[PATCH] cxgb4i: add support for T5 adapter
From: Karen Xie <kxie@xxxxxxxxxxx>
Adds support for Chelsio T5 adapter.
Signed-off-by: Karen Xie <kxie@xxxxxxxxxxx>
---
drivers/scsi/cxgbi/cxgb4i/cxgb4i.c | 159 +++++++++++++++++++++++++++++-------
1 files changed, 128 insertions(+), 31 deletions(-)
diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
index 3fecf35..e659feb 100644
--- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
+++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
@@ -20,6 +20,7 @@
#include <net/dst.h>
#include <linux/netdevice.h>
+#include "t4_regs.h"
#include "t4_msg.h"
#include "cxgb4.h"
#include "cxgb4_uld.h"
@@ -32,13 +33,12 @@ static unsigned int dbg_level;
#include "../libcxgbi.h"
#define DRV_MODULE_NAME "cxgb4i"
-#define DRV_MODULE_DESC "Chelsio T4 iSCSI Driver"
-#define DRV_MODULE_VERSION "0.9.1"
-#define DRV_MODULE_RELDATE "Aug. 2010"
+#define DRV_MODULE_DESC "Chelsio T4/T5 iSCSI Driver"
+#define DRV_MODULE_VERSION "0.9.4"
static char version[] =
DRV_MODULE_DESC " " DRV_MODULE_NAME
- " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
+ " v" DRV_MODULE_VERSION "\n";
MODULE_AUTHOR("Chelsio Communications, Inc.");
MODULE_DESCRIPTION(DRV_MODULE_DESC);
@@ -175,10 +175,56 @@ static inline int is_ofld_imm(const struct sk_buff *skb)
sizeof(struct fw_ofld_tx_data_wr));
}
+
+#define VLAN_NONE 0xfff
+#define FILTER_SEL_VLAN_NONE 0xffff
+#define FILTER_SEL_WIDTH_P_FC (3+1) /* port uses 3 bits, FCoE one bit */
+#define FILTER_SEL_WIDTH_VIN_P_FC \
+ (6 + 7 + FILTER_SEL_WIDTH_P_FC) /* 6 bits are unused, VF uses 7 bits*/
+#define FILTER_SEL_WIDTH_TAG_P_FC \
+ (3 + FILTER_SEL_WIDTH_VIN_P_FC) /* PF uses 3 bits */
+#define FILTER_SEL_WIDTH_VLD_TAG_P_FC (1 + FILTER_SEL_WIDTH_TAG_P_FC)
+
+static unsigned int select_ntuple(struct cxgbi_device *cdev,
+ struct l2t_entry *l2t)
+{
+ struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
+ unsigned int ntuple = 0;
+ u32 viid;
+
+ switch (lldi->filt_mode) {
+
+ /* default filter mode */
+ case HW_TPL_FR_MT_PR_IV_P_FC:
+ if (l2t->vlan == VLAN_NONE)
+ ntuple |= FILTER_SEL_VLAN_NONE << FILTER_SEL_WIDTH_P_FC;
+ else {
+ ntuple |= l2t->vlan << FILTER_SEL_WIDTH_P_FC;
+ ntuple |= 1 << FILTER_SEL_WIDTH_VLD_TAG_P_FC;
+ }
+ ntuple |= l2t->lport << S_PORT | IPPROTO_TCP <<
+ FILTER_SEL_WIDTH_VLD_TAG_P_FC;
+ break;
+ case HW_TPL_FR_MT_PR_OV_P_FC: {
+ viid = cxgb4_port_viid(l2t->neigh->dev);
+
+ ntuple |= FW_VIID_VIN_GET(viid) << FILTER_SEL_WIDTH_P_FC;
+ ntuple |= FW_VIID_PFN_GET(viid) << FILTER_SEL_WIDTH_VIN_P_FC;
+ ntuple |= FW_VIID_VIVLD_GET(viid) << FILTER_SEL_WIDTH_TAG_P_FC;
+ ntuple |= l2t->lport << S_PORT | IPPROTO_TCP <<
+ FILTER_SEL_WIDTH_VLD_TAG_P_FC;
+ break;
+ }
+ default:
+ break;
+ }
+ return ntuple;
+}
+
static void send_act_open_req(struct cxgbi_sock *csk, struct sk_buff *skb,
struct l2t_entry *e)
{
- struct cpl_act_open_req *req;
+ struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev);
int wscale = cxgbi_sock_compute_wscale(csk->mss_idx);
unsigned long long opt0;
unsigned int opt2;
@@ -195,29 +241,58 @@ static void send_act_open_req(struct cxgbi_sock *csk, struct sk_buff *skb,
RCV_BUFSIZ(cxgb4i_rcv_win >> 10);
opt2 = RX_CHANNEL(0) |
RSS_QUEUE_VALID |
- (1 << 20) | (1 << 22) |
+ (1 << 20) |
RSS_QUEUE(csk->rss_qid);
- set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id);
- req = (struct cpl_act_open_req *)skb->head;
+ if (is_t4(lldi->adapter_type)) {
+ struct cpl_act_open_req *req =
+ (struct cpl_act_open_req *)skb->head;
- INIT_TP_WR(req, 0);
- OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ,
+ req = (struct cpl_act_open_req *)skb->head;
+
+ INIT_TP_WR(req, 0);
+ OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ,
qid_atid));
- req->local_port = csk->saddr.sin_port;
- req->peer_port = csk->daddr.sin_port;
- req->local_ip = csk->saddr.sin_addr.s_addr;
- req->peer_ip = csk->daddr.sin_addr.s_addr;
- req->opt0 = cpu_to_be64(opt0);
- req->params = 0;
- req->opt2 = cpu_to_be32(opt2);
+ req->local_port = csk->saddr.sin_port;
+ req->peer_port = csk->daddr.sin_port;
+ req->local_ip = csk->saddr.sin_addr.s_addr;
+ req->peer_ip = csk->daddr.sin_addr.s_addr;
+ req->opt0 = cpu_to_be64(opt0);
+ req->params = cpu_to_be32(select_ntuple(csk->cdev, csk->l2t));
+ opt2 |= 1 << 22;
+ req->opt2 = cpu_to_be32(opt2);
- log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
- "csk 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n",
- csk, &req->local_ip, ntohs(req->local_port),
- &req->peer_ip, ntohs(req->peer_port),
- csk->atid, csk->rss_qid);
+ log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
+ "csk t4 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n",
+ csk, &req->local_ip, ntohs(req->local_port),
+ &req->peer_ip, ntohs(req->peer_port),
+ csk->atid, csk->rss_qid);
+ } else {
+ struct cpl_t5_act_open_req *req =
+ (struct cpl_t5_act_open_req *)skb->head;
+
+ req = (struct cpl_t5_act_open_req *)skb->head;
+
+ INIT_TP_WR(req, 0);
+ OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ,
+ qid_atid));
+ req->local_port = csk->saddr.sin_port;
+ req->peer_port = csk->daddr.sin_port;
+ req->local_ip = csk->saddr.sin_addr.s_addr;
+ req->peer_ip = csk->daddr.sin_addr.s_addr;
+ req->opt0 = cpu_to_be64(opt0);
+ req->params = cpu_to_be32(select_ntuple(csk->cdev, csk->l2t));
+ opt2 |= 1 << 31;
+ req->opt2 = cpu_to_be32(opt2);
+ log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
+ "csk t5 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n",
+ csk, &req->local_ip, ntohs(req->local_port),
+ &req->peer_ip, ntohs(req->peer_port),
+ csk->atid, csk->rss_qid);
+ }
+
+ set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id);
cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t);
}
@@ -632,6 +707,7 @@ static void csk_act_open_retry_timer(unsigned long data)
{
struct sk_buff *skb;
struct cxgbi_sock *csk = (struct cxgbi_sock *)data;
+ struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev);
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx,%u.\n",
@@ -639,7 +715,10 @@ static void csk_act_open_retry_timer(unsigned long data)
cxgbi_sock_get(csk);
spin_lock_bh(&csk->lock);
- skb = alloc_wr(sizeof(struct cpl_act_open_req), 0, GFP_ATOMIC);
+ skb = alloc_wr(is_t4(lldi->adapter_type) ?
+ sizeof(struct cpl_act_open_req) :
+ sizeof(struct cpl_t5_act_open_req),
+ 0, GFP_ATOMIC);
if (!skb)
cxgbi_sock_fail_act_open(csk, -ENOMEM);
else {
@@ -871,7 +950,7 @@ static void do_rx_iscsi_hdr(struct cxgbi_device *cdev, struct sk_buff *skb)
if (!csk->skb_ulp_lhdr) {
unsigned char *bhs;
- unsigned int hlen, dlen;
+ unsigned int hlen, dlen, plen;
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
"csk 0x%p,%u,0x%lx, tid %u, skb 0x%p header.\n",
@@ -890,11 +969,15 @@ static void do_rx_iscsi_hdr(struct cxgbi_device *cdev, struct sk_buff *skb)
hlen = ntohs(cpl->len);
dlen = ntohl(*(unsigned int *)(bhs + 4)) & 0xFFFFFF;
- if ((hlen + dlen) != ISCSI_PDU_LEN(pdu_len_ddp) - 40) {
+ plen = ISCSI_PDU_LEN(pdu_len_ddp);
+ if (is_t4(lldi->adapter_type))
+ plen -= 40;
+
+ if ((hlen + dlen) != plen) {
pr_info("tid 0x%x, CPL_ISCSI_HDR, pdu len "
"mismatch %u != %u + %u, seq 0x%x.\n",
- csk->tid, ISCSI_PDU_LEN(pdu_len_ddp) - 40,
- hlen, dlen, cxgbi_skcb_tcp_seq(skb));
+ csk->tid, plen, hlen, dlen,
+ cxgbi_skcb_tcp_seq(skb));
goto abort_conn;
}
@@ -1154,7 +1237,10 @@ static int init_act_open(struct cxgbi_sock *csk)
}
cxgbi_sock_get(csk);
- skb = alloc_wr(sizeof(struct cpl_act_open_req), 0, GFP_KERNEL);
+ skb = alloc_wr(is_t4(lldi->adapter_type) ?
+ sizeof(struct cpl_act_open_req) :
+ sizeof(struct cpl_t5_act_open_req),
+ 0, GFP_ATOMIC);
if (!skb)
goto rel_resource;
skb->sk = (struct sock *)csk;
@@ -1193,6 +1279,8 @@ rel_resource:
return -EINVAL;
}
+#define CPL_ISCSI_DATA 0xB2
+#define CPL_RX_ISCSI_DDP 0x49
cxgb4i_cplhandler_func cxgb4i_cplhandlers[NUM_CPL_CMDS] = {
[CPL_ACT_ESTABLISH] = do_act_establish,
[CPL_ACT_OPEN_RPL] = do_act_open_rpl,
@@ -1202,8 +1290,10 @@ cxgb4i_cplhandler_func cxgb4i_cplhandlers[NUM_CPL_CMDS] = {
[CPL_CLOSE_CON_RPL] = do_close_con_rpl,
[CPL_FW4_ACK] = do_fw4_ack,
[CPL_ISCSI_HDR] = do_rx_iscsi_hdr,
+ [CPL_ISCSI_DATA] = do_rx_iscsi_hdr,
[CPL_SET_TCB_RPL] = do_set_tcb_rpl,
[CPL_RX_DATA_DDP] = do_rx_data_ddp,
+ [CPL_RX_ISCSI_DDP] = do_rx_data_ddp,
};
int cxgb4i_ofld_init(struct cxgbi_device *cdev)
@@ -1234,14 +1324,20 @@ int cxgb4i_ofld_init(struct cxgbi_device *cdev)
* functions to program the pagepod in h/w
*/
#define ULPMEM_IDATA_MAX_NPPODS 4 /* 256/PPOD_SIZE */
-static inline void ulp_mem_io_set_hdr(struct ulp_mem_io *req,
+static inline void ulp_mem_io_set_hdr(struct cxgb4_lld_info *lldi,
+ struct ulp_mem_io *req,
unsigned int wr_len, unsigned int dlen,
unsigned int pm_addr)
{
struct ulptx_idata *idata = (struct ulptx_idata *)(req + 1);
INIT_ULPTX_WR(req, wr_len, 0, 0);
- req->cmd = htonl(ULPTX_CMD(ULP_TX_MEM_WRITE) | (1 << 23));
+ if (is_t4(lldi->adapter_type))
+ req->cmd = htonl(ULPTX_CMD(ULP_TX_MEM_WRITE) |
+ (ULP_MEMIO_ORDER(1)));
+ else
+ req->cmd = htonl(ULPTX_CMD(ULP_TX_MEM_WRITE) |
+ (V_T5_ULP_MEMIO_IMM(1)));
req->dlen = htonl(ULP_MEMIO_DATA_LEN(dlen >> 5));
req->lock_addr = htonl(ULP_MEMIO_ADDR(pm_addr >> 5));
req->len16 = htonl(DIV_ROUND_UP(wr_len - sizeof(req->wr), 16));
@@ -1257,6 +1353,7 @@ static int ddp_ppod_write_idata(struct cxgbi_device *cdev, unsigned int port_id,
unsigned int gl_pidx)
{
struct cxgbi_ddp_info *ddp = cdev->ddp;
+ struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct sk_buff *skb;
struct ulp_mem_io *req;
struct ulptx_idata *idata;
@@ -1276,7 +1373,7 @@ static int ddp_ppod_write_idata(struct cxgbi_device *cdev, unsigned int port_id,
req = (struct ulp_mem_io *)skb->head;
set_queue(skb, CPL_PRIORITY_CONTROL, NULL);
- ulp_mem_io_set_hdr(req, wr_len, dlen, pm_addr);
+ ulp_mem_io_set_hdr(lldi, req, wr_len, dlen, pm_addr);
idata = (struct ulptx_idata *)(req + 1);
ppod = (struct cxgbi_pagepod *)(idata + 1);
--
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