ctx(struct ice_hw *hw, struct ice_rlan_ctx *rlan_ctx,
+ u32 rxq_index)
+{
+ u8 ctx_buf[ICE_RXQ_CTX_SZ] = { 0 };
+
+ ice_set_ctx((u8 *)rlan_ctx, ctx_buf, ice_rlan_ctx_info);
+ return ice_copy_rxq_ctx_to_hw(hw, ctx_buf, rxq_index);
+}
+
+/* LAN Tx Queue Context */
+const struct ice_ctx_ele ice_tlan_ctx_info[] = {
+ /* Field Width LSB */
+ ICE_CTX_STORE(ice_tlan_ctx, base, 57, 0),
+ ICE_CTX_STORE(ice_tlan_ctx, port_num, 3, 57),
+ ICE_CTX_STORE(ice_tlan_ctx, cgd_num, 5, 60),
+ ICE_CTX_STORE(ice_tlan_ctx, pf_num, 3, 65),
+ ICE_CTX_STORE(ice_tlan_ctx, vmvf_num, 10, 68),
+ ICE_CTX_STORE(ice_tlan_ctx, vmvf_type, 2, 78),
+ ICE_CTX_STORE(ice_tlan_ctx, src_vsi, 10, 80),
+ ICE_CTX_STORE(ice_tlan_ctx, tsyn_ena, 1, 90),
+ ICE_CTX_STORE(ice_tlan_ctx, alt_vlan, 1, 92),
+ ICE_CTX_STORE(ice_tlan_ctx, cpuid, 8, 93),
+ ICE_CTX_STORE(ice_tlan_ctx, wb_mode, 1, 101),
+ ICE_CTX_STORE(ice_tlan_ctx, tphrd_desc, 1, 102),
+ ICE_CTX_STORE(ice_tlan_ctx, tphrd, 1, 103),
+ ICE_CTX_STORE(ice_tlan_ctx, tphwr_desc, 1, 104),
+ ICE_CTX_STORE(ice_tlan_ctx, cmpq_id, 9, 105),
+ ICE_CTX_STORE(ice_tlan_ctx, qnum_in_func, 14, 114),
+ ICE_CTX_STORE(ice_tlan_ctx, itr_notification_mode, 1, 128),
+ ICE_CTX_STORE(ice_tlan_ctx, adjust_prof_id, 6, 129),
+ ICE_CTX_STORE(ice_tlan_ctx, qlen, 13, 135),
+ ICE_CTX_STORE(ice_tlan_ctx, quanta_prof_idx, 4, 148),
+ ICE_CTX_STORE(ice_tlan_ctx, tso_ena, 1, 152),
+ ICE_CTX_STORE(ice_tlan_ctx, tso_qnum, 11, 153),
+ ICE_CTX_STORE(ice_tlan_ctx, legacy_int, 1, 164),
+ ICE_CTX_STORE(ice_tlan_ctx, drop_ena, 1, 165),
+ ICE_CTX_STORE(ice_tlan_ctx, cache_prof_idx, 2, 166),
+ ICE_CTX_STORE(ice_tlan_ctx, pkt_shaper_prof_idx, 3, 168),
+ ICE_CTX_STORE(ice_tlan_ctx, int_q_state, 110, 171),
+ { 0 }
+};
+
+/**
* ice_debug_cq
* @hw: pointer to the hardware structure
* @mask: debug mask
if (ice_check_sq_alive(hw, &hw->adminq))
ice_aq_clear_pxe_mode(hw);
}
+
+/**
+ * ice_aq_add_lan_txq
+ * @hw: pointer to the hardware structure
+ * @num_qgrps: Number of added queue groups
+ * @qg_list: list of queue groups to be added
+ * @buf_size: size of buffer for indirect command
+ * @cd: pointer to command details structure or NULL
+ *
+ * Add Tx LAN queue (0x0C30)
+ *
+ * NOTE:
+ * Prior to calling add Tx LAN queue:
+ * Initialize the following as part of the Tx queue context:
+ * Completion queue ID if the queue uses Completion queue, Quanta profile,
+ * Cache profile and Packet shaper profile.
+ *
+ * After add Tx LAN queue AQ command is completed:
+ * Interrupts should be associated with specific queues,
+ * Association of Tx queue to Doorbell queue is not part of Add LAN Tx queue
+ * flow.
+ */
+static enum ice_status
+ice_aq_add_lan_txq(struct ice_hw *hw, u8 num_qgrps,
+ struct ice_aqc_add_tx_qgrp *qg_list, u16 buf_size,
+ struct ice_sq_cd *cd)
+{
+ u16 i, sum_header_size, sum_q_size = 0;
+ struct ice_aqc_add_tx_qgrp *list;
+ struct ice_aqc_add_txqs *cmd;
+ struct ice_aq_desc desc;
+
+ cmd = &desc.params.add_txqs;
+
+ ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_add_txqs);
+
+ if (!qg_list)
+ return ICE_ERR_PARAM;
+
+ if (num_qgrps > ICE_LAN_TXQ_MAX_QGRPS)
+ return ICE_ERR_PARAM;
+
+ sum_header_size = num_qgrps *
+ (sizeof(*qg_list) - sizeof(*qg_list->txqs));
+
+ list = qg_list;
+ for (i = 0; i < num_qgrps; i++) {
+ struct ice_aqc_add_txqs_perq *q = list->txqs;
+
+ sum_q_size += list->num_txqs * sizeof(*q);
+ list = (struct ice_aqc_add_tx_qgrp *)(q + list->num_txqs);
+ }
+
+ if (buf_size != (sum_header_size + sum_q_size))
+ return ICE_ERR_PARAM;
+
+ desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
+
+ cmd->num_qgrps = num_qgrps;
+
+ return ice_aq_send_cmd(hw, &desc, qg_list, buf_size, cd);
+}
+
+/**
+ * ice_aq_dis_lan_txq
+ * @hw: pointer to the hardware structure
+ * @num_qgrps: number of groups in the list
+ * @qg_list: the list of groups to disable
+ * @buf_size: the total size of the qg_list buffer in bytes
+ * @cd: pointer to command details structure or NULL
+ *
+ * Disable LAN Tx queue (0x0C31)
+ */
+static enum ice_status
+ice_aq_dis_lan_txq(struct ice_hw *hw, u8 num_qgrps,
+ struct ice_aqc_dis_txq_item *qg_list, u16 buf_size,
+ struct ice_sq_cd *cd)
+{
+ struct ice_aqc_dis_txqs *cmd;
+ struct ice_aq_desc desc;
+ u16 i, sz = 0;
+
+ cmd = &desc.params.dis_txqs;
+ ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_dis_txqs);
+
+ if (!qg_list)
+ return ICE_ERR_PARAM;
+
+ if (num_qgrps > ICE_LAN_TXQ_MAX_QGRPS)
+ return ICE_ERR_PARAM;
+ desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
+ cmd->num_entries = num_qgrps;
+
+ for (i = 0; i < num_qgrps; ++i) {
+ /* Calculate the size taken up by the queue IDs in this group */
+ sz += qg_list[i].num_qs * sizeof(qg_list[i].q_id);
+
+ /* Add the size of the group header */
+ sz += sizeof(qg_list[i]) - sizeof(qg_list[i].q_id);
+
+ /* If the num of queues is even, add 2 bytes of padding */
+ if ((qg_list[i].num_qs % 2) == 0)
+ sz += 2;
+ }
+
+ if (buf_size != sz)
+ return ICE_ERR_PARAM;
+
+ return ice_aq_send_cmd(hw, &desc, qg_list, buf_size, cd);
+}
+
+/* End of FW Admin Queue command wrappers */
+
+/**
+ * ice_write_byte - write a byte to a packed context structure
+ * @src_ctx: the context structure to read from
+ * @dest_ctx: the context to be written to
+ * @ce_info: a description of the struct to be filled
+ */
+static void ice_write_byte(u8 *src_ctx, u8 *dest_ctx,
+ const struct ice_ctx_ele *ce_info)
+{
+ u8 src_byte, dest_byte, mask;
+ u8 *from, *dest;
+ u16 shift_width;
+
+ /* copy from the next struct field */
+ from = src_ctx + ce_info->offset;
+
+ /* prepare the bits and mask */
+ shift_width = ce_info->lsb % 8;
+ mask = (u8)(BIT(ce_info->width) - 1);
+
+ src_byte = *from;
+ src_byte &= mask;
+
+ /* shift to correct alignment */
+ mask <<= shift_width;
+ src_byte <<= shift_width;
+
+ /* get the current bits from the target bit string */
+ dest = dest_ctx + (ce_info->lsb / 8);
+
+ memcpy(&dest_byte, dest, sizeof(dest_byte));
+
+ dest_byte &= ~mask; /* get the bits not changing */
+ dest_byte |= src_byte; /* add in the new bits */
+
+ /* put it all back */
+ memcpy(dest, &dest_byte, sizeof(dest_byte));
+}
+
+/**
+ * ice_write_word - write a word to a packed context structure
+ * @src_ctx: the context structure to read from
+ * @dest_ctx: the context to be written to
+ * @ce_info: a description of the struct to be filled
+ */
+static void ice_write_word(u8 *src_ctx, u8 *dest_ctx,
+ const struct ice_ctx_ele *ce_info)
+{
+ u16 src_word, mask;
+ __le16 dest_word;
+ u8 *from, *dest;
+ u16 shift_width;
+
+ /* copy from the next struct field */
+ from = src_ctx + ce_info->offset;
+
+ /* prepare the bits and mask */
+ shift_width = ce_info->lsb % 8;
+ mask = BIT(ce_info->width) - 1;
+
+ /* don't swizzle the bits until after the mask because the mask bits
+ * will be in a different bit position on big endian machines
+ */
+ src_word = *(u16 *)from;
+ src_word &= mask;
+
+ /* shift to correct alignment */
+ mask <<= shift_width;
+ src_word <<= shift_width;
+
+ /* get the current bits from the target bit string */
+ dest = dest_ctx + (ce_info->lsb / 8);
+
+ memcpy(&dest_word, dest, sizeof(dest_word));
+
+ dest_word &= ~(cpu_to_le16(mask)); /* get the bits not changing */
+ dest_word |= cpu_to_le16(src_word); /* add in the new bits */
+
+ /* put it all back */
+ memcpy(dest, &dest_word, sizeof(dest_word));
+}
+
+/**
+ * ice_write_dword - write a dword to a packed context structure
+ * @src_ctx: the context structure to read from
+ * @dest_ctx: the context to be written to
+ * @ce_info: a description of the struct to be filled
+ */
+static void ice_write_dword(u8 *src_ctx, u8 *dest_ctx,
+ const struct ice_ctx_ele *ce_info)
+{
+ u32 src_dword, mask;
+ __le32 dest_dword;
+ u8 *from, *dest;
+ u16 shift_width;
+
+ /* copy from the next struct field */
+ from = src_ctx + ce_info->offset;
+
+ /* prepare the bits and mask */
+ shift_width = ce_info->lsb % 8;
+
+ /* if the field width is exactly 32 on an x86 machine, then the shift
+ * operation will not work because the SHL instructions count is masked
+ * to 5 bits so the shift will do nothing
+ */
+ if (ce_info->width < 32)
+ mask = BIT(ce_info->width) - 1;
+ else
+ mask = (u32)~0;
+
+ /* don't swizzle the bits until after the mask because the mask bits
+ * will be in a different bit position on big endian machines
+ */
+ src_dword = *(u32 *)from;
+ src_dword &= mask;
+
+ /* shift to correct alignment */
+ mask <<= shift_width;
+ src_dword <<= shift_width;
+
+ /* get the current bits from the target bit string */
+ dest = dest_ctx + (ce_info->lsb / 8);
+
+ memcpy(&dest_dword, dest, sizeof(dest_dword));
+
+ dest_dword &= ~(cpu_to_le32(mask)); /* get the bits not changing */
+ dest_dword |= cpu_to_le32(src_dword); /* add in the new bits */
+
+ /* put it all back */
+ memcpy(dest, &dest_dword, sizeof(dest_dword));
+}
+
+/**
+ * ice_write_qword - write a qword to a packed context structure
+ * @src_ctx: the context structure to read from
+ * @dest_ctx: the context to be written to
+ * @ce_info: a description of the struct to be filled
+ */
+static void ice_write_qword(u8 *src_ctx, u8 *dest_ctx,
+ const struct ice_ctx_ele *ce_info)
+{
+ u64 src_qword, mask;
+ __le64 dest_qword;
+ u8 *from, *dest;
+ u16 shift_width;
+
+ /* copy from the next struct field */
+ from = src_ctx + ce_info->offset;
+
+ /* prepare the bits and mask */
+ shift_width = ce_info->lsb % 8;
+
+ /* if the field width is exactly 64 on an x86 machine, then the shift
+ * operation will not work because the SHL instructions count is masked
+ * to 6 bits so the shift will do nothing
+ */
+ if (ce_info->width < 64)
+ mask = BIT_ULL(ce_info->width) - 1;
+ else
+ mask = (u64)~0;
+
+ /* don't swizzle the bits until after the mask because the mask bits
+ * will be in a different bit position on big endian machines
+ */
+ src_qword = *(u64 *)from;
+ src_qword &= mask;
+
+ /* shift to correct alignment */
+ mask <<= shift_width;
+ src_qword <<= shift_width;
+
+ /* get the current bits from the target bit string */
+ dest = dest_ctx + (ce_info->lsb / 8);
+
+ memcpy(&dest_qword, dest, sizeof(dest_qword));
+
+ dest_qword &= ~(cpu_to_le64(mask)); /* get the bits not changing */
+ dest_qword |= cpu_to_le64(src_qword); /* add in the new bits */
+
+ /* put it all back */
+ memcpy(dest, &dest_qword, sizeof(dest_qword));
+}
+
+/**
+ * ice_set_ctx - set context bits in packed structure
+ * @src_ctx: pointer to a generic non-packed context structure
+ * @dest_ctx: pointer to memory for the packed structure
+ * @ce_info: a description of the structure to be transformed
+ */
+enum ice_status
+ice_set_ctx(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info)
+{
+ int f;
+
+ for (f = 0; ce_info[f].width; f++) {
+ /* We have to deal with each element of the FW response
+ * using the correct size so that we are correct regardless
+ * of the endianness of the machine.
+ */
+ switch (ce_info[f].size_of) {
+ case sizeof(u8):
+ ice_write_byte(src_ctx, dest_ctx, &ce_info[f]);
+ break;
+ case sizeof(u16):
+ ice_write_word(src_ctx, dest_ctx, &ce_info[f]);
+ break;
+ case sizeof(u32):
+ ice_write_dword(src_ctx, dest_ctx, &ce_info[f]);
+ break;
+ case sizeof(u64):
+ ice_write_qword(src_ctx, dest_ctx, &ce_info[f]);
+ break;
+ default:
+ return ICE_ERR_INVAL_SIZE;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * ice_ena_vsi_txq
+ * @pi: port information structure
+ * @vsi_id: VSI id
+ * @tc: tc number
+ * @num_qgrps: Number of added queue groups
+ * @buf: list of queue groups to be added
+ * @buf_size: size of buffer for indirect command
+ * @cd: pointer to command details structure or NULL
+ *
+ * This function adds one lan q
+ */
+enum ice_status
+ice_ena_vsi_txq(struct ice_port_info *pi, u16 vsi_id, u8 tc, u8 num_qgrps,
+ struct ice_aqc_add_tx_qgrp *buf, u16 buf_size,
+ struct ice_sq_cd *cd)
+{
+ struct ice_aqc_txsched_elem_data node = { 0 };
+ struct ice_sched_node *parent;
+ enum ice_status status;
+ struct ice_hw *hw;
+
+ if (!pi || pi->port_state != ICE_SCHED_PORT_STATE_READY)
+ return ICE_ERR_CFG;
+
+ if (num_qgrps > 1 || buf->num_txqs > 1)
+ return ICE_ERR_MAX_LIMIT;
+
+ hw = pi->hw;
+
+ mutex_lock(&pi->sched_lock);
+
+ /* find a parent node */
+ parent = ice_sched_get_free_qparent(pi, vsi_id, tc,
+ ICE_SCHED_NODE_OWNER_LAN);
+ if (!parent) {
+ status = ICE_ERR_PARAM;
+ goto ena_txq_exit;
+ }
+ buf->parent_teid = parent->info.node_teid;
+ node.parent_teid = parent->info.node_teid;
+ /* Mark that the values in the "generic" section as valid. The default
+ * value in the "generic" section is zero. This means that :
+ * - Scheduling mode is Bytes Per Second (BPS), indicated by Bit 0.
+ * - 0 priority among siblings, indicated by Bit 1-3.
+ * - WFQ, indicated by Bit 4.
+ * - 0 Adjustment value is used in PSM credit update flow, indicated by
+ * Bit 5-6.
+ * - Bit 7 is reserved.
+ * Without setting the generic section as valid in valid_sections, the
+ * Admin Q command will fail with error code ICE_AQ_RC_EINVAL.
+ */
+ buf->txqs[0].info.valid_sections = ICE_AQC_ELEM_VALID_GENERIC;
+
+ /* add the lan q */
+ status = ice_aq_add_lan_txq(hw, num_qgrps, buf, buf_size, cd);
+ if (status)
+ goto ena_txq_exit;
+
+ node.node_teid = buf->txqs[0].q_teid;
+ node.data.elem_type = ICE_AQC_ELEM_TYPE_LEAF;
+
+ /* add a leaf node into schduler tree q layer */
+ status = ice_sched_add_node(pi, hw->num_tx_sched_layers - 1, &node);
+
+ena_txq_exit:
+ mutex_unlock(&pi->sched_lock);
+ return status;
+}
+
+/**
+ * ice_dis_vsi_txq
+ * @pi: port information structure
+ * @num_queues: number of queues
+ * @q_ids: pointer to the q_id array
+ * @q_teids: pointer to queue node teids
+ * @cd: pointer to command details structure or NULL
+ *
+ * This function removes queues and their corresponding nodes in SW DB
+ */
+enum ice_status
+ice_dis_vsi_txq(struct ice_port_info *pi, u8 num_queues, u16 *q_ids,
+ u32 *q_teids, struct ice_sq_cd *cd)
+{
+ enum ice_status status = ICE_ERR_DOES_NOT_EXIST;
+ struct ice_aqc_dis_txq_item qg_list;
+ u16 i;
+
+ if (!pi || pi->port_state != ICE_SCHED_PORT_STATE_READY)
+ return ICE_ERR_CFG;
+
+ mutex_lock(&pi->sched_lock);
+
+ for (i = 0; i < num_queues; i++) {
+ struct ice_sched_node *node;
+
+ node = ice_sched_find_node_by_teid(pi->root, q_teids[i]);
+ if (!node)
+ continue;
+ qg_list.parent_teid = node->info.parent_teid;
+ qg_list.num_qs = 1;
+ qg_list.q_id[0] = cpu_to_le16(q_ids[i]);
+ status = ice_aq_dis_lan_txq(pi->hw, 1, &qg_list,
+ sizeof(qg_list), cd);
+
+ if (status)
+ break;
+ ice_free_sched_node(pi, node);
+ }
+ mutex_unlock(&pi->sched_lock);
+ return status;
+}
struct ice_sq_cd *cd);
void ice_clear_pxe_mode(struct ice_hw *hw);
enum ice_status ice_get_caps(struct ice_hw *hw);
+enum ice_status
+ice_write_rxq_ctx(struct ice_hw *hw, struct ice_rlan_ctx *rlan_ctx,
+ u32 rxq_index);
bool ice_check_sq_alive(struct ice_hw *hw, struct ice_ctl_q_info *cq);
enum ice_status ice_aq_q_shutdown(struct ice_hw *hw, bool unloading);
void ice_fill_dflt_direct_cmd_desc(struct ice_aq_desc *desc, u16 opcode);
+extern const struct ice_ctx_ele ice_tlan_ctx_info[];
+enum ice_status
+ice_set_ctx(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info);
enum ice_status
ice_aq_send_cmd(struct ice_hw *hw, struct ice_aq_desc *desc,
void *buf, u16 buf_size, struct ice_sq_cd *cd);
enum ice_status
ice_aq_get_link_info(struct ice_port_info *pi, bool ena_lse,
struct ice_link_status *link, struct ice_sq_cd *cd);
+enum ice_status
+ice_dis_vsi_txq(struct ice_port_info *pi, u8 num_queues, u16 *q_ids,
+ u32 *q_teids, struct ice_sq_cd *cmd_details);
+enum ice_status
+ice_ena_vsi_txq(struct ice_port_info *pi, u16 vsi_id, u8 tc, u8 num_qgrps,
+ struct ice_aqc_add_tx_qgrp *buf, u16 buf_size,
+ struct ice_sq_cd *cd);
#endif /* _ICE_COMMON_H_ */
#ifndef _ICE_HW_AUTOGEN_H_
#define _ICE_HW_AUTOGEN_H_
+#define QTX_COMM_DBELL(_DBQM) (0x002C0000 + ((_DBQM) * 4))
#define PF_FW_ARQBAH 0x00080180
#define PF_FW_ARQBAL 0x00080080
#define PF_FW_ARQH 0x00080380
#define PF_FW_ATQLEN_ATQENABLE_S 31
#define PF_FW_ATQLEN_ATQENABLE_M BIT(PF_FW_ATQLEN_ATQENABLE_S)
#define PF_FW_ATQT 0x00080400
+
+#define GLFLXP_RXDID_FLAGS(_i, _j) (0x0045D000 + ((_i) * 4 + (_j) * 256))
+#define GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_S 0
+#define GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_M ICE_M(0x3F, GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_S)
+#define GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_1_S 8
+#define GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_1_M ICE_M(0x3F, GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_1_S)
+#define GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_2_S 16
+#define GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_2_M ICE_M(0x3F, GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_2_S)
+#define GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_3_S 24
+#define GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_3_M ICE_M(0x3F, GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_3_S)
+#define GLFLXP_RXDID_FLX_WRD_0(_i) (0x0045c800 + ((_i) * 4))
+#define GLFLXP_RXDID_FLX_WRD_0_PROT_MDID_S 0
+#define GLFLXP_RXDID_FLX_WRD_0_PROT_MDID_M ICE_M(0xFF, GLFLXP_RXDID_FLX_WRD_0_PROT_MDID_S)
+#define GLFLXP_RXDID_FLX_WRD_0_RXDID_OPCODE_S 30
+#define GLFLXP_RXDID_FLX_WRD_0_RXDID_OPCODE_M ICE_M(0x3, GLFLXP_RXDID_FLX_WRD_0_RXDID_OPCODE_S)
+#define GLFLXP_RXDID_FLX_WRD_1(_i) (0x0045c900 + ((_i) * 4))
+#define GLFLXP_RXDID_FLX_WRD_1_PROT_MDID_S 0
+#define GLFLXP_RXDID_FLX_WRD_1_PROT_MDID_M ICE_M(0xFF, GLFLXP_RXDID_FLX_WRD_1_PROT_MDID_S)
+#define GLFLXP_RXDID_FLX_WRD_1_RXDID_OPCODE_S 30
+#define GLFLXP_RXDID_FLX_WRD_1_RXDID_OPCODE_M ICE_M(0x3, GLFLXP_RXDID_FLX_WRD_1_RXDID_OPCODE_S)
+#define GLFLXP_RXDID_FLX_WRD_2(_i) (0x0045ca00 + ((_i) * 4))
+#define GLFLXP_RXDID_FLX_WRD_2_PROT_MDID_S 0
+#define GLFLXP_RXDID_FLX_WRD_2_PROT_MDID_M ICE_M(0xFF, GLFLXP_RXDID_FLX_WRD_2_PROT_MDID_S)
+#define GLFLXP_RXDID_FLX_WRD_2_RXDID_OPCODE_S 30
+#define GLFLXP_RXDID_FLX_WRD_2_RXDID_OPCODE_M ICE_M(0x3, GLFLXP_RXDID_FLX_WRD_2_RXDID_OPCODE_S)
+#define GLFLXP_RXDID_FLX_WRD_3(_i) (0x0045cb00 + ((_i) * 4))
+#define GLFLXP_RXDID_FLX_WRD_3_PROT_MDID_S 0
+#define GLFLXP_RXDID_FLX_WRD_3_PROT_MDID_M ICE_M(0xFF, GLFLXP_RXDID_FLX_WRD_3_PROT_MDID_S)
+#define GLFLXP_RXDID_FLX_WRD_3_RXDID_OPCODE_S 30
+#define GLFLXP_RXDID_FLX_WRD_3_RXDID_OPCODE_M ICE_M(0x3, GLFLXP_RXDID_FLX_WRD_3_RXDID_OPCODE_S)
+
+#define QRXFLXP_CNTXT(_QRX) (0x00480000 + ((_QRX) * 4))
+#define QRXFLXP_CNTXT_RXDID_IDX_S 0
+#define QRXFLXP_CNTXT_RXDID_IDX_M ICE_M(0x3F, QRXFLXP_CNTXT_RXDID_IDX_S)
+#define QRXFLXP_CNTXT_RXDID_PRIO_S 8
+#define QRXFLXP_CNTXT_RXDID_PRIO_M ICE_M(0x7, QRXFLXP_CNTXT_RXDID_PRIO_S)
+#define QRXFLXP_CNTXT_TS_S 11
+#define QRXFLXP_CNTXT_TS_M BIT(QRXFLXP_CNTXT_TS_S)
#define GLGEN_RSTAT 0x000B8188
#define GLGEN_RSTAT_DEVSTATE_S 0
#define GLGEN_RSTAT_DEVSTATE_M ICE_M(0x3, GLGEN_RSTAT_DEVSTATE_S)
#define GLINT_DYN_CTL_INTENA_M BIT(GLINT_DYN_CTL_INTENA_S)
#define GLINT_DYN_CTL_CLEARPBA_S 1
#define GLINT_DYN_CTL_CLEARPBA_M BIT(GLINT_DYN_CTL_CLEARPBA_S)
+#define GLINT_DYN_CTL_SWINT_TRIG_S 2
+#define GLINT_DYN_CTL_SWINT_TRIG_M BIT(GLINT_DYN_CTL_SWINT_TRIG_S)
#define GLINT_DYN_CTL_ITR_INDX_S 3
#define GLINT_DYN_CTL_SW_ITR_INDX_S 25
#define GLINT_DYN_CTL_SW_ITR_INDX_M ICE_M(0x3, GLINT_DYN_CTL_SW_ITR_INDX_S)
#define PFINT_OICR_CTL_CAUSE_ENA_S 30
#define PFINT_OICR_CTL_CAUSE_ENA_M BIT(PFINT_OICR_CTL_CAUSE_ENA_S)
#define PFINT_OICR_ENA 0x0016C900
+#define QINT_RQCTL(_QRX) (0x00150000 + ((_QRX) * 4))
+#define QINT_RQCTL_MSIX_INDX_S 0
+#define QINT_RQCTL_ITR_INDX_S 11
+#define QINT_RQCTL_CAUSE_ENA_S 30
+#define QINT_RQCTL_CAUSE_ENA_M BIT(QINT_RQCTL_CAUSE_ENA_S)
+#define QINT_TQCTL(_DBQM) (0x00140000 + ((_DBQM) * 4))
+#define QINT_TQCTL_MSIX_INDX_S 0
+#define QINT_TQCTL_ITR_INDX_S 11
+#define QINT_TQCTL_CAUSE_ENA_S 30
+#define QINT_TQCTL_CAUSE_ENA_M BIT(QINT_TQCTL_CAUSE_ENA_S)
#define GLLAN_RCTL_0 0x002941F8
+#define QRX_CONTEXT(_i, _QRX) (0x00280000 + ((_i) * 8192 + (_QRX) * 4))
+#define QRX_CTRL(_QRX) (0x00120000 + ((_QRX) * 4))
+#define QRX_CTRL_MAX_INDEX 2047
+#define QRX_CTRL_QENA_REQ_S 0
+#define QRX_CTRL_QENA_REQ_M BIT(QRX_CTRL_QENA_REQ_S)
+#define QRX_CTRL_QENA_STAT_S 2
+#define QRX_CTRL_QENA_STAT_M BIT(QRX_CTRL_QENA_STAT_S)
+#define QRX_TAIL(_QRX) (0x00290000 + ((_QRX) * 4))
#define GLNVM_FLA 0x000B6108
#define GLNVM_FLA_LOCKED_S 6
#define GLNVM_FLA_LOCKED_M BIT(GLNVM_FLA_LOCKED_S)
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2018, Intel Corporation. */
+
+#ifndef _ICE_LAN_TX_RX_H_
+#define _ICE_LAN_TX_RX_H_
+
+union ice_32byte_rx_desc {
+ struct {
+ __le64 pkt_addr; /* Packet buffer address */
+ __le64 hdr_addr; /* Header buffer address */
+ /* bit 0 of hdr_addr is DD bit */
+ __le64 rsvd1;
+ __le64 rsvd2;
+ } read;
+ struct {
+ struct {
+ struct {
+ __le16 mirroring_status;
+ __le16 l2tag1;
+ } lo_dword;
+ union {
+ __le32 rss; /* RSS Hash */
+ __le32 fd_id; /* Flow Director filter id */
+ } hi_dword;
+ } qword0;
+ struct {
+ /* status/error/PTYPE/length */
+ __le64 status_error_len;
+ } qword1;
+ struct {
+ __le16 ext_status; /* extended status */
+ __le16 rsvd;
+ __le16 l2tag2_1;
+ __le16 l2tag2_2;
+ } qword2;
+ struct {
+ __le32 reserved;
+ __le32 fd_id;
+ } qword3;
+ } wb; /* writeback */
+};
+
+/* RX Flex Descriptor
+ * This descriptor is used instead of the legacy version descriptor when
+ * ice_rlan_ctx.adv_desc is set
+ */
+union ice_32b_rx_flex_desc {
+ struct {
+ __le64 pkt_addr; /* Packet buffer address */
+ __le64 hdr_addr; /* Header buffer address */
+ /* bit 0 of hdr_addr is DD bit */
+ __le64 rsvd1;
+ __le64 rsvd2;
+ } read;
+ struct {
+ /* Qword 0 */
+ u8 rxdid; /* descriptor builder profile id */
+ u8 mir_id_umb_cast; /* mirror=[5:0], umb=[7:6] */
+ __le16 ptype_flex_flags0; /* ptype=[9:0], ff0=[15:10] */
+ __le16 pkt_len; /* [15:14] are reserved */
+ __le16 hdr_len_sph_flex_flags1; /* header=[10:0] */
+ /* sph=[11:11] */
+ /* ff1/ext=[15:12] */
+
+ /* Qword 1 */
+ __le16 status_error0;
+ __le16 l2tag1;
+ __le16 flex_meta0;
+ __le16 flex_meta1;
+
+ /* Qword 2 */
+ __le16 status_error1;
+ u8 flex_flags2;
+ u8 time_stamp_low;
+ __le16 l2tag2_1st;
+ __le16 l2tag2_2nd;
+
+ /* Qword 3 */
+ __le16 flex_meta2;
+ __le16 flex_meta3;
+ union {
+ struct {
+ __le16 flex_meta4;
+ __le16 flex_meta5;
+ } flex;
+ __le32 ts_high;
+ } flex_ts;
+ } wb; /* writeback */
+};
+
+/* Receive Flex Descriptor profile IDs: There are a total
+ * of 64 profiles where profile IDs 0/1 are for legacy; and
+ * profiles 2-63 are flex profiles that can be programmed
+ * with a specific metadata (profile 7 reserved for HW)
+ */
+enum ice_rxdid {
+ ICE_RXDID_START = 0,
+ ICE_RXDID_LEGACY_0 = ICE_RXDID_START,
+ ICE_RXDID_LEGACY_1,
+ ICE_RXDID_FLX_START,
+ ICE_RXDID_FLEX_NIC = ICE_RXDID_FLX_START,
+ ICE_RXDID_FLX_LAST = 63,
+ ICE_RXDID_LAST = ICE_RXDID_FLX_LAST
+};
+
+/* Receive Flex Descriptor Rx opcode values */
+#define ICE_RX_OPC_MDID 0x01
+
+/* Receive Descriptor MDID values */
+#define ICE_RX_MDID_FLOW_ID_LOWER 5
+#define ICE_RX_MDID_FLOW_ID_HIGH 6
+#define ICE_RX_MDID_HASH_LOW 56
+#define ICE_RX_MDID_HASH_HIGH 57
+
+/* Rx Flag64 packet flag bits */
+enum ice_rx_flg64_bits {
+ ICE_RXFLG_PKT_DSI = 0,
+ ICE_RXFLG_EVLAN_x8100 = 15,
+ ICE_RXFLG_EVLAN_x9100,
+ ICE_RXFLG_VLAN_x8100,
+ ICE_RXFLG_TNL_MAC = 22,
+ ICE_RXFLG_TNL_VLAN,
+ ICE_RXFLG_PKT_FRG,
+ ICE_RXFLG_FIN = 32,
+ ICE_RXFLG_SYN,
+ ICE_RXFLG_RST,
+ ICE_RXFLG_TNL0 = 38,
+ ICE_RXFLG_TNL1,
+ ICE_RXFLG_TNL2,
+ ICE_RXFLG_UDP_GRE,
+ ICE_RXFLG_RSVD = 63
+};
+
+#define ICE_RXQ_CTX_SIZE_DWORDS 8
+#define ICE_RXQ_CTX_SZ (ICE_RXQ_CTX_SIZE_DWORDS * sizeof(u32))
+
+/* RLAN Rx queue context data
+ *
+ * The sizes of the variables may be larger than needed due to crossing byte
+ * boundaries. If we do not have the width of the variable set to the correct
+ * size then we could end up shifting bits off the top of the variable when the
+ * variable is at the top of a byte and crosses over into the next byte.
+ */
+struct ice_rlan_ctx {
+ u16 head;
+ u16 cpuid; /* bigger than needed, see above for reason */
+ u64 base;
+ u16 qlen;
+#define ICE_RLAN_CTX_DBUF_S 7
+ u16 dbuf; /* bigger than needed, see above for reason */
+#define ICE_RLAN_CTX_HBUF_S 6
+ u16 hbuf; /* bigger than needed, see above for reason */
+ u8 dtype;
+ u8 dsize;
+ u8 crcstrip;
+ u8 l2tsel;
+ u8 hsplit_0;
+ u8 hsplit_1;
+ u8 showiv;
+ u32 rxmax; /* bigger than needed, see above for reason */
+ u8 tphrdesc_ena;
+ u8 tphwdesc_ena;
+ u8 tphdata_ena;
+ u8 tphhead_ena;
+ u16 lrxqthresh; /* bigger than needed, see above for reason */
+};
+
+struct ice_ctx_ele {
+ u16 offset;
+ u16 size_of;
+ u16 width;
+ u16 lsb;
+};
+
+#define ICE_CTX_STORE(_struct, _ele, _width, _lsb) { \
+ .offset = offsetof(struct _struct, _ele), \
+ .size_of = FIELD_SIZEOF(struct _struct, _ele), \
+ .width = _width, \
+ .lsb = _lsb, \
+}
+
+/* for hsplit_0 field of Rx RLAN context */
+enum ice_rlan_ctx_rx_hsplit_0 {
+ ICE_RLAN_RX_HSPLIT_0_NO_SPLIT = 0,
+ ICE_RLAN_RX_HSPLIT_0_SPLIT_L2 = 1,
+ ICE_RLAN_RX_HSPLIT_0_SPLIT_IP = 2,
+ ICE_RLAN_RX_HSPLIT_0_SPLIT_TCP_UDP = 4,
+ ICE_RLAN_RX_HSPLIT_0_SPLIT_SCTP = 8,
+};
+
+/* for hsplit_1 field of Rx RLAN context */
+enum ice_rlan_ctx_rx_hsplit_1 {
+ ICE_RLAN_RX_HSPLIT_1_NO_SPLIT = 0,
+ ICE_RLAN_RX_HSPLIT_1_SPLIT_L2 = 1,
+ ICE_RLAN_RX_HSPLIT_1_SPLIT_ALWAYS = 2,
+};
+
+/* TX Descriptor */
+struct ice_tx_desc {
+ __le64 buf_addr; /* Address of descriptor's data buf */
+ __le64 cmd_type_offset_bsz;
+};
+
+#define ICE_LAN_TXQ_MAX_QGRPS 127
+#define ICE_LAN_TXQ_MAX_QDIS 1023
+
+/* Tx queue context data
+ *
+ * The sizes of the variables may be larger than needed due to crossing byte
+ * boundaries. If we do not have the width of the variable set to the correct
+ * size then we could end up shifting bits off the top of the variable when the
+ * variable is at the top of a byte and crosses over into the next byte.
+ */
+struct ice_tlan_ctx {
+#define ICE_TLAN_CTX_BASE_S 7
+ u64 base; /* base is defined in 128-byte units */
+ u8 port_num;
+ u16 cgd_num; /* bigger than needed, see above for reason */
+ u8 pf_num;
+ u16 vmvf_num;
+ u8 vmvf_type;
+#define ICE_TLAN_CTX_VMVF_TYPE_VMQ 1
+#define ICE_TLAN_CTX_VMVF_TYPE_PF 2
+ u16 src_vsi;
+ u8 tsyn_ena;
+ u8 alt_vlan;
+ u16 cpuid; /* bigger than needed, see above for reason */
+ u8 wb_mode;
+ u8 tphrd_desc;
+ u8 tphrd;
+ u8 tphwr_desc;
+ u16 cmpq_id;
+ u16 qnum_in_func;
+ u8 itr_notification_mode;
+ u8 adjust_prof_id;
+ u32 qlen; /* bigger than needed, see above for reason */
+ u8 quanta_prof_idx;
+ u8 tso_ena;
+ u16 tso_qnum;
+ u8 legacy_int;
+ u8 drop_ena;
+ u8 cache_prof_idx;
+ u8 pkt_shaper_prof_idx;
+ u8 int_q_state; /* width not needed - internal do not write */
+};
+#endif /* _ICE_LAN_TX_RX_H_ */
#endif /* !CONFIG_DYNAMIC_DEBUG */
static struct workqueue_struct *ice_wq;
+static const struct net_device_ops ice_netdev_ops;
static int ice_vsi_release(struct ice_vsi *vsi);
}
/**
+ * ice_print_link_msg - print link up or down message
+ * @vsi: the VSI whose link status is being queried
+ * @isup: boolean for if the link is now up or down
+ */
+static void ice_print_link_msg(struct ice_vsi *vsi, bool isup)
+{
+ const char *speed;
+ const char *fc;
+
+ if (vsi->current_isup == isup)
+ return;
+
+ vsi->current_isup = isup;
+
+ if (!isup) {
+ netdev_info(vsi->netdev, "NIC Link is Down\n");
+ return;
+ }
+
+ switch (vsi->port_info->phy.link_info.link_speed) {
+ case ICE_AQ_LINK_SPEED_40GB:
+ speed = "40 G";
+ break;
+ case ICE_AQ_LINK_SPEED_25GB:
+ speed = "25 G";
+ break;
+ case ICE_AQ_LINK_SPEED_20GB:
+ speed = "20 G";
+ break;
+ case ICE_AQ_LINK_SPEED_10GB:
+ speed = "10 G";
+ break;
+ case ICE_AQ_LINK_SPEED_5GB:
+ speed = "5 G";
+ break;
+ case ICE_AQ_LINK_SPEED_2500MB:
+ speed = "2.5 G";
+ break;
+ case ICE_AQ_LINK_SPEED_1000MB:
+ speed = "1 G";
+ break;
+ case ICE_AQ_LINK_SPEED_100MB:
+ speed = "100 M";
+ break;
+ default:
+ speed = "Unknown";
+ break;
+ }
+
+ switch (vsi->port_info->fc.current_mode) {
+ case ICE_FC_FULL:
+ fc = "RX/TX";
+ break;
+ case ICE_FC_TX_PAUSE:
+ fc = "TX";
+ break;
+ case ICE_FC_RX_PAUSE:
+ fc = "RX";
+ break;
+ default:
+ fc = "Unknown";
+ break;
+ }
+
+ netdev_info(vsi->netdev, "NIC Link is up %sbps, Flow Control: %s\n",
+ speed, fc);
+}
+
+/**
* __ice_clean_ctrlq - helper function to clean controlq rings
* @pf: ptr to struct ice_pf
* @q_type: specific Control queue type
}
/**
+ * ice_irq_affinity_notify - Callback for affinity changes
+ * @notify: context as to what irq was changed
+ * @mask: the new affinity mask
+ *
+ * This is a callback function used by the irq_set_affinity_notifier function
+ * so that we may register to receive changes to the irq affinity masks.
+ */
+static void ice_irq_affinity_notify(struct irq_affinity_notify *notify,
+ const cpumask_t *mask)
+{
+ struct ice_q_vector *q_vector =
+ container_of(notify, struct ice_q_vector, affinity_notify);
+
+ cpumask_copy(&q_vector->affinity_mask, mask);
+}
+
+/**
+ * ice_irq_affinity_release - Callback for affinity notifier release
+ * @ref: internal core kernel usage
+ *
+ * This is a callback function used by the irq_set_affinity_notifier function
+ * to inform the current notification subscriber that they will no longer
+ * receive notifications.
+ */
+static void ice_irq_affinity_release(struct kref __always_unused *ref) {}
+
+/**
+ * ice_vsi_dis_irq - Mask off queue interrupt generation on the VSI
+ * @vsi: the VSI being un-configured
+ */
+static void ice_vsi_dis_irq(struct ice_vsi *vsi)
+{
+ struct ice_pf *pf = vsi->back;
+ struct ice_hw *hw = &pf->hw;
+ int base = vsi->base_vector;
+ u32 val;
+ int i;
+
+ /* disable interrupt causation from each queue */
+ if (vsi->tx_rings) {
+ ice_for_each_txq(vsi, i) {
+ if (vsi->tx_rings[i]) {
+ u16 reg;
+
+ reg = vsi->tx_rings[i]->reg_idx;
+ val = rd32(hw, QINT_TQCTL(reg));
+ val &= ~QINT_TQCTL_CAUSE_ENA_M;
+ wr32(hw, QINT_TQCTL(reg), val);
+ }
+ }
+ }
+
+ if (vsi->rx_rings) {
+ ice_for_each_rxq(vsi, i) {
+ if (vsi->rx_rings[i]) {
+ u16 reg;
+
+ reg = vsi->rx_rings[i]->reg_idx;
+ val = rd32(hw, QINT_RQCTL(reg));
+ val &= ~QINT_RQCTL_CAUSE_ENA_M;
+ wr32(hw, QINT_RQCTL(reg), val);
+ }
+ }
+ }
+
+ /* disable each interrupt */
+ if (test_bit(ICE_FLAG_MSIX_ENA, pf->flags)) {
+ for (i = vsi->base_vector;
+ i < (vsi->num_q_vectors + vsi->base_vector); i++)
+ wr32(hw, GLINT_DYN_CTL(i), 0);
+
+ ice_flush(hw);
+ for (i = 0; i < vsi->num_q_vectors; i++)
+ synchronize_irq(pf->msix_entries[i + base].vector);
+ }
+}
+
+/**
+ * ice_vsi_ena_irq - Enable IRQ for the given VSI
+ * @vsi: the VSI being configured
+ */
+static int ice_vsi_ena_irq(struct ice_vsi *vsi)
+{
+ struct ice_pf *pf = vsi->back;
+ struct ice_hw *hw = &pf->hw;
+
+ if (test_bit(ICE_FLAG_MSIX_ENA, pf->flags)) {
+ int i;
+
+ for (i = 0; i < vsi->num_q_vectors; i++)
+ ice_irq_dynamic_ena(hw, vsi, vsi->q_vectors[i]);
+ }
+
+ ice_flush(hw);
+ return 0;
+}
+
+/**
* ice_vsi_delete - delete a VSI from the switch
* @vsi: pointer to VSI being removed
*/
}
/**
+ * ice_vsi_req_irq_msix - get MSI-X vectors from the OS for the VSI
+ * @vsi: the VSI being configured
+ * @basename: name for the vector
+ */
+static int ice_vsi_req_irq_msix(struct ice_vsi *vsi, char *basename)
+{
+ int q_vectors = vsi->num_q_vectors;
+ struct ice_pf *pf = vsi->back;
+ int base = vsi->base_vector;
+ int rx_int_idx = 0;
+ int tx_int_idx = 0;
+ int vector, err;
+ int irq_num;
+
+ for (vector = 0; vector < q_vectors; vector++) {
+ struct ice_q_vector *q_vector = vsi->q_vectors[vector];
+
+ irq_num = pf->msix_entries[base + vector].vector;
+
+ if (q_vector->tx.ring && q_vector->rx.ring) {
+ snprintf(q_vector->name, sizeof(q_vector->name) - 1,
+ "%s-%s-%d", basename, "TxRx", rx_int_idx++);
+ tx_int_idx++;
+ } else if (q_vector->rx.ring) {
+ snprintf(q_vector->name, sizeof(q_vector->name) - 1,
+ "%s-%s-%d", basename, "rx", rx_int_idx++);
+ } else if (q_vector->tx.ring) {
+ snprintf(q_vector->name, sizeof(q_vector->name) - 1,
+ "%s-%s-%d", basename, "tx", tx_int_idx++);
+ } else {
+ /* skip this unused q_vector */
+ continue;
+ }
+ err = devm_request_irq(&pf->pdev->dev,
+ pf->msix_entries[base + vector].vector,
+ vsi->irq_handler, 0, q_vector->name,
+ q_vector);
+ if (err) {
+ netdev_err(vsi->netdev,
+ "MSIX request_irq failed, error: %d\n", err);
+ goto free_q_irqs;
+ }
+
+ /* register for affinity change notifications */
+ q_vector->affinity_notify.notify = ice_irq_affinity_notify;
+ q_vector->affinity_notify.release = ice_irq_affinity_release;
+ irq_set_affinity_notifier(irq_num, &q_vector->affinity_notify);
+
+ /* assign the mask for this irq */
+ irq_set_affinity_hint(irq_num, &q_vector->affinity_mask);
+ }
+
+ vsi->irqs_ready = true;
+ return 0;
+
+free_q_irqs:
+ while (vector) {
+ vector--;
+ irq_num = pf->msix_entries[base + vector].vector,
+ irq_set_affinity_notifier(irq_num, NULL);
+ irq_set_affinity_hint(irq_num, NULL);
+ devm_free_irq(&pf->pdev->dev, irq_num, &vsi->q_vectors[vector]);
+ }
+ return err;
+}
+
+/**
* ice_vsi_setup_q_map - Setup a VSI queue map
* @vsi: the VSI being configured
* @ctxt: VSI context structure
}
/**
+ * ice_vsi_release_msix - Clear the queue to Interrupt mapping in HW
+ * @vsi: the VSI being cleaned up
+ */
+static void ice_vsi_release_msix(struct ice_vsi *vsi)
+{
+ struct ice_pf *pf = vsi->back;
+ u16 vector = vsi->base_vector;
+ struct ice_hw *hw = &pf->hw;
+ u32 txq = 0;
+ u32 rxq = 0;
+ int i, q;
+
+ for (i = 0; i < vsi->num_q_vectors; i++, vector++) {
+ struct ice_q_vector *q_vector = vsi->q_vectors[i];
+
+ wr32(hw, GLINT_ITR(ICE_RX_ITR, vector), 0);
+ wr32(hw, GLINT_ITR(ICE_TX_ITR, vector), 0);
+ for (q = 0; q < q_vector->num_ring_tx; q++) {
+ wr32(hw, QINT_TQCTL(vsi->txq_map[txq]), 0);
+ txq++;
+ }
+
+ for (q = 0; q < q_vector->num_ring_rx; q++) {
+ wr32(hw, QINT_RQCTL(vsi->rxq_map[rxq]), 0);
+ rxq++;
+ }
+ }
+
+ ice_flush(hw);
+}
+
+/**
* ice_vsi_clear_rings - Deallocates the Tx and Rx rings for VSI
* @vsi: the VSI having rings deallocated
*/
}
/**
+ * ice_vsi_free_irq - Free the irq association with the OS
+ * @vsi: the VSI being configured
+ */
+static void ice_vsi_free_irq(struct ice_vsi *vsi)
+{
+ struct ice_pf *pf = vsi->back;
+ int base = vsi->base_vector;
+
+ if (test_bit(ICE_FLAG_MSIX_ENA, pf->flags)) {
+ int i;
+
+ if (!vsi->q_vectors || !vsi->irqs_ready)
+ return;
+
+ vsi->irqs_ready = false;
+ for (i = 0; i < vsi->num_q_vectors; i++) {
+ u16 vector = i + base;
+ int irq_num;
+
+ irq_num = pf->msix_entries[vector].vector;
+
+ /* free only the irqs that were actually requested */
+ if (!vsi->q_vectors[i] ||
+ !(vsi->q_vectors[i]->num_ring_tx ||
+ vsi->q_vectors[i]->num_ring_rx))
+ continue;
+
+ /* clear the affinity notifier in the IRQ descriptor */
+ irq_set_affinity_notifier(irq_num, NULL);
+
+ /* clear the affinity_mask in the IRQ descriptor */
+ irq_set_affinity_hint(irq_num, NULL);
+ synchronize_irq(irq_num);
+ devm_free_irq(&pf->pdev->dev, irq_num,
+ vsi->q_vectors[i]);
+ }
+ ice_vsi_release_msix(vsi);
+ }
+}
+
+/**
+ * ice_vsi_cfg_msix - MSIX mode Interrupt Config in the HW
+ * @vsi: the VSI being configured
+ */
+static void ice_vsi_cfg_msix(struct ice_vsi *vsi)
+{
+ struct ice_pf *pf = vsi->back;
+ u16 vector = vsi->base_vector;
+ struct ice_hw *hw = &pf->hw;
+ u32 txq = 0, rxq = 0;
+ int i, q, itr;
+ u8 itr_gran;
+
+ for (i = 0; i < vsi->num_q_vectors; i++, vector++) {
+ struct ice_q_vector *q_vector = vsi->q_vectors[i];
+
+ itr_gran = hw->itr_gran_200;
+
+ if (q_vector->num_ring_rx) {
+ q_vector->rx.itr =
+ ITR_TO_REG(vsi->rx_rings[rxq]->rx_itr_setting,
+ itr_gran);
+ q_vector->rx.latency_range = ICE_LOW_LATENCY;
+ }
+
+ if (q_vector->num_ring_tx) {
+ q_vector->tx.itr =
+ ITR_TO_REG(vsi->tx_rings[txq]->tx_itr_setting,
+ itr_gran);
+ q_vector->tx.latency_range = ICE_LOW_LATENCY;
+ }
+ wr32(hw, GLINT_ITR(ICE_RX_ITR, vector), q_vector->rx.itr);
+ wr32(hw, GLINT_ITR(ICE_TX_ITR, vector), q_vector->tx.itr);
+
+ /* Both Transmit Queue Interrupt Cause Control register
+ * and Receive Queue Interrupt Cause control register
+ * expects MSIX_INDX field to be the vector index
+ * within the function space and not the absolute
+ * vector index across PF or across device.
+ * For SR-IOV VF VSIs queue vector index always starts
+ * with 1 since first vector index(0) is used for OICR
+ * in VF space. Since VMDq and other PF VSIs are withtin
+ * the PF function space, use the vector index thats
+ * tracked for this PF.
+ */
+ for (q = 0; q < q_vector->num_ring_tx; q++) {
+ u32 val;
+
+ itr = ICE_TX_ITR;
+ val = QINT_TQCTL_CAUSE_ENA_M |
+ (itr << QINT_TQCTL_ITR_INDX_S) |
+ (vector << QINT_TQCTL_MSIX_INDX_S);
+ wr32(hw, QINT_TQCTL(vsi->txq_map[txq]), val);
+ txq++;
+ }
+
+ for (q = 0; q < q_vector->num_ring_rx; q++) {
+ u32 val;
+
+ itr = ICE_RX_ITR;
+ val = QINT_RQCTL_CAUSE_ENA_M |
+ (itr << QINT_RQCTL_ITR_INDX_S) |
+ (vector << QINT_RQCTL_MSIX_INDX_S);
+ wr32(hw, QINT_RQCTL(vsi->rxq_map[rxq]), val);
+ rxq++;
+ }
+ }
+
+ ice_flush(hw);
+}
+
+/**
* ice_ena_misc_vector - enable the non-queue interrupts
* @pf: board private structure
*/
wr32(hw, PFINT_OICR_ENA, ena_mask);
if (!test_bit(__ICE_DOWN, pf->state)) {
ice_service_task_schedule(pf);
- ice_irq_dynamic_ena(hw);
+ ice_irq_dynamic_ena(hw, NULL, NULL);
}
return ret;
ITR_TO_REG(ICE_ITR_8K, itr_gran));
ice_flush(hw);
- ice_irq_dynamic_ena(hw);
+ ice_irq_dynamic_ena(hw, NULL, NULL);
return 0;
}
netdev->priv_flags |= IFF_UNICAST_FLT;
+ /* assign netdev_ops */
+ netdev->netdev_ops = &ice_netdev_ops;
+
/* setup watchdog timeout value to be 5 second */
netdev->watchdog_timeo = 5 * HZ;
module_exit(ice_module_exit);
/**
- * ice_vsi_release - Delete a VSI and free its resources
- * @vsi: the VSI being removed
+ * ice_setup_tx_ctx - setup a struct ice_tlan_ctx instance
+ * @ring: The Tx ring to configure
+ * @tlan_ctx: Pointer to the Tx LAN queue context structure to be initialized
+ * @pf_q: queue index in the PF space
*
- * Returns 0 on success or < 0 on error
+ * Configure the Tx descriptor ring in TLAN context.
*/
-static int ice_vsi_release(struct ice_vsi *vsi)
+static void
+ice_setup_tx_ctx(struct ice_ring *ring, struct ice_tlan_ctx *tlan_ctx, u16 pf_q)
{
- struct ice_pf *pf;
+ struct ice_vsi *vsi = ring->vsi;
+ struct ice_hw *hw = &vsi->back->hw;
- if (!vsi->back)
- return -ENODEV;
- pf = vsi->back;
+ tlan_ctx->base = ring->dma >> ICE_TLAN_CTX_BASE_S;
- if (vsi->netdev) {
- unregister_netdev(vsi->netdev);
- free_netdev(vsi->netdev);
- vsi->netdev = NULL;
+ tlan_ctx->port_num = vsi->port_info->lport;
+
+ /* Transmit Queue Length */
+ tlan_ctx->qlen = ring->count;
+
+ /* PF number */
+ tlan_ctx->pf_num = hw->pf_id;
+
+ /* queue belongs to a specific VSI type
+ * VF / VM index should be programmed per vmvf_type setting:
+ * for vmvf_type = VF, it is VF number between 0-256
+ * for vmvf_type = VM, it is VM number between 0-767
+ * for PF or EMP this field should be set to zero
+ */
+ switch (vsi->type) {
+ case ICE_VSI_PF:
+ tlan_ctx->vmvf_type = ICE_TLAN_CTX_VMVF_TYPE_PF;
+ break;
+ default:
+ return;
}
- /* reclaim interrupt vectors back to PF */
- ice_free_res(vsi->back->irq_tracker, vsi->base_vector, vsi->idx);
- pf->num_avail_msix += vsi->num_q_vectors;
+ /* make sure the context is associated with the right VSI */
+ tlan_ctx->src_vsi = vsi->vsi_num;
- ice_remove_vsi_fltr(&pf->hw, vsi->vsi_num);
- ice_vsi_delete(vsi);
- ice_vsi_free_q_vectors(vsi);
- ice_vsi_clear_rings(vsi);
+ tlan_ctx->tso_ena = ICE_TX_LEGACY;
+ tlan_ctx->tso_qnum = pf_q;
- ice_vsi_put_qs(vsi);
- pf->q_left_tx += vsi->alloc_txq;
- pf->q_left_rx += vsi->alloc_rxq;
+ /* Legacy or Advanced Host Interface:
+ * 0: Advanced Host Interface
+ * 1: Legacy Host Interface
+ */
+ tlan_ctx->legacy_int = ICE_TX_LEGACY;
+}
- ice_vsi_clear(vsi);
+/**
+ * ice_vsi_cfg_txqs - Configure the VSI for Tx
+ * @vsi: the VSI being configured
+ *
+ * Return 0 on success and a negative value on error
+ * Configure the Tx VSI for operation.
+ */
+static int ice_vsi_cfg_txqs(struct ice_vsi *vsi)
+{
+ struct ice_aqc_add_tx_qgrp *qg_buf;
+ struct ice_aqc_add_txqs_perq *txq;
+ struct ice_pf *pf = vsi->back;
+ enum ice_status status;
+ u16 buf_len, i, pf_q;
+ int err = 0, tc = 0;
+ u8 num_q_grps;
+
+ buf_len = sizeof(struct ice_aqc_add_tx_qgrp);
+ qg_buf = devm_kzalloc(&pf->pdev->dev, buf_len, GFP_KERNEL);
+ if (!qg_buf)
+ return -ENOMEM;
+
+ if (vsi->num_txq > ICE_MAX_TXQ_PER_TXQG) {
+ err = -EINVAL;
+ goto err_cfg_txqs;
+ }
+ qg_buf->num_txqs = 1;
+ num_q_grps = 1;
+
+ /* set up and configure the tx queues */
+ ice_for_each_txq(vsi, i) {
+ struct ice_tlan_ctx tlan_ctx = { 0 };
+
+ pf_q = vsi->txq_map[i];
+ ice_setup_tx_ctx(vsi->tx_rings[i], &tlan_ctx, pf_q);
+ /* copy context contents into the qg_buf */
+ qg_buf->txqs[0].txq_id = cpu_to_le16(pf_q);
+ ice_set_ctx((u8 *)&tlan_ctx, qg_buf->txqs[0].txq_ctx,
+ ice_tlan_ctx_info);
+
+ /* init queue specific tail reg. It is referred as transmit
+ * comm scheduler queue doorbell.
+ */
+ vsi->tx_rings[i]->tail = pf->hw.hw_addr + QTX_COMM_DBELL(pf_q);
+ status = ice_ena_vsi_txq(vsi->port_info, vsi->vsi_num, tc,
+ num_q_grps, qg_buf, buf_len, NULL);
+ if (status) {
+ dev_err(&vsi->back->pdev->dev,
+ "Failed to set LAN Tx queue context, error: %d\n",
+ status);
+ err = -ENODEV;
+ goto err_cfg_txqs;
+ }
+
+ /* Add Tx Queue TEID into the VSI tx ring from the response
+ * This will complete configuring and enabling the queue.
+ */
+ txq = &qg_buf->txqs[0];
+ if (pf_q == le16_to_cpu(txq->txq_id))
+ vsi->tx_rings[i]->txq_teid =
+ le32_to_cpu(txq->q_teid);
+ }
+err_cfg_txqs:
+ devm_kfree(&pf->pdev->dev, qg_buf);
+ return err;
+}
+
+/**
+ * ice_setup_rx_ctx - Configure a receive ring context
+ * @ring: The Rx ring to configure
+ *
+ * Configure the Rx descriptor ring in RLAN context.
+ */
+static int ice_setup_rx_ctx(struct ice_ring *ring)
+{
+ struct ice_vsi *vsi = ring->vsi;
+ struct ice_hw *hw = &vsi->back->hw;
+ u32 rxdid = ICE_RXDID_FLEX_NIC;
+ struct ice_rlan_ctx rlan_ctx;
+ u32 regval;
+ u16 pf_q;
+ int err;
+
+ /* what is RX queue number in global space of 2K rx queues */
+ pf_q = vsi->rxq_map[ring->q_index];
+
+ /* clear the context structure first */
+ memset(&rlan_ctx, 0, sizeof(rlan_ctx));
+
+ rlan_ctx.base = ring->dma >> 7;
+
+ rlan_ctx.qlen = ring->count;
+
+ /* Receive Packet Data Buffer Size.
+ * The Packet Data Buffer Size is defined in 128 byte units.
+ */
+ rlan_ctx.dbuf = vsi->rx_buf_len >> ICE_RLAN_CTX_DBUF_S;
+
+ /* use 32 byte descriptors */
+ rlan_ctx.dsize = 1;
+
+ /* Strip the Ethernet CRC bytes before the packet is posted to host
+ * memory.
+ */
+ rlan_ctx.crcstrip = 1;
+
+ /* L2TSEL flag defines the reported L2 Tags in the receive descriptor */
+ rlan_ctx.l2tsel = 1;
+
+ rlan_ctx.dtype = ICE_RX_DTYPE_NO_SPLIT;
+ rlan_ctx.hsplit_0 = ICE_RLAN_RX_HSPLIT_0_NO_SPLIT;
+ rlan_ctx.hsplit_1 = ICE_RLAN_RX_HSPLIT_1_NO_SPLIT;
+
+ /* This controls whether VLAN is stripped from inner headers
+ * The VLAN in the inner L2 header is stripped to the receive
+ * descriptor if enabled by this flag.
+ */
+ rlan_ctx.showiv = 0;
+
+ /* Max packet size for this queue - must not be set to a larger value
+ * than 5 x DBUF
+ */
+ rlan_ctx.rxmax = min_t(u16, vsi->max_frame,
+ ICE_MAX_CHAINED_RX_BUFS * vsi->rx_buf_len);
+
+ /* Rx queue threshold in units of 64 */
+ rlan_ctx.lrxqthresh = 1;
+
+ /* Enable Flexible Descriptors in the queue context which
+ * allows this driver to select a specific receive descriptor format
+ */
+ regval = rd32(hw, QRXFLXP_CNTXT(pf_q));
+ regval |= (rxdid << QRXFLXP_CNTXT_RXDID_IDX_S) &
+ QRXFLXP_CNTXT_RXDID_IDX_M;
+
+ /* increasing context priority to pick up profile id;
+ * default is 0x01; setting to 0x03 to ensure profile
+ * is programming if prev context is of same priority
+ */
+ regval |= (0x03 << QRXFLXP_CNTXT_RXDID_PRIO_S) &
+ QRXFLXP_CNTXT_RXDID_PRIO_M;
+
+ wr32(hw, QRXFLXP_CNTXT(pf_q), regval);
+
+ /* Absolute queue number out of 2K needs to be passed */
+ err = ice_write_rxq_ctx(hw, &rlan_ctx, pf_q);
+ if (err) {
+ dev_err(&vsi->back->pdev->dev,
+ "Failed to set LAN Rx queue context for absolute Rx queue %d error: %d\n",
+ pf_q, err);
+ return -EIO;
+ }
+
+ /* init queue specific tail register */
+ ring->tail = hw->hw_addr + QRX_TAIL(pf_q);
+ writel(0, ring->tail);
+ ice_alloc_rx_bufs(ring, ICE_DESC_UNUSED(ring));
return 0;
}
+
+/**
+ * ice_vsi_cfg_rxqs - Configure the VSI for Rx
+ * @vsi: the VSI being configured
+ *
+ * Return 0 on success and a negative value on error
+ * Configure the Rx VSI for operation.
+ */
+static int ice_vsi_cfg_rxqs(struct ice_vsi *vsi)
+{
+ int err = 0;
+ u16 i;
+
+ if (vsi->netdev && vsi->netdev->mtu > ETH_DATA_LEN)
+ vsi->max_frame = vsi->netdev->mtu +
+ ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
+ else
+ vsi->max_frame = ICE_RXBUF_2048;
+
+ vsi->rx_buf_len = ICE_RXBUF_2048;
+ /* set up individual rings */
+ for (i = 0; i < vsi->num_rxq && !err; i++)
+ err = ice_setup_rx_ctx(vsi->rx_rings[i]);
+
+ if (err) {
+ dev_err(&vsi->back->pdev->dev, "ice_setup_rx_ctx failed\n");
+ return -EIO;
+ }
+ return err;
+}
+
+/**
+ * ice_vsi_cfg - Setup the VSI
+ * @vsi: the VSI being configured
+ *
+ * Return 0 on success and negative value on error
+ */
+static int ice_vsi_cfg(struct ice_vsi *vsi)
+{
+ int err;
+
+ err = ice_vsi_cfg_txqs(vsi);
+ if (!err)
+ err = ice_vsi_cfg_rxqs(vsi);
+
+ return err;
+}
+
+/**
+ * ice_vsi_stop_tx_rings - Disable Tx rings
+ * @vsi: the VSI being configured
+ */
+static int ice_vsi_stop_tx_rings(struct ice_vsi *vsi)
+{
+ struct ice_pf *pf = vsi->back;
+ struct ice_hw *hw = &pf->hw;
+ enum ice_status status;
+ u32 *q_teids, val;
+ u16 *q_ids, i;
+ int err = 0;
+
+ if (vsi->num_txq > ICE_LAN_TXQ_MAX_QDIS)
+ return -EINVAL;
+
+ q_teids = devm_kcalloc(&pf->pdev->dev, vsi->num_txq, sizeof(*q_teids),
+ GFP_KERNEL);
+ if (!q_teids)
+ return -ENOMEM;
+
+ q_ids = devm_kcalloc(&pf->pdev->dev, vsi->num_txq, sizeof(*q_ids),
+ GFP_KERNEL);
+ if (!q_ids) {
+ err = -ENOMEM;
+ goto err_alloc_q_ids;
+ }
+
+ /* set up the tx queue list to be disabled */
+ ice_for_each_txq(vsi, i) {
+ u16 v_idx;
+
+ if (!vsi->tx_rings || !vsi->tx_rings[i]) {
+ err = -EINVAL;
+ goto err_out;
+ }
+
+ q_ids[i] = vsi->txq_map[i];
+ q_teids[i] = vsi->tx_rings[i]->txq_teid;
+
+ /* clear cause_ena bit for disabled queues */
+ val = rd32(hw, QINT_TQCTL(vsi->tx_rings[i]->reg_idx));
+ val &= ~QINT_TQCTL_CAUSE_ENA_M;
+ wr32(hw, QINT_TQCTL(vsi->tx_rings[i]->reg_idx), val);
+
+ /* software is expected to wait for 100 ns */
+ ndelay(100);
+
+ /* trigger a software interrupt for the vector associated to
+ * the queue to schedule napi handler
+ */
+ v_idx = vsi->tx_rings[i]->q_vector->v_idx;
+ wr32(hw, GLINT_DYN_CTL(vsi->base_vector + v_idx),
+ GLINT_DYN_CTL_SWINT_TRIG_M | GLINT_DYN_CTL_INTENA_MSK_M);
+ }
+ status = ice_dis_vsi_txq(vsi->port_info, vsi->num_txq, q_ids, q_teids,
+ NULL);
+ if (status) {
+ dev_err(&pf->pdev->dev,
+ "Failed to disable LAN Tx queues, error: %d\n",
+ status);
+ err = -ENODEV;
+ }
+
+err_out:
+ devm_kfree(&pf->pdev->dev, q_ids);
+
+err_alloc_q_ids:
+ devm_kfree(&pf->pdev->dev, q_teids);
+
+ return err;
+}
+
+/**
+ * ice_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
+ * @pf: the PF being configured
+ * @pf_q: the PF queue
+ * @ena: enable or disable state of the queue
+ *
+ * This routine will wait for the given Rx queue of the PF to reach the
+ * enabled or disabled state.
+ * Returns -ETIMEDOUT in case of failing to reach the requested state after
+ * multiple retries; else will return 0 in case of success.
+ */
+static int ice_pf_rxq_wait(struct ice_pf *pf, int pf_q, bool ena)
+{
+ int i;
+
+ for (i = 0; i < ICE_Q_WAIT_RETRY_LIMIT; i++) {
+ u32 rx_reg = rd32(&pf->hw, QRX_CTRL(pf_q));
+
+ if (ena == !!(rx_reg & QRX_CTRL_QENA_STAT_M))
+ break;
+
+ usleep_range(10, 20);
+ }
+ if (i >= ICE_Q_WAIT_RETRY_LIMIT)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+/**
+ * ice_vsi_ctrl_rx_rings - Start or stop a VSI's rx rings
+ * @vsi: the VSI being configured
+ * @ena: start or stop the rx rings
+ */
+static int ice_vsi_ctrl_rx_rings(struct ice_vsi *vsi, bool ena)
+{
+ struct ice_pf *pf = vsi->back;
+ struct ice_hw *hw = &pf->hw;
+ int i, j, ret = 0;
+
+ for (i = 0; i < vsi->num_rxq; i++) {
+ int pf_q = vsi->rxq_map[i];
+ u32 rx_reg;
+
+ for (j = 0; j < ICE_Q_WAIT_MAX_RETRY; j++) {
+ rx_reg = rd32(hw, QRX_CTRL(pf_q));
+ if (((rx_reg >> QRX_CTRL_QENA_REQ_S) & 1) ==
+ ((rx_reg >> QRX_CTRL_QENA_STAT_S) & 1))
+ break;
+ usleep_range(1000, 2000);
+ }
+
+ /* Skip if the queue is already in the requested state */
+ if (ena == !!(rx_reg & QRX_CTRL_QENA_STAT_M))
+ continue;
+
+ /* turn on/off the queue */
+ if (ena)
+ rx_reg |= QRX_CTRL_QENA_REQ_M;
+ else
+ rx_reg &= ~QRX_CTRL_QENA_REQ_M;
+ wr32(hw, QRX_CTRL(pf_q), rx_reg);
+
+ /* wait for the change to finish */
+ ret = ice_pf_rxq_wait(pf, pf_q, ena);
+ if (ret) {
+ dev_err(&pf->pdev->dev,
+ "VSI idx %d Rx ring %d %sable timeout\n",
+ vsi->idx, pf_q, (ena ? "en" : "dis"));
+ break;
+ }
+ }
+
+ return ret;
+}
+
+/**
+ * ice_vsi_start_rx_rings - start VSI's rx rings
+ * @vsi: the VSI whose rings are to be started
+ *
+ * Returns 0 on success and a negative value on error
+ */
+static int ice_vsi_start_rx_rings(struct ice_vsi *vsi)
+{
+ return ice_vsi_ctrl_rx_rings(vsi, true);
+}
+
+/**
+ * ice_vsi_stop_rx_rings - stop VSI's rx rings
+ * @vsi: the VSI
+ *
+ * Returns 0 on success and a negative value on error
+ */
+static int ice_vsi_stop_rx_rings(struct ice_vsi *vsi)
+{
+ return ice_vsi_ctrl_rx_rings(vsi, false);
+}
+
+/**
+ * ice_vsi_stop_tx_rx_rings - stop VSI's tx and rx rings
+ * @vsi: the VSI
+ * Returns 0 on success and a negative value on error
+ */
+static int ice_vsi_stop_tx_rx_rings(struct ice_vsi *vsi)
+{
+ int err_tx, err_rx;
+
+ err_tx = ice_vsi_stop_tx_rings(vsi);
+ if (err_tx)
+ dev_dbg(&vsi->back->pdev->dev, "Failed to disable Tx rings\n");
+
+ err_rx = ice_vsi_stop_rx_rings(vsi);
+ if (err_rx)
+ dev_dbg(&vsi->back->pdev->dev, "Failed to disable Rx rings\n");
+
+ if (err_tx || err_rx)
+ return -EIO;
+
+ return 0;
+}
+
+/**
+ * ice_up_complete - Finish the last steps of bringing up a connection
+ * @vsi: The VSI being configured
+ *
+ * Return 0 on success and negative value on error
+ */
+static int ice_up_complete(struct ice_vsi *vsi)
+{
+ struct ice_pf *pf = vsi->back;
+ int err;
+
+ if (test_bit(ICE_FLAG_MSIX_ENA, pf->flags))
+ ice_vsi_cfg_msix(vsi);
+ else
+ return -ENOTSUPP;
+
+ /* Enable only Rx rings, Tx rings were enabled by the FW when the
+ * Tx queue group list was configured and the context bits were
+ * programmed using ice_vsi_cfg_txqs
+ */
+ err = ice_vsi_start_rx_rings(vsi);
+ if (err)
+ return err;
+
+ clear_bit(__ICE_DOWN, vsi->state);
+ ice_vsi_ena_irq(vsi);
+
+ if (vsi->port_info &&
+ (vsi->port_info->phy.link_info.link_info & ICE_AQ_LINK_UP) &&
+ vsi->netdev) {
+ ice_print_link_msg(vsi, true);
+ netif_tx_start_all_queues(vsi->netdev);
+ netif_carrier_on(vsi->netdev);
+ }
+
+ ice_service_task_schedule(pf);
+
+ return err;
+}
+
+/**
+ * ice_down - Shutdown the connection
+ * @vsi: The VSI being stopped
+ */
+static int ice_down(struct ice_vsi *vsi)
+{
+ int i, err;
+
+ /* Caller of this function is expected to set the
+ * vsi->state __ICE_DOWN bit
+ */
+ if (vsi->netdev) {
+ netif_carrier_off(vsi->netdev);
+ netif_tx_disable(vsi->netdev);
+ }
+
+ ice_vsi_dis_irq(vsi);
+ err = ice_vsi_stop_tx_rx_rings(vsi);
+
+ ice_for_each_txq(vsi, i)
+ ice_clean_tx_ring(vsi->tx_rings[i]);
+
+ ice_for_each_rxq(vsi, i)
+ ice_clean_rx_ring(vsi->rx_rings[i]);
+
+ if (err)
+ netdev_err(vsi->netdev, "Failed to close VSI 0x%04X on switch 0x%04X\n",
+ vsi->vsi_num, vsi->vsw->sw_id);
+ return err;
+}
+
+/**
+ * ice_vsi_setup_tx_rings - Allocate VSI Tx queue resources
+ * @vsi: VSI having resources allocated
+ *
+ * Return 0 on success, negative on failure
+ */
+static int ice_vsi_setup_tx_rings(struct ice_vsi *vsi)
+{
+ int i, err;
+
+ if (!vsi->num_txq) {
+ dev_err(&vsi->back->pdev->dev, "VSI %d has 0 Tx queues\n",
+ vsi->vsi_num);
+ return -EINVAL;
+ }
+
+ ice_for_each_txq(vsi, i) {
+ err = ice_setup_tx_ring(vsi->tx_rings[i]);
+ if (err)
+ break;
+ }
+
+ return err;
+}
+
+/**
+ * ice_vsi_setup_rx_rings - Allocate VSI Rx queue resources
+ * @vsi: VSI having resources allocated
+ *
+ * Return 0 on success, negative on failure
+ */
+static int ice_vsi_setup_rx_rings(struct ice_vsi *vsi)
+{
+ int i, err;
+
+ if (!vsi->num_rxq) {
+ dev_err(&vsi->back->pdev->dev, "VSI %d has 0 Rx queues\n",
+ vsi->vsi_num);
+ return -EINVAL;
+ }
+
+ ice_for_each_rxq(vsi, i) {
+ err = ice_setup_rx_ring(vsi->rx_rings[i]);
+ if (err)
+ break;
+ }
+
+ return err;
+}
+
+/**
+ * ice_vsi_req_irq - Request IRQ from the OS
+ * @vsi: The VSI IRQ is being requested for
+ * @basename: name for the vector
+ *
+ * Return 0 on success and a negative value on error
+ */
+static int ice_vsi_req_irq(struct ice_vsi *vsi, char *basename)
+{
+ struct ice_pf *pf = vsi->back;
+ int err = -EINVAL;
+
+ if (test_bit(ICE_FLAG_MSIX_ENA, pf->flags))
+ err = ice_vsi_req_irq_msix(vsi, basename);
+
+ return err;
+}
+
+/**
+ * ice_vsi_free_tx_rings - Free Tx resources for VSI queues
+ * @vsi: the VSI having resources freed
+ */
+static void ice_vsi_free_tx_rings(struct ice_vsi *vsi)
+{
+ int i;
+
+ if (!vsi->tx_rings)
+ return;
+
+ ice_for_each_txq(vsi, i)
+ if (vsi->tx_rings[i] && vsi->tx_rings[i]->desc)
+ ice_free_tx_ring(vsi->tx_rings[i]);
+}
+
+/**
+ * ice_vsi_free_rx_rings - Free Rx resources for VSI queues
+ * @vsi: the VSI having resources freed
+ */
+static void ice_vsi_free_rx_rings(struct ice_vsi *vsi)
+{
+ int i;
+
+ if (!vsi->rx_rings)
+ return;
+
+ ice_for_each_rxq(vsi, i)
+ if (vsi->rx_rings[i] && vsi->rx_rings[i]->desc)
+ ice_free_rx_ring(vsi->rx_rings[i]);
+}
+
+/**
+ * ice_vsi_open - Called when a network interface is made active
+ * @vsi: the VSI to open
+ *
+ * Initialization of the VSI
+ *
+ * Returns 0 on success, negative value on error
+ */
+static int ice_vsi_open(struct ice_vsi *vsi)
+{
+ char int_name[ICE_INT_NAME_STR_LEN];
+ struct ice_pf *pf = vsi->back;
+ int err;
+
+ /* allocate descriptors */
+ err = ice_vsi_setup_tx_rings(vsi);
+ if (err)
+ goto err_setup_tx;
+
+ err = ice_vsi_setup_rx_rings(vsi);
+ if (err)
+ goto err_setup_rx;
+
+ err = ice_vsi_cfg(vsi);
+ if (err)
+ goto err_setup_rx;
+
+ snprintf(int_name, sizeof(int_name) - 1, "%s-%s",
+ dev_driver_string(&pf->pdev->dev), vsi->netdev->name);
+ err = ice_vsi_req_irq(vsi, int_name);
+ if (err)
+ goto err_setup_rx;
+
+ /* Notify the stack of the actual queue counts. */
+ err = netif_set_real_num_tx_queues(vsi->netdev, vsi->num_txq);
+ if (err)
+ goto err_set_qs;
+
+ err = netif_set_real_num_rx_queues(vsi->netdev, vsi->num_rxq);
+ if (err)
+ goto err_set_qs;
+
+ err = ice_up_complete(vsi);
+ if (err)
+ goto err_up_complete;
+
+ return 0;
+
+err_up_complete:
+ ice_down(vsi);
+err_set_qs:
+ ice_vsi_free_irq(vsi);
+err_setup_rx:
+ ice_vsi_free_rx_rings(vsi);
+err_setup_tx:
+ ice_vsi_free_tx_rings(vsi);
+
+ return err;
+}
+
+/**
+ * ice_vsi_close - Shut down a VSI
+ * @vsi: the VSI being shut down
+ */
+static void ice_vsi_close(struct ice_vsi *vsi)
+{
+ if (!test_and_set_bit(__ICE_DOWN, vsi->state))
+ ice_down(vsi);
+
+ ice_vsi_free_irq(vsi);
+ ice_vsi_free_tx_rings(vsi);
+ ice_vsi_free_rx_rings(vsi);
+}
+
+/**
+ * ice_vsi_release - Delete a VSI and free its resources
+ * @vsi: the VSI being removed
+ *
+ * Returns 0 on success or < 0 on error
+ */
+static int ice_vsi_release(struct ice_vsi *vsi)
+{
+ struct ice_pf *pf;
+
+ if (!vsi->back)
+ return -ENODEV;
+ pf = vsi->back;
+
+ if (vsi->netdev) {
+ unregister_netdev(vsi->netdev);
+ free_netdev(vsi->netdev);
+ vsi->netdev = NULL;
+ }
+
+ ice_vsi_dis_irq(vsi);
+ ice_vsi_close(vsi);
+
+ /* reclaim interrupt vectors back to PF */
+ ice_free_res(vsi->back->irq_tracker, vsi->base_vector, vsi->idx);
+ pf->num_avail_msix += vsi->num_q_vectors;
+
+ ice_remove_vsi_fltr(&pf->hw, vsi->vsi_num);
+ ice_vsi_delete(vsi);
+ ice_vsi_free_q_vectors(vsi);
+ ice_vsi_clear_rings(vsi);
+
+ ice_vsi_put_qs(vsi);
+ pf->q_left_tx += vsi->alloc_txq;
+ pf->q_left_rx += vsi->alloc_rxq;
+
+ ice_vsi_clear(vsi);
+
+ return 0;
+}
+
+/**
+ * ice_open - Called when a network interface becomes active
+ * @netdev: network interface device structure
+ *
+ * The open entry point is called when a network interface is made
+ * active by the system (IFF_UP). At this point all resources needed
+ * for transmit and receive operations are allocated, the interrupt
+ * handler is registered with the OS, the netdev watchdog is enabled,
+ * and the stack is notified that the interface is ready.
+ *
+ * Returns 0 on success, negative value on failure
+ */
+static int ice_open(struct net_device *netdev)
+{
+ struct ice_netdev_priv *np = netdev_priv(netdev);
+ struct ice_vsi *vsi = np->vsi;
+ int err;
+
+ netif_carrier_off(netdev);
+
+ err = ice_vsi_open(vsi);
+
+ if (err)
+ netdev_err(netdev, "Failed to open VSI 0x%04X on switch 0x%04X\n",
+ vsi->vsi_num, vsi->vsw->sw_id);
+ return err;
+}
+
+/**
+ * ice_stop - Disables a network interface
+ * @netdev: network interface device structure
+ *
+ * The stop entry point is called when an interface is de-activated by the OS,
+ * and the netdevice enters the DOWN state. The hardware is still under the
+ * driver's control, but the netdev interface is disabled.
+ *
+ * Returns success only - not allowed to fail
+ */
+static int ice_stop(struct net_device *netdev)
+{
+ struct ice_netdev_priv *np = netdev_priv(netdev);
+ struct ice_vsi *vsi = np->vsi;
+
+ ice_vsi_close(vsi);
+
+ return 0;
+}
+
+static const struct net_device_ops ice_netdev_ops = {
+ .ndo_open = ice_open,
+ .ndo_stop = ice_stop,
+};
}
/**
+ * ice_sched_get_qgrp_layer - get the current queue group layer number
+ * @hw: pointer to the hw struct
+ *
+ * This function returns the current queue group layer number
+ */
+static u8 ice_sched_get_qgrp_layer(struct ice_hw *hw)
+{
+ /* It's always total layers - 1, the array is 0 relative so -2 */
+ return hw->num_tx_sched_layers - ICE_QGRP_LAYER_OFFSET;
+}
+
+/**
* ice_rm_dflt_leaf_node - remove the default leaf node in the tree
* @pi: port information structure
*
devm_kfree(ice_hw_to_dev(hw), buf);
return status;
}
+
+/**
+ * ice_sched_get_vsi_info_entry - Get the vsi entry list for given vsi_id
+ * @pi: port information structure
+ * @vsi_id: vsi id
+ *
+ * This function retrieves the vsi list for the given vsi id
+ */
+static struct ice_sched_vsi_info *
+ice_sched_get_vsi_info_entry(struct ice_port_info *pi, u16 vsi_id)
+{
+ struct ice_sched_vsi_info *list_elem;
+
+ if (!pi)
+ return NULL;
+
+ list_for_each_entry(list_elem, &pi->vsi_info_list, list_entry)
+ if (list_elem->vsi_id == vsi_id)
+ return list_elem;
+ return NULL;
+}
+
+/**
+ * ice_sched_find_node_in_subtree - Find node in part of base node subtree
+ * @hw: pointer to the hw struct
+ * @base: pointer to the base node
+ * @node: pointer to the node to search
+ *
+ * This function checks whether a given node is part of the base node
+ * subtree or not
+ */
+static bool
+ice_sched_find_node_in_subtree(struct ice_hw *hw, struct ice_sched_node *base,
+ struct ice_sched_node *node)
+{
+ u8 i;
+
+ for (i = 0; i < base->num_children; i++) {
+ struct ice_sched_node *child = base->children[i];
+
+ if (node == child)
+ return true;
+ if (child->tx_sched_layer > node->tx_sched_layer)
+ return false;
+ /* this recursion is intentional, and wouldn't
+ * go more than 8 calls
+ */
+ if (ice_sched_find_node_in_subtree(hw, child, node))
+ return true;
+ }
+ return false;
+}
+
+/**
+ * ice_sched_get_free_qparent - Get a free lan or rdma q group node
+ * @pi: port information structure
+ * @vsi_id: vsi id
+ * @tc: branch number
+ * @owner: lan or rdma
+ *
+ * This function retrieves a free lan or rdma q group node
+ */
+struct ice_sched_node *
+ice_sched_get_free_qparent(struct ice_port_info *pi, u16 vsi_id, u8 tc,
+ u8 owner)
+{
+ struct ice_sched_node *vsi_node, *qgrp_node = NULL;
+ struct ice_sched_vsi_info *list_elem;
+ u16 max_children;
+ u8 qgrp_layer;
+
+ qgrp_layer = ice_sched_get_qgrp_layer(pi->hw);
+ max_children = le16_to_cpu(pi->hw->layer_info[qgrp_layer].max_children);
+ list_elem = ice_sched_get_vsi_info_entry(pi, vsi_id);
+ if (!list_elem)
+ goto lan_q_exit;
+ vsi_node = list_elem->vsi_node[tc];
+ /* validate invalid VSI id */
+ if (!vsi_node)
+ goto lan_q_exit;
+ /* get the first q group node from VSI sub-tree */
+ qgrp_node = ice_sched_get_first_node(pi->hw, vsi_node, qgrp_layer);
+ while (qgrp_node) {
+ /* make sure the qgroup node is part of the VSI subtree */
+ if (ice_sched_find_node_in_subtree(pi->hw, vsi_node, qgrp_node))
+ if (qgrp_node->num_children < max_children &&
+ qgrp_node->owner == owner)
+ break;
+ qgrp_node = qgrp_node->sibling;
+ }
+lan_q_exit:
+ return qgrp_node;
+}
#include "ice_common.h"
+#define ICE_QGRP_LAYER_OFFSET 2
+
struct ice_sched_agg_vsi_info {
struct list_head list_entry;
DECLARE_BITMAP(tc_bitmap, ICE_MAX_TRAFFIC_CLASS);
struct ice_aqc_txsched_elem_data *info);
void ice_free_sched_node(struct ice_port_info *pi, struct ice_sched_node *node);
struct ice_sched_node *ice_sched_get_tc_node(struct ice_port_info *pi, u8 tc);
+struct ice_sched_node *
+ice_sched_get_free_qparent(struct ice_port_info *pi, u16 vsi_id, u8 tc,
+ u8 owner);
#endif /* _ICE_SCHED_H_ */
ICE_ERR_PARAM = -1,
ICE_ERR_NOT_IMPL = -2,
ICE_ERR_NOT_READY = -3,
+ ICE_ERR_BAD_PTR = -5,
ICE_ERR_INVAL_SIZE = -6,
ICE_ERR_DEVICE_NOT_SUPPORTED = -8,
ICE_ERR_RESET_FAILED = -9,
ICE_ERR_OUT_OF_RANGE = -13,
ICE_ERR_ALREADY_EXISTS = -14,
ICE_ERR_DOES_NOT_EXIST = -15,
+ ICE_ERR_MAX_LIMIT = -17,
ICE_ERR_BUF_TOO_SHORT = -52,
ICE_ERR_NVM_BLANK_MODE = -53,
ICE_ERR_AQ_ERROR = -100,
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2018, Intel Corporation. */
+
+/* The driver transmit and receive code */
+
+#include <linux/prefetch.h>
+#include <linux/mm.h>
+#include "ice.h"
+
+/**
+ * ice_unmap_and_free_tx_buf - Release a Tx buffer
+ * @ring: the ring that owns the buffer
+ * @tx_buf: the buffer to free
+ */
+static void
+ice_unmap_and_free_tx_buf(struct ice_ring *ring, struct ice_tx_buf *tx_buf)
+{
+ if (tx_buf->skb) {
+ dev_kfree_skb_any(tx_buf->skb);
+ if (dma_unmap_len(tx_buf, len))
+ dma_unmap_single(ring->dev,
+ dma_unmap_addr(tx_buf, dma),
+ dma_unmap_len(tx_buf, len),
+ DMA_TO_DEVICE);
+ } else if (dma_unmap_len(tx_buf, len)) {
+ dma_unmap_page(ring->dev,
+ dma_unmap_addr(tx_buf, dma),
+ dma_unmap_len(tx_buf, len),
+ DMA_TO_DEVICE);
+ }
+
+ tx_buf->next_to_watch = NULL;
+ tx_buf->skb = NULL;
+ dma_unmap_len_set(tx_buf, len, 0);
+ /* tx_buf must be completely set up in the transmit path */
+}
+
+static struct netdev_queue *txring_txq(const struct ice_ring *ring)
+{
+ return netdev_get_tx_queue(ring->netdev, ring->q_index);
+}
+
+/**
+ * ice_clean_tx_ring - Free any empty Tx buffers
+ * @tx_ring: ring to be cleaned
+ */
+void ice_clean_tx_ring(struct ice_ring *tx_ring)
+{
+ unsigned long size;
+ u16 i;
+
+ /* ring already cleared, nothing to do */
+ if (!tx_ring->tx_buf)
+ return;
+
+ /* Free all the Tx ring sk_bufss */
+ for (i = 0; i < tx_ring->count; i++)
+ ice_unmap_and_free_tx_buf(tx_ring, &tx_ring->tx_buf[i]);
+
+ size = sizeof(struct ice_tx_buf) * tx_ring->count;
+ memset(tx_ring->tx_buf, 0, size);
+
+ /* Zero out the descriptor ring */
+ memset(tx_ring->desc, 0, tx_ring->size);
+
+ tx_ring->next_to_use = 0;
+ tx_ring->next_to_clean = 0;
+
+ if (!tx_ring->netdev)
+ return;
+
+ /* cleanup Tx queue statistics */
+ netdev_tx_reset_queue(txring_txq(tx_ring));
+}
+
+/**
+ * ice_free_tx_ring - Free Tx resources per queue
+ * @tx_ring: Tx descriptor ring for a specific queue
+ *
+ * Free all transmit software resources
+ */
+void ice_free_tx_ring(struct ice_ring *tx_ring)
+{
+ ice_clean_tx_ring(tx_ring);
+ devm_kfree(tx_ring->dev, tx_ring->tx_buf);
+ tx_ring->tx_buf = NULL;
+
+ if (tx_ring->desc) {
+ dmam_free_coherent(tx_ring->dev, tx_ring->size,
+ tx_ring->desc, tx_ring->dma);
+ tx_ring->desc = NULL;
+ }
+}
+
+/**
+ * ice_setup_tx_ring - Allocate the Tx descriptors
+ * @tx_ring: the tx ring to set up
+ *
+ * Return 0 on success, negative on error
+ */
+int ice_setup_tx_ring(struct ice_ring *tx_ring)
+{
+ struct device *dev = tx_ring->dev;
+ int bi_size;
+
+ if (!dev)
+ return -ENOMEM;
+
+ /* warn if we are about to overwrite the pointer */
+ WARN_ON(tx_ring->tx_buf);
+ bi_size = sizeof(struct ice_tx_buf) * tx_ring->count;
+ tx_ring->tx_buf = devm_kzalloc(dev, bi_size, GFP_KERNEL);
+ if (!tx_ring->tx_buf)
+ return -ENOMEM;
+
+ /* round up to nearest 4K */
+ tx_ring->size = tx_ring->count * sizeof(struct ice_tx_desc);
+ tx_ring->size = ALIGN(tx_ring->size, 4096);
+ tx_ring->desc = dmam_alloc_coherent(dev, tx_ring->size, &tx_ring->dma,
+ GFP_KERNEL);
+ if (!tx_ring->desc) {
+ dev_err(dev, "Unable to allocate memory for the Tx descriptor ring, size=%d\n",
+ tx_ring->size);
+ goto err;
+ }
+
+ tx_ring->next_to_use = 0;
+ tx_ring->next_to_clean = 0;
+ return 0;
+
+err:
+ devm_kfree(dev, tx_ring->tx_buf);
+ tx_ring->tx_buf = NULL;
+ return -ENOMEM;
+}
+
+/**
+ * ice_clean_rx_ring - Free Rx buffers
+ * @rx_ring: ring to be cleaned
+ */
+void ice_clean_rx_ring(struct ice_ring *rx_ring)
+{
+ struct device *dev = rx_ring->dev;
+ unsigned long size;
+ u16 i;
+
+ /* ring already cleared, nothing to do */
+ if (!rx_ring->rx_buf)
+ return;
+
+ /* Free all the Rx ring sk_buffs */
+ for (i = 0; i < rx_ring->count; i++) {
+ struct ice_rx_buf *rx_buf = &rx_ring->rx_buf[i];
+
+ if (rx_buf->skb) {
+ dev_kfree_skb(rx_buf->skb);
+ rx_buf->skb = NULL;
+ }
+ if (!rx_buf->page)
+ continue;
+
+ dma_unmap_page(dev, rx_buf->dma, PAGE_SIZE, DMA_FROM_DEVICE);
+ __free_pages(rx_buf->page, 0);
+
+ rx_buf->page = NULL;
+ rx_buf->page_offset = 0;
+ }
+
+ size = sizeof(struct ice_rx_buf) * rx_ring->count;
+ memset(rx_ring->rx_buf, 0, size);
+
+ /* Zero out the descriptor ring */
+ memset(rx_ring->desc, 0, rx_ring->size);
+
+ rx_ring->next_to_alloc = 0;
+ rx_ring->next_to_clean = 0;
+ rx_ring->next_to_use = 0;
+}
+
+/**
+ * ice_free_rx_ring - Free Rx resources
+ * @rx_ring: ring to clean the resources from
+ *
+ * Free all receive software resources
+ */
+void ice_free_rx_ring(struct ice_ring *rx_ring)
+{
+ ice_clean_rx_ring(rx_ring);
+ devm_kfree(rx_ring->dev, rx_ring->rx_buf);
+ rx_ring->rx_buf = NULL;
+
+ if (rx_ring->desc) {
+ dmam_free_coherent(rx_ring->dev, rx_ring->size,
+ rx_ring->desc, rx_ring->dma);
+ rx_ring->desc = NULL;
+ }
+}
+
+/**
+ * ice_setup_rx_ring - Allocate the Rx descriptors
+ * @rx_ring: the rx ring to set up
+ *
+ * Return 0 on success, negative on error
+ */
+int ice_setup_rx_ring(struct ice_ring *rx_ring)
+{
+ struct device *dev = rx_ring->dev;
+ int bi_size;
+
+ if (!dev)
+ return -ENOMEM;
+
+ /* warn if we are about to overwrite the pointer */
+ WARN_ON(rx_ring->rx_buf);
+ bi_size = sizeof(struct ice_rx_buf) * rx_ring->count;
+ rx_ring->rx_buf = devm_kzalloc(dev, bi_size, GFP_KERNEL);
+ if (!rx_ring->rx_buf)
+ return -ENOMEM;
+
+ /* round up to nearest 4K */
+ rx_ring->size = rx_ring->count * sizeof(union ice_32byte_rx_desc);
+ rx_ring->size = ALIGN(rx_ring->size, 4096);
+ rx_ring->desc = dmam_alloc_coherent(dev, rx_ring->size, &rx_ring->dma,
+ GFP_KERNEL);
+ if (!rx_ring->desc) {
+ dev_err(dev, "Unable to allocate memory for the Rx descriptor ring, size=%d\n",
+ rx_ring->size);
+ goto err;
+ }
+
+ rx_ring->next_to_use = 0;
+ rx_ring->next_to_clean = 0;
+ return 0;
+
+err:
+ devm_kfree(dev, rx_ring->rx_buf);
+ rx_ring->rx_buf = NULL;
+ return -ENOMEM;
+}
+
+/**
+ * ice_release_rx_desc - Store the new tail and head values
+ * @rx_ring: ring to bump
+ * @val: new head index
+ */
+static void ice_release_rx_desc(struct ice_ring *rx_ring, u32 val)
+{
+ rx_ring->next_to_use = val;
+
+ /* update next to alloc since we have filled the ring */
+ rx_ring->next_to_alloc = val;
+
+ /* Force memory writes to complete before letting h/w
+ * know there are new descriptors to fetch. (Only
+ * applicable for weak-ordered memory model archs,
+ * such as IA-64).
+ */
+ wmb();
+ writel(val, rx_ring->tail);
+}
+
+/**
+ * ice_alloc_mapped_page - recycle or make a new page
+ * @rx_ring: ring to use
+ * @bi: rx_buf struct to modify
+ *
+ * Returns true if the page was successfully allocated or
+ * reused.
+ */
+static bool ice_alloc_mapped_page(struct ice_ring *rx_ring,
+ struct ice_rx_buf *bi)
+{
+ struct page *page = bi->page;
+ dma_addr_t dma;
+
+ /* since we are recycling buffers we should seldom need to alloc */
+ if (likely(page))
+ return true;
+
+ /* alloc new page for storage */
+ page = alloc_page(GFP_ATOMIC | __GFP_NOWARN);
+ if (unlikely(!page))
+ return false;
+
+ /* map page for use */
+ dma = dma_map_page(rx_ring->dev, page, 0, PAGE_SIZE, DMA_FROM_DEVICE);
+
+ /* if mapping failed free memory back to system since
+ * there isn't much point in holding memory we can't use
+ */
+ if (dma_mapping_error(rx_ring->dev, dma)) {
+ __free_pages(page, 0);
+ return false;
+ }
+
+ bi->dma = dma;
+ bi->page = page;
+ bi->page_offset = 0;
+
+ return true;
+}
+
+/**
+ * ice_alloc_rx_bufs - Replace used receive buffers
+ * @rx_ring: ring to place buffers on
+ * @cleaned_count: number of buffers to replace
+ *
+ * Returns false if all allocations were successful, true if any fail
+ */
+bool ice_alloc_rx_bufs(struct ice_ring *rx_ring, u16 cleaned_count)
+{
+ union ice_32b_rx_flex_desc *rx_desc;
+ u16 ntu = rx_ring->next_to_use;
+ struct ice_rx_buf *bi;
+
+ /* do nothing if no valid netdev defined */
+ if (!rx_ring->netdev || !cleaned_count)
+ return false;
+
+ /* get the RX descriptor and buffer based on next_to_use */
+ rx_desc = ICE_RX_DESC(rx_ring, ntu);
+ bi = &rx_ring->rx_buf[ntu];
+
+ do {
+ if (!ice_alloc_mapped_page(rx_ring, bi))
+ goto no_bufs;
+
+ /* Refresh the desc even if buffer_addrs didn't change
+ * because each write-back erases this info.
+ */
+ rx_desc->read.pkt_addr = cpu_to_le64(bi->dma + bi->page_offset);
+
+ rx_desc++;
+ bi++;
+ ntu++;
+ if (unlikely(ntu == rx_ring->count)) {
+ rx_desc = ICE_RX_DESC(rx_ring, 0);
+ bi = rx_ring->rx_buf;
+ ntu = 0;
+ }
+
+ /* clear the status bits for the next_to_use descriptor */
+ rx_desc->wb.status_error0 = 0;
+
+ cleaned_count--;
+ } while (cleaned_count);
+
+ if (rx_ring->next_to_use != ntu)
+ ice_release_rx_desc(rx_ring, ntu);
+
+ return false;
+
+no_bufs:
+ if (rx_ring->next_to_use != ntu)
+ ice_release_rx_desc(rx_ring, ntu);
+
+ /* make sure to come back via polling to try again after
+ * allocation failure
+ */
+ return true;
+}
#define _ICE_TXRX_H_
#define ICE_DFLT_IRQ_WORK 256
+#define ICE_RXBUF_2048 2048
+#define ICE_MAX_CHAINED_RX_BUFS 5
+#define ICE_MAX_TXQ_PER_TXQG 128
+
+#define ICE_DESC_UNUSED(R) \
+ ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
+ (R)->next_to_clean - (R)->next_to_use - 1)
+
+struct ice_tx_buf {
+ struct ice_tx_desc *next_to_watch;
+ struct sk_buff *skb;
+ unsigned int bytecount;
+ unsigned short gso_segs;
+ u32 tx_flags;
+ DEFINE_DMA_UNMAP_ADDR(dma);
+ DEFINE_DMA_UNMAP_LEN(len);
+};
+
+struct ice_rx_buf {
+ struct sk_buff *skb;
+ dma_addr_t dma;
+ struct page *page;
+ unsigned int page_offset;
+};
/* this enum matches hardware bits and is meant to be used by DYN_CTLN
* registers and QINT registers or more generally anywhere in the manual
ICE_ITR_NONE = 3 /* ITR_NONE must not be used as an index */
};
+/* Header split modes defined by DTYPE field of Rx RLAN context */
+enum ice_rx_dtype {
+ ICE_RX_DTYPE_NO_SPLIT = 0,
+ ICE_RX_DTYPE_HEADER_SPLIT = 1,
+ ICE_RX_DTYPE_SPLIT_ALWAYS = 2,
+};
+
/* indices into GLINT_ITR registers */
#define ICE_RX_ITR ICE_IDX_ITR0
+#define ICE_TX_ITR ICE_IDX_ITR1
#define ICE_ITR_DYNAMIC 0x8000 /* use top bit as a flag */
#define ICE_ITR_8K 0x003E
/* apply ITR HW granularity translation to program the HW registers */
#define ITR_TO_REG(val, itr_gran) (((val) & ~ICE_ITR_DYNAMIC) >> (itr_gran))
+/* Legacy or Advanced Mode Queue */
+#define ICE_TX_ADVANCED 0
+#define ICE_TX_LEGACY 1
+
/* descriptor ring, associated with a VSI */
struct ice_ring {
struct ice_ring *next; /* pointer to next ring in q_vector */
+ void *desc; /* Descriptor ring memory */
struct device *dev; /* Used for DMA mapping */
struct net_device *netdev; /* netdev ring maps to */
struct ice_vsi *vsi; /* Backreference to associated VSI */
struct ice_q_vector *q_vector; /* Backreference to associated vector */
+ u8 __iomem *tail;
+ union {
+ struct ice_tx_buf *tx_buf;
+ struct ice_rx_buf *rx_buf;
+ };
u16 q_index; /* Queue number of ring */
+ u32 txq_teid; /* Added Tx queue TEID */
+
+ /* high bit set means dynamic, use accessor routines to read/write.
+ * hardware supports 2us/1us resolution for the ITR registers.
+ * these values always store the USER setting, and must be converted
+ * before programming to a register.
+ */
+ u16 rx_itr_setting;
+ u16 tx_itr_setting;
+
u16 count; /* Number of descriptors */
u16 reg_idx; /* HW register index of the ring */
+
+ /* used in interrupt processing */
+ u16 next_to_use;
+ u16 next_to_clean;
+
bool ring_active; /* is ring online or not */
+ unsigned int size; /* length of descriptor ring in bytes */
+ dma_addr_t dma; /* physical address of ring */
struct rcu_head rcu; /* to avoid race on free */
+ u16 next_to_alloc;
} ____cacheline_internodealigned_in_smp;
+enum ice_latency_range {
+ ICE_LOWEST_LATENCY = 0,
+ ICE_LOW_LATENCY = 1,
+ ICE_BULK_LATENCY = 2,
+ ICE_ULTRA_LATENCY = 3,
+};
+
struct ice_ring_container {
/* array of pointers to rings */
struct ice_ring *ring;
unsigned int total_bytes; /* total bytes processed this int */
unsigned int total_pkts; /* total packets processed this int */
+ enum ice_latency_range latency_range;
u16 itr;
};
#define ice_for_each_ring(pos, head) \
for (pos = (head).ring; pos; pos = pos->next)
+bool ice_alloc_rx_bufs(struct ice_ring *rxr, u16 cleaned_count);
+void ice_clean_tx_ring(struct ice_ring *tx_ring);
+void ice_clean_rx_ring(struct ice_ring *rx_ring);
+int ice_setup_tx_ring(struct ice_ring *tx_ring);
+int ice_setup_rx_ring(struct ice_ring *rx_ring);
+void ice_free_tx_ring(struct ice_ring *tx_ring);
+void ice_free_rx_ring(struct ice_ring *rx_ring);
#endif /* _ICE_TXRX_H_ */
#include "ice_hw_autogen.h"
#include "ice_osdep.h"
#include "ice_controlq.h"
+#include "ice_lan_tx_rx.h"
/* debug masks - set these bits in hw->debug_mask to control output */
#define ICE_DBG_INIT BIT_ULL(1)
+#define ICE_DBG_QCTX BIT_ULL(6)
#define ICE_DBG_NVM BIT_ULL(7)
#define ICE_DBG_LAN BIT_ULL(8)
#define ICE_DBG_SW BIT_ULL(13)
projects / platform / kernel / linux-starfive.git / commitdiff