enum {
MAX_ETH_QSETS = 64, /* # of Ethernet Tx/Rx queue sets */
+ MAX_CTRL_QUEUES = NCHAN, /* # of control Tx queues */
};
struct adapter;
unsigned int flags; /* flags for state of the queue */
} __rte_cache_aligned;
+struct sge_ctrl_txq { /* State for an SGE control Tx queue */
+ struct sge_txq q; /* txq */
+ struct adapter *adapter; /* adapter associated with this queue */
+ rte_spinlock_t ctrlq_lock; /* control queue lock */
+ u8 full; /* the Tx ring is full */
+ u64 txp; /* number of transmits */
+ struct rte_mempool *mb_pool; /* mempool to generate ctrl pkts */
+} __rte_cache_aligned;
+
struct sge {
struct sge_eth_txq ethtxq[MAX_ETH_QSETS];
struct sge_eth_rxq ethrxq[MAX_ETH_QSETS];
struct sge_rspq fw_evtq __rte_cache_aligned;
+ struct sge_ctrl_txq ctrlq[MAX_CTRL_QUEUES];
u16 max_ethqsets; /* # of available Ethernet queue sets */
u32 stat_len; /* length of status page at ring end */
void t4_sge_tx_monitor_stop(struct adapter *adap);
int t4_eth_xmit(struct sge_eth_txq *txq, struct rte_mbuf *mbuf,
uint16_t nb_pkts);
+int t4_mgmt_tx(struct sge_ctrl_txq *txq, struct rte_mbuf *mbuf);
int t4_ethrx_handler(struct sge_rspq *q, const __be64 *rsp,
const struct pkt_gl *gl);
int t4_sge_init(struct adapter *adap);
int t4_sge_alloc_eth_txq(struct adapter *adap, struct sge_eth_txq *txq,
struct rte_eth_dev *eth_dev, uint16_t queue_id,
unsigned int iqid, int socket_id);
+int t4_sge_alloc_ctrl_txq(struct adapter *adap, struct sge_ctrl_txq *txq,
+ struct rte_eth_dev *eth_dev, uint16_t queue_id,
+ unsigned int iqid, int socket_id);
int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *rspq, bool fwevtq,
struct rte_eth_dev *eth_dev, int intr_idx,
struct sge_fl *fl, rspq_handler_t handler,
unsigned int fl0id, unsigned int fl1id);
int t4_eth_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
unsigned int vf, unsigned int eqid);
+int t4_ctrl_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
+ unsigned int vf, unsigned int eqid);
static inline unsigned int core_ticks_per_usec(const struct adapter *adap)
{
}
}
+/**
+ * t4_ctrl_eq_free - free a control egress queue
+ * @adap: the adapter
+ * @mbox: mailbox to use for the FW command
+ * @pf: the PF owning the queue
+ * @vf: the VF owning the queue
+ * @eqid: egress queue id
+ *
+ * Frees a control egress queue.
+ */
+int t4_ctrl_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
+ unsigned int vf, unsigned int eqid)
+{
+ struct fw_eq_ctrl_cmd c;
+
+ memset(&c, 0, sizeof(c));
+ c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_EQ_CTRL_CMD) |
+ F_FW_CMD_REQUEST | F_FW_CMD_EXEC |
+ V_FW_EQ_CTRL_CMD_PFN(pf) |
+ V_FW_EQ_CTRL_CMD_VFN(vf));
+ c.alloc_to_len16 = cpu_to_be32(F_FW_EQ_CTRL_CMD_FREE | FW_LEN16(c));
+ c.cmpliqid_eqid = cpu_to_be32(V_FW_EQ_CTRL_CMD_EQID(eqid));
+ return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
+}
+
/**
* t4_handle_fw_rpl - process a FW reply message
* @adap: the adapter
FW_PFVF_CMD = 0x09,
FW_IQ_CMD = 0x10,
FW_EQ_ETH_CMD = 0x12,
+ FW_EQ_CTRL_CMD = 0x13,
FW_VI_CMD = 0x14,
FW_VI_MAC_CMD = 0x15,
FW_VI_RXMODE_CMD = 0x16,
#define G_FW_EQ_ETH_CMD_VIID(x) \
(((x) >> S_FW_EQ_ETH_CMD_VIID) & M_FW_EQ_ETH_CMD_VIID)
+struct fw_eq_ctrl_cmd {
+ __be32 op_to_vfn;
+ __be32 alloc_to_len16;
+ __be32 cmpliqid_eqid;
+ __be32 physeqid_pkd;
+ __be32 fetchszm_to_iqid;
+ __be32 dcaen_to_eqsize;
+ __be64 eqaddr;
+};
+
+#define S_FW_EQ_CTRL_CMD_PFN 8
+#define V_FW_EQ_CTRL_CMD_PFN(x) ((x) << S_FW_EQ_CTRL_CMD_PFN)
+
+#define S_FW_EQ_CTRL_CMD_VFN 0
+#define V_FW_EQ_CTRL_CMD_VFN(x) ((x) << S_FW_EQ_CTRL_CMD_VFN)
+
+#define S_FW_EQ_CTRL_CMD_ALLOC 31
+#define V_FW_EQ_CTRL_CMD_ALLOC(x) ((x) << S_FW_EQ_CTRL_CMD_ALLOC)
+#define F_FW_EQ_CTRL_CMD_ALLOC V_FW_EQ_CTRL_CMD_ALLOC(1U)
+
+#define S_FW_EQ_CTRL_CMD_FREE 30
+#define V_FW_EQ_CTRL_CMD_FREE(x) ((x) << S_FW_EQ_CTRL_CMD_FREE)
+#define F_FW_EQ_CTRL_CMD_FREE V_FW_EQ_CTRL_CMD_FREE(1U)
+
+#define S_FW_EQ_CTRL_CMD_EQSTART 28
+#define V_FW_EQ_CTRL_CMD_EQSTART(x) ((x) << S_FW_EQ_CTRL_CMD_EQSTART)
+#define F_FW_EQ_CTRL_CMD_EQSTART V_FW_EQ_CTRL_CMD_EQSTART(1U)
+
+#define S_FW_EQ_CTRL_CMD_CMPLIQID 20
+#define V_FW_EQ_CTRL_CMD_CMPLIQID(x) ((x) << S_FW_EQ_CTRL_CMD_CMPLIQID)
+
+#define S_FW_EQ_CTRL_CMD_EQID 0
+#define M_FW_EQ_CTRL_CMD_EQID 0xfffff
+#define V_FW_EQ_CTRL_CMD_EQID(x) ((x) << S_FW_EQ_CTRL_CMD_EQID)
+#define G_FW_EQ_CTRL_CMD_EQID(x) \
+ (((x) >> S_FW_EQ_CTRL_CMD_EQID) & M_FW_EQ_CTRL_CMD_EQID)
+
+#define S_FW_EQ_CTRL_CMD_PHYSEQID 0
+#define M_FW_EQ_CTRL_CMD_PHYSEQID 0xfffff
+#define V_FW_EQ_CTRL_CMD_PHYSEQID(x) ((x) << S_FW_EQ_CTRL_CMD_PHYSEQID)
+#define G_FW_EQ_CTRL_CMD_PHYSEQID(x) \
+ (((x) >> S_FW_EQ_CTRL_CMD_PHYSEQID) & M_FW_EQ_CTRL_CMD_PHYSEQID)
+
+#define S_FW_EQ_CTRL_CMD_FETCHRO 22
+#define V_FW_EQ_CTRL_CMD_FETCHRO(x) ((x) << S_FW_EQ_CTRL_CMD_FETCHRO)
+#define F_FW_EQ_CTRL_CMD_FETCHRO V_FW_EQ_CTRL_CMD_FETCHRO(1U)
+
+#define S_FW_EQ_CTRL_CMD_HOSTFCMODE 20
+#define M_FW_EQ_CTRL_CMD_HOSTFCMODE 0x3
+#define V_FW_EQ_CTRL_CMD_HOSTFCMODE(x) ((x) << S_FW_EQ_CTRL_CMD_HOSTFCMODE)
+
+#define S_FW_EQ_CTRL_CMD_PCIECHN 16
+#define V_FW_EQ_CTRL_CMD_PCIECHN(x) ((x) << S_FW_EQ_CTRL_CMD_PCIECHN)
+
+#define S_FW_EQ_CTRL_CMD_IQID 0
+#define V_FW_EQ_CTRL_CMD_IQID(x) ((x) << S_FW_EQ_CTRL_CMD_IQID)
+
+#define S_FW_EQ_CTRL_CMD_FBMIN 23
+#define V_FW_EQ_CTRL_CMD_FBMIN(x) ((x) << S_FW_EQ_CTRL_CMD_FBMIN)
+
+#define S_FW_EQ_CTRL_CMD_FBMAX 20
+#define V_FW_EQ_CTRL_CMD_FBMAX(x) ((x) << S_FW_EQ_CTRL_CMD_FBMAX)
+
+#define S_FW_EQ_CTRL_CMD_CIDXFTHRESH 16
+#define V_FW_EQ_CTRL_CMD_CIDXFTHRESH(x) ((x) << S_FW_EQ_CTRL_CMD_CIDXFTHRESH)
+
+#define S_FW_EQ_CTRL_CMD_EQSIZE 0
+#define V_FW_EQ_CTRL_CMD_EQSIZE(x) ((x) << S_FW_EQ_CTRL_CMD_EQSIZE)
+
enum fw_vi_func {
FW_VI_FUNC_ETH,
};
void init_rspq(struct adapter *adap, struct sge_rspq *q, unsigned int us,
unsigned int cnt, unsigned int size, unsigned int iqe_size);
int setup_sge_fwevtq(struct adapter *adapter);
+int setup_sge_ctrl_txq(struct adapter *adapter);
void cfg_queues(struct rte_eth_dev *eth_dev);
int cfg_queue_count(struct rte_eth_dev *eth_dev);
int init_rss(struct adapter *adap);
if (err)
return err;
adapter->flags |= FW_QUEUE_BOUND;
+ err = setup_sge_ctrl_txq(adapter);
+ if (err)
+ return err;
}
err = cfg_queue_count(eth_dev);
return 0;
}
+/**
+ * Setup sge control queues to pass control information.
+ */
+int setup_sge_ctrl_txq(struct adapter *adapter)
+{
+ struct sge *s = &adapter->sge;
+ int err = 0, i = 0;
+
+ for_each_port(adapter, i) {
+ char name[RTE_ETH_NAME_MAX_LEN];
+ struct sge_ctrl_txq *q = &s->ctrlq[i];
+
+ q->q.size = 1024;
+ err = t4_sge_alloc_ctrl_txq(adapter, q,
+ adapter->eth_dev, i,
+ s->fw_evtq.cntxt_id,
+ rte_socket_id());
+ if (err) {
+ dev_err(adapter, "Failed to alloc ctrl txq. Err: %d",
+ err);
+ goto out;
+ }
+ snprintf(name, sizeof(name), "cxgbe_ctrl_pool_%d", i);
+ q->mb_pool = rte_pktmbuf_pool_create(name, s->ctrlq[i].q.size,
+ RTE_CACHE_LINE_SIZE,
+ RTE_MBUF_PRIV_ALIGN,
+ RTE_MBUF_DEFAULT_BUF_SIZE,
+ SOCKET_ID_ANY);
+ if (!q->mb_pool) {
+ dev_err(adapter, "Can't create ctrl pool for port: %d",
+ i);
+ err = -ENOMEM;
+ goto out;
+ }
+ }
+ return 0;
+out:
+ t4_free_sge_resources(adapter);
+ return err;
+}
+
int setup_sge_fwevtq(struct adapter *adapter)
{
struct sge *s = &adapter->sge;
*/
#define MAX_IMM_TX_PKT_LEN 256
+/*
+ * Max size of a WR sent through a control Tx queue.
+ */
+#define MAX_CTRL_WR_LEN SGE_MAX_WR_LEN
+
/*
* Rx buffer sizes for "usembufs" Free List buffers (one ingress packet
* per mbuf buffer). We currently only support two sizes for 1500- and
return 0;
}
+/**
+ * reclaim_completed_tx_imm - reclaim completed control-queue Tx descs
+ * @q: the SGE control Tx queue
+ *
+ * This is a variant of reclaim_completed_tx() that is used for Tx queues
+ * that send only immediate data (presently just the control queues) and
+ * thus do not have any mbufs to release.
+ */
+static inline void reclaim_completed_tx_imm(struct sge_txq *q)
+{
+ int hw_cidx = ntohs(q->stat->cidx);
+ int reclaim = hw_cidx - q->cidx;
+
+ if (reclaim < 0)
+ reclaim += q->size;
+
+ q->in_use -= reclaim;
+ q->cidx = hw_cidx;
+}
+
+/**
+ * is_imm - check whether a packet can be sent as immediate data
+ * @mbuf: the packet
+ *
+ * Returns true if a packet can be sent as a WR with immediate data.
+ */
+static inline int is_imm(const struct rte_mbuf *mbuf)
+{
+ return mbuf->pkt_len <= MAX_CTRL_WR_LEN;
+}
+
+/**
+ * inline_tx_mbuf: inline a packet's data into TX descriptors
+ * @q: the TX queue where the packet will be inlined
+ * @from: pointer to data portion of packet
+ * @to: pointer after cpl where data has to be inlined
+ * @len: length of data to inline
+ *
+ * Inline a packet's contents directly to TX descriptors, starting at
+ * the given position within the TX DMA ring.
+ * Most of the complexity of this operation is dealing with wrap arounds
+ * in the middle of the packet we want to inline.
+ */
+static void inline_tx_mbuf(const struct sge_txq *q, caddr_t from, caddr_t *to,
+ int len)
+{
+ int left = RTE_PTR_DIFF(q->stat, *to);
+
+ if (likely((uintptr_t)*to + len <= (uintptr_t)q->stat)) {
+ rte_memcpy(*to, from, len);
+ *to = RTE_PTR_ADD(*to, len);
+ } else {
+ rte_memcpy(*to, from, left);
+ from = RTE_PTR_ADD(from, left);
+ left = len - left;
+ rte_memcpy((void *)q->desc, from, left);
+ *to = RTE_PTR_ADD((void *)q->desc, left);
+ }
+}
+
+/**
+ * ctrl_xmit - send a packet through an SGE control Tx queue
+ * @q: the control queue
+ * @mbuf: the packet
+ *
+ * Send a packet through an SGE control Tx queue. Packets sent through
+ * a control queue must fit entirely as immediate data.
+ */
+static int ctrl_xmit(struct sge_ctrl_txq *q, struct rte_mbuf *mbuf)
+{
+ unsigned int ndesc;
+ struct fw_wr_hdr *wr;
+ caddr_t dst;
+
+ if (unlikely(!is_imm(mbuf))) {
+ WARN_ON(1);
+ rte_pktmbuf_free(mbuf);
+ return -1;
+ }
+
+ reclaim_completed_tx_imm(&q->q);
+ ndesc = DIV_ROUND_UP(mbuf->pkt_len, sizeof(struct tx_desc));
+ t4_os_lock(&q->ctrlq_lock);
+
+ q->full = txq_avail(&q->q) < ndesc ? 1 : 0;
+ if (unlikely(q->full)) {
+ t4_os_unlock(&q->ctrlq_lock);
+ return -1;
+ }
+
+ wr = (struct fw_wr_hdr *)&q->q.desc[q->q.pidx];
+ dst = (void *)wr;
+ inline_tx_mbuf(&q->q, rte_pktmbuf_mtod(mbuf, caddr_t),
+ &dst, mbuf->data_len);
+
+ txq_advance(&q->q, ndesc);
+ if (unlikely(txq_avail(&q->q) < 64))
+ wr->lo |= htonl(F_FW_WR_EQUEQ);
+
+ q->txp++;
+
+ ring_tx_db(q->adapter, &q->q);
+ t4_os_unlock(&q->ctrlq_lock);
+
+ rte_pktmbuf_free(mbuf);
+ return 0;
+}
+
+/**
+ * t4_mgmt_tx - send a management message
+ * @q: the control queue
+ * @mbuf: the packet containing the management message
+ *
+ * Send a management message through control queue.
+ */
+int t4_mgmt_tx(struct sge_ctrl_txq *q, struct rte_mbuf *mbuf)
+{
+ return ctrl_xmit(q, mbuf);
+}
+
/**
* alloc_ring - allocate resources for an SGE descriptor ring
* @dev: the PCI device's core device
return 0;
}
+int t4_sge_alloc_ctrl_txq(struct adapter *adap, struct sge_ctrl_txq *txq,
+ struct rte_eth_dev *eth_dev, uint16_t queue_id,
+ unsigned int iqid, int socket_id)
+{
+ int ret, nentries;
+ struct fw_eq_ctrl_cmd c;
+ struct sge *s = &adap->sge;
+ struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
+ char z_name[RTE_MEMZONE_NAMESIZE];
+ char z_name_sw[RTE_MEMZONE_NAMESIZE];
+
+ /* Add status entries */
+ nentries = txq->q.size + s->stat_len / sizeof(struct tx_desc);
+
+ snprintf(z_name, sizeof(z_name), "%s_%s_%d_%d",
+ eth_dev->device->driver->name, "ctrl_tx_ring",
+ eth_dev->data->port_id, queue_id);
+ snprintf(z_name_sw, sizeof(z_name_sw), "%s_sw_ring", z_name);
+
+ txq->q.desc = alloc_ring(txq->q.size, sizeof(struct tx_desc),
+ 0, &txq->q.phys_addr,
+ NULL, 0, queue_id,
+ socket_id, z_name, z_name_sw);
+ if (!txq->q.desc)
+ return -ENOMEM;
+
+ memset(&c, 0, sizeof(c));
+ c.op_to_vfn = htonl(V_FW_CMD_OP(FW_EQ_CTRL_CMD) | F_FW_CMD_REQUEST |
+ F_FW_CMD_WRITE | F_FW_CMD_EXEC |
+ V_FW_EQ_CTRL_CMD_PFN(adap->pf) |
+ V_FW_EQ_CTRL_CMD_VFN(0));
+ c.alloc_to_len16 = htonl(F_FW_EQ_CTRL_CMD_ALLOC |
+ F_FW_EQ_CTRL_CMD_EQSTART | (sizeof(c) / 16));
+ c.cmpliqid_eqid = htonl(V_FW_EQ_CTRL_CMD_CMPLIQID(0));
+ c.physeqid_pkd = htonl(0);
+ c.fetchszm_to_iqid =
+ htonl(V_FW_EQ_CTRL_CMD_HOSTFCMODE(X_HOSTFCMODE_NONE) |
+ V_FW_EQ_CTRL_CMD_PCIECHN(pi->tx_chan) |
+ F_FW_EQ_CTRL_CMD_FETCHRO | V_FW_EQ_CTRL_CMD_IQID(iqid));
+ c.dcaen_to_eqsize =
+ htonl(V_FW_EQ_CTRL_CMD_FBMIN(X_FETCHBURSTMIN_64B) |
+ V_FW_EQ_CTRL_CMD_FBMAX(X_FETCHBURSTMAX_512B) |
+ V_FW_EQ_CTRL_CMD_EQSIZE(nentries));
+ c.eqaddr = cpu_to_be64(txq->q.phys_addr);
+
+ ret = t4_wr_mbox(adap, adap->mbox, &c, sizeof(c), &c);
+ if (ret) {
+ txq->q.desc = NULL;
+ return ret;
+ }
+
+ init_txq(adap, &txq->q, G_FW_EQ_CTRL_CMD_EQID(ntohl(c.cmpliqid_eqid)),
+ G_FW_EQ_CTRL_CMD_EQID(ntohl(c. physeqid_pkd)));
+ txq->adapter = adap;
+ txq->full = 0;
+ return 0;
+}
+
static void free_txq(struct sge_txq *q)
{
q->cntxt_id = 0;
*/
void t4_free_sge_resources(struct adapter *adap)
{
- int i;
+ unsigned int i;
struct sge_eth_rxq *rxq = &adap->sge.ethrxq[0];
struct sge_eth_txq *txq = &adap->sge.ethtxq[0];
}
}
+ /* clean up control Tx queues */
+ for (i = 0; i < ARRAY_SIZE(adap->sge.ctrlq); i++) {
+ struct sge_ctrl_txq *cq = &adap->sge.ctrlq[i];
+
+ if (cq->q.desc) {
+ reclaim_completed_tx_imm(&cq->q);
+ t4_ctrl_eq_free(adap, adap->mbox, adap->pf, 0,
+ cq->q.cntxt_id);
+ free_txq(&cq->q);
+ }
+ }
+
if (adap->sge.fw_evtq.desc)
free_rspq_fl(adap, &adap->sge.fw_evtq, NULL);
}
git.droids-corp.org / dpdk.git / commitdiff